View Poll Results: 114 or 112 for low rpm power
114
15
45.45%
112
18
54.55%
Voters: 33. You may not vote on this poll
Cam LSA
12-05-2012 | 01:27 AM
#75
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Joined: Aug 2005
Posts: 6,306
Likes: 1
From: Between A Womans Leggs in IL
fixx
I didnt do the actual test. Not sure who did. But even when you plug the numbers, low static compression combined with a late closing intake valve, with his stroke and rod length, it comes out to 120psi cranking.
This calculator is pretty close. My calculated numbers on my engines, and what they actually show on the gauge, is within about 5psi.
http://www.wallaceracing.com/dynamic-cr.php
This calculator is pretty close. My calculated numbers on my engines, and what they actually show on the gauge, is within about 5psi.
http://www.wallaceracing.com/dynamic-cr.php
this is what it said mine is(600sc) and 7.5 ~1
Static compression ratio of 7.75:1.
Effective stroke is 4.00 inches.
Your dynamic compression ratio is 7.35:1 .
Your dynamic cranking pressure is 142.35 PSI.
Your dynamic boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of 5 PSI is 9.85 :1.
V/P (Volume to Pressure Index) is 214
Last edited by FIXX; 12-05-2012 at 01:36 AM.
12-05-2012 | 06:01 AM
#76
Thread Starter
Registered
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
gotcha,,thanx for the link!
this is what it said mine is(600sc) and 7.5 ~1
Static compression ratio of 7.75:1.
Effective stroke is 4.00 inches.
Your dynamic compression ratio is 7.35:1 .
Your dynamic cranking pressure is 142.35 PSI.
Your dynamic boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of 5 PSI is 9.85 :1.
V/P (Volume to Pressure Index) is 214
this is what it said mine is(600sc) and 7.5 ~1
Static compression ratio of 7.75:1.
Effective stroke is 4.00 inches.
Your dynamic compression ratio is 7.35:1 .
Your dynamic cranking pressure is 142.35 PSI.
Your dynamic boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of 5 PSI is 9.85 :1.
V/P (Volume to Pressure Index) is 214
Static compression ratio of 8.8:1.
Effective stroke is 3.52 inches.
Your dynamic compression ratio is 7.74:1 .
Your dynamic cranking pressure is 152.29 PSI.
Your dynamic boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of 6 PSI is 10.90 :1.
V/P (Volume to Pressure Index) is 188
