Hi everyone, I am interested in purchasing an Evo X GSR in the future. Please forgive me, if this is in the wrong section (mods feel free to move) but I have a few tuning related questions for you experts over here in the tech section. If this information is available all over the site, please send me in the right direction.

EVO X 4B11 Only-

1. What is the max power the stock turbo can make on pump 93 octance?
2. What is the max power the stock turbo can make on E85?
3. What is the max power the stock turbo can make on race gas (100)?
4. How much power will the stock internals handle?
5. How much power will the stock tranny / clutch handle?
6. What does is it take to make 400 WHP?
7. What does it take to make 450 WHP?
8. How tall are the gears in the GSR tranny? (What speed is the shift from 1st to 2nd and at what RPM are you idling at 80 MPH)?
9. Does the stock exhaust drone a lot at cruising speed?

I would like honest and consistent answers... remain on the conservative side with your answers.

Thanks ahead for your help.

For reference, I owned a 2007 335i previously where making over 430 WHP was actually quite easy... It only required a few bolt ons, tune and a meth kit.

 

full bolt ons tune cams possible ported head fuel system and meth i made 429 on pump with aggressive tune i made 409

 

I'll tell you one thing, if you want to remain conserative stock turbo won't get you to 430whp.

 

Made 405 with the mods in my sig on Cbrd's mustang dyno

 

Transfer case starts to get unhappy ~450 whp. Stock exhaust doesn't drone at all. Even my akrapovic exhaust doesn't drone on the highway. If you're at the factory redline first is a bit over 40 and second is a bit over 60. and i think 80 mph in 5th is around 3700 rpm.

If you really want 400 whp get full bolt ons and throw an FP green on it. I'd upgrade the internals too just to be safe. I made 400 whp on 93 and 450 on e85. If you switch to the corn you'll need to swap fuel pumps.

 

full bolt ons, e85 and bbx lite and you'll see 420whp easily. the stock block doest like anything over 400wtq.

 

https://www.evolutionm.net/forums/al...er-gheyer.html

My project thread will guide you through exactly what's needed to hit 350 then 400whp.

 

full bolt-ons will net you 350 on average. you'll get 400 with a fp red + cams, don't even need meth.

 

Or have stock-like spool with an EF2 + stock cams and make 411 like me

 

^^This

 

Dyno numbers will vary depending on the dyno. All my numbers are based of off GST's mustang dyno which is a very low reading dyno.

1. What is the max power the stock turbo can make on pump 93 octance? Not sure as I went straight to E85 at 500 miles.

2. What is the max power the stock turbo can make on E85? My turbo was pretty maxed at 350 WHP. We might have been able to pull more but it was not worth the money.

3. What is the max power the stock turbo can make on race gas (100)? No idea. But less than E85.

4. How much power will the stock internals handle? The general concensous is keep the TQ under 400. I ran around at 450 whp with a T3 kit running a 6262 before I built my engine. My TQ was only in the 330 range. I put 20K on my engine and it had great compression numbers before my rebuild.

5. How much power will the stock tranny / clutch handle? My clutch was shot with the stock power. A couple of launches was all it took. My tranny has been fine. Not sure what the limit is. depends on the power and how often you launch it.

6. What does is it take to make 400 WHP? As stated above at least a FP green or comprable turbo.

7. What does it take to make 450 WHP? FP Red with E85 or T3 kit with pump.

8. How tall are the gears in the GSR tranny? (What speed is the shift from 1st to 2nd and at what RPM are you idling at 80 MPH)? I dont really pay attention. I think I am around 3.8K to 4K at 80 mph. I have found I dont mind it at all and its well worth the extra strenght in the tranny.

9. Does the stock exhaust drone a lot at cruising speed? I dont remember what the stock exhaust sounds like lol.

 

you got the 93oct goods though, i only have 91 here