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^ says the guy that melted a piston with craptastic 680's ;) ( i know the circumstance were different, just busting balls!) you are going to have to pull a LOT of fuel with 680+ injectors with out a larger turbo and other mods. Pulling fuel = ++ timing = BOOM! on a stock ecu. Your line of...

bypass it. if the issues go away...

my 550's give me quite a bit more fuel then i need with my current setup. scaling something bigger with a piggy back is going to get hairy if your not on top of things. besides, if you need something bigger later, there is always someone willing to buyt the 550's for a decent price.

^ ? is your car idling up or bogging?

thought id move it over for future reference. I totally missed that other thread when looking for something GL5/4 specific

I just changed the trans fluid to the cheap 80w-90 supertech as a "flush" for the next few hundred miles. RL MT90 up next. I didnt pay attention to the GL specification on it but the tsrm says either is ok for the trans... What im hearing through the grapevine is GL5 is the devils urine...

get one that datalogs with rpms. Dynojet commander or zextronic come to mind. (the zextronics has quite a large add on capability for future tuning needs)

* UPDATE * Replaced the radiator cap and all of those small overflow lines and zip tied them as well. Old cap wouldnt hold pressure past 7-8psi. New one is solid until 15psi. Overflow doesnt rise even an inch now and pulls it all back in like it should. ill keep an eye on it over the next...

Its not so much lean, rather high ignition advances when the ecu things the egr is operating.

or blowby which is normal to an extent. mY stock gauge read very similar numbers to yours. Aftermarket reads a LOT different and the mechanical one matched the aftermarket. It should be noted the stock one is good for developing a "norm". If you want to be accurate put a mechanical in...

^ yes keeping the vac as high as possible.

honda motorcycle

^ thats what i was wondering, must be the timing belt cover he is talking about

did you read his post?

where the injectors seal against the rail, any pitting or corrosion

couldnt live with out it in texas. Air temps were 95 F today, sitting in traffic the heat from the ground and the cars hit 120F coming through the window with no ac. FUCK THAT. Its not even our hot season yet.... If you dont use it, toss it. I view it as a creature comfort. Mines not a...

ive been told my hyper medallion is to quite. Buddy complains he hears the turbo spool even when im walking him on the highway over the exhaust (evo guys :crazy1:) 7m sounds like more grunt however a 2jz reving is pretty damn sexy. So freaking smooth... personally a boxer motor sounds...

what does the "seat" on the rail look like?

ones newer and has more adjustment points and 2 "maps" to tune with.

i have a bit of piston slap with stock pistons when temps get near freezing. You can hear it slightly when its warmer out, but not for very long at all. fully warmed up = just injectors and valve noise.