I got my evo with 5 miles and from 5-300 miles the car was running perfecty and now it has like 420 and its acting weird, its going slower than normal it feels heavy, it feels like the turbo is not active, i dont know, is because its not fully broken in and i need to wait a few more miles or should i take it to the dealer.

 

1) you got a bad load of gas and your timing is retarded for knock control
2) Florida summer heat
3) you are getting used to the power
4) All of the above

 

it could be 2 or 3. cuz i only put 93 , also wats know control, sorry but ive never heard of it

 

what he meant was, if you put in wrong rated octane it is more prone to detonating(exploding) in the engine earlier than its suppose to causing the car to knock (aka ping), the computer then retards(takes away) timing a couple of degrees to prevent the engine from knocking, thus making it drive less powerfully...something along those lines

...someone correct me if I am wrong, i'm not an expert..

 

interesting, does this go away over time because i was racing a civic si and he was actually keeping up which is embarresing .

 

Well...say ifyou got another tank of gas...93 octane...if it was a good batch this time....as for the heat?...eh yeah

 

it was the heat, i let it cool down for like 6 hours i drove it, and the EVO was back .

 

Unless you put crappy gas in your car and were knocking like crazy there is no excuse for a civic si keeping up with you. No offense, but it's most likely your driving. Even with the hesitating issues that the car has stock from running so rich it will still spank a civic si with ease. That car is a POS compared to the evo... either way go get the dealer reflash and put in a high flow filter element, preferably the works filter. Your evo will pull like a mad man after that.

 

Yeah the Si runs 6.9 to 60, you should have lapped him twice, try the reflash and suggested octane which is 92 I believe???

 

turbo cars run great at night..that's for sure.

 

I enjoy driving at night the most!

 

Blacktrack said, after 2 laps around the track, the stock intercool starts to heat soaked. Glad it was just heat issue and not some bigger problems.

 

I'm surprized Mitsu doesn't have the water gun thing for the intercooler like Subaru

 

Subarus have far worse heat soak issues than the evo because of using the top mount intercooler. I had an STi for 4 years and after even one pull from 20-100 mph and coming back to a stop to do it again, the car was so heat soaked I swear it lost like 40+ hp. Put it this way, my friend has an evo 9 and we were doing back to back races and on the first run we were neck and neck, on the second he beat me by a car and a half, and by the third and every subsequent run he beat me by almost 3 cars.

After a cool down for 45 min with the hood up and constant spraying of the intercooler water jet we were back to neck and neck, but only for the first run. The water sprayer doesn't help much at all. Granted the evo will still heat soak but only a little bit, but if you say that after the day cooled down your car ran great again than I would say that the IC was probably heat soaked a bit, but that the problem has more to do with the ambient temp than heat soak.

Although I guess hot ambient temps coupled with a high boost motor will exacerbate heat soak a bit, but either way that civic si should not have been able to stay with you. Again no offense, but I question your driving. If you are granny shifting then any car can lose to an otherwise slower car, that's the only thing that I can think of. Either that or you are not taking the car up to redline like you need to if you are racing, but then again you said that you aren;t even broken in yet so what are you doing racing people anyway?

 

I don't think you'd even need to be anywhere close to the redline to smoke an Si.