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VE 4CW crankshaft max load
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VE 4CW crankshaft max load
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2010-03-29 19:32:28
#1
damasterpnut
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VE 4CW crankshaft max load
Out of interest: what is the max RPM or BHP/NM a 4CW crankshaft can handle without flexing or breaking out of its bearings?
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2010-03-29 19:36:46
#2
cory
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I kno I took it to 9k all day no issues. And jp made like high 500whp w one, so I wouldn't worry to much.
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2.0 218/153- 12.9@106
2.3 270/190- 11.6@116
2.4 285/210- 11.5@118
Retired...
2010-03-29 20:19:03
#3
Andreas Miko
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The WHP load is the same as the 8 CWC. The RPM limit is much lower than the 8 CWC as far bearing life goes.
Please note that all NISSANs SR cranks that go over 7000 RPMS are 8 CWC and all cranks under 7000 RPMs are 4 CWC.
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Good Thoughts Bring Good Vibes Which Bring Good Reasoning
I Am A JWT Dealer And VRS Dealer.
If you need any help 305-282-3643
I sell SR20VE, SR20DE and SR20DET motors
2010-03-29 20:27:50
#4
damasterpnut
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What would be a safe margin then. 8200 rpm on a 4CW crank still safe when tracking?
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2010-03-29 20:43:06
#5
donttazmebro
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everything is safe if you are maintaining it
regularly check for bearing wear after 100 or so race miles
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IX MR vs VVL guess who's faster
2010-03-29 21:27:39
#6
derm
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Originally Posted by
Andreas
The WHP load is the same as the 8 CWC. The RPM limit is much lower than the 8 CWC as far bearing life goes.
Please note that all NISSANs SR cranks that go over 7000 RPMS are 8 CWC and all cranks under 7000 RPMs are 4 CWC.
Oops and I rev my little monster to 9500 rpm
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2010-03-29 21:47:05
#7
cory
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Originally Posted by
derm
Oops and I rev my little monster to 9500 rpm
Yeah man u ever gonna post a graph. Iv been thinking about that set up wondering how it did.
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2.0 218/153- 12.9@106
2.3 270/190- 11.6@116
2.4 285/210- 11.5@118
Retired...
2010-03-30 13:45:15
#8
B12NISMO
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so its safe hiting 9k or with constant percautions looking at bearing wear?
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91 Sentra XE-
R
in progress almost done. All motor setup.
2010-03-30 14:09:15
#9
Andreas Miko
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Originally Posted by
B12NISMO
so its safe hiting 9k or with constant percautions looking at bearing wear?
why does thing havre to so black and white with you guys.
Building a street motor to do some 1.4 mile racing run the 4 CWC
Building a race motor to go around a track run an 8CWC
Going to pullthe motor down every few races build an 8 CWC
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Good Thoughts Bring Good Vibes Which Bring Good Reasoning
I Am A JWT Dealer And VRS Dealer.
If you need any help 305-282-3643
I sell SR20VE, SR20DE and SR20DET motors
2010-03-30 14:11:43
#10
damasterpnut
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And if you do more streetdriving/weekend warrioring with the occasionale laps at the local racetrack and the Nurburgring. 4CW still will be fine if you ask me?
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