So I have this friend with a really nice clean evo9. He's got some basic mods and a few weeks back I helped him install a fuel pump, stainless steal o2 housing, ported exhaust manifold, and ported his turbine housing for him while we had it off the car. A evo9 with MBC, exhaust, and tune should make about 290whp @ DB Performance. With his mods, he should hit right around 315whp. Well, the day I dyno'd my car (432whp woot!) he was on the rollers before me, and when I showed up for my appointment I helped troubleshoot what might be the problem with is car. It was running fantastic, except it was way down on power, about 270whp. We did a ton of tests, and the only thing we could find wrong was the throttle body seals were leaking slightly. VERY SLIGHTLY. Well, he replaced the TB with a ported and rebuilt unit, and went back. 270whp, no change. So, they decided to do a leakdown test at a later date.
He's from Rochester, and this time, he was out of gas when he got close, so he filled up on BP 93. The previous two times, he was on quik trip premium (92 or 93, not sure). Here's the before/after results:
BP 93 FTW! I love the stuff, my car made 388whp with it alone. I don't want to know what it would do on this other crap
Here's the full info/modlist/story:
http://www.evomn.net/forums/viewtopic.php?t=4247
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