How to increase Supercharger efficiency | Harrop TVS2650

Joel Bottomley of Harrop Engineering shows us what supporting modifications can be performed to a supercharger for increased performance. The Harrop TVS2650 positive displacement front drive front inlet supercharger feeds a 427ci LS V8 engine built by Dandy Engines and tuned via a FuelTech FT600 management system.
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#supercharger #harrop #LSTHEWORLD #fullboost #dandyengines #fueltech

[@mattward330]

Gotta love a positive displacement blower

[@AlsAllAussieAdventures]

That has got to be the ultimate street setup!! Huge power, huge torque and that whine is divine!! ahah

[@bstevermer9293]

The 70 degree inlet temps. My god that’s impressive

[@ACCELGarage]

Good to see cam specs revealed. Would love to see how it goes against a 235/252 119+5 (BTR PDS 4)

[@fullboost]

Torque monster! 💪

[@jmoore9806]

FAARRR OUT Yeah man a 1000Nm of rear torque figures IS NO joke....That's insane fullboost.....i know how bad Only 630Nm of torque Can be on a Tuff Brand new R60s Tranny good for 800Nm,...I have only been bashing on my stock new R60 Tranny for 1 week after a 3intch TBE + Nizpro tune......And I'm already getting some slip in 2nd gear from my Torque converter i presume 🤔 ?

[@happymanasfksubaru2846]

My heartbeat makes 475rwkw 1200nm

[@MafiaboysWorld]

Would be a good car for that sales rep to get to Swan Hill. 😉

[@fullboost]

@@happymanasfksubaru2846 👍Nice one. Torque at the wheels is not the same as at the engine. This is making more than 1200Nm.

[@evpgcomo98]

Guys, your channel is just awesome. The videos are extremely well made, dynamic and informative. Incredible work!

[@TheCuttz1984]

I want one for my baby 1uz 4l. That thing was music to my ears. Of the shelf combo of 1000hp is bonkers.

[@mrmacca2692]

Im planning to do one on a 3UZ-FE! Ive seen how htv1900 and htv2300 go. Really keen to know how the 2650 improves on them with the smaller engines.

[@TheCuttz1984]

@@mrmacca2692 my thoughts exactly mate. I can get my hands on the hvt2300 kit for the 1uz. Would love to see the larger kits available for them also

[@brianpreston2019]

Harrop make good products. We use to have them on our cars at lotus

[@kimw9340]

Gotta love Australians they love there muscle cars wish it wasn't so far from the U.S. I'd go there just to hang out.👍😄

[@Aseutester]

I wouldn't it's increasingly becoming like commiforia!

[@dj4monie]

@@Aseutester Supercharged cars are the ones to own for big power in California. Honestly it's not hard to change out your turbo setup for when it's time to smog the car. Just takes more time. Most people aren't hard core you would have to be pretty hard core for more than 500 hp on the street. Most of you aren't, you think you are but you aren't.

[@rupert5390]

@@Aseutester A bit but we'll beat the pricks back - we're being inspired by Mr Trump - you'll note we've e;lected one his his good buddy's as prime minister - aussies are generally a quiet majority (sorry to be political)

[@pigupigu]

No one gives a fuck bout usa. Fuck off

[@harrisonclark4382]

Cuz they’re all descended from criminals. Lol.

[@rggt6225]

Front feed is where it's at good stuff

[@dj4monie]

Nope, rear feed you can run 200 mm throttle body = Kenne-Bell.

[@rp75heavy]

what about adding water methanol. ..?

[@motorised1]

harrop have gone all out on the bigger youtube channels

[@DaveHiggoHiggins]

Great vid. Love that it's all off the shelf and it doesn't have to turn to 8000+rpm (although the sound would be insane) to make incredible power and torque. Looking forward to seeing this HQ it's going into and watch it perform.

[@yolofullsend]

The hp went up but so did the boost levels.. how about an apples to apples comparison to show the gains from porting the supercharger and adding the spacer.

[@fullboost]

The boost will automatically increase when the charger breathes better i.e less restrictive air path. 👍

[@yolofullsend]

@@fullboost hmm.. I never thought about that. I always thought boost pressures dropped when restriction decreased but that's probably engineside.. I can see how allowing the supercharger to move more air per rotation would raise boost levels... interesting.. great video. Thank you.

[@dj4monie]

@@yolofullsend That depends, superchargers need more air in than turbos do. That's why Kenne-Bell sells 100+mm throttle bodies. This TVS blower with a 102mm and 15-17 psi the output is very typically about 1000hp on the dyno. However by the time it travels through the automatic trans, drive shaft and diff it's down to around 950 hp. Still nothing to sneeze at, much easier though more expensive to upgrade supercharged cars, though 4 cylinder supercharging is lagging WAY behind, though you can get 500-600 whp out of Rotex setups and 2300 TVS on Honda K motors.

[@midnight347]

@@yolofullsend yea on the engine side it does drop when more efficient but when you make the blower itself more efficient or run a larger air intake or throttle body the boost will increase without touching the pulley sizes.

[@TheCanadianBubba]

Great evolution on the dyno... and gains with each addition ! Suspect they had it all figured and this certifies gains made for the client... that about right ?

[@brianpreston2019]

That’s an amazing engine! Probably a lot more than I need though ha

[@MrLincoln87]

What car did this end up going in? Any video of the engine in the car??

[@jasonswift7098]

What would this combo at 1068hp on the engine dyno equate to at the wheels in a HSV?

[@dj4monie]

Mid 900 whp

[@DanielOrtegoUSA]

I want this exact kit for my 427 Chevy SS Sedan (VF) Noonan LS Edge block build.

[@joshuarobinson1213]

Is the spacer good for the car in the long run

[@cstavro]

E85 is an automatic 5% power gain from fuel btu. I'd say it's knock limited to maybe 900 bhp on 91 octane. any tests? btw, 1-7/8" headers are plenty for this engine. you'll only see incremental gains with a 2" primary tube.

[@fullboost]

The collector was more of an issue. We did a back to back test on an NA engine using these headers and picked up 10hp up top. Yes they do still make good power on unleaded. It was tested on E85 as that is what it will run in the car. 👍

[@Turshin]

You guys should do this with a MOPAR Helephant crate motor. Then swap off the OEM supercharger and bolt on this supercharger to see the difference

[@aaronb1320]

Thats great in theory, but 99% the helephant wont be available here from Fiat/Chrysler Australia. If the helephant crate motor is $30k USD, would probably be around $55k AUD. We dont even get from the factory: chargers, challengers, demon, hellcat etc. Any cars here are grey imports.

[@adambrooks2297]

@@aaronb1320 stay with GM! The LS,LSX,Gen5 platforms are killer here in the U.S,Ford is coming fast though, small powerplants with big numbers!

[@almac8052]

Do you guys offer the manifold spacer for the 5.7 tundra?

[@MmeDesgranges]

Great piece, look what you can do these days ..

[@danielbrealey2924]

Great vid...

[@robbiezerella6062]

Like to know wat that Callie’s compstar crank is rated too???

[@hdw-uv8yb]

Can i put that in my carmaro ss?

[@Brenkeeno]

Awesome video fullboost keep them coming

[@7071t6]

WOW great stuff now we have a idea of sams VF GTS, so basically more or less the same stuff engine and combo, but different internals and heads, but basically it will be the fastest HOLDEN VF GTS in the world really once the tracks open up again?

[@Adxn427LsX]

Wish I could get one for my 02 fbody.

[@dj4monie]

Eat Ramen Noddles, improve your credit, refinance everything, get a low interest credit card , ask for a raise, work Uber (not in your F-body). About $7K for a setup like this (blower only). LSX 427 can be done with a truck 6.0 iron block and a scat stroker kit, not that expensive and will hold the boost no problem. My buddies LSA CTS-V makes 748 on the stock blower and E85 run low 10's on DR's

[@Adxn427LsX]

Currently looking into an eforce TVS2300. Its 6k. Hawks is suppose to be coming up with a kit with a 2650...if it's 7k then I'll get it. No reply yet. I already have the rest. Might lower compression so I can run more boost.

[@GIGABACHI]

How comes Straya produces so much E85 ? From what/where do they get it ? Apparently EVERYONE runs E85. 🤔

[@user-pi6cs3ue4s]

Queensland produces masses of sugar cane. E85 is less available compared to a few years ago, now it is in every major city at a bit of a premium compared to where it was widely available at a big discount. I think most people using it are doing so for performance and not saving money these days.

[@GIGABACHI]

@@user-pi6cs3ue4s Thanks for the brief explanation. Question: Is E85 Still cheaper than regular petrol/benzine/gasoline OR more expensive ?

[@user-pi6cs3ue4s]

@@GIGABACHI Depends, E85 where I am at this year ranged from $1.30aud to $1:46aud and 98 premium ranged from 1:30 to 1:80. If E85 is 30% cheaper then it is economical. Otherwise its just for the performance benefit. I get about 60kw and 50nm of extra power on e85.

[@user-pi6cs3ue4s]

@shane marz Depends on your engine and setup, e85 is effectively acts like a higher octane, so if your engine timing is limited by detonation then e85 has more headroom to get the full potential out of the engine. On naturally aspirated engines you may not gain anything unless they have high compression 12.5:1 or higher. With forced induction it gives more headroom before being limited by detonation. So with the supercharger. with less efficient intercooling, I was getting +30% power on e85 vs 98 octane. For turbo with an efficient intercooler and decomped engine, the gain is about 10-15% and other advantages like reduced turbo lag as we are injecting more fuel producing a bit more exhaust. In the worse case scenario on low compression naturally aspirated engine not tuned for e85 (newer than 2009 or you could have fuel system issues) you could lose 10-30% power instead. E85 does have the disadvantage that you need to use synthetic oil and need to change the oil twice as often.

[@Big-Show1]

I want one for my VFII Redline 6spd lol.... Anyone know what size Injectors Harrop use for the 2650? I know In the states they are running Bosch ID1300x's for similar power figures

[@blackbb8442]

How many cc are the injectors?????

[@Sir.VicsMasher]

All this time I thought Twin Screw superchargers were better then TVS. These 2.65L TVS blowers are making more power on average then 2.8-2.9L Twin Screw's.

[@cali2468]

They make way more power than a 2.9.

[@dj4monie]

Twin Screw is better. New Kenne-Bell Twin Screw at the same boost level is 1,100 hp. Most people aren't running them that hard.

[@midnight347]

@@dj4monie how is the twin screw better when it takes a decent amount more displacement to top what the 2.65 tvs can do. Please explain that to me. 3.6 KB can barely outdo a 2650 in an all out built spinning it to the moon. Anything smaller than a 3.6 is gonna have a hard time keeping up with a 2650 tvs. Displacement for displacement the tvs owns twin screws. Whipple is better than kb for sure but even the latest greatest whipple needs to be 3 liters to play with the 2650 tvs. They make more power than the 2.9 whipple did as the op stated. You twin screw guys are just in denial. Anytime the argument is brought up the twin screw guys start talking about how a big ass twin screw can make more power no shit Sherlock let's see a 2.65 liter twin screw touch that tvs. It isn't gonna happen that is why they don't make them that size anymore lol. They wouldn't be able to hang with the 2650 tvs.

[@harrisonclark4382]

@@midnight347 Facts.

[@Gornflyin]

how much does an engine like that, turn key, cost? Would it be around the 30k mark with the Harrop parts?

[@danielmclean7651]

Well the blower is 12/13k buy itself

[@joshadams2908]

What size motor 5.3 or 6.2

[@Mish93Will]

The best way to increase supercharger efficiency is to go turbo!

[@mr.mckinnon5680]

You just go ahead and wait till your Boost kicks in... We'll wait...😐

[@Mish93Will]

@@mr.mckinnon5680 Have you ever heard the sayings "Patience is a virtue" and "Too soon junior"? 😏

[@mr.mckinnon5680]

@@Mish93Will ...from your mom...ha! 😂😂😂

[@mr.mckinnon5680]

@@Mish93Will ... Are you seriously going to sit there and patiently watch thier tail lights get further away?

[@tinatpasselepoivre]

or to go twin charger... Best of both world... If you manage to not destroy the engine that is.

[@hksto4s]

Where i can get the spacer plate

[@mrmysterious6006]

Can you guys please do a video on intake manifolds for these engines? I want to see the FAST with the long, mid length, and short runners on a stroker engine with a healthy camshaft to see the results

[@fullboost]

Thats an expensive test 👍😊

[@lpz3665]

I wanted them to say it's the last of the V8s.

[@bogey19018]

why the sudden stop

[@zacheriashelm]

Compression on the cylinders. Once they cut fuel. And spark. The compression is a hell of a break.

[@damnationswarhead8005]

nice guys.love your channel:)

[@ericazhu6270]

Feilong Jiangli auto water pump,oil dipstick,rubber parts,welding parts.

[@tomdtom5407]

Brazilian fuel injection ( Fueltech). There are other companies here with good products, like Injepro and Protune.

[@nordic5490]

What about fitting all that under the bonnet ? Low profile is key.

[@fullboost]

It will fit under a VF yes but under an older car, yeah you'd have to run a small bonnet mod.

[@7071t6]

Notice the stock Ls coils, lol:) dont know why people go out to buy 10mm coils leads or even larger when it proves it that the stock 8mm coil leads are just fine. :)

[@infinitiguy7840]

Is it possible y'all can make a 2013 Infiniti QX56 go faster? It's a V8 Nissan Motor

[@ports787]

That’s the 5.6 V8 I take it? If so then They make a super charger for that very engine. Quite a few people run them on Y62 patrols now days!

[@poorboy3136]

Whay does the 2650# represent?

[@fullboost]

It's using the Eaton 2.65L rotating core.

[@ripfletching]

Would love to see you build the coyote 5.0

[@MrLincoln87]

forced inductions interchiller review/testing? Granted this car prob wouldn't have a A/C pump... but in saying that, would an interchiller be worth having an A/C pump to drive?

[@ACCELGarage]

Not really necessary when running E85

[@sirnathanieltayloresq7800]

You would still benefit. The air would be much cooler. Same with water meth. It would help as well. E85 is great but it isn't the perfect solution. Everything can always be improved :)

[@despizedicon]

Buy two turbos???

[@mattward330]

Need one on a diesel

[@erickwan9583]

SHould have turned off the lights and show us the glowing exhaust

[@110americalovingpatriot2]

Can you guys send me one to test out on my Chevy truck with the 6.2 stock motor so I can do a review? Hehe

[@tregaming07]

Hey uhhh is it just me but at the beginning did that sound like a hellcat cause of the supercharger

[@2burning2turning]

This thing is going to haul arse, any gear, any rpm.

[@alexrodaro1]

This sound remind me the Nautilus of 20000 leagues under the sea

[@StormCentre88]

Not sure that all those changes actually increase S/C efficiency; although a few of them increase power.

[@custommotor]

I want to agree with that. I don't think any of these things are making it more efficient just giving it more resources to make more horsepower

[@stevenp3176]

Less pressure drop equals efficiency.

[@StormCentre88]

@@stevenp3176 I must have missed that part of the video where they minimized pressure drop between the supercharger input/outputs; where was it please?. I thought they were looking at ways to increase pressure; which isn't necessarily an efficiency increase and/or directly dealing with improving pressure loss/drops.

[@stevenp3176]

Jim Stanley They reduced the pressure drop at the inlet.

[@StormCentre88]

@@stevenp3176 Was that via the fitment of a larger throttle body? Or, as shown at the start of the video, by removing the intake runner all together?

[@TheChemisch]

They need to make continuously variable supercharger pulleys.

[@dj4monie]

Get to work, you do it.

[@donovan007007]

My dream!!!!!!!

[@nighthawk0077]

Nice sound when it stop dead from 6K rpm..

[@greenteamracing]

Any idea on parts price?

[@brianpreston2019]

greenteamracing yeah I wouldn’t mind knowing too

[@MrHachirusto]

Call Harrop or Dandy engines to get a quote on what you need

[@gnagye21]

65⁰-70⁰ degrees. Is that Celsius? If 65-70F means 18-22 Celsius

[@fullboost]

Yes.

[@jasonwoody8041]

belt slip on those pulls 😣😣

[@JH-jo9wt]

That's 796Kw and 1388Nm of Torque - Holy fucking shit

[@darnice1125]

Doing other changes when porting the SC negated any proof the porting did any good. Make 1 change, test, not several changes and claim the porting did any good. He was even changing the tune between mods. So this vidio proved nothing in the end.

[@grimreaper6112]

1000hp is great in Sydney traffic.

[@harrisonclark4382]

Surprised the Left allows it. Bunch of wankers

[@nobodyheretoexplainthejoke6183]

Torque monster Twerk monster

[@TexasGTO]

Poser.

[@mikeymasi]

Hey cleetus what up???

[@nobodyheretoexplainthejoke6183]

Howdy partner!

[@RedDeadSpearhead]

Cleetus, what are you doing here, and what are you thinking about with a 2650?

[@nobodyheretoexplainthejoke6183]

What am I doing here? I’m doing it for dale here

[@The.Drunk-Koala]

an Australian talking cubic inches. 🤔

[@pebblez_]

Put dat on 8gen si

[@jeffsewell412]

110% overdrive, cant be right, looks more like 2.25 to 1 ratio from here?

[@chuckfults9256]

DAMN, You Aussies are puttin us to shame here in the states! almost 1050lbs torque AND streetable DAMN! with methanol injection, over 1100????

[@Fee.1]

chuck fults I am in love with harrop but it’s still just an Eaton blower at heart (not to diminish the work Harrop puts in to the package. I really with harrop would make twin screw kits instead though, the amount of tuning you can do with twin screws to get theoretically 100% efficiency, much more than roots blowers, even though the TVS roots have improved greatly, so has twin screw tech, and twin screws compress air internally roots never will, all being equal twin screws will always be better and always have much more potential

[@chuckfults9256]

Fee, Eaton has been around since Christ was a corporal. A little porting and a pulley change AND you will feel those 2 little mods in the seat of you're pants! My son did just those 2 in his M90 L67 Riviera Damn! All that stuff in Harrop's 20 grand LS Motor AND off the shelf too!!! WINNING! Add some Methanol and do a pull?

[@blueblood5297]

Comes down to E85 I think we are ahead of you guys using that Aussie's have been playing with it for nearly 10years now it's quite impressive the amount you can advance the timing compared to standard fuels

[@cali2468]

The Aussies didn't make this blower, it's made in America.

[@mikes02ls1]

Real test is heat soak, let test it here in Arizona with our 112 degree summer heat.

[@Rendezvous70]

Why am I not impressed when a 2JZ with stock internals can get 1000 horse for less $

[@fullboost]

Two very different torque curves 👍

[@Rendezvous70]

@@fullboost ya i admit that but almost twice the displacement

[@Rendezvous70]

@@fullboost not to mention what you guys do with a Cleveland it's still destroys the LS and in the state the Cleveland wins engine Masters Challenge almost every time

[@fullboost]

That's kinda the point of going for a V8 I guess.

[@speedlife301]

Stock 2jz can’t handle this tq on stock block. My friends have built Supras and they tell me all the limits of them stock

[@rggt6225]

Real way to see is with stock engine just blower

[@johnbowen2963]

KEEP IT REAL. AT THE END OF THE DAY , ITS NOT AN LS7 NOW, IT A PARTS BUILD ENGINE..

[@dj4monie]

So what? Semantics. A bone stock LS7 won't tolerate 1,000 whp either.

[@robertaswenson1192]

Dyno queen for the moment? I know I can eat off the piston tops😆 but when he lets off the throttle it stall shutters and belts start chirping,it alomst looks bad for the motor i know the only tyranny i would use is a 2 speed powerglide but that's me.these guys let off the gas and there ribs get bruised lol and yes I no its just belt slippage and going from WOT to idle why do we have to do that fuck! Awesome motor the car will be lots of fun

[@fullboost]

Because that is basically how an engine dyno works, there is no trans to soak up that load.

[@fsdicas]

sé loro

[@JohnDoe-ml8ru]

Look at that drive-by-wire TB blade flapping around, total crap. Switch to cable driven.

[@azmartin1977]

Its a street car engine and the DBW throttle is used to allow a blown, big cube and cammed engine to have some manners, the old GM stepper motor just cant respond quick enough, let alone pass enough air to keep up. That flapping is the ecu trying to stop the engine from stalling and also some input from the dyno operator and out of all the tuners i know or have met not one has gone, hey lets go backwards and run a cable throttle and yeah sure alot people go to cable, but thats not because it's better but just cheaper and they don't know the bennefits of DBW throttle.

[@JAP16V]

These blowers are fucking junk i had the teflon coating come off the rotors and distroy my engine im not the only person its happened to either. Harrop didn't want a bar of it since made the switch to a procharger and never looked back

[@bigdoo350]

Shit! 600ftIb of torque @ 2500rpm

[@mariai.cubillo4577]

www.gofundme.com/u58cm7-help-for-sage *CAR ENTHUSIASTS UNITE!* help her out if you can, Hoonigans stick together.

[@yeahsure4975]

Poorly designed blower heartbeat fair better

[@mareksumguy1887]

Huge cam

[@mareksumguy1887]

Bugger all gains... not worth it. The 102mm TB was the biggest waste of money. Totally not worth it.

[@MafiaboysWorld]

25hp from a throttle body only, bugger all? Please show us your engine building skills if you can do better than that off a simple TB change That mod is cheap horsepower. 102mm TBs on eBay are under $100, so you're paying $4 per hp gained. That's a fucking bargain in any book.

[@mareksumguy1887]

@@MafiaboysWorld Its not about total number gain. Its about PERCENTAGE gain!. You don't feel 25hp on a 1000hp engine!

[@MafiaboysWorld]

@@mareksumguy1887 It's not just percentage gain, the point being made here is cost per hp. Please spend $100 on any part and get me 25hp, regardless of engine. You won't get 25hp from a pod filter, you won't get an exhaust or headers or anything notable for $100. Even going from 200hp to 225 isn't a great jump, it's only 12.5% but the way you're making it out I'm going to get pinned back from that jump of power. 🤷🤣😂

[@helicrazee]

Id rather have 1000 than 975 hp

[@mareksumguy1887]

@@UnknownSovereignty All pain and no gain. 1. You won't feel the extra 25hp. 2. You now have a more (unnecessarily) sensitive gas pedal... which ruins driveability. Like i said, not worth it.

[@QuantumPlaysOfficial]

easy, use turbos omegalul

[@krismont]

How to increase Supercharger efficiency - change it to turbo....

[@grecoconduris6716]

Was that a bum bag at the end? If so, there are only few type of people who run bum bags and one of them can afford to spend money on engines like this. I'm no expert, but I wouldn't be advertising myself on the net. Just saying. haha

[@pannic11]

or he's just another working class bloke thats saved up coin and bought what he wanted.. Don't assume people based off a 2 second clip of clothing. Idiot.

[@grecoconduris6716]

@@pannic11 hahaha triggered and defensive. So sensitive. And what have I assumed may I ask? It seems you have made some assumptions of yourself as I have not specified anything.

[@pannic11]

@@grecoconduris6716 Well no, im not triggered I just dont see why you have to make any comment on the owner when the video is clearly all about the engine. That in itself is enough to tell me what kind of person you are.. I'm no expert, but maybe you'll get featured on the next bench torque for tool of the week. Just saying.

[@Monstero5o]

I guess you'd say the same about Bill Gates and other Billionaires who wear cheap clothes from K mart or Big W :L Live the poor mans life to be rich. Pipe down dickhead.

[@grecoconduris6716]

@@pannic11 I don't see why I can't comment on the owner? Give me a rational legitimate reason why I can't. If the video was clearly only about the engine, why did the owner need to be in the video? If I had of said something positive about some other aspect that wasn't engine related, would of you been upset about that? And save me your self righteous judgement on the person I am because I made some comments after some observations I made. Everyone judges and assess everyone constantly all day, everyday, its hard wired into us for survival. If you say you don't, you are lying. You've just taken issue with this because you either know this guy or you identify with him. If it was on some other topic you don't care for, you wouldn't of piped up. Tool of the week IMO goes to someone who likes to get offended on the internet. Anyway you need to settle down, lighten up and have a laugh.

[@terrya450]

superchargers are trash go with N2O

[@travischase78]

Terry Ambrogio you muppet

[@terrya450]

Travis Chase don't get mad that I can make the same power with a 500$ kit and a few hrs :P

[@speedlife301]

Nitrous is trash and unreliable