yeh it seems i have to take a good 1 degree advance out for every 1psi boost. i'm not sure at what point, rasing the boost and retarding the timing has negative effects. guess i will have to keep testing to find the best compromise. turbo defintly has alot left in it. witch is slightly annoying since its hardly in its efficiency range.
car is a bit ruthless to do the "hill dyno" at a legal speed. as it starts too wheelspin unless a higher gear is used. or its on a lower boost setting. (uses staged boost for traction, but thats no help when tuning high boost) so have to use the brakes to load it up a bit. hopfully i can get hold of a laptop this week so i can datalog a few things. should make it easyer
w.i seemed to help a little. but not much. maybe my jet is in the wrong position, its about 400-500mm from the throttle body on the bottom of the intercooler pipe. going closer help? or distribution problem as john says.. inlet runners sit flat as you can see in the pic. is it possible some of the water is falling out suspence in the plenum?
need to try a few more things with it first tho, bad weather has only let me do a quick test with wi
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26-03-2006, 09:40 AM
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