LS TURBO INTAKE MANIFOLD MYTH-DOES IT MATTER UNDER BOOST? 

Richard, you are doing God’s work. Bless you dyno Jesus. You truly are the engine Messiah.

"I'm not doing this for the money," I think that deserves a HUGE like button smash.

I wish the main stream media was as honest as you are Richard

These videos aren't even relevant to anything I've ever owned and I'm still fascinated every time. This guy is the man.

I applaud your integrity, I’m sick of the other automotive channels praising the ear pods ( you guys know which ones ) that the people who specialize in electronics will tell you that not only are those ear buds poor performers but in their lower price range other brands perform better .

So nice to see someone stick to their cause and not sell out. You are a modern day Robinhood Richard. Thank you for everything you do and telling it how it really is.

Richard's channel is the only subscription you even need on youtube

I was a magazine junky as a kid. So glad you started this channel. Appreciate all the variety of testing you do. Keep it coming. Thanks 👍

I can’t wait to see where this channel takes you in years time Rich. Thank you for being a stand up guy, and providing such detailed information.

Love your videos. Great educational experience and I love the debunk material. You always give enough information for us armatures to make a logical informed decision irregardless of the rpm range you want to run. For me it will almost always be an engine operating range under 5500-6000 rpm. Doesn’t mean I don’t appreciate the higher rpm stuff. Everyone’s operating conditions are correct for them. You’ve always been excellent in your presentations, always giving everyone the information they need in a clear concise manner that everyone understands. Thank you for always sharing your information with all.

Never heard of max speedy, but I like your openess to try new things and appreciate it. You could easily name your show Dyno Myth Busters. 😂👍😁

A lot of VW owners use maxspeedingrods connecting rods and short runner intake manifolds in their budget builds. A friend and I built an engine with their rods and they were a better balanced set than the factory stuff. I think it was something like .5 grams on the rods. The stock pistons had a lot more deviation between cylinders.

Love the test results! I bought the fast manifold because of this channel. I can tell you I wasn’t disappointed!!! Keep up the amazing work!

You always keep it real and that is exactly why I love watching your channel. Well of course the massive amounts of information from testing you put out too!

Richard your doing us big favors and you deserve way more sponsors dawg so take what you can baby and be about your word of what you told us,,, let's gooooo 💪🏾💪🏾💪🏾💪🏻💪🏻💪🏻

I would like to see a 6.0 ls tested with boost with low rpm torque and heavy duty towing in mind. A gasoline powered answer to the duramax. The mantanice is cheaper and no def fluid or emmison issues.

It is impressive how well a stock manifold does and unless you are chasing big power it will be the perfect for non extreme HP or high rev engines.

I’ve tuned nearly a dozen various LS builds running positive manifold pressure and the FAST manifolds with no cracking or boost leaks. The only PVC style manifold I have seen bleed off boost was a FRPP piece on a 3v mod motor and this was an 950+ flywheel HP bracket car running a lot of boost pressure.

A man with ethics..I like it...keep up the good work....

My theory is whatever gives you the best mid range to spool a bigger turbo will get you more efficiency then trying to run a smaller turbo so you can light it

Max speeding rods in my experience are ok rods, they will take some extra torque but they are china made. I found that the big ends we're not perfectly round and had some big clearance differences (not always). They do come with genuine arp hardware and are pretty well balanced.

Great job! Good on you in regards to the sponsorships. If a little earpod branding helps the channel I don’t seem to mind. But absolutely stand up job in regards to automotive parts and not being persuaded In that regard. Maxspeed is pretty big in the import world I believe. People in the Datsun community are beginning to use some of their parts. Rumours of some bad CQ, but overall I hear good things.

Yes MaxSpeeding makes interesting stuff. Honda guys are big into them, I bought a couple GT3582s from them and they seem to be great!

It’d be interesting to see the new BTR equalizer 1 intake manifold within the short runner manifold shoot out.

Richard yes the Fast manifold might produce the numbers... but what about the Edelbrock Cross Ram? That thing is the dogs bollocks (and it made pretty good numbers too).

I would like to see MaxSpeeding stuff tested. Some of it looks like offshore trash but their really good stuff looks like high end race stuff from ten years ago at half the price. Looks lots lots of there stuff is for other brands. Get a 2.0l VW EA and big bang...theyre pretty tough little engines Edit...if you do have a sponsorship with them try two hy35w on a 4.8l v two chinesium gt3582. Everyone always wants to know how holset fans work on a v8.

I have ordered alot of turbo stuff. On a budget. Most parts had 6k street miles with no failures.

You doing a great work, thanks for the great content 👍 It just crossed my mind, that the runners length is tuned based on neny factors, the speed off sound is one of those, speed of sound is effected by temperature. So if my theory is right, the power curve switch higher in the rpms if you don't run a intercooler, yeah its much lower because density but where it makes those peak numbers should in theory be just a thatch higher 🤔

+subscriber!! Been watching for a bit, but just the fact you want to test stuff and document what really happens makes me want to come along for the journey. Love the variety of content too, various gen small blocks, big blocks, poncho, olds and Buick, Honda, Blue oval ... Wanna see it all!!! 👍👍

Richard you are such an awesome dude. Thank you for doing all this research. I really appreciate all you do for us. Keep them combos coming. Continuing to build on my 5.3 lm7 hp97 from ATK performance. Truly inspiring content. Thank you

Rods aren't bad and machine up quite well. -+1 gram from the factory and the balancing pads a decent size. Occasionally need to resize big end. There turbo is what I ran that was so out of balance the wheel contacted housing and spade bits of blade through my intake.

Ive used Max speeding Rods before and some other parts over the years they seem to be pretty solid parts . I dont have any complaints and the price is pretty nice also .

Good morning Richard. Thank you for all of the awesome content. I have a 2003 Gmc with 4.8 and 4l60e I inherited from my father. 210k driven by an elderly man. never towed, never hauled anything, never over 4500 rpm... runs great. future swap into a very nice 2001 jeep Tj. I would like to build as much low rpm torque as possible. Any thoughts?

Picked up 26whp with a 102 tb and a 102 fast LSXR on a Heads cam 6.0. I’d say that’s worth the cost

thanks Richard. Integrity for the win. you are still the same honest and trustworthy guy since the Silver State days. The magazines you used to write for seem to be losing sight of the values and ethics held by people like you . at least we can still trust Mr. Brulé.

Was the LS6 intake genuine GM or was it the Dorman replacement? Just curious as my understanding is the Dorman is 10-15 HP up on the original part. Great test, superb info as always!

Of course the intake manifold matters . The the gn guys know about the last two cylinders at the rear going lean under boost. Kenne bell and a company from Utah I think made dog house and air diverting device to help cure this. Happens to ford 5.0 the reason downs ford made a bread box upper. Thanks Richard for all your hard work.

Being unbiased is so rare these days. I'm sick of what's left of the magazine industry, all they do now is "we install a xyz part and wow is it great" there is no more "we put 351w heads on a 302 to make more power(for example). Or doing one ton axle swaps from the junkyard, it's always "we went to abc diff company and installed their diff, wow it's great) That said Richard, I can't stress how valuable what you're doing is. It may seem nothing to you, but you should be compensated somehow. I have young guys come in my shop and I'll school them on intakes, cams, whatever and they are blown away that I freely give out info. I never thought of it any more than "passing on the torch to the younger crowd" but several have said they want to pay me to diagnose, etc. I'm retired and am not interested in running a business, I love engines and just want to pass it on. You are on a whole other level though. Perhaps running some companies stuff(and getting paid to tell the truth) will lead to more companies which would then be "to see how well our products work, see Richards video of them in action." All these claims of hp etc...but what does Richard say?? That's the bar to go by, not what any manufacture say So!

I’m glad the Fast doesn’t really start making more power than the TBSS until 5500rpm since I have a truck and a $1000 intake would benefit me anyway.

My opinion is, if cost is an issue, boost first and then deal with the other add-ons. Get the biggest bang for your buck...boost...turbocharge or nitrous. Supercharger would not fall into the biggest bang category. The manifold is one of the quickest things to upgrade and can easily done later while you enjoy the fruits of boost until then.

I just put a fast 92 on my ls swapped bmw’s 370, and it doesn’t disappoint

I'd love to see you test some Maxpeedingrods parts, they pop up all the time in online forums as a cheap option but the only parts I ever hear about are their coilovers.

I have a oil feed line turbo and a couple other things from them have not run them yet but going to in the future when I get around to doing my turbo kit!

MAXSPEEDING. NOT a specific product question but a "material" process they market is where my curiosity lies. I can't find any true definition of TITANIZING. now sure it sounds sexy as Pankle Ti rods , but what is it seriously? I do have a couple of their gt35s but haven't been spun them in anger yet. Using the pair at a pair on a mild budget Dart 347.

I bought MaxpeedingRods for my 4 cylinder turbo build, haven't installed them yet, but I'm curious how they'd do for you. I've heard mixed results online, but thought at the price point they could be really good value for a forged rod compared to the big guys at double the price. Keeping my fingers crossed that they don't break. Lol.

Oh man, Maxpeedingrods. I'd be very interested in products that work at those prices. 👍

from all the tests you have done with the fast lsx (all versions) manifolds, you can see the replaceable runners create sine wave problems. some extensive maf tuning would have to be done to smooth everything out but those waves would create daily driver drivability issues.

Max Speeding is near equivalent to DNA from what I've seen. I think Hoonigan and Mighty Car Mods have both used them on budget builds. They'd be a good fit for your channel.

Aaannnnnd that’s why we watch and listen to you ! Thank you Sir :)

We changed from a LS6 intake manifold to a short Runner Holley sniper and just ran our first 8 second at 165 miles an hour. Never been above 158 mile per hour previously. I think the short Runner works very well on high boost.

Now it would be nice if these componies would listen to you and us about how to make their products better. That would be a great compony. And lets keep the price down for everyone can use it.

I have a maxspeedingrods gt45 turbo on my cammed 6L. I've been boosted since June 2020, and no problems as of yet. Started on 5lbs, now @ 11. Shaft still has the same amount of play as it did the day it arrived at my doorstep. Only complaint is he forgot to include the gaskets, and then wanted to argue with me about it. The turbo itself though, can't be beat for the price. $158 shipped to my door.

I run a LS6 on my 430 lsx turbo set up and if I am worried about 20 hp I just turn the boost up s cupel of pounds I have a pretty big turbo and went 8s with 16 psi I can turn it up to 30 + psi ls6 for a turbo works excellent i paid 100 bucks for it and a 80mm after market Tb

Hello from Australia. Im looking at tweaking a trusty Jeep 4.0 and was looking at a custom modified stock intake, but with a larger plenum. Then I saw a reference to some giant plenum. Is there a video of yours i can watch on plenum volumes? I honestly believe the factory setup is super restricted as its a carb style thats been tweaked for injection and needs a bigger cross section to encourage even flows to all cylinders. Hit me back

As far as maxpeeding is concerned. they're almost 100% made in the same factory as 'Spool' and other off-shore forgings. jsut with a different lazer etching. not a bad product from word on the street, especially when updating mid 90's Japanese engines on a modest budget vs. forged in USA/Europe/Aus parts.

Hey Richard, just like the Joe Rogan Experience podcast, your channel works because of how and what you do, don't ever change and I'll keep watching and ringing that bell my brother.

Have used maxxedspeeding rods products with good results. Mostly fittings or cosmetics though. Most "important" product I've used was their throttle body. Typical 4 bolt dbc china throttle body but didn't have the issues as others have like loose screws. Would be interested if their turbos and stuff compare with vs racing.

A short runner intake can work if the boost ramp can be controlled some kind of way. For example, a variable geometry turbine hot side can boost torque under the curve to fill in the torque loss or use an electronic boost controller to ramp in the boost sooner. Why not do a test showing the effect of variable geometry turbos versus fixed, and electronic boost controllers vs. mechanical?

You have the right plan for testing a new sponsor's equipment out on the dyno.Just make sure you get paid before you run it on the dyno.

Fabricated ram style intakes HEMORRAGE power down low and dont make gains til 7200rpm even turboed. Ive see a china sheet metal intake, and a Holley high ram both drop 70hp and 50tq on a 5.7 down low and took til 7300+rpm to beat the Fast 92

Heck yeah, test whatever they’ll send! I’d love to see some of the offshore products tested. A lot of that stuff looks good and the price is appealing, but the quality of unknown

Nope never heard of them. Also would like to see hi ram intakes vs low ram intakes on boosted and see what’s better. Looking to use a tunnel ram/ ram air intake on a bbc twin turbo

Id love to see u use their turbos they actually are under 200 bucks for a ft42 while cx racing or w.e that brand u used to used raised their prices to over 600 because of your videos

That's a lot of LS engines revving to 7000 rpm to make peak power. That may be OK for drag racing, but I'm a road course guy, and am pretty skeptical about long-term (100 track hours) durability when shifting above 6000 rpm. Do you have any examples you can cite of LS engines durability in road course applications? My 2002 LS1 Camaro ran like a champ through 15 years of road course use, accumulating ~180 hours on track. I was very consistent with a 5500 rpm shift point, although I did rev to fuel cutoff (6000) a couple of times to win $$$ in time trials. (What the heck, 50 bucks is 50 bucks.)

I'd like to see what designs you come up with if you had a 3d printer.... Why is the throttle body always mounted horizontal? I have yet to see one mounted on top (in line with the runners, like a carb)...I've learned allot, but the jello is still congealing...lol

I appreciate your honesty 😌

id love to see the BTR intake tested!!

You should compare the stock ported intakes theres alot of claims that they make less the same or more. Also maybe a compression test.

The runners split apart from 8psi on my FAST manifold. It was great for NA but not boost.

Related to MaxSpeedingRods, I have a set of their rods, and I have bought a couple exhaust flanges, turbo drains, and have seen a few sets of their suspension on Hondas, and typically their products seem to be typical of the current Ebay/Chinese based company that seems to be doing a lot of work off of production models they got second hand or modeled after, with alright quality control. Its nothing to write home about, but it is a company making parts available for reasonable prices for reasonably decent quality, but it is still a company that doesn't seem to be doing much developing, just selling copies of parts.

Hey rich, dig around them junkyards, find a 331 firepower, i wanna see what you can do with the baby hemi!

No LS motors need forged/ intake this or that ! The magazines are salesmen, I'm taking a 2005 LQ4 in my chevelle with gapping my rings and a nice 216/220 trick flow cam, LS9 head gasket, ARP head bolts, 2 S256 borg warner and dialing in 500 on low boost and turning it up a little for 600 hp ! All for about 4500 complete. I could do it for 1K less if it was a single set up !

I would be interested in seeing how the max speeding SBC roller lifters do at $135 a set

what about the 5.7L Cathedral ports (because Australia, hahaha) Also thought the Edelbrock X-Ram was pretty close to the Fast?

I would love to see more mfg's offer up parts for a torture test. pistons and rods for sure. cylinder heads would be cool too.

Maxspeedingrods, yeah right, try the gt35 turbo, its complete garbage, i have had two of them, the first i bought, the second i got as a replacement, both of them had a bearing issue. The rods however would be interesting on a setup, to see the limit of the rod. Should go 200hp/cyl as every other chinese rod goes.

How do you spell that company name? Is it perhaps "MAK SPEED" ?

Watching all of your videos from Bahamas. Great content!❤💯

I've looked at Maxspeeding rods... I have always been curious how good they are.

I do want to see how the holley duel plenum manifold compares to the stock LS3 manifold and the fast.

Man you already know we are always down for more options!

I absolutely love your channel!

Superflow would be a great channel sponsor. :-)

So on my 6.0 l77 i could runs the Fast manifold it would make more use of the tq. Curve and power band. From the stock manifold currently on the engine which i think its a ls2 manifold? Be safe ! You should run a 1.4 turbo cruze engine and blow the head off it. Because you showed us a 2.4 jdm and it went all the way 8,700 rpms. Thank you for your time .

Test the china maxspeedingrods. Im definitely interested in seeing how there quality is

0:49 The 5.7L never gets love.

Richard, when you start testing LS engines in your Nova what RPM will you generally set your shift points at? Mainly 5.3/6.0's.

Hi Richard 👌 Love your show but can we do another different type of engine like a ( VR6 VW R32 24 Valve) like you do with all the other motors please! Pretty please 🥺.

Let them send parts, and show what there claims are, verify the claims and find there limits. Just have them pick up the machine shop and junk yard tabs as well

Hey Richard....have you done any chassis dyno stuff?

Why don't you ever include 5.7 in the cathedral port engine sizes? Every time you only talk about 4.8 5.3 6.0

Hey Richard, on the ls6 manifold are you using the 78mm tb?

I saw a test with the msd intake it made a little more hp than the lsxr but is 3 times the price for a negligible difference

Richard, crazy question, but I've never seen it tested, can you actually gain horsepower by using high end oils (think amsoil, royal purple, redline) over, say, store brand synthetic, or (god forbid) conventional?

So question for you Richard and everyone else is it better economically wise for the money to go out and spend the money to buy a factory 6 liter or put a stroker kit in a 5.3?

When you say “overseas” where exactly are they located?

Iv got a good test for you, if possible please test a WET SUMP vs DRY SUMP on a AN & Boosted application.

I know, I know.... 'Overall Displacement = Power', but I would still like to see a 6.0L LS Shootout between a factory geometry 6.0L LS and a 6.0L 4" Stroked .20 over 4.8/5.3 block. WHY ? It's the average guy that already owns either a 4.8 or 5.3 that wants more power, so why toss the baby with the bathwater ? Regardless of platform, most guys will buy pistons & rods as a minimum, for peace of mind and the reliability for future added power. Not every 4.8L guy out there wants to solve their under-powered problems with forced induction or a junkyard 6.0L (to start with anyway). NOW, depending on your location, 6.0L longblocks are worth their weight in gold and 4.8's are literally being given away. From Summit's 'Pro' house brand (for instance) a $700 4" Stroker Crankshaft (along with your PURCHASED donor 4.8) is less money than what many people want for a 6.0L longblock. If you already own the 4.8/5.3 ? EVEN BETTER. Either way, machining costs etc will be the same, assuming an overbore. For a Street Car project by way of a Classic Car that weighs a ton, or even a large SUV, the drivability under 6500RPM SHOULD favor the long stroke 6.0L combo in comparison to the factory geometry 6.0L thanks to the stroke. Again, from what I have learned from watching your channel, the overall HP should be very similar, since the displacement will be similar. It's not like back in the 305 days with small bore. We now have good cylinder heads that support that small bore. Feel free to look into the math yourself. Whether you start out currently owning a 4.8/5.3 or need to pick one up from the boneyard for your project, the price of that motor + a 4" stroke crankshaft most times is cheaper than buying a 6.0L for the project. Either way you will buy rods and pistons and everything else will more or less cancel itself out in the end in terms of costs/labor. I simply want to see a realistic daily-driver-hotrod sub-6500RPM comparison and the benefits of achieving displacement using stroke to get to roughly 6.0L, rather than GM's big bore factory geometry offering. This is for those current 4.8/5.3 owners where most wish they had a 6.0L to solve all their problems. No expensive high RPM valvetrain, no over priced intake manifolds and less focus on that big HP number that doesn't help anyone 24/7 daily driving. Power and more importantly, Torque where people actually use it 99% of the time, still with the ability to spin big RPM if they so desire. Thanks for all the great content and sorry for the Novel sized post.

Correct me if I'm wrong, but isn't the tbss intake the Same that was used on the nbs Silverado. Like 2007 and up?

Max speedy or whatever must be pretty confident they're making decent stuff if they're willing to have it torture tested lol