big lag

[aep886]

turbo boost come in only @ 3500....
i had high compression piston installed but with a thick HG....
standard turbo... everything.... but turbo only kicks in @3500....
and rev is much slower then before.... could my lighten flywheel cause some issue here???

[POWDER]

Is the rest or your settup still the same as before? Also, are you sure ur compression is still correct? If it is not the same as before or as should be, it will effect ur performance.

Lighter fly wheels are generaly installed to make your car rev easier, takes away from torque though.

Also, how big are your boost pipes? Remember, the larger they are the more lag they cause. 50mm should be perfect for anything upto T3/T4 and give minimal lag. Induction pipe keep as big as possible.