per my last post it seems that the concences is that a larger tb will provide some gain over the stock unit even on a supercharged application--that being said then how big is too big?should i get the 58mm and just be happy knowing there is nothing bigger(other than the mono blade) or should i get the 52mm and try to keep the velocity of air passing thru up?any reasons to get one over the other?
thanks
pete

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1990 Trans Am,350 TPI(L98),WS6suspension ,bridgestone RE71's /245/45/zr16
paxton supercharger,afr heads, alston sfc's,msd 6AL-BTM,
8.5 superconductor wires SLP 1-3/4 headers,duel cats,3"slp exaust, lakewood LCA's,T.B.Bypass
160 degree stat,alum driveshaft,fiberglass wing, secret mods

"if you cant win fair CHEAT"

 

If you are using the stock plenum you will need to port match the inlet to get the benifit of the 58mm T-body. If you don't want to do that the 52mm will bolt right up with no port matching required.
With aftermarket heads I believe the 58 won't hurt you. I also feel the larger T-body bores will allow the plenum to be filled quicker and the supercharger will keep the velocity high through the T-body at least when under boost conditions.

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Tracy /AKA IROCKZ4me
'86 IROC-Z Camaro
"Cogito ergo zoom"

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

EFI Performance Club on Yahoo

 

1 vote for vthe 58mm anyone else?running a 58 with no adverse affects?

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1990 Trans Am,350 TPI(L98),WS6suspension ,bridgestone RE71's /245/45/zr16
edelbrock manifold,asm ltr's
paxton supercharger,afr 190heads, alston sfc's,msd 6AL-BTM,
8.5 superconductor wires SLP 1-3/4 headers,duel cats,3"slp exaust, lakewood LCA's,T.B.Bypass
160 degree stat,alum driveshaft,fiberglass wing,custem chip by me!

"if you cant win fair CHEAT"