Thread: Turbo Charts And Best Turbos For Your Needs

me too. The GTX turbos are sweet.

I answered my own question.
I now see why at ~440BHP you want the 48trim compressor.

my friend is selling a GT2860RS that i might buy, but i a canadian brand named MOU...anyone know about this brand, is it good? is it good to use on a 20VE?? any info will help!

so interms of awd setups what would be the turbo of choice to net 450awhp i am at 377 right now 23psi on a gt3076r but am using a protech log manifold do u guys think i could make 450awhp only think i am doing is porting the head or its a gti-r sr20det

Step up to a GT35R.

What are all the mods you have right now and what engine

its a gti-r engine
bored to 86.5 cp piston
jwt s3m cams and jwt adjustable gears
750cc rc top feed injectors
protech log manifold and custom 3inch dp
aem series 2 with msd6al & hvac coil
head is being fully ported and fitted with bc springs & retainers and supertech 1mm oversize intake and exhaust valves and supertech valves seals
spec alum flywheel and spec clutch & pplate
coolingmist cmgs wat\meth kit

so would the gt35r be a better choice than the gt3076r

The GT35R is always a better choice than the 3076r unless you just want 450whp. A GT3071r is only really good to 400whp max, and that is pushing it. Likewise with the GT3076r at 500whp.

With your injectors you will max out the potential around 24psi boost with the GT35r. It should make around 500-520whp.

The GT3076r is a great turbo around the 450whp range, but the 35r will feel best around the 550whp range. Anything more than that and the turbo begins to redline, and reliability will be stressed.

Your cams seem to be matched better for the 76r though.

Im goin threw another change this winter so heres my plan chime in if i should go bigger inj like 720's to play it safe or run my currant sti's at 4bar . My goals are 350'ish .
Also how will my power band look as i love the currant feel of the disco. Im expecting a bit more lag wich is why I might go higher comp pistons .

-Ve motor 86mm forged 8.5.1 or 9.1 forged slugs ?
- gt2871r
-sr16 cams
-sti inj @ 4bar or 720 @ 3bar .. already have sti's
-blue bird manifold extrude honed and 38mm tial gated . (Already have )

Again its going to be a long winter so let me know your opinions .

ok i hear that but am i ok trying to put out that power on a log manifold given that i have more drivetrain losses than a fwd

9:1 is great, but I'm not a big fan of the 2871r. I've seen it perform well on a lot of setups but it really could use the full un-trimmed T30 turbine wheel. Otherwise you get a bit more lag from it than similarly sized turbos.

If you wanted more power I would look at perhaps the new GTX versions of the disco potato. They are not cheap, but they should perform very well. The disco is a beast of a turbo and my vote for best street performer for 300whp. The 2871r can make more, but it just doesn't feel the same. My GT3076R spooled very similarly to the GT2871r, though it was twinscroll.

If 350whp is your goal, then the 2871r will get you there, and higher compression will help as well.

Going T3 with the GT3071r is a great option as well, but you may be able to find the .86ar bored for the full T30 60mm turbine, and that would be the simplest way to go. You basically get the GT3071r with a T2 flange. Just keep it .86, the smaller T2 housings have little to offer.