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How to build A Budget Blow Through Carburetor 

Turbo John
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Blow thru carbs use to be my thing, I had a blast but eventually switched over to EFI. Here are some of the things I did to do a basic blow thru carb. Not a lot to it, but just take your time and understand they basics of it. Maybe this video will save some of you guys some headache if you are trying to do a blow through carb.
Label your electrical connections: www.efitags.com
The baddest turbo's you can buy: www.forcedinductions.com
Cam Specialist, turbo needs: www.liljohnsmotorsports.com

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22 янв 2020

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Комментарии : 215   
@jaydunbar7538
@jaydunbar7538 4 года назад
Good morning, may the algorithm Gods forever bless you.
@stevekissel605
@stevekissel605 4 года назад
Dad was an old school carb guy. We won a lot of races in the 90s circle track and sand drags because we out tuned people.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
yes, the hours tweaking usually get farther than the hours buying new parts!
@cmsracing
@cmsracing 4 года назад
Being a old person I have many carbs but no computer experience, Plus I still like being different, so thanks for the info. It will definitely help on my 2.3L turbo pinto.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
good luck, I ran them for years.
@mikef-gi2dg
@mikef-gi2dg Год назад
Great down to earth intro to BLOW THRU 101.
@Sir_Theodore_Wigglesworth
@Sir_Theodore_Wigglesworth 4 года назад
Hey John, how about a video showing how you converted to coil near plug and set it up on your car?
@timrayburn2461
@timrayburn2461 4 года назад
John I am 65yo,been a hot rodder/drag racer all my life.Been a long time since I made a pass,but I'm just as eat up with it as ever. I've been a subscriber since John Doc introduced you on his channel several months ago. You are an excellent teacher.Keep doing what you.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Thanks, I like to share information. Glad some people find it useful. I hope I never lose the bug!
@charleybetts1053
@charleybetts1053 4 года назад
👍👍👍👍👍
@brandonfairbanks5764
@brandonfairbanks5764 2 года назад
Thanks so much John. You are a god among men for explaining this. I already have so many parts for a blow through that I have to go that route as opposed to efi. Guess I'm getting a wide band and learning how to read plugs better.
@ajcastillo5559
@ajcastillo5559 Год назад
Thank you for this video Ive been wanting to do this for the longest but I just lost my motor mentour in january and its really took a toll but at the same time it lit a fire under my ass! We took my block apart roughly two years ago and ive been slowly aquiring my parts to build my budget boosted fox but then he passed so ive been reading and looking for guidence to finish what we started years ago i have that ive lost someone that i still had much to learn from but appreciate all of you guys spreading this knowledge are to all of us wanting to learn
@twinturbocoyoteftw
@twinturbocoyoteftw 4 года назад
Just finished up my blow thru 331 coupe. I used a Barry Grant bt and so far with a wideband tuning has been fairly easy. Love the content John keep it up sir!!
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Good deal, good luck with the car.
@MegaBuster777
@MegaBuster777 2 месяца назад
The way it works in my mind with all this is, you need to accommodate for boost in the intake because the carb, so long as it's able to supply the fuel, will supply it. In order to maintain fuel, you need to get a solid float that won't collapse upon itself once the bowls are pressurized as well as enough fuel pressure (Which could be accommodated with a higher pressure fuel pump and rising rate fuel pressure regulator as boost rises). The increased fuel pressure will counteract whatever boost pressure you're running so long as the pressure of the fuel in the lines going to the bowls exceed the boost pressure acting upon the bowls from the turbo's intake tract. This is a rough estimate, but I've only been looking into it for 15 minutes when considering the G54b in my Pick-up truck. Thinking of converting some of my used Starion parts I won't be re-using on it in the pickup truck. I don't think I'd wanna use the 16g on it though, or at least keeping it dialed back, as the 16g would be efficient passed 15psi and that's just overkill for a small 4x4 pickup truck, as I'm just looking for a slight boost in torque and turbo'd the engine made just under 200hp with roughly 220ft.lbs at only 2500rpms on a pretty inefficient TBI setup.
@NightWrencher
@NightWrencher 4 года назад
This is awesome man. Great stuff
@griffsrearmountturbothemod1623
@griffsrearmountturbothemod1623 4 года назад
Beautiful info TJ Thankyou from Tasmania
@skylinejunky2200
@skylinejunky2200 4 года назад
Great video. Thoroughly enjoyed it. And your dead on about the efi pricing when you start wanting data collection.
@johnry888
@johnry888 4 года назад
My brains on fire🤯 slot of info to digest!
@coatsengines
@coatsengines 4 года назад
I don’t get on RU-vid much. Glad I saw this one.
@AntonioClaudioMichael
@AntonioClaudioMichael 4 года назад
Very nice informative video on Carbs
@mitchsays1
@mitchsays1 4 года назад
Thank you John! And thank you for the flag and to soldier on the wall behind you.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Thanks
@DaOnE51T
@DaOnE51T 4 года назад
Great content. Well said about Blow thru carbs. They work but they add up as you get faster.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Thanks
@robertkitchell859
@robertkitchell859 4 года назад
Man, this stuff is gold to someone running Carbs, i pulled my hair learning some of this stuff, one of the problems that got me was the stupid o rings on the needles were leaking and allowing fuel to flow past when the bowls were full.
@cmsracing
@cmsracing 4 года назад
They always dry up on a old carb that has not been used fo a while. I put grease on them whenever I put them in, seeme to help.
@321-Gone
@321-Gone 4 года назад
Great video. Carbs still get it done.
@1966badnova
@1966badnova 3 года назад
Thanks for sharing. Been down that route with vortech with a carb.
@pacman3908
@pacman3908 4 года назад
Great info t j im thinking about bldg a blow through carb.love your vids bud
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Thanks
@billyfranks2393
@billyfranks2393 3 года назад
Throwback for sure. I ain’t heard the name Brent in many years he was always trying new stuff. Tyson was flying back then with the silver mustang. Also Lutz when he was blow thru. And that Billy with the stock bottom end 302 twin turbo maroon coupe from Texas. We had a nice grudge car here I built stock bottom end 302, mp70, non intercooled and one of Kevin’s 750’s mid 9’s all day hanging the front wheels made us some money. Fuel system was key and that 13202 regulator with the -10 return
@TurboTA1000
@TurboTA1000 4 года назад
Great vid! I remember turbomustangs back in the day. I based my first turbo combo off a member named doodoobrown. I used a Holset HT60! Lol! Great vid John!
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Ira, he has a youtube channel as well. Boostdoctor. No has a EFI big rim car, and the yota is coming back soon.
@TurboTA1000
@TurboTA1000 4 года назад
That is awesome I will check it out!
@gearsandbeers9100
@gearsandbeers9100 2 года назад
Good video.Planning to modify a Carter 600 for air-cooled turbo setup.
@clint.garage.6092
@clint.garage.6092 4 года назад
Great info Jhon , very cool.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Thanks
@anthonywynn5434
@anthonywynn5434 3 года назад
Sergeant, Roger! Moving, Sergeant! I will be using with the Holley Terminator X EFI instead of a Dominator flow through carb. I just don't care to do all that work, and then still have to tune it as well. Especially since mine is a 468 cid with twin 88's...no. Let the computer do it. However, I am also using F.A.S.T. on another engine due to it's laptop interface which I think is very cool in regards to dialing in exactly what is happening in that engine. Great video Brother I learned new stuff!
@RealGenX
@RealGenX 2 года назад
I see where u are going with the emulsion epoxy but wouldn’t a 10/32 set screw in the high speed bleeds do the same thing waaaaay easier and still be adjustable in the future? Awesome video keep ‘em coming
@84foureyedfoxbody87
@84foureyedfoxbody87 4 года назад
Now we need a budget EFI video .👍😂
@runnningonempty
@runnningonempty 3 года назад
THANKS JOHN!
@lbcelica
@lbcelica 4 года назад
Thanks for the videos.
@azmadmonk1
@azmadmonk1 3 года назад
Thank you for this!
@billbraski2175
@billbraski2175 3 года назад
Thanks bud your the man.
@jasonritter2492
@jasonritter2492 3 года назад
I really like blow through setups. I have a bad ass all black all billet IRD and APD dual needle and seat blow through e85/meth carbs. The APD is on my son's 540 f1x-12 making 1500 ft tq 2200 rwhp and my the IRD is on my 540 f3-136 and both setups are as responsive as efi. I had efi on my setup and took it off and put it on the shelf and order that carb and went back.
@GnarshredProductions
@GnarshredProductions 4 года назад
cool stuff the info should be helpful. Im working on a little blow through project with my 350 vortec engine and a used 650dp carb only looking to run like 10psi boost with twin ebay gt35's should be fun though.
@jonathanlawson4667
@jonathanlawson4667 2 года назад
You ever get that setup going and running???
@vinshanestrickland4179
@vinshanestrickland4179 3 года назад
I used bowlaws carbs for years since early 90s worked for them in early 2000s there a jem hidden in the middle of downtown Orlando florida I learned how to tune by bowlaws . Yes they have the best carburetors on the market if u ask me and price is great you get a true flowing # with them .
@MAGA-Chad
@MAGA-Chad Год назад
Pretty great video, dude. Only problem I'm faced with when it comes to doing this is I'm converting an EFI Hyundai V6 to Carbureted. I'm gonna have to spend some money on a custom manifold and figure out a stand-alone ignition since there's no slot for a HEI distributor. 😅 Motor and Trans of choice on my project truck is a Hyundai 2.7L with an adapted Torqueflite 727.
@paulmbylbie6065
@paulmbylbie6065 3 года назад
Hey that's good s*** there.... Obviously the boost pressure & flow direction has an effect on the bowl vent thats brilliant they're my friend... I would imagine you could probably tap metering Jets in there also as another form of adjustment.......thank you John from PHX AZ
@AntonioClaudioMichael
@AntonioClaudioMichael 4 года назад
Good video
@rickynelson3222
@rickynelson3222 2 года назад
Great video 👍 I'm a roots blower guy and a newbie at this turbo stuff and I don't want 2000 HP
@RocketDogRc
@RocketDogRc 4 года назад
I was wondering if you were ever going mention my buddy Kevin Van Noy at CSU.
@rongravel4585
@rongravel4585 4 года назад
Hey john. Did I ever say your my favorite guy on RU-vid. Cuz your my favorite guy on RU-vid. Lol.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
LOL, thanks...hahaha
@badass6.0powerstroke10
@badass6.0powerstroke10 4 года назад
Awesome Video, was waiting for this one. Planning on a Single Turbo Blow Thru on my BBF When you were talking about the Longer Vent Tubes, you were comparing them to the Pitot/Static Systems on Aircraft. Actually i know exactly what you mean, i work on Sikorsky Blackhawk Military Helicopters. Awesome Video, my buddy ran a CSU Carb years ago on his F-2 Pro Charged 81 Malibu, he was Always on the Turbo Mustang Website, said it was pretty much the Only Blow Thru Forum out there. Very informative, i have a few metering blocks laying around in the garage, gonna practice on drilling them out. Was wondering if you can do a Video on how to determine the Best Size Turbo for your Engine. I have a 521 Stroked 460 BBF in my 86 Mustang. Currently N/A through a 1000 cfm 4150 from Patrick at Pro-Systems. I don't run a specific class, but run 275/60 Drag Radials. Was thinking 98-106 mm Is there a Specific Formula that you do ? Or do you just get let's say a 106mm and basically Tune it with Different Size A/R of the Exhaust Housing ? Any Advice is Greatly Appreciated.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Good luck, rpm is gonna be your big issue with a single turbo. The compressor wheel is important, but you will for sure need a large frame G-trim wheel for that many ci. I would get a 106 or 118. The G trim normally comes with a 1.32 or 1.50 housing, you will have to play with them. I ran a 1.50 on my 421 and it was good. I have a 2.0 for a g-trim wheel if you needed one that big. I would call Jose at Forced Inductions and see what he recommends.
@badass6.0powerstroke10
@badass6.0powerstroke10 4 года назад
@@TurboJohnRacing Hey John thanks for the Reply and info. Was definitely thinking which would suit me better, the 1.32 or 1.50 A/R. Didn't think about 2.00 A/R I'm up in the North East and we don't have many 1/8 Mile Tracks, just 1/4 Mile. I've seen some Exhaust Housing 1.00 and around 1.15 i believe. I know the Smaller A/R would help down low, and 1/8 Mile. Since i Only run 1/4 Mile, probably gonna need Atleast 1.32 - 1.50, Gonna look into 2.00 A/R like you said. Jose at Forced Inductions Name has come up alot, lot's of people highly recommend him for Turbo options, I'm definitely gonna contact him about my Turbo recommendations. I know you said with a Large Single rpm can be an issue. I'm turning 7000-7100 rpm right now with my N/A 521 BBF Combo. Thanks Again for the info. I really like Garrett Turbos, would love a GTX5533R if i go with a 98mm or a GTX5544R which comes 102 or 106mm. Would love one of them with there Ball Bearing Design, they get a little pricey for my Budget tho. But will definitely get in touch with Jose. Actually running a Modified Garrett on my 6.0 Powerstroke Truck (Tow Vehicle and Toy) from KC Turbos, and i Love it. Greatly Appreciate all the Advice you helping me out with. One question for you, what was the reason why you went with LS Power in your Mustang ? Are you Chevy guy ? I was Born and Raised in a FORD Family, pretty sure i was conceived in a 1965 Mustang Fast Back. Had my 1986 Mustang since 1994, had original 5.0 when i bought it, then built a 1969 351 Windsor, then a 1972 351 Cleveland, now a Stroked 460. Just wondering why No FORD in yours ? Thanks again Buddy.
@livetorace163
@livetorace163 4 года назад
Good info. I had thought about doing this at one time but with the Terminator X so cheap now it'd be hard to do it cheaper and have the adjustability and room to grow. Dual needle valve carbs are expensive.
@davelowets
@davelowets 2 года назад
I just picked up a Terminator X Stealth 4500. I haven't installed it yet, but I have played around with the software, and it looks like it has a shit ton of tuning options and is pretty advanced.
@charliestewart9320
@charliestewart9320 2 года назад
@@davelowets g/
@slopoke22
@slopoke22 4 года назад
I haven't heard turbomustangs in forever. I've been a member since like 2002 or something. I remember when blownshovel was doin those how-tos of this way back. I always remember Brent's mustang. What was your name on there. Pitot tubes
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Turbotbirds, was a great forum
@dondagy9109
@dondagy9109 3 года назад
Thank you sir!
@ldtenenoff
@ldtenenoff 4 года назад
morning T.J. ur vids r always cool class is in session boys an girls,dont forget an apple fer the profesor
@TurboJohnRacing
@TurboJohnRacing 4 года назад
lol
@juiced71
@juiced71 4 года назад
Mine is the hanger18 mod And was basically a copy cat of my buddy’s and it’s a single needle seat on gas and works pretty decent 👍🏻
@1fast72nova
@1fast72nova 4 года назад
Hanger 18 works and it's easy
@juiced71
@juiced71 4 года назад
Nisan Catron yes sir my buddy’s car runs very well 👍🏻👍🏻
@ChopsMahone
@ChopsMahone 4 года назад
Thanks man
@jabooty4223
@jabooty4223 4 года назад
Did you fill the emulsion circuits on both primary and secondary blocks or just primary? Thanks for all the info 👍
@bradpittman5075
@bradpittman5075 4 года назад
Pito tubes. For like measure pressure drop to measure indicated air speed? That’s a smart thought.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Yes, that is where they first got the theory of the vent tube extensions. They work great.
@backyardbuilttrucks1
@backyardbuilttrucks1 3 года назад
On lower boost 8lbs I have a quick fuel blow thru. ( Birthday gift from kids ) Will a regular style high flow power valve work , came with a 4.5 in front and rear blocked I have a set so from 2.5 to 8.5 .
@J45yu456
@J45yu456 Год назад
Thank you sir
@AndyGeesGarage
@AndyGeesGarage 3 года назад
Great info. I’m currently collecting pieces to do a single turbo 355 and am trying to decide which way to go blow through or efi with budget being the main concern
@TurboJohnRacing
@TurboJohnRacing 3 года назад
Make sure to add prices up thoroughly. Holley EFI with coil near plug is not a ton more than blow through now once you price (carb, wideband, data logger, ignition).
@AndyGeesGarage
@AndyGeesGarage 3 года назад
@@TurboJohnRacing yes that’s what I’m seeing and as I want to use the car for drive and race style events and some local track nights the ability to download a “tune” from a lap top is starting to be more appealing. It is the little stuff that adds up.
@Obshowersyndicate
@Obshowersyndicate 4 года назад
Dam john really knows about blowing
@TurboJohnRacing
@TurboJohnRacing 4 года назад
lol
@charleybetts1053
@charleybetts1053 4 года назад
*Hahahaha*
@leroyt2590
@leroyt2590 4 года назад
Awesome videos TJ! how fast did you go with your blow through carb before you switch to efi? What carb size did you use?
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Went 4.90's and it was a 750 body with annular boosters installed
@glenngamboa9224
@glenngamboa9224 Год назад
CSU carb is what I got 👍👍
@davelowets
@davelowets 2 года назад
6:50 Instead of messing around drilling, tapping, soldering, drilling, resoldering, redrilling, making air bleeds and jets out of brass set-screws, and all that jazz, it's just WAY easier to go out and buy yourself a pair of fully adjustable Billet metering blocks. They aren't that expensive today, and they save a WHOLE lot of frustration, and screwing around, versus trying to modify old ones with no provisions for adjustability.
@prestonedmonds4128
@prestonedmonds4128 4 года назад
I used to get on that site a lot.
@young11984
@young11984 4 года назад
Running a Quick Fuel blow thru on my junk with a best of 6.28@121 with 15psi and 150 shot, hoping with adding EFI it will be more reliable and can keep the stock long block together for a few more years
@TurboJohnRacing
@TurboJohnRacing 4 года назад
EFI will help keep more control fuel for sure
@divine4225
@divine4225 3 года назад
Hey where would I hook up my boost gauge line on a carbureted engine? Any help would be great!
@zx6rkawi09
@zx6rkawi09 4 года назад
You put this video out at the right time! But your right with fi tech , Holley, setups costing a tad more efi is the way to go unless you build your own carb. I’m fighting should I turbo my 383 sbc and get a fi tech, Holley sniper and learn to tune while I build my big hp ls3 Holley efi setup like you got. Or should I do blow thru on my 383sbc and enjoy my car while I build my ls3 and learn just the turbo side of doing things! Want to into the turbo game but not sure how I should start. The 383 is a a good running setup as is , it’s stupid fast for the parts in it!
@TurboJohnRacing
@TurboJohnRacing 4 года назад
those types of decisions are hard to make, all probably have some advantages and disadvantages. I always hate making a big decision like that, cause they are all significantly different. If the ultimate goal is to do the ls3 with holley, I would jump right in most likely though.
@zx6rkawi09
@zx6rkawi09 4 года назад
Turbo John true I will just enjoy the 383 na in the 69 Camaro this season and put all my money on the end game! Hope to see you at the track this season at piedmont drag way!
@bevinsracing
@bevinsracing 3 года назад
John what's your opinion on being able to do this conversion and make it e85 can you do it with the down leg boosters just up the Jets and drill the main Wheels
@RealGenX
@RealGenX 2 года назад
Instead of just drilling the Main well to a straight drill hole, use a #3 tapered ream from McMaster. It keeps the velocity up. Also if ur installing only a few boosters u can hold it in with just a screwdriver tapped in between the bore and the banjo
@davidcraft4909
@davidcraft4909 3 года назад
Great video, but Ima just buy a blow through carb if I ever get around to running a turbo. Might not be what you want to hear but yeah. I'm sure if someone was to spend enough time on this like you did it would probably be better to build one, but it seems like a whole lot of stuff to learn and to test and tune and really learn how to do it. Either way thanks for posting this because I gained something from this video. someday I may try to build one, I still have too much to learn about turbos and tyring to do do this would overwhelm me. hopefully the ones you can buy already done will work good.im sure they would do ok to good.
@letmeshowya6797
@letmeshowya6797 3 года назад
I'm similar, I can learn and build just about anything I want, for real. It's just choosing what I really want to spend my brain power and time and focus on learning and if I'm already in process of another brain powered hobby then something as either #1.) Awesome as fuck ! Or #B.) Half finished joke on the shelf over there important as a blow through carb to home made DIY I made that shit myself turbo sbc would overwhelm me too. This confusing comment is almost making my anxiety worse! .
@bevinsracing
@bevinsracing 3 года назад
Whats your opinion for a electric fuel pump and methanol fuel. I have a aeromotive a1000 pump and just picked up a c&s dual needle seat carb for methanol...do you have to run a mechanical pump at 20psi boost range
@MrDannysotelo
@MrDannysotelo 3 года назад
New to this, hopefully you get a chance for my questions: Is a boost referenced fuel pressure regulator mandatory? Trying to avoid return lines. Im running a stockish sbc350..shooting for 8-10psi. Thanks much
@TurboJohnRacing
@TurboJohnRacing 3 года назад
Yes, it is. The regulator has to be able to raise fuel pressure based on boost pressure.
@bevinsracing
@bevinsracing 4 года назад
I had a quick fuel bt then had c&s build one for my 400sbc 94mm picked up 4 tenths..still slow but i havent touched carb in 2 season mid 5sec 1/8.. Stock shortblock 400 pro topline 235s big roller 15psi..lol time 💣 with a diaper
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Nice
@jonsimerly9447
@jonsimerly9447 4 года назад
Wow time machine, pretty sure we talked 05-07 on TM/TF because I remember extended bowl vents becoming all the rage in a weekend. I also remember fighting them into my EV hat. Remember the Search function Nazis lol
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Yes, lol
@caseykuhn952
@caseykuhn952 4 года назад
Hey great video attempting to make a new carburetor but I want to use a small Turbo from a car for the push on the top run off the belt or run ou motor tomorrow cuz I see anything in that regard that could help thank you
@TurboJohnRacing
@TurboJohnRacing 4 года назад
It’s gonna be blower and turbo?
@caseykuhn952
@caseykuhn952 4 года назад
@@TurboJohnRacing found some other info om a pogue carburator. attempting to combine the turbo for the reclaim vaporizor.
@terryritterbush4239
@terryritterbush4239 8 месяцев назад
Hey man. Where did you put your boost gage? I’ve got mine Teed into the BOV line from a 1/8’ NPT hole in my carb spacer. I can’t get the AEM boost controller to read boost over 1 pound.
@nickolasedmunds
@nickolasedmunds 2 года назад
Also would It be better to run a carb that opens the secondarys and primarys at the same time? Or do mechanical secondarys work to? Pretty cool 😎
@TurboJohnRacing
@TurboJohnRacing 2 года назад
I don’t know, never tried that
@ldnwholesale8552
@ldnwholesale8552 2 года назад
EFI does not solve a lot of problems. Though I do not use boost. Proven though that a good set up carb will make more power than any electronic carb [throttle body] and also 8 nozzles in the intake. With a simple throttle body. Multi stack should be better though often no better, though generally more drivable. But that costs about carburettors! I agree with wide band though.
@blakedismuke3656
@blakedismuke3656 2 года назад
Is this good set up for stuff that won't just be wide up throttle? Like something for a mud truck?
@darrellkidd3676
@darrellkidd3676 Год назад
the emulsion circuit do you epoxy the hole below that run too?
@claytonwhitehawk2252
@claytonwhitehawk2252 2 года назад
Hey would a blowthru turbo carb work on a nitrous motor? If I was to take the blowthru set up from my turbo car and put it onto my nitrous would it work ?
@thisislargemouth5566
@thisislargemouth5566 2 года назад
What do you recommend to adjust boost timing?
@SubePelayo928
@SubePelayo928 3 года назад
How about I mail you my carb and necessary funds to covert it to a blow through. You can record a video of the process!
@letmeshowya6797
@letmeshowya6797 3 года назад
If that works out and you get a blow through carb back,,.. then I'm next.
@bradpittman5075
@bradpittman5075 4 года назад
Thanks TJ. they keep playing ridiculous mike Bloomberg commercials all the time on your channel. Ain’t nobody got any time for that commie mike. Keep up the great work on your channel. It’s awesome. 👌👍🇺🇸
@martyjohnsonozarkoutdoors8198
@martyjohnsonozarkoutdoors8198 4 года назад
Yeah that piece of Crap liberal snake, hi-jacked your video.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
LOL, it is amazing how the ads are tailored to each individual person. It actually is kind of scary, that me and you can watch the same vid, and get customized individual commercials based on what google has tracked us watching!
@martyjohnsonozarkoutdoors8198
@martyjohnsonozarkoutdoors8198 4 года назад
@@TurboJohnRacing Well I have no idea why they would think I'd want to see anything about bloomberg. But keep up the awesome vids. And thanks for the info on the blow-thru carb. I might try to do one this summer.
@jdmonly87
@jdmonly87 4 года назад
I got it too. I've been getting it quite often though.
@cartailincautodetailing946
@cartailincautodetailing946 3 года назад
Can this be done with a quadrajet carb???
@woodgrain18
@woodgrain18 4 года назад
Man you need to talk to my uncle he has a csu blow thru on a methanol procharged setup and we have had like 5 good outings with out of 20 lol
@TurboJohnRacing
@TurboJohnRacing 4 года назад
They can be tough, but keep pushing.
@briangriffin7906
@briangriffin7906 Год назад
God bless each and everyone of you have a wonderful day. Idk anyone of you buy I’ll be praying for you all
@briangriffin7906
@briangriffin7906 Год назад
But not buy
@mattlarimore8464
@mattlarimore8464 4 года назад
I was wondering if I could build a 850 cfm blow through carb to run on methanol, would that be too big? I know you said 650 or 750 will work but do you know if a 850 would work better or worse? Thanks
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Maybe, but the bigger the cfm the more fuel it requires. Large Venturi require a better booster to pull more fuel
@199rocks94
@199rocks94 Год назад
Did you ever have a problem with syphoning the when you blocked the air bleeds?
@mikegonzalez4469
@mikegonzalez4469 4 года назад
My question for you TJ , are down leg boosters better than annular discharge boosters ? You the man !!! I kinda wanted to boost my Dads Chevelle with a carb . Also could you give me a basic formula on what size blow through CFM carb to use on a mild 377 cid SBC with Brodix 11x heads with super victor ??? Thank bro , keep bringing it brother and I appreciate you 👍👍🙏
@TurboJohnRacing
@TurboJohnRacing 4 года назад
For a blow through set up, the annular boosters are far better than downleg or straight legs. Now C and S has what they call a aerosol, and it is really good. Basically that one the entire venturi is a booster. 650 or 750 will be ok for that size engine. 650 and a 750 with the same size booster, the 650 will pull more fuel. Good luck.
@darrellkidd3676
@darrellkidd3676 Год назад
so the jet extensions are only on rear jets?
@cartailincautodetailing946
@cartailincautodetailing946 3 года назад
Can this be done with a Quadrajet carb
@mopedman666
@mopedman666 3 года назад
Can you convert an edlebrock to blow through as well or does it work best with holley’s design?
@TurboJohnRacing
@TurboJohnRacing 3 года назад
I’ve never done an edlebrock
@trondvidardalseng894
@trondvidardalseng894 Год назад
Sorry if this sounds like a dump question. But if you have a boost refence fuel pressure regulator, is it necessary to rebuild the carb to be a blown throug carb?
@TurboJohnRacing
@TurboJohnRacing Год назад
The carb needs the solid floats and the ability to give it more fuel.
@jcnpresser
@jcnpresser 4 года назад
What about fuel pressure? I assume it would have to raise with boost pressure wouldn’t it? Trying to learn all this stuff is a little overwhelming lol.
@rdub79lx
@rdub79lx 4 года назад
You use a boost reference FPR that will raise pressure at a 1:1 ratio. Aeromotive A2000 is what I use.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Yes, must have a rising rate fuel pressure regulator. Do not hook the boost reference line below the carb, always above the carb in the bonnet or off the turbo.
@axlegrind4212
@axlegrind4212 4 года назад
i was always taught the fuel flows through the main jets by gravity. the level of fuel in the emulsifier tube is always lower than the level in the fuel bowl. flow through the venturi booster causes negative air pressure in the emulsifier tube but imo it is not enough to pull fuel through the main jets.
@TurboJohnRacing
@TurboJohnRacing 4 года назад
You could be right. The fuel level in the bowl determines the level of fuel in the emulsion cavity like you said. I would think it would be the same height. Just like when the fuel is too high in the bowl it will flow out the booster and vent tube possibly. Wonder how much the Venturi actually sucks? If the fuel level was really low in the bowl hypothetically, just above the jet. Would it still pull fuel through the booster!
@axlegrind4212
@axlegrind4212 4 года назад
@@TurboJohnRacing the reason i say the fuel is lower in the emulsifier tube is because that's where the raw fuel starts to become aerated into a vapor. there is likely some suction from the v-booster on the main jet but since it is a restriction it's very little, imo. the vacuum in the e-tube is going to assist the gravity flow, tho.
@budgetwheeler4x4
@budgetwheeler4x4 4 месяца назад
What if I mailed you my alcohol carburetor and have you set it up for me sbc Twin turbo on Alcohol.??
@rainingbrass
@rainingbrass 4 года назад
👍
@Manuqtix.Manuqtix
@Manuqtix.Manuqtix 2 года назад
What if you have SU carburettors or DCOEs?
@e-racer4673
@e-racer4673 4 года назад
You did not mention the power valve block off’s, do you run those or no?
@TurboJohnRacing
@TurboJohnRacing 4 года назад
On my blow through, I had a front pv and a block off in the rear. A lot of companies now do dual boost referenced power valves
@connorclark574
@connorclark574 3 года назад
I'm not sure if this was gone over, sorry if it was and I missed it but do you size the carb to the engine then just build a blow through or can you run a lower cfm carb if your building a blow through?
@TurboJohnRacing
@TurboJohnRacing 3 года назад
Usually, the smaller the cfm the larger the booster is in relation to the venturi. The more air that goes through the booster, generally the more pull it has on the fuel. I always had best luck with 650/750 cfm carbs with annular boosters installed.
@connorclark574
@connorclark574 3 года назад
@@TurboJohnRacing oh okay right on!! Thank for the knowledge!
@dev894
@dev894 4 года назад
Would a 670CFM carb be enough for a low boost setup on 302?
@TurboJohnRacing
@TurboJohnRacing 4 года назад
Probably, I ran 650’s with food success
@allenhunt9016
@allenhunt9016 2 года назад
Mr john where in n.c. are you located
@johncooper9976
@johncooper9976 2 года назад
Hi, John, this is John. Lol. I have a GM inline 6 one want to do a blow through carb and turbo. It's going to have 275-300 hp. 600cfm Holley. Should I do a blow through or should I do a draw throw? It probably weather I want the turbo before or after carb.
@TurboJohnRacing
@TurboJohnRacing 2 года назад
I have never done draw through. But they seem to work. A lot of factory cars had it.
@stevenminix
@stevenminix 4 года назад
Seen a folded flag and what seemed to look like SFC or Msgt rank on the wall in a shadow box behind u turbo john... whats up with that? Retired Army vet here
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