1FSTBRD
Registered User
I was just wondering what everyone' experiences were with putting a bigger (any size) throttle body and then porting the throttle body opening in the manifold. I'd gone the 70MM Accufab/ porting route on my '99 split port 3.8 Mustang and found that I'd lost some throttle response, but the difference was when I'd ported it, as when I put the stock TB back on with the same porting, the car went back to its normal throttle. Does it make much difference on the 3.8 supercharged version? I'd just bought my '91 SC, so it's stock right now, but obviously soon won't be, heh heh.
A few more questions:
1) What are the constrictions on the normal SC engine? Obviously the heads to a certain extent, and the exhaust (especially on these cars)
2) On the stock M90, does the opening/ port below the supercharger suffer from heavy casting flaws/ restrictions?
3) Also, does the supercharger, itself, pick up any heat from the upper manifold and would isolating it with a phenolic spacer be of any use? The upper manifold on my Mustang stays way cooler with the G10 phenolic spacer in between the upper and lower manifolds, plus, it was great to clean out the carbon and gunk in there while I was at it
A few more questions:
1) What are the constrictions on the normal SC engine? Obviously the heads to a certain extent, and the exhaust (especially on these cars)
2) On the stock M90, does the opening/ port below the supercharger suffer from heavy casting flaws/ restrictions?
3) Also, does the supercharger, itself, pick up any heat from the upper manifold and would isolating it with a phenolic spacer be of any use? The upper manifold on my Mustang stays way cooler with the G10 phenolic spacer in between the upper and lower manifolds, plus, it was great to clean out the carbon and gunk in there while I was at it