Quote:
Originally Posted by evopirate
Tranny/motor mounts/engine damper
upgraded BOV (mine is not holding boost, leaks before WOT)
L/U ICP (BR most likely)
Thermostat
Cams - can't decide between JUN 272 or 280's
upgraded valve springs, retainers
injectors
meth????? really not sure on this one...but a lot of people seem to recomend it.
turbo - probably 20G....might want to go a slight bit bigger, just for more top end
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For good shift quality I'd replace at least the front mount. I've also replaced my shifter cable/mount bushings to the metal ones and it took a bit of slop out of my shifter.
It sounds as if your current boost pressure might be too much for your stock valve to handle. Time to upgrade, at least for the track days.
Lower IC pipe does help a little with spool but the upper pipe hasn't been shown to net any gains other than looking pretty! However, common sense would indicate that a metal pipe does not expand under high boost like a piece of rubber tube will. So let your budget determine if you need the upper pipe.
If your thermostat is malfunctioning then I would recommend changing it. However if you want better cooling efficiency you need a better radiator, not a new thermostat.
Cams....as already stated the Jun's are very excessive for your current mod level. AMS has said themselves that they are a PITA to tune with the stock ECU and will not net you any significant gains over the HKS/GSC/BC cams with your stock turbo.
You shouldn't need to upgrade your springs/retainers unless you plan on going with a huge lift cam like 280's and plan on reving it higher than the stock rev limit.
Injectors won't be needed until you upgrade your turbo. If you go with the 20G I would recommend to increase to 680's or maybe even 720's if you also do meth.
Meth...can't say much about it other than it seems to do a great job of simulating race fuel without the high cost of race fuel.
Turbo...depending how much "top-end" you are wanting you can check out the numbers on the 20G-LT, FP Green or 50 trim. The higher you go the later the torque curve but the more you gain on the top end. If all you are doing is SCCA or short track racing I suggest you stay in the 20G size range.
