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Old 03-14-2007 | 04:39 PM
  #1  
90-irocdx3's Avatar
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
cam upgrade

i am currently running the zz 383. here are the specs 9.7to1 compression hypercautic and 222/230 duration and 509/528 lift with fast burn heads and 1.5 roller rockers and superram intake. the transmission has a 2600 stall converter and a 2.73 rearend. I would like to waken up the motor a little bit and rougher idle. looking for hydraulic roller cam, not worried about smog.


first cam i was looking at.
"XFI" 292 Hydraulic Roller Camshaft
GM 305-350ci 1987-98
Lift: .584"/.579" w/1.6 Rockers
Duration: 292°/300°
RPM Range: 2200-6200

any suggestions for cams? hopefully more of a gain than 30hp.
Old 03-14-2007 | 05:36 PM
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SpitotRs305's Avatar
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
dont bother with a cam until you get better gears
Old 03-14-2007 | 11:52 PM
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90-irocdx3's Avatar
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
well see i want to stay with the stock gears
Old 03-15-2007 | 01:05 AM
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WheelsUp84z's Avatar
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From: currently Jacksonville NC
Car: 91 z28
Engine: 383 sbc, 88mm turbo a2w IC, CSU 750
Transmission: th-400 PTC 4000 stall
Axle/Gears: ford 9" 3.55 gear
you running at Bonneville or something??? why would you want to keep 2.73 gears for anything other than that?
Old 03-15-2007 | 02:50 AM
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1991CamaroRslow's Avatar
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From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
That cam, the Super Ram, and your rear end gears are one of the biggest mis matches I've ever seen. Turn the idle down if you want it to idle worse, and get some real gears in that thing, it'll make you happy.
Old 03-15-2007 | 03:07 AM
  #6  
rocluvr0013's Avatar
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From: Chico/Antioch California
Car: 1989 iroc Z Hardtop
Engine: 350 tpi
Transmission: 700r4
Originally Posted by 1991CamaroRslow
That cam, the Super Ram, and your rear end gears are one of the biggest mis matches I've ever seen. Turn the idle down if you want it to idle worse, and get some real gears in that thing, it'll make you happy.
+1...
Old 03-15-2007 | 06:16 PM
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90-irocdx3's Avatar
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
wow that would make good sense to make my idle rougher and lose horsepower. i guess i will look help from comp cams or lunati.
Old 03-15-2007 | 08:01 PM
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SpitotRs305's Avatar
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
well thats whats gonna happen anyway might as well save your self the $250
Old 03-15-2007 | 08:21 PM
  #9  
xpndbl3's Avatar
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
stock cam is too big for those gears, what a mismatch.
Old 03-15-2007 | 11:16 PM
  #10  
1991CamaroRslow's Avatar
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From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
Yeah you lose a ton of horsepower when you turn your idle down tool.
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