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Camshaft Question

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Old 07-01-2003, 04:42 PM
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Car: 1992 RS (25 th Anniversary)
Engine: 350 Miniram XFI
Transmission: Pro-Built 4L60
Axle/Gears: 3.73
Camshaft Question

Hi,
I have a question about a cam that I have in my engine right now. The specs for the cam are:

220 in/231 ex @ .050
.468 in/.480 lift
110 lsa

This cam is more for a carb, but I am putting this engine in my TPI car. Will this cam run in the engine, if so will it run like crap. Can I tune it so that it will run decent, or is it impossible?

Thanks
Old 07-02-2003, 12:04 AM
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Car: Check The Sig
yea, that will run in your engine... the lift isnt really crazy, but then again you didnt list anything about your motor, unless i missed it in the sig... it should run pretty good, but higher duration cams tend not to agree with the stock computer to well. good luck on the build up...
Old 07-02-2003, 01:04 AM
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not to go against what you said al but my computer has no prob with the hotcam, but maybe i just got lucky.
Old 07-02-2003, 01:07 AM
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Car: Check The Sig
well, not major problems but some PROM tunning would help out that LT4 hot cam.. im not talking about total mental ecm shut down.. but sometimes with a long duration, LSA, and... well just a big **** cam, the computer will start throwing codes...
Old 07-02-2003, 06:00 PM
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Car: 1991 Z28 - 2000 Z28
Engine: L98 - LS4
Transmission: 700R4 - 4L60E
Axle/Gears: 3.23's - 3.73's
It says TPI conversion, is it going to be speed density or MAF? If SD, it's going to run pig rich at idle from a low vaccum signal. MAF, it may run a little better because it's a little more forgiving. I don't think it will run very well with a stock PROM IMHO. Be prepared to spend money on chip tuning.
Old 07-02-2003, 08:05 PM
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Car: 1992 RS (25 th Anniversary)
Engine: 350 Miniram XFI
Transmission: Pro-Built 4L60
Axle/Gears: 3.73
Yeah, it's a TPI conversion. I'm swapping out the 305 TBI in my 92 RS for this:

1968 327 2 bolt block
bored .030 over ( that puts it at 331 c.i.d )
ground .010 on the mains
TRW hypereutectic pistons
hi- perf seals, moly rings, bearings, rods, rod bolts, frost plugs, ect.
ARP bolts through out
double roller timing set with thrust button
hi-perf oil pump and drive
baffled oil pan
291 casting heads
1.94/1.6 valves
1.52 roller rockers
pushrods, guideplates, screw in studs, guides, ect.
polished and ported
camshaft 220/231@.050, 468/480 lift, 110 lsa

91 Speed Density TPI Intake
Polished and Ported
Siamesed Base and plenum
48mm Throttle Body
Stock runners
19# injectors
AFPR

I'm gonna see about some chip work soon
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