Thread: GTX turbos

Gtx2871r

+1

all things considered,your right,you wont get much more pereformance btween t3 and t4 twinscroll (same a/r).what you have to ask yourself is,am i ever going to want more???you didnt think you did before,and look where you are now.the way i look at it,is if you want the the best turbo tech out now,get an efr.i believe(with no proof) the efr will spool sooner(50% lighter exhaust wheel)and make a good bit more power than a comparable sized gtx.just food for thought man,but a gtx in t3 twin scroll 1.06 ar would be kickass aswell!!!

Nah, the T3 will support 700+whp. Just not a TS turbo because they don't really make them that big. I could port the 1.06 housing, then extrude hone and make up to the turbo's rated output. But why?

Anyone who knows me, knows I've been after the 500whp mark for years. Always wanted to make 400whp daily, and 500whp on race gas when pushed. But through extensive trials and errors, the car is just insanely responsive but refuses to make over 475whp. Power is dropping off, and perhaps it is the way the setup is designed. Big boost doesn't favor the large overlap SR16 cams, nor does the added backpressure help the situation.

So a larger turbine is the obvious choice, but I've always wanted to do something different. How many FWD sr20 you see out there with Twin Scroll? How many are using a VVL and TS? I like to do things a little differently because it seems more fulfilling to do something and make it your own. But the 60mm turbine will not reach my goals unfortunately. Perhaps if they had more turbine options...

So the obvious choice would be the one step larger GT35r, which still hasn't been done much, but why not try something NEW and refreshing? I'm digging the new compressor maps for the GTX turbos, and I think I can make the gT35r spool really well, something that others have tried. But there are few GT35r-based cars out there that respond like a GT2871r.

I'm not saying that'll be the case. But my GT3076r spools faster than the other local GT2871r cars around here, and only 1-200rpm slower than the disco potato cars. After 4000rpm all hell breaks loose. and by 6000rpm the car is still building power.

I'm really excited to see what the GTX will do. If the turbo is anything like the HTA turbos, it will spool very close to the GT30r and make a lot more power.

Other guys around here are making 400whp on 16psi. I feel like I could possibly do the same on the same boost pressure, but have a broader powerband. That's the hope anyway. 22psi making over 500whp? Maybe it will happen?

If not, at least I'll have the only SR20VE+T Twin Scroll GTX powered car. With 6 gears.

not this Disco potato