Leakdown/Compression #'s?
Leakdown/Compression #'s?
After the "White rabbit" was installed I was on the way to the tuner & I thought I hurt something (fortunately it was a couple of hoses that popped off)
Anyway, In the process a leakdown/compression test was done & the #'s were consistent, but seemed low-I don't remember what they were right now(low 100's?)-
Some help please & thank you?
Anyway, In the process a leakdown/compression test was done & the #'s were consistent, but seemed low-I don't remember what they were right now(low 100's?)-
Some help please & thank you?
Originally Posted by Fast Frank
Anyway, In the process a leakdown/compression test was done & the #'s were consistent, but seemed low-I don't remember what they were right now(low 100's?)-
Feel better now?
If you set your cams to something like +2/0, perform the compression test again and watch what happens.
In short, anything that increases top end power at the expense of low speed power will reduce cranking speed compression, so don't be alarmed.
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Originally Posted by Ted B
If you install a longer duration cam set (like the HKS 272s you have presently), the static compression numbers will typically be lower than stock because the long cam duration bleeds some of the intake charge at low speeds. Therefore, the factory compression specs do not apply to your setup.
Feel better now?
If you set your cams to something like +2/0, perform the compression test again and watch what happens.
In short, anything that increases top end power at the expense of low speed power will reduce cranking speed compression, so don't be alarmed.
Feel better now?
If you set your cams to something like +2/0, perform the compression test again and watch what happens.
In short, anything that increases top end power at the expense of low speed power will reduce cranking speed compression, so don't be alarmed.
Hopefully you did the test (compression) with a good gauge tester, hot vehicle and with the throttle wide open.






