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Dyno question

greeny86

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Just got a dyno done today on my l98 6l

max power 369.1 hp @ 6559rpm after cam ,convert to kw = 275.24kw

max power 270.5 hp @ 5842 rpm before cam ,covert to hp = 201.71kw

I thought the car was already 270kw not 270hp standard, 270kw = 362.07hp anyway so really i have only got a gain of 5.24hp at the wheels!

So in the standard run it look's like they have used hp instead of kw to make it appear as if it has made a bigger increase in power
 

Ewok

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Owned!!!!!!!!!!! Hey want to buy a battery that will make your car sound like it has a supercharger ????
 

black as

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I have 2 cars VZ sv8 6 litre and VU ute 5.7 litre
Remember when you buy a car the KW'S are measured from the flywheel FW-KW's without power steering or air con etc.

When you've done your dyno today its measured from the rear wheels so its RW-KW"s

There is around 24-25% difference from the flywheel to the rear tires

So if you have it in horsepower and you don't like what you see go back and ask them to print you one off in kW'S
 

f1tzy

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It was 270kw at the flywheel not the wheels so 270hp at the wheels is pretty right stock
 

black as

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I have 2 cars VZ sv8 6 litre and VU ute 5.7 litre
Owned!!!!!!!!!!! Hey want to buy a battery that will make your car sound like it has a supercharger ????
Would you believe I watched 2 young peckers fit a whistle to there air cleaner and said what the f#@* are you doing, they said we want it to sound like they have a super charger under the bonnet :rofl::rofl::rofl:
 

ashbox

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Just got a dyno done today on my l98 6l

max power 369.1 hp @ 6559rpm after cam ,convert to kw = 275.24kw

max power 270.5 hp @ 5842 rpm before cam ,covert to hp = 201.71kw

I thought the car was already 270kw not 270hp standard, 270kw = 362.07hp anyway so really i have only got a gain of 5.24hp at the wheels!

So in the standard run it look's like they have used hp instead of kw to make it appear as if it has made a bigger increase in power

I'm confused, you have both the before and after runs in hp is that your mistake or is that what the dyno sheet/s read?

ALL figures holden quote are at the flywheel and so by the info you have provided us you have actually gained 74rwkw from the cam and tune
 

Ewok

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lol black :D yeah my comment is in relation to my previous Battery Issue thread hehe. I would actually believe it too, bloody kids these days ...

Ash appears to be right on the money with this too, 275rwkw = 368rwhp in the old metric.
 
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Torquative

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amazing how much power you acctually lose through the transmission, prop shaft, rear diff, drive shafts, tyres and rim package :whistling
 

eroled

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Owned!!!!!!!!!!! Hey want to buy a battery that will make your car sound like it has a supercharger ????
If he buys both our batterys he'll have a twin supercharger set up ,think how much hp he'll have then.:yeah:
 

Kal123

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I can't see how you could get confused..

First run is 200rwkw.. Second run is 270rwkw.. So you have obvisouly gained 70rwkw..

The 270kw that comes standard is measued at the fly.. which is basically 270hp or 200kw at the wheels.
 
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