The DD I use flat out reads lower than the ones some of you guys use.

OP, take it to the track. If it traps 112mph, you have a fast car.

 

OE turbo is small, it spools up really fast creating a lot of torque at low RPMs but it falls on its face after 6000. Boost drop is about 6-7psi, I tried to run a forge actuator and brought the drop to 4psi but it is still a dull turbo on top end. And thats what tells me its not efficient at high boost because it was designed for response, not top end.. I have quite a lot experience with a variety of turbos, trust me; before you try something new, the old setup always feels fast. This is the general rule

And for those who run 30psi on the OE turbos;

get ready to buy a new one in the next 20,000 miles as it wont bare that mechanical stress for too long.

 

I checked into it. my tuner said "SAE correction. Usually 18-20% depending on the conditions that day."

My dyno sheet reads "CF:SAE Smoothing:3

I don't know much about that, so chime in.

Either way car feels great, but ready for more!

I won't launch the car until funds for new clutch are secured, so drag strip is not on the horizon. I am sure DDing is killing the clutch allready. TRQ ftw.

 

Those numbers are normal for a typical dynojet.

 

That's what I figured. That 18-20% SAE correction factor is designed for NA cars and does not apply to forced induction cars.

The correction factor for 20psi of boost should be roughly half the SAE correction factor. I ran the calcs a little bit ago but I don't feel like doing them again. The correction factor depends on boost level.

Anyways, so with the SAE correction factor, it says ~360whp. So you actually put down about 300whp. Correcting to see level with half the correction factor of SAE puts you at roughly 330whp.

 

sounds like they have a preset value.. no idea what it is

Never launch your EVO unless you have a spare transfer case laying around..if clutch holds & tires hook, stress is on the transfer case & axles..

 

I am planning on upgrading my turbo soon for sure. I don't want to run the stocker at 30psi for too long. I just wanted to see what it could do. Even with E-85 the stock turbo still doesn't feel great up top, still feels lame.