compound charging

[kengvang]

I was just woundering why no one has tried to come up with a compound charging system for our car? Can't we run larger turbos and feed it into the pes g2 supercharger system for the 2.8l? This idea was stuck in my head for a few days and i did some looking around and thought this might be possible. Found a link to a kit that makes big power with a set up like this. Let me know what you guys think about this idea.

http://www.hotrod.com/techarticles/e...its/index.html
http://www.europeancarweb.com/featur...ear04_zoom.jpg
http://www.robsaudiworld.com/G2_installed.jpg

[skinnytirez]

I have enough trouble keeping the car running with only turbo issues to deal with....
That being said hot dam! that would be cool...
make it happen!

[Capt. Obvious]

You can make more power that is more reliable, that weighs less, and costs WAY less with just turbos.

Not that there's anything wrong with doing something ridiculous like that, it's just more of a "hey, look at what I can do!" thing than a real performance thing.

[derek072887]

i want to know who makes that supercharger kit!!!!!

[jwk2w]

I've been thinking about this for a while now. I just don't have the money to pull it off.
Vast 800hp or 1000hp kit with a supercharger to go along with it. You might no even have any turbo lag with that set up.

[kengvang]

yeah, i was thinking the same thing. go with big turbos and use the supercharger to help spool and compound the boost so less boost pressure is needed to make the same horse power.

[kengvang]

i want to know who makes that supercharger kit!!!!!

what, the PES G2 Supercharger for the 2.8 a4?

[TighTT]

Looks like it would be a plumbing nightmare in an already tight engine compartment.

[kengvang]

Well since this is just an idea, would putting on the supercharger on a k03 or k04 car make more or equal power with compound boosting? you can run the turbos at like 15-20 psi then into the supercharger to compound it to 22-27psi. this setup can also use water/meth injection too.

[kengvang]

Looks like it would be a plumbing nightmare in an already tight engine compartment.

might have to run a stand alone engine control managment to run two intakes (one into the each turbo) then from the turbos to a (2 inlet to 1 outlet) frontmount intercooler then from there up to the supercharger. That doesn't sound like a lot of piping to me.

[Vinchenzo51]

just buy this and buy my Cobra and your need for compound boost is filled



1000+ HP on stock block, enjoy



note, 4 people in the car to keep it stable on the dyno

[TighTT]

might have to run a stand alone engine control managment to run two intakes (one into the each turbo) then from the turbos to a (2 inlet to 1 outlet) frontmount intercooler then from there up to the supercharger. That doesn't sound like a lot of piping to me.

Um....OK.

[Sales@RAI]

LOL... It's called nitrous, and you don't have to run 80 feet of charge pipes, and you dont need a twin intake standalone system

[veggiemonster]

please look up turbo efficiencies, and then look up the roots/screw efficiency. then rethink it.

[wdbdy2000s4]

This is a terrible idea. If you're going to do it then make the supercharger feed a large turbo.

The PES unit sucks btw. You're much better off just running a large T4 twin scroll single with an HTA wheel.

[wdbdy2000s4]

LOL... It's called nitrous, and you don't have to run 80 feet of charge pipes, and you dont need a twin intake standalone system

That's the spirit!! I wish more b5 guys used spray, it's a fuckton cheaper then quadruple turbo setups with 10 gas tanks, 4 meth pumps and an RS4 top end.

[kengvang]

please look up turbo efficiencies, and then look up the roots/screw efficiency. then rethink it.

just buy this and buy my Cobra and your need for compound boost is filled



1000+ HP on stock block, enjoy



note, 4 people in the car to keep it stable on the dyno

seems this type of setup works pretty good to me! Yeah i know the PES system sucks ass, but to use the intake manifold setup and a screw type blower could be better. like i said, just a thought; trying to think outside the box.

[Outkasted]

Thought about this idea also. There is a maf splitter you can buy to run two intakes of the turbos, feed those to a twin entry single out front mount intercooler and then to the pes supercharger. The plumbing wouldn't be too bad but who has the cash to try an idea they thought of reading another unrelated car magazine.

[groovetek]

I had a G2 on my 2.8; was great fun.

Anyway, if you managed to fit it on; and it is 100% possible, it would greatly reduce the spooling time of the turbos. I wouldn't be surprised if RS6's hit max boost at 2500rpm with the aid of the G2.

Still, you simply wouldn't do it; it will hardly benefit peak power, but simply reduce spool time. Doesn't seem worth it.

[DESPOT D S4]

pes tuning is a very good reputable company i have yet to hear anything negative

[kengvang]

pes tuning is a very good reputable company i have yet to hear anything negative

i didn't mean any dis-respect, but it would have been better using a screw type charger instead of the m62 roots style. the screw style has a better eff range and less use of crank power.

[kengvang]

I had a G2 on my 2.8; was great fun.

Anyway, if you managed to fit it on; and it is 100% possible, it would greatly reduce the spooling time of the turbos. I wouldn't be surprised if RS6's hit max boost at 2500rpm with the aid of the G2.

Still, you simply wouldn't do it; it will hardly benefit peak power, but simply reduce spool time. Doesn't seem worth it.

well, think about it, you can get full boost sooner and run the turbos at less boost. this would help turbos last longer and still have all the fun right?

[pohsib]

In Japanese but its a Twin-Charged Nissan GT-R. 2 stock turbos feed 2 Rotrex Superchargers.

[kengvang]

In Japanese but its a Twin-Charged Nissan GT-R. 2 stock turbos feed 2 Rotrex Superchargers.

yeah i've known about this setup for the gt-r. Those are centrifical style superchargers and needs to "ramp up" to make power. Those are just belt powered turbo's whichs works better when the rpms are up, but with the roots/ screw type chargers, you get that "almost" instant power at very low rpms.

[Rated S]

pes tuning is a very good reputable company i have yet to hear anything negative

PES has been known to blow up blocks and not offer good customer support. Look at the B6 3.0 forums, and some B6 S4s.