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krawczuk
Learner
5 Posts
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 Posted - 18 Apr 2006 : 5:03:20 PM
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hi, does any body know the power output at the tyres of a standard vn v6 auto in kw and hp ?
thanks,
mark k
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mouce
National Driver
1525 Posts
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Posted - 18 Apr 2006 : 6:45:46 PM
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Don't know it exactly, but at the flywheel they were 127kw (supposedly), and you typically drop about 25-35% in the driveline, probably closer to 35% in the auto, this would give you roughly 85rwkw, but that's a very rough guess.
85kw works out to be about 115bhp.
Again, that's only roughly. But it's not a bad guide. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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george
Starting in the driveway
3 Posts
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Posted - 02 Aug 2006 : 7:45:59 PM
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| the vn series 1 mtor comes stock with 125 kw the vp has 127kw |
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mouce
National Driver
1525 Posts
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Posted - 02 Aug 2006 : 9:53:07 PM
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That's at the flywheel...there's a fair amount of loss between the flywheel and the tyres.
Generally a drop of about 30% is what a stock drive-line runs at. So whatever the figure at the flywheel is, take away 30% of that figure, and that's a ROUGH guide to what you'll have at the wheels.
As mentioned above it can vary between cars but 30% is a good starting point. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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lolo
Fully Licenced
503 Posts
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Posted - 02 Aug 2006 : 11:22:38 PM
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| my information points to 85-87kw at the wheels....done on dyno....also what holden claimed at the release of the VN.........however hows this for a good suprise,.... my funny old VN recorded 93rwkw on the dyno.....wat is up with my car???? |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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mouce
National Driver
1525 Posts
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Posted - 03 Aug 2006 : 10:52:13 AM
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Sorry to bring you down, but no two dyno's read the same, it's quite possible for any two dyno's to vary in their readings by as much as 10%. So if the one you were on was reading 10% higher than it should have then you're still running down at about 85-87rwkw. That said, there are a few 'freak' VN's out there that do produce well above what GMH claim.
Reason: The 3.8ltr Buick engine came from the states, where it was mounted in an east-west configuration, had a MAF sensor and a few other 'quirks'. When GMHA grabbed it and threw it at the VN, it (clearly) became a north-south engine, and we lost the MAF and scored a MAP sensor in it's place. End result is that while the engine was producing 125-127kw over in the states as it was setup over there, with the modifications that GMHA did to it total power output increased, and they never did any tests on it, they just quoted the power figure from the states. Most VN's when they were new, were thought to produce about 130-135kw at the flywheel. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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lolo
Fully Licenced
503 Posts
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Posted - 03 Aug 2006 : 10:30:19 PM
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| boooohhhooooooo wahwahwah lol then why is my car quicker than other stockies |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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