i was thinking of haveing my engine rebuilt say 355c.i. iron lightning heads 2.02/1.60 180cc, comp cams 218/228, stock tpi ported and gasket matched base and runners,ported plenum,1 5/8" hedman headers and 3" exhaust.



I allready have the following:

low temp fan switch,low temp thermostat,corvette servos,B&M shift kit,stock 3:27 gears,underdrive pulleys,air foil,ported upper plenum,home made cold air,throttle body coolant bypass,h.p. ignition,400 HP fuel pump,flowmaster exhaust,BBK AFPR,Hollowed out cat.

well my ? is what would my HP #s be? and what kinda 1/4 mile times would i be looking at in my GTA.

 

Oh, what say we call it about 260 net.

Might be a little better with aftermarket runners. The stock ones are going to knock the top off of the HP curve. MAF will be the other major limiting factor.

1/4 mile will be in the low 14 range, depending upon stall & traction.

 

i have to say your way off i am making about 260 now at the flywheel i was guessing more like 310 at the flywheel and maybe 270 at the rears.well thats my opinion anyway i cant see it making 260 im sorry.

 

Just the TPI is a restriction in itself. Even though the work you did on it will help somewhat, just the design of the TPI manifold cant feed a heavy breathing V8. Most people really struggle to make 300hp on a TPI engine. I'm not saying its not possible, just that its not easy (or cheap) to do.

I'd say five7 is probably right, 260-280hp sounds about right, and you'll probably run low 14s - high 13s

 

Yeah, he's about right on that number, 1987gt. That's why a lot of people switch to carbed because TPI is pretty restrictive unless you're getting a stealth ram or some other $$$$$$ piece of equipment.

 

i have to dissagree with you guys i see many people here running stock tpi ported and running mid 12s and even low 12s just check the archives.