Turbo Advice
Turbo Advice Looks like I am picking up a GT4202R Garrett Turbo, 74mm with a 1.44 split housing. I've been reading alot of this and that on these turbos and was wondering what everyone here thinks, basically it will be going on a stock head cam only 98 LS1, the one in my sig, It'll be a truck manifold build and I don't plan on running too much boost, under 10lbs, speed density of course and maybe E85 as well. My cam is a Lunati VooDoo 222/228 .567"/.567" on a 113LSA and a 109CL, the car has every bolt on you can put on, i.e. ported FAST 90, EWP, etc.
I've heard these turbos will choke unless you go twins, which I'm not doing. Future plans will consist of a forged 347 with some ported 317's, in the far future.
I've also heard that the 1.44 A/R divided housing will work well with the LS1's
Can anyone give me some insight??
I've heard these turbos will choke unless you go twins, which I'm not doing. Future plans will consist of a forged 347 with some ported 317's, in the far future.
I've also heard that the 1.44 A/R divided housing will work well with the LS1's
Can anyone give me some insight??
Anyone else???
Staging Lane
Joined: Mar 2009
Posts: 85
Likes: 0
From: White Bear Lake
With a 347ci you will be fine using the 1.44 turbine side. If you were closer to the 370ci area the turbine would start to be too small and you would see higher backpressure. 600whp will be no problem for you.
