LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Help with AFR rev kit!

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Old 07-05-2003, 02:59 AM
  #16  
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Thanx man I really hope so if anyone else knows about this I'd appreciate that since I'm putting all this in, I don't want to hurt performance in any way, this is to improve it a bit & give me safety

any other input I'd greately appreciate thanx guys.
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Old 07-05-2003, 03:45 AM
  #17  
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Originally posted by Shawn 97 Z28 M6
I think you'll have to use the 6150 kit. The bodies are the same between the stock and comp R's, but I think the top surface is different. I know when I say Jordon's kit on a Turbo'd 383, his used some black alignment keys - and he has Comp R's for lifters. I'm using stock lifters w/ the factory alignment keys and 16 little "nubs" that rest on top of the lifter body.

But, I have some comp R's on order as this HE grind cam is floating my valves at about 6k. <- It's the only thing I have left to change! LOL.
Sounds like maybe a spring issue, not lifters. What spring are you using?

Rich Krause
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Old 07-05-2003, 05:50 PM
  #18  
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TTT

I wanna know for sure.
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Old 07-05-2003, 11:07 PM
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Originally posted by rskrause
Sounds like maybe a spring issue, not lifters. What spring are you using?

Rich Krause
Not too sure.. But they measure around 145lbs on the seat right now. Some double coil w/ a dampner that Seth at Combination Motorsprts hooked me up with. However I did dyno today and it seems my fuel pump is taking a dive - 14.2:1 a/f @ 6000rpms.. So I'm going to install a new fuel pump and see if that helps some. At 2k I'm running around 11:1 a/f, it just leans out as RPM's increase (by about 25psi according to my FP gauge).
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Old 07-05-2003, 11:58 PM
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Your FP drop at WOT Shawn?

Cody
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Old 07-06-2003, 01:28 AM
  #21  
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This is bunker, stop hi-jacking my thread!!!

Last edited by 93formula; 07-06-2003 at 06:00 PM.
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Old 07-06-2003, 09:07 AM
  #22  
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Originally posted by 97 RedSS
Your FP drop at WOT Shawn?

Cody
Yeah... Stock FP though, so I guess it's to be expected.
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Old 07-06-2003, 06:01 PM
  #23  
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Seriously this sucks, I wanna know.
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Old 07-06-2003, 06:13 PM
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bunker,

I was over at GMRULZ house today (he's doing heads and cam too). We pulled his stock lifters and compared those to the Comp R's........the body of the R lifter is practically IDENTICLE to the stock lifter body. The Rev kit springs rest on the lifter body, you are good to go.
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Old 07-06-2003, 08:19 PM
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Originally posted by 97 WS6 T/A Conv
bunker,

I was over at GMRULZ house today (he's doing heads and cam too). We pulled his stock lifters and compared those to the Comp R's........the body of the R lifter is practically IDENTICLE to the stock lifter body. The Rev kit springs rest on the lifter body, you are good to go.
Yep, body of the lifter looks identical to me. I put the 2 side by side and could see no difference. The only diff is a little preload built into the comp R`s. One thing also since there is preload built in never tighten your lash more than a 1/8th of a turn past zero, do not treat these lifters like stock lifters when setting the lash. 1/16 to an 1/8th past zero and you will be straight. More than that and you will have premature failure of comp R`s. FYI.

Good luck
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Old 07-07-2003, 12:39 AM
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Thanx guys, yeah I saw that post but it wasn't 100% answer thanx guys
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