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Originally Posted by CRAIG
So your saying someone could run 30+ psi on stock headbolts and be ok as long as its on a good tune? I agree with the headgasket not having to be anything more than a stock Mitsu since its just like a fuse in my opinion. But not having headbolts? Don't know about that one.
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Yes, go search on another board about the strength of stock head bolts. 30+psi has and is being run by people with stock 6-bolt head bolts. The 7-bolt ones are 1mm smaller and torque to yield, so they are much weaker and can't handle as much, but people regularly run in the high 20s with them also. Been there done that. I think 1VicousGSx also ran his stocker 7-bolt head bolts into the mid/high 20s.
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Originally Posted by howslowcanyougo
According to this same thread, it looks like 4 lbs more per minute on the Evo3, is 40 + 25 for the new FMIC install = 65 HP gain!
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Don't expect a huge gain. A FMIC will allow you to run higher boost, which equals more HP. At the same boost level, putting a FMIC on probably won't gain you 25whp, unless you were pushing the old sidemount past the edge of safety and knocking alot. And yes the EVO 3 16G does flow more air, but you will probably have to run more boost to get more of that air. For example, if it flows 4 lbs/min more, then if you run at only 18psi you might only see a gain of 1-2 lb/min over a Big 16G. The guys making alot of power out the EVO 16Gs are running high high boost and it can hold medium high boost longer than the olders 16G could maintain it. The EVO 16G is a great turbo though, it kicks the ass of some of the smaller GT turbos that some of the tooners vendors tried to hype up last year.
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Originally Posted by Carlos
Alpine got ~319hp to the wheels last year on his with a FMIC and dyno tuning on race gas. I wouldn't expect that out of your car as it is an auto. You would have to be the second person who made 400hp on an evo 16g to get ~320 to the wheels.
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~320 to the wheels on with an auto on race gas is probably possible with the EVO 16G and a good supporting cast. 319whp is a low number for even a normal 16G on race gas. I have had cars make close to 300whp on pump gas with the older Big 16Gs and a good setup. And 335+whp on race gas and moderate boost is common on the older small and big 16Gs. It is so rare around here though to see a 16G with a good setup and have the owner want to try to push it on race that I don't know what they are really capable of. Most of the guys who were pushing the 16Gs hard, have moved onto big turbo setups and it seems like everyone around here wants to start out with a 61mm turbo nowdays, even if they don't have a single part to support it.