Garret GT 3071 R

[RS2 CQ]

Lol, hey Chris, good to see you here

2.0 Bar at 2800 RPM will only work with 7:1 compression ratio in a 20VT with 91 craptane from da west coast... so not many options there to get the power except for 100 octane

HTH,

Mihnea

This may be a lame question but.....can I change my compression ratio?

[maRS2]

For maRS2: a GT30R can't make 1.8 Bar at 2500 on an RS2 engine without surging like a mother****er, because none of these garretts was actually meant for a 2.2l 20vt engine. If you want boost lower down, you can get it with the RS2 turbo (1.7 Bar at 2600 RPM in 6th gear) but you need a completely free-flowing exhaust. Now I know the exhaust you have doesn't flow as good as it should, as we have already seen the amount of backpressure you had with that restrictor in it, that made the engine boost at 2.5 bar and more....


HTH,

Mihnea

Yes your right about the back pressure I had in my exhaust I was realy disapointed of the work michel did on that exhaust
specialy this stupid restriction that was only making huge back pressure(less free flowing than original) and not making it more quiet.
Also keeping the down pipe original and cutting so that I cannot come back to original exhaust if I need to. It suck

I now have remove all restriction and also made a real 3" down pipe the car is much nicer now.

Some day you have to remap it again as think the car the quite different from what the map was set up for, but I will wait to get my front IM and may be new Turbo.

[NoNonsense]

This may be a lame question but.....can I change my compression ratio?

Sure you can change your compression ratio, but it's not a simple task...you must either have new forged pistons milled out, or grind yours down. But, if you don't know what you are doing, grinding them yourself would be the last option. Perhaps Mihnea could suggest a good piston spec for you (and everyone else out there that desires forged pistons!)...

[Jamo]

Funny how opinions change and this is now the turbo of choice for S2 modders!

[Krists]

Funny how opinions change and this is now the turbo of choice for S2 modders!

Your forgott the URS4 camp


1.4BAR top only

[trondsen]

With what kind of turbo Krists?

3071 / Ar 63 / 82??

[Faheemo]

Some Good numbers ther Krists...
What cams are you running ?

[S4turbo]

Krists,

can you give more information about mods, cams, and explain what the two different curves come from? I really like the numbers!

Regards, Johan

[donce]

how about this? does it surge a lot too ? http://www.034motorsport.com/product...products_id=75

@porkkis: you can say whatever you want, IMHO KKK turbos are very good for our cars. The RS2 turbo is the only turbo that I know of that doesn't surge like a MoFo when pushed to 2 bar at 2800 RPM. Find me a garrett that doesn't surge like that and I'll agree with you.

Mihnea