Topic: well hell...back to the drawing board.
in Forum: C3 Engines
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Have your short block decided and your heads and how much boost you will run and decide how it will be done. (super/turbo) decide if you want EFI or carberation. then decide what your rear gear will be. Then decide your cam and valve train. Will it be a roller or flat tappet cam? Mechanical or hydrallic? After you decide on this call comp cams and tell them your combo and they will give you the best cam, valve train, timing set, lifters, and springs.
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Dont worry about the starter, valve covers, wires, air cleaner and such yet.... this is your last concern. get your motor built first, then worry about the bolt ons and small details.

Bismarck, ND - USA
Joined: 10/1/2004
Posts: 380
Vette(s): 1970 stingray, t-top, mulsanne blue with black interior, 406 ci with 444 hp, racing suspension, hooker headers/sidepipes - SOLD :(
EFI vs carberation is something I've pondered for a long time. I was thinking carbs have slightly better acceleration, but EFI is more reliable and saves more fuel. plus it's a question of build cost as well. I think I'll start a comparison thread to help determine which one I atually want to use.
oh yes, with the power I'd have, wouldn't I need to reinforce the drivetrain as well?
|UPDATED|11/3/2004 10:00:57 PM (AZT)|/UPDATED|
oh yes, with the power I'd have, wouldn't I need to reinforce the drivetrain as well?
|UPDATED|11/3/2004 10:00:57 PM (AZT)|/UPDATED|
Mike
My old Stingray...sure do miss it:
(click image to see a bigger version)

Hot Springs, AR - USA
Joined: 4/24/2004
Posts: 3236
Vette(s): 69 Conv #'s match 427, TKO-600/.64, 3.36HD-Posi, HT, T/T, PS, PB, PW, SP, Leather, Comp XE264HR & Roller Rockers & Lifters, Air-Gap RPM intake, Holley St Av 770 VS, MSD 6AL+Dist+Blaster SS, K&N, Jet-Hot Hooker Side-Pipes, Steeroids, Al Rad, Spal Fans
if you can afford it ... EFI is the way to go..
Of course you need to reinforce your powertrain. I think your differential can handle the power but you will need to have a strong drive shaft, halfshafts, u-joints. Also that built up th-400 will work fine. they are stout transmissions. If you got the dough though you might wanna look into a 4L80E transmission. Its got overdrive so your top end wont be hurt by a high ratio gear.
And, EFI will out acellerate and respond quicker than a carb. As well as do everyting else better.
There is a lag time when the throttle is opened in all cases. EFI responds with the speed of electronic and sensors. Carbs respond at the rate of changing air pressure and flow. That's why then need an acellerator pump. They are slower to stabilize in any condition.
Plus there is a lag time from when the fuel is introduced until it gets in the cylinder. This is directly related to the distance from the fuel source to the cylinder. Port fuel cars introduce fuel at the back of the intake valve, and as a result are more responsive than the longer path of the carb.
|UPDATED|11/4/2004 11:50:06 AM (AZT)|/UPDATED|
There is a lag time when the throttle is opened in all cases. EFI responds with the speed of electronic and sensors. Carbs respond at the rate of changing air pressure and flow. That's why then need an acellerator pump. They are slower to stabilize in any condition.
Plus there is a lag time from when the fuel is introduced until it gets in the cylinder. This is directly related to the distance from the fuel source to the cylinder. Port fuel cars introduce fuel at the back of the intake valve, and as a result are more responsive than the longer path of the carb.
|UPDATED|11/4/2004 11:50:06 AM (AZT)|/UPDATED|
in Forum: C3 Engines
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