Comp Magnum Rocker Arms overheating: Carniage!
11-27-2004, 12:51 PM
#51
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Originally posted by Confuzed1
Well, besides all the typical TGO accusations, I find this informative. At least now I know one thing to look for on mine.
I'm running the same rockers myself, but no problems yet. But I'm running lighter springs (110 lbs.)...maybe that's the diff, not sure.
First it was the 4340 forged Scat crank I read about a month or so ago, and now this!! I have both in my engine right now!!
Anyways, I hope full rollers solves your problem.
Well, besides all the typical TGO accusations, I find this informative. At least now I know one thing to look for on mine.
I'm running the same rockers myself, but no problems yet. But I'm running lighter springs (110 lbs.)...maybe that's the diff, not sure.
First it was the 4340 forged Scat crank I read about a month or so ago, and now this!! I have both in my engine right now!!
Anyways, I hope full rollers solves your problem.
I'm running cat roller rockers now on 130# springs and no probs.
Only issue I've had was a couple polylocks losening up, which resulted in the rocker breaking hte pushrod. Rocker still fine though. Amazing.
-- Joe
11-27-2004, 08:48 PM
#52
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Car: 83Z28 HO
Engine: Magnacharged Dart Little M 408
Transmission: G Force 5 speed
Axle/Gears: Moser 9" w/Detroit Trutrac
I've had was a couple polylocks losening up, which resulted in the rocker breaking hte pushrod. Rocker still fine though. Amazing.
11-27-2004, 11:33 PM
#53
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Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
I have to say, the Comp Magnum Pushrods are still in mint condition! No tips to break off.
11-28-2004, 10:38 AM
#54
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Originally posted by Twilightoptics
I have to say, the Comp Magnum Pushrods are still in mint condition! No tips to break off.
I have to say, the Comp Magnum Pushrods are still in mint condition! No tips to break off.
-- Joe
12-03-2004, 03:28 AM
#55
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Car: 87 Trans Am GTA
Engine: 408 LS
Transmission: LS 4L60E
Axle/Gears: 9 Bolt/3.70 Gears/TAP Girdle
this is an interesting thread, i manage to rev to 6500 over and over with stock gm pushrods and stamped steel rockers. Using the lt4 hotcam and stealthram. I originally thought the reason for the overheating would be the ball grinding too much. Last winter I found my old set of stock steel rockers were being tore into and off center by the ball on the inside.
It's funny how I managed to break a brand new comp cam pushrod 3 days after I put it in, but my old *** gm pushrods live on through the hell I put them through. I don't fault them, I fault myself for buying the cheapest set they had. Even if they are suppose to be better then oem and hardened for guides.
It's funny how I managed to break a brand new comp cam pushrod 3 days after I put it in, but my old *** gm pushrods live on through the hell I put them through. I don't fault them, I fault myself for buying the cheapest set they had. Even if they are suppose to be better then oem and hardened for guides.
12-03-2004, 12:35 PM
#56
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Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
Technically you are supposed to run new new rockers when you get new pushrods, and vice versa, according to comp.
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