Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end
07-10-2003, 02:40 AM
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Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end After being down a few ponies at a dyno in 110 degree weather, I decided to have a leakdown and compression test done just to make sure it wasn't just the heat killing my #'s.
Keep in mind I've been spinning a stock 2001 bottom end to 7000-7200 rpms hundreds of times over the past year (about 12000 miles), but normally shifting around 6800rpms or so. The engine has about 37K miles on it.
Well, the results are: Less than 3% leakage on every cylinder
Compression was stellar and steady in every cylinder as well.
I must say I'm utterly shocked that the bottom end has held up to the abuse as well as it has.
LS1's rule
This almost makes me want to throw more at it
It turns out a few of my sparkplugs were shot, and were probably part of the reason why my car wasn't dynoing so well....they hadn't been changed in almost 30K miles
The ohms on the coil packs and plug wires checked out good as well.
Keep in mind I've been spinning a stock 2001 bottom end to 7000-7200 rpms hundreds of times over the past year (about 12000 miles), but normally shifting around 6800rpms or so. The engine has about 37K miles on it.
Well, the results are: Less than 3% leakage on every cylinder
Compression was stellar and steady in every cylinder as well.
I must say I'm utterly shocked that the bottom end has held up to the abuse as well as it has.
LS1's rule
This almost makes me want to throw more at it
It turns out a few of my sparkplugs were shot, and were probably part of the reason why my car wasn't dynoing so well....they hadn't been changed in almost 30K miles
The ohms on the coil packs and plug wires checked out good as well.
07-10-2003, 11:16 AM
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Re: Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end Crazyquik, I've been running either Redline synthetic or Royal Purple Synthetic- both the race and street versions.
I've gone as thin as 5w-30 Royal Purple to as thick as 10w-40 Redline.
I've gone as thin as 5w-30 Royal Purple to as thick as 10w-40 Redline.
07-10-2003, 06:58 PM
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Re: Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end The ohms on the coil packs and plug wires checked out good as well.
07-10-2003, 07:13 PM
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Re: Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end
20% or more will start costing you power,Verbs what was your cranking compression pressure?
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07-10-2003, 07:27 PM
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Re: Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end The ohms on the coil packs and plug wires checked out good as well.
The coil packs were all either 35 or 40 ohms (i forgot which), and off the top of my head I can't remember what the wires were.
07-11-2003, 05:29 AM
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Re: Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end
20% or more will start costing you power,Verbs what was your cranking compression pressure?
07-11-2003, 09:06 AM
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Re: Lkdwn/compr. test result-12k mi. of 7000rpm-stock bottom end
20% or more will start costing you power,Verbs what was your cranking compression pressure?
