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Join us as we build, fabricate, and maintain some of our favorite projects.

Some of the projects to follow:
-1988 Toyota Supra (7M)
-2002 Subaru Wrx
-2018 Audi RS7 (V8 twun turbo)
-hopefully more to come

I will continue to help put my fellow supra owners by posting updates and making the car just thay much better. Hopefully we can reach out to some of you Subaru owners as well. We have some big plans for future builds and excited to bring you guys along for the journey. Subscribe to our channel and get the most recent uploads.
How strong is the 7M supra 2 step?
10:35
21 день назад
7M custom forward facing intake manifold
19:24
4 месяца назад
Canam X3 RPM sport exhaust review and install
17:04
5 месяцев назад
Catch can setup on my 7M Supra
24:43
8 месяцев назад
UMC Slush motorsports festival.
3:08
11 месяцев назад
Turbocharging my 7M Mk3 Toyota Supra
18:36
11 месяцев назад
7M wiring harness break down
23:57
Год назад
My Mk3 Supra custom roll cage
13:27
Год назад
Wrapping my Mk3 Toyota Supra
20:41
Год назад
St Anthony sand dunes
1:58
2 года назад
Mk3 Supra Shine Auto over fenders
20:59
2 года назад
Mk3 supra 7M valve cover vent hose
10:04
2 года назад
Комментарии
@NARFALICIOUS
@NARFALICIOUS 3 дня назад
sick
@shnill
@shnill 4 дня назад
Who’s tuning it?
@mainstreambuilds
@mainstreambuilds 4 дня назад
@@shnill I've got a guy locally that tunes pretty much all the supras in the area.
@xenocide101101
@xenocide101101 4 дня назад
JR is the man. ​@@mainstreambuilds
@mainstreambuilds
@mainstreambuilds 4 дня назад
@@xenocide101101 hands down one of the best dudes out there!
@felixbattle4404
@felixbattle4404 7 дней назад
STL files soon?
@mainstreambuilds
@mainstreambuilds 7 дней назад
Yeah I've been meaning to post them. I will try and find all the ones I made and attach them.
@felixbattle4404
@felixbattle4404 7 дней назад
@@mainstreambuilds much appreciated!
@christophergarza3482
@christophergarza3482 10 дней назад
Great video, is the exhaust really loud?
@mainstreambuilds
@mainstreambuilds 7 дней назад
It's pretty dang loud. Sounds really good, but if you aren't using headsets, you might lose your hearing (joking). We mostly ride at the dunes so pretty much on the throttle the whole time. Good throaty sound and not raspy and annoying.
@ManuelVazquez-d1v
@ManuelVazquez-d1v 13 дней назад
Thanks man, it’s a good video 👍🏽🫡
@navin9315
@navin9315 14 дней назад
This video was fucking badass dude
@mainstreambuilds
@mainstreambuilds 14 дней назад
Thanks man! I plan on doing another one with all the updates. This video was one of my first ones and it wasn't my best haha.
@SamOHalloran
@SamOHalloran 20 дней назад
How's it holding up? Giving good thoughts to doing this to my MKIII-
@mainstreambuilds
@mainstreambuilds 20 дней назад
It still looks awesome. It's peeled up a little around the weird under curved portion on the spoiler but everything else looks great
@TheHighroller88
@TheHighroller88 20 дней назад
less timing more fuel you will have a nice flame show 😁
@mainstreambuilds
@mainstreambuilds 20 дней назад
Good to know! We will definitely be changing it up!
@SamFBM
@SamFBM 21 день назад
7m !!!! love it
@JSXECO
@JSXECO 21 день назад
Awesome build, love seeing people keeping the 7M!
@valantischristodoulou
@valantischristodoulou 22 дня назад
08:09 Hell yeah brother !
@JoshuaPlaysMusic
@JoshuaPlaysMusic 22 дня назад
Car is beautiful! Tell your buddy I said, Go Dawgs!
@mainstreambuilds
@mainstreambuilds 22 дня назад
Thanks man! Haha will do!
@JoshuaPlaysMusic
@JoshuaPlaysMusic 22 дня назад
@@mainstreambuilds love the content. Keep making it. Are you guys in the PNW?
@mainstreambuilds
@mainstreambuilds 22 дня назад
@@JoshuaPlaysMusic We are in Utah. My buddy and his family are from Washington.
@mainstreambuilds
@mainstreambuilds 22 дня назад
@@JoshuaPlaysMusic thanks for following us! We want to keep cranking out as much content as we can!
@JoshuaPlaysMusic
@JoshuaPlaysMusic 22 дня назад
@@mainstreambuilds dope! I live in Tacoma, and drive a '73 Nova. Keep the content coming!
@scorpjmateo8766
@scorpjmateo8766 22 дня назад
Absolutely insane build and great sound! Best sounding 7MGE I have ever heard. Great work man keep it up, can’t wait for more content!
@mainstreambuilds
@mainstreambuilds 22 дня назад
Thank you! Definitely more to come!
@mainstreambuilds
@mainstreambuilds 22 дня назад
Thanks for the donation too man!
@lucioucz
@lucioucz 27 дней назад
i have a 7m-ge toyota cressida with arp headstuds and brand new head gasket but i keep hearing theyre too expensive to be worth it over a jz and im considering a swap.
@mainstreambuilds
@mainstreambuilds 27 дней назад
I definitely contemplated doing the swap myself but I wanted to try and keep it "original". I definitely want to turn mine up more. Keep me posted on what you do!
@lucioucz
@lucioucz 26 дней назад
@@mainstreambuilds for sure will, i have another project though. for yours, has it been reliable? are parts cheap?
@mainstreambuilds
@mainstreambuilds 26 дней назад
@lucioucz oh I super content with my 7M. It holds great power and I haven't had to throw a ton of money at it. I got the block and head machined a few years ago and haven't had any issues. The forged internals didn't cost an arm and a leg either. In my opinion it's a great motor to learn on.
@ramyworldwidechannel
@ramyworldwidechannel 27 дней назад
What intake manifold is that ?
@mainstreambuilds
@mainstreambuilds 22 дня назад
This is a custom intake. 2jzgte plenum welded to the 7m runners.
@richardrojas5578
@richardrojas5578 28 дней назад
Hey I was hoping you’d post the templates for the +89 3 piece wing for the mk3 I’d really appreciate it if you made them
@mainstreambuilds
@mainstreambuilds 28 дней назад
Yeah I'm still trying to find the best way to do it. I want to make it a e-file so you guys can just print it out. Still in the works and we will get it figured out soon!
@manutechsolutions6247
@manutechsolutions6247 29 дней назад
Your catch can video was catch and bait. Nothing 😞 just talk. Very disappointing
@mainstreambuilds
@mainstreambuilds 29 дней назад
Totally get it man! It's hard doing videos on stuff I've already done to the car. I want to do a lot more just not sure what viewers are after.
@manutechsolutions6247
@manutechsolutions6247 29 дней назад
Fu*# dude, I try and try and look forward to your videos, but every time it's way too much commentary and not enough work being shown. The videos are 80/20. 80 percent talk, 20 or 15% work. I hope your getting some kick back for sponsorship
@mainstreambuilds
@mainstreambuilds 29 дней назад
Totally understand man! I really don't want my videos to turn people away. What would you like to see more of??
@manutechsolutions6247
@manutechsolutions6247 29 дней назад
@@mainstreambuilds more work, less talk. If you're in it for views and really want your channel to be successful, buy some gaskets and do it over. Should be pretty easy since you already done it before and figured out the problems that viewers will come across with 7M's. Otherwise there's plenty of channels on RU-vid that are actually getting down and not just throwing shots out to companies. I like you because you're a real 7mgte enthusiast regardless if you started with a N/A, but I will tell you that when start talking, and keep talking and there's nothing but small work to follow, people will bounce to other channels that's really getting down. At least show your viewers that you have rip that thing. Send it one time. Damn. Something to keep your viewers excited for the next videos and inspiration. Hello
@mainstreambuilds
@mainstreambuilds 29 дней назад
@manutechsolutions6247 thanks for the feedback.
@scorpjmateo8766
@scorpjmateo8766 29 дней назад
Looking forward to a new full in depth 7MGE video! You convinced me to keep mine 7M, you do great work!
@mainstreambuilds
@mainstreambuilds 29 дней назад
Thank you so much! I will definitely do an updated video! Just added it to my list.
@brandontucker6069
@brandontucker6069 29 дней назад
glad to see you still making content brother
@mainstreambuilds
@mainstreambuilds 29 дней назад
Haha yeah. Life just gets busy sometimes! Hopefully more to come very soon.
@thelifeoffastony1157
@thelifeoffastony1157 Месяц назад
Bov is for high boost cars etc. noneed for stock turbo with low boost. 😂
@lafollettegarage4019
@lafollettegarage4019 Месяц назад
Mine is also a 7mge. I have been looking for a 2JZ but I recently picked up Another 7m but with targa roof. Been debating just fully doing what you did with your set up. Sweet build man!
@mainstreambuilds
@mainstreambuilds Месяц назад
Oh nice! You should totally do it! I've been really happy with my setup!
@thelifeoffastony1157
@thelifeoffastony1157 Месяц назад
Replacing the muffler and not the cat is useless.. the cat is more important than the muffler... Doesn't make any sense. 😂 Plus there's more important and reliable parts that could've been installed before the muffler. Example. Radius rods, catch can and better springs. Im sure the lower A Arms hasn't been replaced yet.( The weakest link). And The bump steer delete...
@mainstreambuilds
@mainstreambuilds Месяц назад
Haha thanks for the feedback! If you watched my other video you would see I did the cat delete pipe with an electronic cut out. I would agree there are better upgrades that could be done first, but I chose to do an exhaust 🤷‍♂️.
@lindseyhoopes2668
@lindseyhoopes2668 2 месяца назад
Thanks!
@MrScottyboyfonoi
@MrScottyboyfonoi 2 месяца назад
Thanks!
@andrefigueroa9297
@andrefigueroa9297 2 месяца назад
I’m not sure if I missed but you mentioned oil squirters on the 7mgte, did you add oil squirters to your ge?? & how much did this build run you? Just got my hands on an 86 Supra and trying to map things out
@mainstreambuilds
@mainstreambuilds 2 месяца назад
Since I ended up going with forged internals, it wasn't necessary to add oil squirters. I was actually talking to a guy the other day about overall costs. I saved a bunch of money by doing all the fab stuff myself, but I'd say overall, I'm probably 8-10k.
@rileypinard2348
@rileypinard2348 2 месяца назад
im curious if belt length matters when relocating the alternator? and also without intercooler piping running to the other side how does it route to the passenger side of intercooler
@mainstreambuilds
@mainstreambuilds 2 месяца назад
Yeah belt length does matter in this case. The 7m has 3 different belts with the factory setup. When moving the alternator down below it actually brings it closer to the crank pulley which requires a shorter length belt. The intercooler pipe runs from the intake down through the battery tray to the intercooler. From the intercooler it runs up along the power steering pump and to the turbo.
@rileypinard2348
@rileypinard2348 2 месяца назад
@@mainstreambuilds awesome good to know thanks man, so you must have gotten rid of the maf and filter, i think im gonna order front facing soon
@mainstreambuilds
@mainstreambuilds 2 месяца назад
@@rileypinard2348 I was able to toss the maf when I switched over to a full standalone ecu and ran the new turbo. The forward facing intake looks so good and makes it easier to route the intercooler pipe for the turbo
@lesliekish3229
@lesliekish3229 2 месяца назад
Hello, I really enjoy your your videos. I was wondering if you're using the stock na ecu with your turbo, and stock fue injectors ? Thanks
@mainstreambuilds
@mainstreambuilds 2 месяца назад
Thank you for the support and watching the videos! Yeah I was running the stock NA ecu with 550cc injectors. The stock ecu didn't love anything higher than those.
@docsavage9901
@docsavage9901 2 месяца назад
I’m running the same RPM BOV, I’ve also got the extension hose to vent it inside the air box (not installed yet) so it’s not open to dust/dirt. I’ve ran other BOVs, I’ve always wondered how to adjust the adjustable BOVs. I think the one I put on my brothers x3 is adjustable. Any input on adjusting one? I also would recommend using a removable boost pressure gauge after removing the boost hoses, I’ve found leaks more then once where I thought the hose clamps/connections where tight but needed just a little more attention loosing valuable boost pressure. I bought the gauge from KWI clutch, I was trying to diagnose a power loss, sure enough a boost hose was leaking.
@ethanmeeks5802
@ethanmeeks5802 2 месяца назад
So I’m planning on getting one myself and it most likely will be the 86.5 and I plan to turbo it. Would yall recommend me do that without changing much of the internals?
@mainstreambuilds
@mainstreambuilds 2 месяца назад
It just depends on how much power you are trying to achieve. If it's just the stock PSI or a few PSI above that it should be fine. The forward facing manifold has decent low end torque, better throttle response, better intercooler pipe routing.....and just looks way better.
@the_samruai_in_black_
@the_samruai_in_black_ 3 месяца назад
got me a mk 3 91 , think ill be following this channel for further info ,mine is very similar to yours, even got the same color bro
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Sweet! Glad you stumbled across my channel! Keep me posted on your build and if you have any questions feel free to message me!
@gilbertvanegas6948
@gilbertvanegas6948 3 месяца назад
Poor Supra. Not that he’s doing a terrible job but I hope ppl realize that these are rare cars, the more ppl do these “mods” good luck finding one OEM. This was a perfectly nice Supra and to do this for what? To make yourself look different? It’s sad really and tbh these mods probably won’t last and this car will probably end up in the junk yard.
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Wow thanks for the support man! Sorry MY car upsets you so bad. If you actually watched the video I talk about how the car had been hit and it was beyond my knowledge and repair skills. To answer your question, yes I want to be different and make the car how I like it and will enjoy it. My plan is to fit a larger tire which wouldn't fit with stock fenders. To say my car will end up in a junk yard because these so call "mods" will get it there quicker is a pretty far reach. I'd love to see pics of your supra. With your expectations it sounds like it's in absolute perfect condition. 👌
@arybrand831
@arybrand831 3 месяца назад
Does it seal against water retention
@mainstreambuilds
@mainstreambuilds 3 месяца назад
That's a great question. It looks like a pretty good seal but I don't think it would be water tight. I can feel exhaust pass around butterfly valve when it's closed.
@arybrand831
@arybrand831 3 месяца назад
I'm really digging the set up but I do alot of everything creeks,rivers etc almost ready to pull trigger but my master mechanic had that concern.
@arturo1129
@arturo1129 3 месяца назад
I like the sound of it, do you know if I would have any problems with inspection since I have mine street legal, thank you 👍🏻
@mainstreambuilds
@mainstreambuilds 3 месяца назад
@arturo1129 I'm not sure actually. Our state doesn't require emissions for side by sides. I'd think as long as the valve is closed and pushing everything through the main exhaust you should be good.
@Alexlive.evilxela
@Alexlive.evilxela 3 месяца назад
Can you show the rear brakes and how to replace everything
@mainstreambuilds
@mainstreambuilds 3 месяца назад
I haven't upgraded the rear brakes. They are just the factory calipers with upgraded hawk pads.
@robertwojciechowski1780
@robertwojciechowski1780 3 месяца назад
I just installed the kit on My X3 Turbo rr max. On the ride i noticed the bov would open and remain open at around 5300 rpm. I also noticed as I was driving down the road and every time I hit a bump and my foot bounced on a gas pedal a little the BOV would also dump. Do I need to put the next Stronger spring? Or are you sensing something else? Any help is greatly appreciated
@mainstreambuilds
@mainstreambuilds 3 месяца назад
That's interesting. I did disassembled my bov and cleaned a bunch of grease off the plunger. It was acting like glue and would hold the plunger open. I would also try swapping the springs out. Typically the plunger and diaphragm are held closed under boost pressure. The positive boost pressure will push on the back side of the diaphragm and will hold it shut. Since yours is staying open at 5300 rpm I'm willing to bet it's opening and then getting stuck and remaining open.
@BeamA70
@BeamA70 3 месяца назад
So are those Ignition coils? what intake manifold is that? thx
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Yep 1zz-fe coils. The intake manifold is all custom made in the garage. Turned out so good!
@tommyburgess2237
@tommyburgess2237 3 месяца назад
Something your NEEEEEVER gona hear out of an oversized RC (electric) car...lol thats for sure...can't wait to drive mine again either...just built the head on my 2j...have fun..enjoy...n be careful my man...lots of jealous assholes out there that don't care or have NO idea what it takes to have a car like this...especially a nice one...smh 🤙🤙🤙
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Couldn't have said it better myself!!!
@JSXECO
@JSXECO 3 месяца назад
Beautiful build, maybe I missed it but the hose that goes from the valve cover to the block what did you do for that? On intake side see you blocked it off by the oil cap.
@mainstreambuilds
@mainstreambuilds 3 месяца назад
I actually learned it's not ideal to just block that off. I did another video where I use a -10AN push lock fitting and run the hose down to the block.
@JSXECO
@JSXECO 3 месяца назад
@@mainstreambuilds thanks for the update, I ended up going 1JZ vvti and truly regret selling my 7MGTE instead of building it but have buddy’s out here in Texas that still run the 7M.. I’ll check out that other video!
@mainstreambuilds
@mainstreambuilds 3 месяца назад
@JSXECO I thought about going that route as well. I'm glad I built my 7M. Great learning experience and have had a ton of fun in the process. I actually just dropped the car off to the tuner tonight so I will be doing an update video very soon!
@keepinitspool8411
@keepinitspool8411 3 месяца назад
Sure do miss mine, bought a rolling shell a couple years ago then had to sell it when my home ac caught on fire I'll get another 😊
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Oh man! Sorry to hear that. Hopefully you can pick another one up very soon!
@keepinitspool8411
@keepinitspool8411 3 месяца назад
I'm almost done completely rebuilding my xj and I'll be selling that to buy a 1gz-fe to put in my q50 that has a blown motor then I'll eventually sell that to buy and build a new supra 😄
@LightHills
@LightHills 3 месяца назад
That's a nice setup my friend. Dyno yet or was this 1st start up day?
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Thank you! No dyno yet. Sending the car off to get street tuned hopefully this weekend!
@prod2k3
@prod2k3 3 месяца назад
What are you running for ign timing?
@mainstreambuilds
@mainstreambuilds 3 месяца назад
Im running cam and crank hall sensors with a trigger wheel.
@prod2k3
@prod2k3 3 месяца назад
@@mainstreambuilds That’s awesome, definitely using your build as inspiration for mine, thank you !
@mainstreambuilds
@mainstreambuilds 3 месяца назад
@prod2k3 thanks dude! If you have any questions hit me up!
@ImReelySuqi
@ImReelySuqi 3 месяца назад
​@@mainstreambuildsthe hall effect trigger wheel just send a signal to the ecu for the ecu to fire the coils? I'm interested in going coil on plug and just wanted to know if that's at all how it worked
@mainstreambuilds
@mainstreambuilds 3 месяца назад
@ImReelySuqi yep exactly. The crank and cam sensors work together to show position that will then tell the coils and injectors when to fire.
@jacksongolding5952
@jacksongolding5952 3 месяца назад
Thanks for the detailed BOV install. Sounds slick!
@mainstreambuilds
@mainstreambuilds 3 месяца назад
You bet! Thanks for checking out the channel!
@GW1SH1N
@GW1SH1N 4 месяца назад
0:22 Woah bro why you staring at me like that 🥶
@user-vd6sg7bt3f
@user-vd6sg7bt3f 4 месяца назад
I built one go to thatSupraGuy i have a 7mgte custom intake manifold from an oxygen bottle from a scrap yard
@mainstreambuilds
@mainstreambuilds 4 месяца назад
That's awesome! I will definitely check it out!
@joshd8894
@joshd8894 4 месяца назад
Oh i definitely want to look more into this, can it be made with the gte runners?
@mainstreambuilds
@mainstreambuilds 4 месяца назад
Yes gte and ge runners are the same. I actually think my current runners are from a gte
@cz75fanatic
@cz75fanatic 4 месяца назад
So what "we need" as a 7m community is a good detailed electronics guide when it comes to modernizing the bay. I've looked all over for information should I go to a custom harness and a standalone like a haltec. There is no information as to what modules and the like can be removed and which sensors to update across the board. It is funny that when it comes to the FFIM side of things, there too is so little actual information post 2006.
@wilsonbarbosa4668
@wilsonbarbosa4668 4 месяца назад
Ms3 pro is a plug and play ecu using stock harness
@mainstreambuilds
@mainstreambuilds 4 месяца назад
I've had to slowly and carefully remove certain sensors and what not to clean up the bay. I'm running the ecumaster which allows you to adapt the factory harness to the standalone ecu. Hopefully this video sheds so light on doing a ffic. It's. Ot super difficult but can be daunting if there is little to no info.
@manutechsolutions6247
@manutechsolutions6247 4 месяца назад
I might want one. Let me know what your thoughts are on pricing
@mainstreambuilds
@mainstreambuilds 4 месяца назад
I will keep you posted!
@wilsonbarbosa4668
@wilsonbarbosa4668 4 месяца назад
Yesss!!! Thanks man !
@watchthisspacecarchannel6523
@watchthisspacecarchannel6523 4 месяца назад
hey man glad I found your channel , I'm going to be dropping a turbo in my sons "88 Supra which is also a 7MGE , just collecting bits and pieces atm but ill certainly be watching your vids and I'm about to fit a pressure regulator and a catch can to so thanks for sharing your experiences along the way
@mainstreambuilds
@mainstreambuilds 4 месяца назад
Hey thanks for checking out the channel! Please feel free to message me any time if you have any questions!
@watchthisspacecarchannel6523
@watchthisspacecarchannel6523 4 месяца назад
@@mainstreambuilds appreciate the offer to ask you questions , I don’t like bothering people to much but I’ll probably will have some questions soon