i was thinking of getting the crane compucam camshaft. it is only $159.00 and comes with new lifters and assembly lube. i am torn between two of them. the first,has an
RPM range:1,000-4,000
194/204*int./exh.
.401"/.423" lift

and the other cam i am contemplating is:
RPM range:1,500-4,500
204/214*int./exh
.423"/.446" lift

which whould be best for my car? keep in mind that i still have the stock gears and torque conv. i also plan on getting crane valve springs, and eldebrock timing chain. if i did this what kinda power can i expect? is there anything else i should get, like rockers or pushrods or something. i need to do this a cheaply as possible so if i can get a moderate gain with just the cam,lifters,timing chain,springs, that would be best.

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1986 WS6 pontiac trans am
5.0 305 TPI V8
700R4 tranny w/transgo shift kit. borg warner wires,accel cap and rotr,delco plugs, K&N
KYB shocks,dynomax high flow cat,3"intermediate pipe,40 series flowmaster
w/2 3" tailpipes.

"ponys can run but birds can fly"

 

I wouldnt use the first, thats a waste of time and money. The second isnt a whole lot better, but it will help. See if you can find something in the 210-215 intake duration area, and around .440-.450 lift.

 

I agree the 194 cam is not worth your time. The later TPI 305's had 202/207 cams and the L69 had a 202/206. Anything less than these specs is pointless IMHO.

You should notice considerable difference with the 204/214.

 

Sounds like your debating between the Compucam2020 and Compucam2030.

The 2020 will yeald you an extra 25hp over the stock peanut cam. Going with the 2030, you can expect a 31hp increase, yet if you add a decent set of headers, you can expect a combined cam/header increase of over 60hp. (according to Dyno2000).

Madmax is suggesting you try something more like the Compucam2040. According to Dyno2000 you will loose power with the 2040. The 2040 has a 114* lobe separation, vs. the 112* that the 2030 cam has. I'd stick with the 2030.

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Rob
'86 TA 305 TPI
Gutted MAF, Ported Plenum
TB Bypass, Home made Cold Air Intake,
Edelbrock T.E.S.
48psi regulator, (Nickel method)

 

hello, i have a 86 iroc with a 305 tpi. i installed a comp cam 1200-5200rpm range, 212 duration .050 on intake and exhaust, .444 lift on exhaust and intake with a 112 lsa. it is a computer controlled cam. runs good. for a 305 or 350 tpi motor. best of luck, tom

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86 iroc 305tpi auto. mild cam

 

What's the part number for that cam Mckenzie? Sounds like a good cam.

 

I had that comp cams camshaft in my 86, ran pretty good, no puter problems at all, but I felt I could have run something a little bigger. Before that cam, I had a melling cam, 204/214 .422/.444 lift, 112lsa. It ran about the same timewise, but idled poorly. The car was much happier with the comp cams one. Thats why I suggested what I did, I had a stock exhaust except for the muffler, mildly ported heads, and stock intake.

Rob, its 12-314-4

FYI its identical to the stock cam used in 5.0 mustangs, aside from the different cam lift due to the 1.6 rockers on the Fords... the valve lift is the same. So is the cam timing. I think the next one up at the time (things have changed since then) would have been better, its a 212/218 .444/.444 114lsa. That part number is 12-402-4. I regret to this day not picking that one instead.

[This message has been edited by madmax (edited August 13, 2001).]

 

I just put in a Compucam 2032
270/276 452/465 @50 112 lsa. RPM range from 2000-5500. Personally i think its a little too big, it idles rough, but not as bad as i thought, runs pretty good, but now i need a new torque converter, i have very little power before 2000rpm There wasn't much of a choice with the compucam since i have hydraullic roller....

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Ant
87 IROC 305 TPI

 

My friend used the smaller SLP cam from summit in his 89 RS. He had pretty good success with it, it has a lot more lift than the Crane ones you're talking about, I think its somewhere in the .480s or so.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Accel High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, Jet TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

Remember, his 86 is non-roller.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

i have the 2030 cam and u get that with headers and a GOOD CHIP, not hypertech but a good chip and it will have a BIG *** increase. like drastic one.

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it doesnt matter if u win by an inch or a mile winning is winning

 

Hey R.O.B. i think madmax gave you the correct p/n for the cam. if you have a 350tpi or a 305tpi with a performance chip you can go up a size on the cam. i wanted a bigger cam than stock, but nothing too crazy (going to use as a daily driver and just wanted a little more power...having a good idle is important to me) wondering how much horsepower i gained by installing new cam.
best of luck, tom

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86 iroc 305tpi auto. mild cam

 

mckenzie, I punched that cam into my Dyno2000. With all specs remaining the same, 12-314-4 vs. compucam2030, the 2030 cam out the winner. Gained 6 more hp, and a smoother torque curve. Although the 2030 only uses 204/214, it must be the 212/212 giving it the disadvantage. To much intake, not enough exhaust I guess. Anyway, 2030 will make you happy.

 

my 305 has comp cams' 210/220 duration, 114 lift; that car runs very well...

 

I'm almost finished putting my 2032 in all I need todo is put the tpi back on and time her - although I got an egr from napa and the vaccum hose fitting is too big for it - So i have to fix that too

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91 z28 lb9 5 speed - hooker 1 5/8 headers - high flow cat- full 3 inch exhaust - home made ram air - tpis airfoil - dual chamber flowmaster - Stage 2 Jet Chip and 160 stat - 8 mm Msd plug wires - 55,000 v hypertech coil/rotor/distrib. cap - Mac. White face gauges - lots of sound system crap...