purplebird

I will be running a 1992 formula with super ram, headers, 2400 stall and 3.73's and having a chip burnt. what would be a good cam.

8T8IROC

iTrader: (3)

If you are going with a Super Ram I would purchase the LPE cam for our cars. It's the cam I wish I would have bought:

Lingenfelter Camshafts L98, LT1, LT4 1987 - 1991 Tuned Port Injection - Hydraulic Roller

purplebird

i have a 1992, that only goes up to a 91

USAZR1

I have one of these cams w/3K miles of use. It was going in my 355" sbc but I think I'm going to go with something wilder.

KiLLJ0Y

iTrader: (1)

they only state 91 because the corvette TPI only went to 91..TPI went to 92 for the camaro/firebird.. its ok to use..

on a side note.. you can use cams available for any LT1 engine,(92 corvette)93-97 F-body, 93-96 corvette LT1, 97 corvette had LS1s

the only cams you cant use are GEN III engines.. such as LS1,LS2,LS6,LS7

USAZR1

How would you compare the LPE 74219 to the GM LT4 Hot Cam? Which one has more overlap and a higher rev range?

KiLLJ0Y

iTrader: (1)

i would think the LT4 HOT cam with have a higher RPM range since it was designed for the LT1-4 style intake?


if im wrong, someone chime in, im not a cam "expert"

Nixon1

I can't get specs to those off-hand...if I saw some specs of both of them I could get a better idea.. But still I'm used to 302 cams which tend to be more radical, for whatever reason....but I might be of *some* use.

A few things to remember on a computer controlled car: Duration does not make the computer happy. And most of the time, a lot of duration means a lot of overlap as well. A custom chip will probably get rid of most of the computer issues with duration though.

But also extra duration mandates higher stall speeds. 2400 is a pretty decent stall as long as it's a true 2400......but too much duration and you may need to go larger.

And also, beware of tight LSA's. I can't speak for SBC's because I really don't know, but on EFI 302's, to keep the computer happy it's good to run no less than a 112 LSA. A 110 LSA will work fine if the duration isn't too radical, but generally the higher the number, the tamer the idle will be and the better the computer will work with the cam.

Hope any of this helps. Like I said, this is all 302 stuff I know, but hopefully you can translate some of this over and put it to use.


And don't forget about engine vacuum. Too much overlap and you may need to run a vacuum canister cause your power brakes will start getting funky on ya.