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

Is there a significant power loss with a collapsed lifter?

Old Sep 27, 2004 | 11:47 AM
  #1  
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Is there a significant power loss with a collapsed lifter?

I'm seeing a pretty significant power loss and I just found out I have a bad lifter. Just checking to make sure if this would be the cause of my power loss.
Old Sep 27, 2004 | 12:09 PM
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Re: Is there a significant power loss with a collapsed lifter?

wont it prevent the valves from opening or closing all the way...so i would think it would cause quite a bit of power lose.
Old Sep 27, 2004 | 01:06 PM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Gripenfelter
I'm seeing a pretty significant power loss and I just found out I have a bad lifter. Just checking to make sure if this would be the cause of my power loss.
I would think it would cause a power loss along with some wacky fuel readings, considering that not as much air would be entering the cylinder.
Old Sep 27, 2004 | 01:08 PM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Fastbird93
I would think it would cause a power loss along with some wacky fuel readings, considering that not as much air would be entering the cylinder.
Explains why I blow black smoke.
Old Sep 27, 2004 | 02:50 PM
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Re: Is there a significant power loss with a collapsed lifter?

What lifters were you running? don't you have a 230/236 also?
Old Sep 27, 2004 | 02:55 PM
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Re: Is there a significant power loss with a collapsed lifter?

Well, if one cylinder is running like crap, there goes nearly 13% of your power. So on a 400 hp car, there goes 52 hp....
Old Sep 27, 2004 | 03:10 PM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Gripenfelter
Explains why I blow black smoke.
Wouldn't happen to be running Comp R's would you??
Old Sep 27, 2004 | 03:15 PM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Fastbird93
Wouldn't happen to be running Comp R's would you??
Yes I am why?
Old Sep 27, 2004 | 03:25 PM
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Re: Is there a significant power loss with a collapsed lifter?

thats not good that you have comp R's and killed them. Are you running a standard XE grind or one of the higher lift versions?
Old Sep 27, 2004 | 03:26 PM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Z95m6
thats not good that you have comp R's and killed them. Are you running a standard XE grind or one of the higher lift versions?
LE2 cam.

Why is it bad? What does it mean?
Old Sep 27, 2004 | 03:41 PM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Gripenfelter
LE2 cam.

Why is it bad? What does it mean?
Did you use to have a XE? for some reason i thought you had a 230/236 at least at one point. I was saying thats not good that you collapsed a Comp R lifter because i just had my intake off replacing my OEM lifters with Comp R's and i never want to have to replace lifters again. I thought these lifters were suppose to be indestrucible.
Old Sep 27, 2004 | 04:42 PM
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Re: Is there a significant power loss with a collapsed lifter?

Reason I asked why is because I've noticed a lopsided ratio of guys with Comp R lifters that go bad vs. guys with standard OEM replacement lifters that go bad.

I'm looking at a possibility of a few bad lifters myself. Just recently I've seen pictures of a guy who had a bunch with the retaining tops having broken off.
Old Sep 27, 2004 | 05:11 PM
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Re: Is there a significant power loss with a collapsed lifter?

Kinda makes me glad I went with stock replacement lifters, and didn't waste my money on COMP R's

Frank
Old Sep 28, 2004 | 08:23 AM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Z95m6
Did you use to have a XE? for some reason i thought you had a 230/236 at least at one point. I was saying thats not good that you collapsed a Comp R lifter because i just had my intake off replacing my OEM lifters with Comp R's and i never want to have to replace lifters again. I thought these lifters were suppose to be indestrucible.
Yes I used to have an XE 230/236 but switched to an LE2.
Old Sep 28, 2004 | 08:45 AM
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Re: Is there a significant power loss with a collapsed lifter?

Originally Posted by Gripenfelter
Yes I used to have an XE 230/236 but switched to an LE2.
The LE2 is going to have more abusive ramp rates than a standard XE grind.

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