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what cyl pressure should be?/?
- kzz1p
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25 Aug 2009 12:42 #316315
by kzz1p
Replied by kzz1p on topic what cyl pressure should be?/?
Good point Terry!
With a 30/70-70/30 valve timing you have 185-190 psi across the board. Now with a 26/56 timing, the intake is closing 14* sooner. That will increase the cylinder pressure greatly. That's why I am thinking it would be, well over 200 psi with a 10.25:1 compression ratio. As davel had stated, a few degrees of cam timing, goes along ways.
With a 30/70-70/30 valve timing you have 185-190 psi across the board. Now with a 26/56 timing, the intake is closing 14* sooner. That will increase the cylinder pressure greatly. That's why I am thinking it would be, well over 200 psi with a 10.25:1 compression ratio. As davel had stated, a few degrees of cam timing, goes along ways.
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25 Aug 2009 12:48 #316318
by kzz1p
Replied by kzz1p on topic what cyl pressure should be?/?
Ben,
That is good thinking on your part. You just may have a real peice of history, on your hands. Who knows? I like to see that you are willing to give someone else a shot at it......
Once again, good job Ben!
That is good thinking on your part. You just may have a real peice of history, on your hands. Who knows? I like to see that you are willing to give someone else a shot at it......
Once again, good job Ben!
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25 Aug 2009 16:20 #316357
by PLUMMEN
Still recovering,some days are better than others.
Replied by PLUMMEN on topic what cyl pressure should be?/?
irishwill wrote:
if i can get my stupid computer to allow me to load new pictures ill post some shots of what i aquired over the weekend,lets just say its got a lot of plastic and its under boost! never thought id buy one! :laugh:PLUMMEN wrote:
i leave town for a few days and miss all the fun! :laugh:
somthin' tells me fun is not something you miss out on often;-)
Still recovering,some days are better than others.
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25 Aug 2009 16:27 - 25 Aug 2009 16:29 #316359
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic what cyl pressure should be?/?
1973 Z1
KZ900 LTD
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Last edit: 25 Aug 2009 16:29 by Patton.
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- irishwill
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25 Aug 2009 18:41 #316391
by irishwill
Replied by irishwill on topic what cyl pressure should be?/?
PLUMMEN wrote:
keep the rubber on the road and you'll have nothing but giggles ....good for you bud!
someone who knows alot more than me once told me "yer fcuked now....you'll do one of two things...keep turnin' the boost screw till you wreck your bike or wreck yourself"irishwill wrote:
if i can get my stupid computer to allow me to load new pictures ill post some shots of what i aquired over the weekend,lets just say its got a lot of plastic and its under boost! never thought id buy one! :laugh:PLUMMEN wrote:
i leave town for a few days and miss all the fun! :laugh:
somthin' tells me fun is not something you miss out on often;-)
keep the rubber on the road and you'll have nothing but giggles ....good for you bud!
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