I have been trying to figure out what would be a very fast spooling turbo setup that can make power and pull to redline. The new GTX series turbos look very promising and then I saw that ATP has divided turbines for the 30 series turbos. Seems like this could make a nasty setup, and am intrested to see if anyone else has done this? I will be using the car for autox and some track racing.
Heres the links.
http://www.atpturbo.com/mm5/merchant...egory_Code=GTX


http://www.atpturbo.com/mm5/merchant...egory_Code=GTX

 

You lose power with a divided turbine unless its a gt40 and bigger its been tried mate, a normal gtx3076r would spool grate and could be knocking on 600whp

 

Thanks for the reply, I how bad is the power loss? I figure that it would only be up top in the high rpms. I have always really liked twinscroll turbo setups and wanted to use one, so would a 1.06AR be better than? How fast is the spool on a GTX3076R anyways I did some research and its hard to find info about that turbo I figured it would be around 3700 full boost.

 

There's no reason on a super efficient motor like f22/20 to do this. My jb divided truck turbo hits 14 psi at 5k rpm. I can get a few psi below 4k. Lj told me go big on a tubular divided setup or u don't gain the benefit.

 

From what i have seen a twin Gtx3582r 1.06ar made what you would exspect a Gtx3076r 82ar to make it was hart breaking twin mani is a good idear not turbo. 3700 full boost if you have a low boost setup ,on other cars the x range is spooling upto 700rpm quicker then the old gt's, im yet to see the difference on the s mate.

 

i am looking into this, i have a lovefab mini, with a gt3071r turbo.10:1 cc block. want to max it out in two weeks to see what hp i get. i might want to go full blow twin scroll set up with a gtx3076r 1.06

 

If you have lower comp then i would get the fullblown twin with the gtx3582r it should spool similar to the gt30 but high boost could see 700whp compaired to the 550whp the gtx3076r would see .Thats the street setup im heading for when i find a gtx3582r 1.06ar cheap .

 

A divided housing (twin scroll) turbo will spool much quicker than a comparably sized single port turbo on ANY engine with the only drawback being a slight decrease in the horsepower curve in the higher RPM range. I enjoy parables so allow me to share one of my own creation to help us better understand the concept of a twin scroll turbo. Being S2K owners I'm sure most of you have already lost your virginity so I hope you find empathy in this. Let us suppose we where hell-bent on DPing this awesome chic. Conventional knowledge tells us DPinc can be done two ways: A single turbine housing is akin to inserting two "dude pistons" into a single cavity and thrusting simultaneously. A twin scroll is like DPing la-exotica; entailing two "woopee sticks" inserted into alternate cavities and thrusting in sequence. Th latter type allows the chick !ERRRM! turbo.... to reach her climax,,, I mean spool quicker and make you well... happier sooner. Analogies explained: Chic = turbine housing and A/R ratio, Lap Rockets = volume of exhaust gas, and Thrusting pattern = exhaust gas pulsations at turbine inlet from cylinder ports. I'd personally love to see someone do a twin scroll on one of these motors. This setup would be perfect for AutoX where early spool or turbo lag could be the difference between a noob run and a victory lap. As long as you aren't shooting to get squeeze the very last bit of horsepower from your motor at the red-line a twin scroll could be a powerful ally on a track.

 

O my.

 

Maybe on euro cars w crappy flow, but on the S, at a certain point the twin scroll is a hindrance.