errdisab1e

iTrader: (2)

On a stock Evo X block and GSR transmission, I've read/heard suggestions that the "safe" limit should be no more than 400whp / 360wftlb. What I'd like to know, which dyno is that based on (mustang, dynapack, dynojet) and on which pump gas (91/93)?

I couldn't find a thread that covers this via search/google. Please link me if it already exists.

Thank you

FastAttack

iTrader: (5)

eh no..

HP number is above 500.. tq above 400 kills stock blocks , tq kills our block not the HP.

Second is that the number is an avg amongst all of the our brave testers that have pushed the block beyond its limits , this of course is a multitidue of different dyno's and even virtual dyno's.

91/93 octane well again it depends on the tuner , conditions , etc. But most would agree the numbers on 91 are limited to how much boost you can run , as they can get knock at earlier power levels due to the **** poor gas.

Again, the numbers are just well, numbers, I honestly would not be looking at what peak hp/tq I can make , but what power level my tuner recommends based on the dyno he/she will be using.

Just food for thought.

ugakirk

iTrader: (14)

Well, like ^^ said, you can get up to high HP as long as you keep the torque fairly low. A lot of guys are running like 460/360 and have no issues. Once you start getting in the 370-380 wtq range, it's getting a little risky- it may still be perfectly safe.. but you are def running a lot higher risk. People have done it though, although some blow at 320 too..

It really just has to do with how good of a tuner you have.

Johnr352

iTrader: (18)

I think you have to do more research on this as there are a ton of threads that discuss HP and TQ limits. uga has it right though, it is highly dependent on the tuner, how the car is driven etc. I have heard of cars popping with low numbers like 360-375 tq and then others doing considerably better, all on stock internals.

You ask about the transmission too. The tranny is pretty stout and can hold quite a bit of power though seems to struggle with anything over 8500-9000 rpm.

Kracka

iTrader: (49)

Daily-driven, 51k miles, stock clutch



These cars are very stout if you treat them right.

errdisab1e

iTrader: (2)

Thanks guys for the info, clarification and real world reference.. great graph Kracka

TheBlade

iTrader: (1)

If you look under builds you can see his entire build with exact parts (and parts he's tested and moved on without).

Kracka

iTrader: (49)

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

Thatotherguy

How long have you had the ef2.5 on your car?

Kracka

iTrader: (49)

EF2.5 has been on for roughly 2k miles so far, but more than half the miles on the car have been with an aftermarket turbo making 400+ WHP.

GsrJake

iTrader: (4)

I know I few people running e85 stuck turbo makin 400whtq+ on 29 psi

Robevo RS

iTrader: (16)

My transmission got a lots of abuse since 2008. And still running strong so as the ACD and the front of the car.
The rods are weak not the block.

TheBlade

iTrader: (1)

This is my impression of what OE rods and rod-bolts are made of

candymanjl

Ha ha, that's funny.

Good info guys!

Who has a good rep as far as mail order tunes these days? I'm just looking for something simple to start, intake and tune.

Kracka

iTrader: (49)

Bakaunchi and Razorlab are just about the only E-tuners that I would trust with my personal car. They aren't mail-order though, you'll email them logs and they'll email you back tunes. The days of actually mailing your ECU somewhere to get bench-flashed are loooooooong gone.