single turbos as responsive as twin turbos

**cobrAA** · 10-18-2011, 10:06 AM

Does it exist?! is it possible to find a single setup as responsive as a twin gtss setup that can produce 600-700hp at the wheel ?

I feek like my setup is pretty maxed out and my only option would be nos.

**GTR-Dad** · 10-18-2011, 10:14 AM

I have not done this, but from what I understand of turbo design you're always trading off peak airflow with responsiveness. A well chosen single can be as responsive as twins that can flow the same air, but if you want to get the best of both worlds you need to get a bit fancier.
Read up on twin scroll technology. You'd need the right exhaust manifold to take advantage of this, but you could expect better response than from a constant pressure system.

**frankiman** · 10-18-2011, 10:36 AM

you haven't maxed out your setup at all yet, turn up the boost to at least 22-23 psi

**cobrAA** · 10-18-2011, 11:58 AM

Originally Posted by frankiman

you haven't maxed out your setup at all yet, turn up the boost to at least 22-23 psi

I'm already at 21 lol... it's not 1 psi that will change the world.

I doubt I will ever be able to reach more than 550whp with this setup.

**Dragon Humper** · 10-18-2011, 01:18 PM

Just keep cranking it up untill to see the intake temps start to spike. If they have been pretty steady up to this point then it will be easy to see when the compressors are truely out of breath. Once they start to climb rapidly back off about 2 psi and you are at the top of the comfort zone for your compressors, turbines and system as a whole. What can change though with more bolt ons is the VE of the entire system and can stretch out your power a bit at the psi your turbos are maxed out at.

Truely big power twins are laggy as hell, it's much better and cheaper to go single up to 1000hp (I am at full boost at 4500rpm). After that you need to go twins.

Jon.

**cobrAA** · 10-18-2011, 01:37 PM

I will try to look at my graph if I can find it back but I getting a kick at 2.5.. and a very nice kick at 4k.

I would say I'm full boost around 4k easily.

thanks for the extra info. I'm expecting to go hit 25psi but still I don't expect a massive gain here.

**GTR-Dad** · 10-18-2011, 01:55 PM

Originally Posted by cobrAA

I'm already at 21 lol... it's not 1 psi that will change the world.

I doubt I will ever be able to reach more than 550whp with this setup.

I'd work on de-bottlenecking the air flow before changing turbo charger. Efficiency>Boost.

**cobrAA** · 10-18-2011, 04:21 PM

Originally Posted by GTR-Dad

I'd work on de-bottlenecking the air flow before changing turbo charger. Efficiency>Boost.

for this, you gotta know someone you have confidence in.

**GTR-Dad** · 10-18-2011, 06:41 PM

Originally Posted by cobrAA

that can produce 600-700hp at the wheel ?

For THIS you need to know someone you have confidence in!

d

**gtrjon** · 10-18-2011, 11:17 PM

Originally Posted by cobrAA

for this, you gotta know someone you have confidence in.

hes not talking about porting specifically hes talking about exhaust, intake + hard piping kit, cam gears, properly chosen cams, basically everything that will allow your motor to breathe and flow more. if you need someone you have confidence in to achieve this you prob should do some more research.