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Re: TPI Swap Q's
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Originally Posted by my new 72
My cam isn't too big. It has just under 500 lift and 110deg. Lobe seperation, a little lumpy, but nothing wild. From what I have read, th eupper RPM limitations are due to flow, and that is why I asked about porting and larger injectors. I also believe it can be converted to to MAF , but that is just what I "heard", so I am not sure. Good tip on the commander system, I will check it out. I'll give my engine builer a call and see if he can give me any advice and let me know what he can do as far as opening up the lungs on this thing.
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Its not so much as lift but more duration is the issue, 110 will work but you will be doing some tuning, 112 degrees is a little more friendlier to FI. As Neon larry mentioned about the LT1 intake is a much better performer than the old TPI unit. Even porting runners etc is still has a big fault on topend performance due mainly to its long runner legth.
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1967 C10 - SWBSS Pro Street 427sbc, 700R4 & 4.10 Gears
1948 Chevy FleetMaster Coupe, LS1, (almost done)
1950 Chevy StyleLine Coupe 250/6 3x2 Dueces
2009 Toyota Tundra
1996 Harley RoadKing
"I maybe getting old, but I can still burn rubber with the best of them"
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