wOw. WoW. holy CRAP i love EVO IX. forget about the crappy mitsu serive (just made a whining thread on it), the Evo IX's just too crazy for my blood.

 

While we're on topic about claimed factory horsepower ratings, did anyone catch the article one of the big car mags, not sure if it was MT or Automobile, but there are new guidelines for 2006 for claimed HP. Guess what?

Toyota's car's were overrated.
Acura's car's were overrated.

GM's cars were UNDERRATED of course!

 

you are supposed to break in the other way. rev like crazy for the first 20 miles. Then you take it easy till 1k. that first abuse will make the piston rings expand to the wall and seated perfectly tight. if you didn't do this, you missed your chance to seal it perfect. after 100 miles, rings will set in loose manner and they won't be any tighter.

 

That's hella NOT properly broken-in. Who made you think you shouldn't go above 3500rpm. That's the opposite of what you're supposed to do. You HAVE to go above 3500rpm and get into the boost so that the rings seal. If you didn't go over 3500rpm, then you never boosted. The Mitsu manual says not to go above 5000rpm, not 3500rpm.

 

And thats the truth!

 

i guess i understand why he thought that was a good idea. hopefully everything will end up alright on his car anyway.

also dont forget all u evo IX owners, when u feel the need to change that gorgeous turbo, please PM me. thanks!

 

A peak hold gauge would definitely or one of those boost gauges with the playback feature.

 

My stock Evo 8 dynoed at 277WHP with a hard brake in.....first 100 miles ...
Every car is different, and there are many variables...assembly, break-in, quality control...etc.

 

Evo9 sounds a lot louder exhaust than the 8.... true?

 

Where in CT did you dyno your car and what dyno did they use? Thanks!

 

Pruven - Dynojet. That guy's car also dyno'd lower than his claimed 277whp on a later date even after getting dyno tuned, so it's kinda weird...

 

Slightly off topic... has anyone put an Evo IX head on a flowbench and done an apples to apples comparison of the flow characteristics with the Evo 8 cylinder head? I suspect the head design and casting quality of the Evo IX head are provide for better flow.

 

lol I'm glad i bloosted during my breakin. I managed to get it up to 5k most everytime I drove it and couldn't believe the pull it had in that short rpm band.

 

My neighbors 06 evo put down 264 horsepower on the AMS dyno. After a TBE, KN filter and a half pound of extra boost it was around 290 horsepower. These cars are beasts!

 

The power output was indeed changed on the '04 and '05s. Those years have larger injectors (same injectors as in Mopar S1) and different calibration for the computer. Their dyno results are consistently stronger than the '03s. The '04/'05s still tend to hover at or slightly above (at the wheels) what the car is rated at on paper.

P.S. Congrats to IX owners, very very impressive.