My car has been down for 6yrs, This was my build:
ATR headers/exhaust
BGC alum intake
212 hydr cam/stock rockers
GN1 alum heads stock/header port matched.
63mm 1st gen GT precision turbo
I'm going to:
ATR headers/exhaust
BGC alum intake
212 roller cam/T&D rockers
GN1 alum heads stock/header port matched.
Alky injection
63mm 1st gen GT precision turbo(to be upgraded to ball bearing after the build is done & the tweaks are made to see where we are at on HP)
So the question is, the motor will be pulling 8.3% more air with the stroker kit. If I leave the heads alone I would imaging I would have more bottom end tq, because the air is moving faster for the same size runners & less efficient at WOT. Should I not have the heads ported to have 8.3% more flow to maintain the same efficiency map in my FAST system? I know I have had 2 people look at my FAST maps in the past & said my VEs look 5-7% low at WOT.
A side note, is a 212 cam a little small for a street driven car on the latest turbos out today? I've tried a 218 hyd\stock rockers on my non GT63 turbo in the past & thought it was too doggy on low end & swapped out for the smaller cam.
ATR headers/exhaust
BGC alum intake
212 hydr cam/stock rockers
GN1 alum heads stock/header port matched.
63mm 1st gen GT precision turbo
I'm going to:
ATR headers/exhaust
BGC alum intake
212 roller cam/T&D rockers
GN1 alum heads stock/header port matched.
Alky injection
63mm 1st gen GT precision turbo(to be upgraded to ball bearing after the build is done & the tweaks are made to see where we are at on HP)
So the question is, the motor will be pulling 8.3% more air with the stroker kit. If I leave the heads alone I would imaging I would have more bottom end tq, because the air is moving faster for the same size runners & less efficient at WOT. Should I not have the heads ported to have 8.3% more flow to maintain the same efficiency map in my FAST system? I know I have had 2 people look at my FAST maps in the past & said my VEs look 5-7% low at WOT.
A side note, is a 212 cam a little small for a street driven car on the latest turbos out today? I've tried a 218 hyd\stock rockers on my non GT63 turbo in the past & thought it was too doggy on low end & swapped out for the smaller cam.