My before and after tuning graphs

[mini-valver]

^How can that be though as the rollers are being powered by the wheels and so it is using a formula to calculate fly HP.....

 

[stan*]

any rolling road ONLY calculates wheel horsepower.

its the programming behind it which determines other figures such as flywheel power.

 

[mini-valver]

TheOne, How can that be right though as the rollers are being powered by the wheels and so it is using a formula to calculate fly HP.....

Therefore wheel HP should be right ad the fly HP is calculated, right?

 

[stan*]

to confirm...i mean reads wheel power (as derived from actual load figures and rpm)....

 

[stan*]

TheOne, How can that be right though as the rollers are being powered by the wheels and so it is using a formula to calculate fly HP.....

Therefore wheel HP should be right ad the fly HP is calculated, right?

yes lol

 

[BenR]

I dont get it.........

If we can all rely on torque wrenches to do up nuclear power stations......why cant these people get a RR right?

 

[BenR]

Perrie on here [have'nt seen him for a while] had same mods as me. He got rr'd at Falkland and got very similar results.

Let's just rejoice in the fact we all own the best hot hatch ever. The like of which will never be seen again.

I dunno....................the 197 chassis pretty much rocks.

 

[stan*]

I dont get it.........

If we can all rely on torque wrenches to do up nuclear power stations......why cant these people get a RR right?

LOL

looking at the graph data, they are using coast down to determine losses. If its been yanked onto the rollers, like most operators do (and shouldnt), then this is going to skew all data.

I would suggest you try another rolling road.

 

[ja.jack]

It was the one from GDI, Evoo. Dont think that 197 will ever be fast AND affordable.

 

[BenR]

I've always been against coast down losses as i've said many times.

But i'm more annoyed at the wheel bhp varience between RR manufacturers and RR operators.

 

[stan*]

yup....

 

[Rob_]

TheOne, How can that be right though as the rollers are being powered by the wheels and so it is using a formula to calculate fly HP.....

Therefore wheel HP should be right ad the fly HP is calculated, right?

So you think ja jacks WHP figure of 135bhp is right do you??

Well it isnt

 

[mini-valver]

Theoretically, it is.

 

[stan*]

read what ive put above.....it looks like its been strapped down too much.

if that is the case, this will reduce the initial wheel data...i.e sap power. it will then increase rolling loss on coast down, and skew calculate there on.

 

[ChrisR]

So you think ja jacks WHP figure of 135bhp is right do you??

Well it isnt

That's the problem, becuase of the way these RRs are setup they really feck up the atw figures to try and give you a more "accurate" atf figure, least that's what was told about the PS rollers. Every car when I went to powerstation had silly low atw figures yet magically the atf figure was too high!

Going on my readings alone there was apparently 31% tranny losses.