StealthElephant

Well I'm putting a stock LT1 vette cam in on saturday, it's 465 lift i think, around there, maybe a little lower, and unlike the 488 lift comp cam i was gonna get which was 240$, the lt1 cam is free

BadIroc

Iam jus saying that because Tunedport335 is not running stock heads on his motor, so the lift of the cam he is running with is finei was jus saying the duration of the cam is right for his motor because he is still running the stock TPI set up, thus that cam is right for his car.

Chuck!

****, like I said, if I had to do it again I'd run the ZZ4 cam which is .490 / .510 I think. Two guys are running it on the tbi board on thirdgen.org with good success.

musman70

Hmmm........

Running a 305 TPI with this 4-wheeler cam from Comp:

COMP Cams, Inc.™
cam specs for part number: 12-235-2
Grind number CS X4 254H-11
Recommended Valve Springs 981-16

Technical Specifications:
* Advertised duration: 254 intake/262 exhaust
* Duration at .050 in. cam lift: 210 intake/218 exhaust
* Gross valve lift: .447 in. intake/.462 in. exhaust
* Lobe separation: 111 degrees
* RPM range: 1,000-5,200
* Strong low-end and mid-range torque, good idle

Works pretty darn well...power where needed, correct amount of duration,lift is OK for single springs...and best of all,when i say to people that i have a 4-wheel cam, they start to tell me how those cams are not compatible with ECM and so on.....compare this for example to this "official TPI cam"

Chevy: 1985-87 Camaro 305, 350, 1985-87 Corvette 350; Pontiac: 1985-87 Firebird 305, 350, 268/278 degrees duration TPI camshaft kit
Advertised duration: 268 intake/278 exhaust
Duration at .050 in. cam lift: 204 intake/214 exhaust
Gross valve lift: .420 in. intake/.442 exhaust
Lobe separation: 112 degrees

Try that Comp profile, i'll love it.....

-J

Sitting Bull

musman,

I think you have the XE262 type of grind. It's fine for a 305, especially if it is a standard tranny. If automatic you would need a looser torque converter, so I would use a smaller grind if running an auto.

The only thing I would wonder about is the 111 LSA. I would think that a fuel injected engine would like a wider LSA but I guess it works OK, since you are not having troubles.

SLP IROC-Z

i have a stock head and cam 89 IROC 305TPI 5spd and a best time of 13.9 @ 97.08. its all about the free mods and weight reduction.

SLP IROC-Z

heres my time slip:

and a list of my mods:
Mods:

vehicle weight with driver 3350 with a 1/4 tank of fuel

hollowed cat
removed emissions
removed AC
throttle body coolant bypass
cut the bottoms off the air box
manifold air temperature sensor relocated to the air box cover
160 stat, manual control dual fans
dynomax super turbo exhaust
dynomax headers
headman Y pipe 2.25 to 2.5
stock timing
ported plenum
ac delco plugs
centerforce dual friction clutch
removed the spare tire and jack
removed rear seats

BadIroc

hey SLP whats up man?? its BobFitz82 from IROCzone

SLP IROC-Z

sweet whats up dude

BadIroc

not too much man, jus hanging around here now that IROCzone is till down, hope its back up soon, im going through withdrawls

SLP IROC-Z

its back up check it out man, i wanna know when us NE members are gonna get some video footage done, check out the old topic in the lounge.....