TURBO vs EATON vs KENNE BELL vs VORTECH-4.6L 4V BOOST BATTLE! !

[@jedgarhughes3541]

Lots of time and effort put in to these tests and he is posting videos so often. Thanks Richard.

[@vaderwalks6790]

@@8SecSleeper And? Still a lot of work put into making these vids regardless of how long ago they were shot

[@colealbain9671]

U

[@nosnerd1967]

We should start by thanking the guy !!!you could only imagine the amount of work that went into this for us to watch a short vid

[@monsterram6617]

Work? All I saw was a bunch of fun!

[@Skubasteph]

it wasnt done for the video he us to write for magazines

[@1magnit]

The best engine channel on youtube.

[@nezabytes]

by far! I don't deserve this.

[@Bsim2020]

This vid is 4 years old, and is still probably one of the best comparisons out there. Thanks for the amount of work you put into these!

[@chadkent1241]

The tests were actually done 2005-06 ish in Muscle Mustangs and Fast Ford's mag.

[@johnallen7230]

OMG Richard that was a ton of work!! Much appreciated Sir!!!

[@brianfrost303]

Great test, so incredibly happy to see you test with something other than an LS this time. Much appreciated.

[@thetruth5232]

My VW Rabbit is twincharged. A roots-style blower that's driven by a second pully on the waterpump, coupled via a magnet clutch. The blower runs from 0-3500rpm while a second throttlebody opens at 2000rpm so that the turbo adds boost. Result is a 1.4L with 180hp at 6000rpm and max. torque of 180ft-lb spread over 1500-4500rpm. Certainly not a racecar, but makes for a great daily in a 2400lb car that gets 39 mpg.

[@richardholdener1727]

that is awesome-Lancia Delta Integrale S4

[@Alanp2232]

Hands down best channel on KZbin!

[@laborer4321]

Your channel is a great place for gearheads that arent fanboys. Great job!

[@derekhall6687]

Hey Richard. You need to write a book. How to Tune your F.I. Engine for Beginners . I bet you'll sell a ton. I would definitely buy a few. One for me and the others would be GIFTS.

[@NITROUSnBIASPLYS]

Oh yeah!! OG 5.0 Lets See It!!

[@tunerdadtunerdad7927]

Awesome testing Sir. I have a Procharged corvette and a Boosted Lsx fox. The linear boost of the Centri makes the car a dream to drive and get traction.

[@rothwilliams26]

Thank you man Ford guys everywhere appreciates you keep it up

[@rickwood248]

Yes please do the same test on a 5.3 or 6.0 LS ... I’d love to see the numbers👍

[@bennapier9260]

Considering the Eaton is thought of as bottom of the barrel. It was impressive. I was expecting the twin screw to match the Eaton's low end torque and pull away at the top. But it performed more like a centrifugal

[@midnight347]

Alot of the large twin screws are like that. A tvs makes more power and torque everywhere and is just as nasty on the hit as the tiny stock blower actually nastier because it has way more torque lol.

[@shotofwhimsy5721]

Yes!...to running this on an LS test.

[@rustysausage69]

Agreed, theres far better supercharger technology available for all LS than early MOD.

[@brianfrost303]

The best part of this test was the fact that it wasn't an LS for once.

[@kylesonsalla7620]

@@rustysausage69 What better technology? Pretty much all the centrifugal, PD, and turbo's are available for both families....

[@rustysausage69]

Kyle Sonsalla I should clarify, im going off the assumption that since theres more availability for superchargers, theres probably a better horsepower candidate.

[@kylesonsalla7620]

@@rustysausage69 It'll still look right about the same though... Using a TVS, a Whipple, a Procharger, and pick your flavor for turbos, it'll still end up like this test. Turbos walk away with it easily, all day long.

[@chrishernandez2490]

Extremely impressed with the performance of the 2001 cobra manifold 👍👍

[@ChurchAutoTest]

Terrific content once again. Clearly compressor efficiency and parasitic loss play a huge role in the differences between these setups (as well as correct sizing - a bigger Eaton probably would've helped top end - probably). But one thing I would love to see is a comparison of discharge and post intercooler intake temps. Particularly with the superchargers which are all using the same intercooler brick in this case. This would provide some nice insight into relative compressor efficiency. Oh, and next time you test turbos, how about doing several different sweep rates on the dyno to simulate different on road conditions? Anyone who's driven a turbo car knows that 5th gear boost response is a lot different than 1st gear due to the relationship between engine acceleration rate and time to boost for the turbo.

[@richardholdener1727]

Ill check to see if I got pre cooler temps

[@jeffschwartz5199]

I watched this one again . I like these videos 📹 👍Thanks Richard 😊

[@richardholdener1727]

Glad you enjoyed it

[@DodgyBrothersEngineering]

Thank you so much for putting this video together, I have been going over and over in my head which way an upcoming engine build needs to go. I still have a hankering to do positive displacement down low, which cuts out and lets the turbos take over. Nearly got there once before the car I was doing it to got written off.

[@CarsLife]

THE best forced induction comparison vid I've seen! A single turbo setup on the list would have been very interesting. I'm hoping you'll do a single versus twin comparison soon 👊👍

[@soundslikealot]

1 person doesn't like ANY kind of boost 🤦🏻‍♂️🤣 Probably he's running a carburator on a SBC and keep telling his friends that he's almost done with his "mad 350hp build" 🤣

[@regal105]

noname_RU still gets to and from cars and coffee lol

[@DodgyBrothersEngineering]

I remember a time when 350hp was something to be proud of. Wasn't this millennium, wasn't even in the last few decades of the last one, but I do remember a time. 350hp was a mad build :D

[@kylemilligan752]

Oh but no, the car show carb sbc guys with camelhump heads all have 500hp 😁

[@DodgyBrothersEngineering]

@@kylemilligan752 don't knock the double hump fuelies. Mate of mine bought a set off the local engine shop that they used on their race car. Cost him about $2,500 probably getting on for 35 years ago. That was a fortune back then. Very few people owned Chev engines back then, let alone have a trick high hp engine :D

[@kylemilligan752]

Not talking about real racers. Specifically the car show dolts.

[@MrLightning54]

Excellent video, your hard work has shown through on this video, just as the other I've seen of yours!

[@paintballpartutd]

My prayers have been answered! Looking at boosting my mach 1.

[@bestmichael1]

deez nuts keep it low I boosted my mach and the engine blew keep it around 450-480whp Now I have a forged bottom end If you wanted to keep it safe on the cheap you could pick up some boss rods and you’d be safe to 600

[@monsterstang]

Love the mod motor content, so tired of LS everything. With the kenne bell twin screw, was it the hot box 2.2?

[@cc23001]

Vortec missed the ball on that plenum design but curve gets my brain wondering what's beyond! Lol. Great work Rich!

[@Laviathan50]

Would love to see this comparison on a 11-19 Coyote 5.0

[@mickeymang6]

Basically multiply everything by 1.5

[@midnight347]

​@@mickeymang6 power would be similar but on less boost because it has more displacement, headflow, rpm, compression and tech (vct). These older 4v motors made better torque than coyotes with similar setups. The vct helps alot with that though.

[@josephanders6052]

Wish I saw more compound boost setups. Turbos feeding super chargers.

[@dilsher12]

How about doing an LSA supercharger test on different displacement LS engines like 4.8, 5.3 ,6.0 , 6.2 but with the same pulley size and see how the boost varies and power level varies

[@austinhowze6280]

This is work he did in the pass

[@chrisjamieson1285]

That would be an interesting test! But its almost unnecessary. Use the boost formula and you'll have all the info you need.

[@drivinwithdrew7676]

Yes I would do this with LS motors, but I’d add an extra twist too it! I would do exactly what you did in the test, then I’d add a test where you actually over rev the engine, to see how the power curves hold up, just so we can see how long that centrifugal super charger can keep making power, and also see how fast the roots and twin screw fall off. Then take a power average from the lower revving test, and one from the over revving test! It’s a lot of time and testing, but I think it would answer a lot of questions, and people will love it

[@DCamp1711]

Absolutely amazing video. The extreme hard work, time, and dedication to create this knowledgeable video is a true treasure. Thank you for creating this

[@tptrsn]

More amazing tech sharing here -- THANK YOU RICHARD!!

[@chrisjamieson1285]

YES! This test with a 6.2 LS3/L99! Thanks for all the great content bud! One of my favorite informational channels on the tube!

[@lancelanphier9509]

Love your videos! Man you spend a lot of time to do these comparison tests, and we appreciate that. .... Good info and questions answered that probably would never have been answered otherwise...thank you Richard!

[@DodgyBrothersEngineering]

would be keen to see a comparison of modern Eaton like the TVS2650 and something like a Whipple.

[@mikjryan]

Me too been in some of those cars goddamn they move

[@midnight347]

The modern 2650 Eaton is a whole different animal. In the old days when the Eaton was under 2 liters and inefficient the twin screws were more "efficient" and the twin screw guys still hang on to that to this day and they think their twin screw is "more efficient" than the 2650s but liter for liter it is the exact opposite. That is exactly why you dont see 2.65 liter whipple and kb coming out even though there is a demand for smaller blowers all the stock motor and even some built motor guys south of 1000-1200 whp like to run them. Why is that you say? Because at 2.65 liters neither whipple or kb would be able to match the Tvs 2650, despite being "more efficient" (according to the twin screw guys anyways lol). That is a 20 year old way of thinking and is no longer true. Displacement for displacement the Tvs is king. Only way a twin screw matches or exceeds it is with a lot more displacement

[@ebay4dave]

Richard knocks it outa the park again with his tests, keep it up mate, your doing some awesome work.

[@kevinengland4042]

Sounds like a perfect series for the big bang big block!

[@VTLIFE-so4dc]

Richard, I remember reading about "the flying brick" back in the 90's. I still have an 80 Mercury Capri thats been sitting in storage since '99. Someday, I'll dig it out. Thank you for doing so many side by side, apples to apples comparisons, on so many engines. Keep up the good work!

[@MrOgre1110]

Great video again Richard, was a case of spending money where you don't need to with the vortec Haha. Just love turbo boost! One thing I like about turbo is you can drive off boost, putter around like a grandpa and get the corresponding economy then mash the loud pedal for that overtaking power you need.

[@paciencia0956]

The twin screw seems really nice for engines running into the 3500-6500rpm, was hoping to see all four choices compared to each other some day finally its happening, thanks for the video.

[@madmod]

You can really pulley up the roots blowers with big crank pulleys and lower your rev limiter to see good torque gains.

[@TheJMan1K]

@@madmodgood idea didn’t think of that. What about dropping the rear gear a little to keep some top end?

[@madmod]

@@TheJMan1K Rear end gearing definitely plays a huge role with blower cars.

[@Drake5153]

It would be really sweet if you could compare brands of positive displacement superchargers like the new tvs, 5.0 3l whipple and kenne bell to show the different boost curves and efficiency ranges they make!

[@mxguy2438]

Awesome stuff Richard!

[@muk5production]

Thank you for this episode, but can you try this combination on LS please.

[@Pitbull14218]

You also removed restriction when you removed the intercooler/intake setup, so it also flowed more cfm.

[@raymondwalker2109]

Thanks for all the hard work you put in Rich poor people like me can't afford stuff like that but just as astonishing to me was the fact that this video had no commercials😁😁😁😁😁

[@richardholdener1727]

It better have commercials or I won't make my $3

[@seanw3621]

Great information!

[@retrorider915]

Need to see this exact type of test on a Mustang GT (18- 22) 5.0 L Coyote! That would be awesome & much needed especially cause it’s a very common build. Thank you!

[@nathanlodder1006]

You are creating awesome content with all these tests... especially with the different FI options. There are many engine families out there with lots of them sitting in junk yards lol. Great job Richard, we all keep looking forward to new tests🤘

[@partainbanner]

I'm so happy I found this channel 💯😃

[@CS-lh3oz]

Great video, very informative! I'm interested in the B16 comparisons, but since there isn't a twin-screw SC for it, would you be interested in trying it with a K20/K24 or BRZ's FA20/4U-GSE engine? Supercharging, especially twin-screw or roots, is usually applied on big displacement engines, so it'll be interesting too see a test done with a small 4-cylinder engine.

[@batman9592]

Amazing work. Thankyou. Oh and the word you're looking for re: Intake swap is "Serendipity".

[@bartpang]

Great video of information nobody else has ever posted. It would be great to see to centrifugal blowers maxed out. They have some very interesting characteristics when run there.

[@smokenchoken1736]

Holy Fork it wasn't an LS!!! Love the content as always Hey lets do a big bang shootout with RV 440, 454, and 460!!!

[@timothybayliss6680]

Where are you even going to find them? I would way rather see a Gen3 Hemi pulled from A truck and freshened up with bigger ring gap and twist the screws on a turbo to see what actually breaks and where. The 5.7l has a bit of a reputation for cracking pistons and I have a feeling that Richard can pull some wizardry on it. Any of the old school big blocks basically cannot hold a candle to any newer engine. The RV versions as opposed to performance versions are even more sad. Most of them are under 250hp and had less than 9:1 compression and terrible heads. There is almost no point in using one unless you have a car it fits, and even then the top of the engine ends up in the bin as the head, intake, exhaust manifolds, carb, ignition, camshaft and the rest of the valvetrain is an incumberance to using all those cubic inches. It might be different if you could pull an engine out of a truck or RV for $500 and walk across the yard to a car and pull the heads and intake off for another $400, throw some headers on it and for under $3k have some action but now even crap '60s iron big block heads cost more than the Chinese aluminium castings that summit racing will FedEx to your front door. When is the last time you went to a junkyard and there was more than 2 forged crank 440s there?

[@brianfrost303]

@Joe Paul definitely youshould try to do that for 1k, let me know how that goes for you!

[@brianfrost303]

@Joe Paul like i said.. GL with your $1000 turbocharged intercooled LS build! Maybe you'll get lucky and have $300-400 left over for a nitrous kit and a fully built trans and rear end while you're at it.

[@brianfrost303]

@Joe Paul i think it would be well worth while to get in touch with someone who's done a turbo LS and see if they can give you some insight into what it ended up costing all up. I'd agree that the LS platform is relatively inexpensive in terms of horsepower per dollar, and difficult to beat. but i also know for a fact that $1000 won't go very far.

[@offworkhours]

Great video! Thanks for taking the time to make this.

[@anthonyrowland9072]

it's crazy that steigemeier is still porting those same eatons. the 8th generation porting can make near 600rwhp now. they also have a 122 rotor upgrade from the old gt500 for the factory 112 case.

[@IAmMrTrumpet]

You’re the man.. I’m sure everyone would love to see this test on a good ol 5.3 as well!

[@Cowboy.underwater]

Literally nothing will change. He talked about that in the beginning of the episode.

[@IAmMrTrumpet]

Colton Robinson I mean.. I’ll quote him if you want... “Let me know if you guys want to see this applied to a different engine family”.

[@richardholdener1727]

that answer is ALWAYS YES

[@Cowboy.underwater]

@@IAmMrTrumpet But if it gets the same results on a 1.6 b series, a 302 windsor, and a 4.6 cobra, what's the point of doing a 5.3 LS? The dead horse has already been beat.

[@dr_tate]

Still nice to see

[@williamanderson4706]

Love all the information keep it up. I would like to see how compression ratios affect boost maybe if it changes the percentage of increase of horsepower according to what compression ratio is being run. Just something I've been thinking about.

[@nickolaswhite4288]

William Anderson compression is good

[@jameswilson8907]

I'd love to see that as well. As someone who came from 4 banger turbo imports to learning V8s that's the question that always lingers in my head. Seems the v8 guys leave the higher compression pistons the way they are when boosting but in the 4 cylinder world where 25+psi is normal they always seem to want compression more towards 8:1 as to cram more air/fuel in there and run more timing without detonation.

[@busij44]

Good info.....and not on an LS!

[@stanlane5322]

I have been a hot rodder all my life, but i must say you've taught me more about boost then i thought I would ever know

[@Wickhaven1]

Richard you are awesome for doing these videos. Thank you.

[@Rancejunge]

Great video and makes my choice the Eaton because of low end torque at low rpm where I need it on my truck for pulling.

[@n8dawg450r]

Awesome work, yet again Holdener! Thanx for what you do!

[@rickybobby0314]

Awesome 👍. I won’t worry about doing it on an LS motor too. However it would be cool to see a torque cam vs PDB cam vs centrifugal cam vs turbo cam vs NA. And just see how the power curves are different 🙂

[@ROBERTJH1979]

You should have three times the amount of subscribers with your wealth of knowledge that you offer all of us.

[@b00st_SS]

Here it is !!! Greatly appreciated!! Thanks for sharing all the knowledge from your testing

[@derekhall6687]

Hey Richard. You need to write a book. How to Tune your F.I. Engine for Beginners . I bet you'll sell a ton. I would definitely buy a few. One for me and the others would be GIFTS. Any recommendations for How to tune books. I am having trouble finding up standing speed shops and tuners in the Rincon , Ga. area. All seen to untrustworthy.

[@richardholdener1727]

I have written 10 books but none on tuning-I'm not much of a tuner-WOT on the dyno is easy

[@brandonpanozzo86]

Yes yes yes you are the man richard

[@duanehamn6996]

Awesome videos, look forward to each new one like I was waiting for next month's hot rod addition back in the day before internet. I would love to see some comparisons between junk yard turbos off of diesels used on gas engines.

[@TheProchargedmopar]

Ok, So after all these years and tests what is your dream STREET car (actually daily drivable) combo? Car, engine, induction?

[@mathieunoualy2102]

Really wish you had done the torque curve comparison between the different boost devices. Hp is nice but so is low end torque. Oh, And a big Yes to doing this on the ls. On the 6.0 would be nice.

[@mathieunoualy2102]

Anthony Thomas. I like to see the complete picture. Ive had both types of boost adders and like both. Depending what it’s for I have a preference. To each his own.

[@TheMGChannel]

This information is Priceless, no one would really do this kinda of test in the real world.. awesome video 👍🏻 Thank you

[@Mattvardaman]

I love these tests! Laying down the facts and numbers. All this information for free? Awesome!

[@RussManK3]

Nice to see you use a 4v engine finally. Can you make a video on how to degree custom 4v cams?

[@03sierra36]

I’m glad your videos came up on my recommended. So much good info and this channel is gonna become very popular very soon

[@MrTherocafela]

Well I don't wanna sound so demanding but YES PLEASE!! Make a LS video with these applications lol. Im planning a LS swap on my 96 mustang GT and a friend of mine suggested I check out your videos and boy was I'm not disappointed. I'm pretty picky when it comes to subscribing to channels. You are one of the few channels out there that stick to the narrative.I'm not knocking all the other channels out there but I'm just not into their personal lives I basically look at thier videos just for the car stuff and fast forward the rest. I don't have to fast forward through your videos like I have to do theirs. You are full of good info and I think I speak for all the other fans out there keep up the good work and God bless.

[@calivette805]

Thank you Richard . These videos are simply amazing. Can you show us some of your rides if that’s not to much to ask .

[@sarahdell4042]

It’s weird to see these figures without drivetrain loss

[@fredred8371]

We don't need a face cam, It's blocking the RPM of the dyno chart.

[@grumpysteelman]

It does help keep crappy people from easily stealing his dyno charts as his own.

[@modmotors1929]

As many other's have commented also, thank you for this!

[@76v8jeep]

It seems the centrifugal blower would be much easier on the trans, rear-end, and engine . What I would use on street because I don't have the money to replace expensive parts. Traction would also be better instead of blowing the tires off. Just my opinion.

[@tunerdadtunerdad7927]

I have had them all and currently have a Procharged Corvette and a Turbo Lsx Mustang. You are 100 percent correct. The vette has better traction do to the linear boost curve, better manners and doesn't try to melt everything under the hood. Only 2 sets of spark plugs in 5 years. The mustang needs constant attention and must drive around on Drag Radials and watch the temps in traffic. Centri for the win.

[@Sir.VicsMasher]

Yes it's why all the manufactures put centrifigulas on their factory supercharged engines...

[@tunerdadtunerdad7927]

So insightful..

[@Red2l16v]

A lot of newer Centrifugal Superchargers are now over driven with a restrictor to limit boost but give more mid range tq for the target HP. If you want a gradual boost curve on a Turbo car you can ramp it in any way you want so it isn't a downside that it can be way more effective. Turbos are so much more flexible than SC it is insane. The main difference I see between the two intake manifolds in this test is the size of the factory IC block is a restriction probably more than the intake runners as Richard stated. I would not draw the same conclusions. A larger A/W IC would have helped. The factory IC is known to heat soak and restrict flow. That's why the units without it made a ton more power. ATI uses an Air/Air IC on their Centrifugal SC with great results.

[@Hitman-ds1ei]

Only down side I see to centrifugal is any belt drive bangs on the bearings somewhat depending on what type blower and what type belt drive as to how much, so turbo with boost controller probably better longevity deal if control boost for torque reduction down low like centrifugal, just my observations.

[@jcnpresser]

I’d like to see a test with camshafts and intake manifolds, using 2 different cams with the same specs except for LSA, and swapping intakes out, maybe one like a 4 barrel style and one like a truck intake, to see how lsa affects hp on different intake styles.

[@leoreid5649]

Great video and always Informative Richard.

[@rogergm92]

Thanks Richard! and for all the LS guys (including me), the same thing will happen with an LS

[@rogergm92]

@@Big2009Gee Exactly! that's why I say that the same thing will happen with any LS

[@randyvanderheyden3960]

I wonder if setting an rpm with the boost level would help even the playing field. For example 11.5 psi at 5250 rpm. Its so hard to get a fair comparison especially considering volume of air between blowers and the turbos, not to mention the plumbing and temperatures. 11 psi through a 2 in pipe is alot more air than 11 psi through a 1.5in pipe. Interesting stuff and love this channel

[@user-mf2gr3cz6e]

All other variables staying the same (heads cam intake) the size of the pipe doesn't matter as long as its not a restriction which would only happen for a extremely small pipe, airflow stays the same, a smaller pipe will just speed it up

[@invertedpolarity6890]

I prefer the PD blower. Having so much torque down low just makes a car a lot more fun to drive.

[@heathsmetalwerx]

I think u overlooked intercooler restriction in those manifolds, that with runner length is the reason I believe.

[@EGGINFOOLS]

Awesome! I'm curious about intake temps

[@richardholdener1727]

not sure I got those

[@brandonwoods9466]

Awesome video!!! Next time, could you compare turbo to centrifugal supercharger with the same intake and same intercooler?

[@lindsaydempsey5683]

Great work again Richard, really interesting to see the effect of the long runner length, very surprising to see that much difference on a SC application, NA I would understand, but SC, that really surprised me. Keep up the great work.

[@supernova5end]

Have you ever thought about doing a test on the distance the turbos are from the motor? Just to see the effective range or how much the power drops when they are moved various distances away from the motor?

[@richardholdener1727]

Power won'tusually drop-just possibly response

[@supernova5end]

@@richardholdener1727 that is what people expect. The reason for asking for the test is because of rear mounted turbo systems and the effectiveness of coating and/or wrapping the pipes. Also it was your video on putting a proper turbo on your build that made me wonder how big the differences were with similar turbos if any at all or if people have the placebo effect with having a manifold or front mount turbo

[@baronhyatt6729]

This is pretty cool but the easiest question and or answer to this is which is the cheapest and which puts produces the most horsepower by far the turbos are better but does it cost more to have it done then the superchargers

[@Smith686plus]

How about an LS comparison, but using the same forced induction set up on the different displacements? 4.8, 5.3, 6.0?

[@Drunken_Hamster]

Seems like the centrifugal doubles its boost every 1.4x RPM. So if you could run it 28psi at 6500, you'd get 14 at 4600 and 7 at 3300 and 3.5 at 2400. But most applications don't (and can't?) see anything close to those numbers of boost. Turbos on the other hand seem to have a huge spike between 3000-4000 depending on the application, then carry out to redline. What I want is a soft gradual ramp that hits at a better rate than a centrifugal, but I still want to get like 6 pounds sustained between 2000 and 3000rpm just to eliminate pumping losses at cruise RPM. But at 4000 I'd get 12 pounds and by 5300 I'd get 24 pounds, for instance. So roughly a 1.33x rpm for double boost, but with a bottom end that isn't completely useless. I mean, I don't even dislike the centrifugal's rise rate, it just needs to start rising sooner and have 4-6 pounds from "idle" to 1/3 of the redline, and then allow me to simply cap where it makes boost and then be flat from there out like the turbo. *I guess I just need a turbo setup with really good wastegate control and a customized boost curve, eh?*

[@rosarawlins9471]

awesome content. Richard is a pioneer!!! would love to see this work on a stroker combo?

[@TheProchargedmopar]

And Smokey Yunick, he had some crazy super heated intake charge turbo setup.

[@AlistairLattimore]

Richard, you’re killing it - such amazing videos and knowledge!

[@brianjohnson4356]

Richard your videos are getting better and better

[@Sir.VicsMasher]

Great work. I would have loved to have seen how a 2.3L TVS supercharger stacked up in this test.

[@Sir.VicsMasher]

@@dj4monie I use to think that as well until the new 2650 TVS started out performing 2.8L twin screws.

[@midnight347]

@@mfjones2217 you are just flat out wrong. Vmp did a test where they gave the kb the mammoth inlet and biggest tbody they have and intake etc. They had similar numbers pulley for pulley until they really started pushing both then the 2.65 pulled away by 20 or so rwhp but that wasn't the part that sealed it for the tvs. It was the back to back to back runs where the tvs lost 5 hp and the kb lost 60+. That is efficiency doing that when everything else is equal. I know it's hard to understand how a 2.65 liter can outperform a larger twin screw when the twin screw is supposedly "more efficient" well news flash...it isn't. It is the tvs technology it's just better and it's more efficient Ecspecially the vmp version using the 2.65 rotor pack. The roush version is very restricted via the inlet. Its vmps work with the inlet that makes it so efficient and the dft I think it is technology that Magnuson patented. The tvs just works and liter for liter it's the better blower. Only way you can exceed it with a twin screw with all else equal is more displacement and 2.8 isn't enough more to do that. The 3 liter whipple might best it on an absolute max effort setup mostly because of the much larger intercooler it utilizes but anything up to that point they'd be comparable imo. You twin screw guys need to come out from under the rock you been living under the 2.65 liter eaton tvs rotor pack isn't the Eaton on the 03 cobra....totally different animal.

[@midnight347]

@@Sir.VicsMasher it smoked a 2.8 kb when spun hard on back to back tests and it wasn't even close. I honestly think it would hang well with a 3 liter whipple up until a max effort setup where the larger intercooler utilized by the 3 liter would give it an advantage. On average setups I bet they perform similar comparable. Andrew from mustang lifestyle switched to a 3.8 whipppe and only gained like 100-150 rwhp on a basically max effort setup it's pushed pretty hard on a built motor. Alot of that gain was switching to a larger jlt intake which at the power level he was at the tvs would have also benefitted from. That makes them about 100 rwhp apart on a max effort setup give or take that is a 2.65 vs a 3.8 and whipples latest design. That right there in and of itself should tell people all they need to know about the tvs. Those big blowers aren't necessary they are extra weight, won't fit under the stock hood, and put alot of additional stress on the crank. If you want more than the 2.65 tvs is capable of (which is ALOT) you should go turbo imo. I don't see the point in running these huge ass blowers.

[@brianbrigg57]

Great test and some very good points. Just one question, could you have used the air to air intercooler with the centrifugal supercharger and the decent intake runners?

[@keithturk104]

Just loved this... we've run them all over the years and honestly on a car that deals with High RPM 90% of the time the ProCharger is the poop... nice to see it confirmed ( we're not allowed to run EFI in our form of racing so ... Turbo's aren't always the answer )