dodgy dyno figures ?

[andyrose]

\'\'The rolling road is a direct comparison of engines, the road is a direct comparison of EVERYTHING.\'\'

Oh that is sooooo true, couldn\'t agree more!

[Fish]

Originally posted by Archbish
The rolling road is a direct comparison of engines, the road is a direct comparison of EVERYTHING.

More that an engine dyno is a direct comparison, than a set of rollers, hub or not.

Fish

[iaint]

Originally posted by Archbish
Blimey matey, that\'s a bit butch!!!:eek:

Pink sock?  Fishnets?

[Carl]

Rather than being in the movie now i think will join Max and share some of his Popcorn!That is if there is any left.

Regards
Carl:rollin

[BlitzBoy]

I like this thread very entertaining!!
I think rolling roads are just tuning tools, just got to make sure you go back to the same one after making changes to see it has improved things, you can only compare figures to other cars that have been dynoed on the same rolling road, I think none of us would dream of comparing figures gained from a Dyno Dynamics to a Dyno Jet.

But a terminal of 123mph is where its at! thats real power, Brian is only 7 mph off Geoffs terminal and 15 mph off Ross\'s terminal not bad for a privateer

[20B_boy]

Originally posted by BlitzBoy
I think rolling roads are just tuning tools, just got to make sure you go back to the same one after making changes to see it has improved things, you can only compare figures to other cars that have been dynoed on the same rolling road, I think none of us would dream of comparing figures gained from a Dyno Dynamics to a Dyno Jet.

Amen. If u dont accept the figures, dont ask for them - or take any notice of them! Use the equipment for tuning, not for dick-swinging The numbers at the end are just for fun :o

[JayDee]

But a terminal of 123mph is where its at! thats real power, Brian is only 7 mph off Geoffs terminal and 15 mph off Ross\'s terminal not bad for a privateer

But Ross\'s car has only 420atw;)

Jason

[BlitzBoy]

420atw corrr  Jay that car must be light!!!!!
what boost was that running on the rolling road?
Is Ross running at GT42?

[zevans]

More that a dyno is a good way of measuring the error in another dyno which was used to measure the error in another dyno which...

[zevans]

Hm. What\'s BSFC, and is what this RICE RACING chap is saying true? (You get more gain than pressure multiples alone suggest.)

If so, must be something to do with flow behaviour under different pressures...

That\'s the only explanation really, cos I find myself agreeing with both protagonists, which shouldn\'t be possible!

We have HP, the French have kW, the Germans have PS, and the Americans have... BS.

[nikp]

We should really have kW, as that is truly metric, but we still use mph, so what the hell!! :p

[zevans]

Worse, we talk about specific capacity in bhp per litre :rollin

[nikp]

Talk about getting metric and imperial measurements confused!

Next we\'ll be talking miles per km!!! :rollin (0.625 by the way! )

[MikeLMR]

Originally posted by zevans
Hm. What\'s BSFC

brake specific fuel consumption

e.g fuel consumption in relation to power output at the brake (dyno)

measured in bhp/lbhr or I suppose w/ghs :p