Got LOTS of Dyno data, want data on a particular model bike?

[yorkie_chris]

Originally Posted by fizzwheel

Not really is it...

I'd say that depends how the power is being delivered, it's not all big number.

Originally Posted by ThEGr33k

Well looking at the numbers for DIN correction they sound about right. I agree thought that crank BHP is a load of rubbish, utterly useless. At least RWHP take into effect all losses through the Gearbox etc.

Crank HP would benefit the big Twins as they have heavy gearboxes to deal with two bix power pulses where 4cylinders have 4 smaller ones so can use lighter boxes.

By that analogy I'd say that knowing the RWHP would be even more important.

Also, a physically large and strong gearbox is not necessarily inefficient. It will have a lot of inertia, but a dyno run is pretty close to steady state conditions when you think about the inertia of the gearbox shafts and cogs compared to the inertia of a heavy back wheel, tyre, crank and half a tonne of solid steel dyno roller!

RWBHP is the only meaningful measurement. Anything else is "numbers down the pub"

[yorkie_chris]

P.s any graphs you have for the original 749cc 85-87 GSXR750 in any state of tune Please

Originally Posted by yorkie_chris

P.s any graphs you have for the original 749cc 85-87 GSXR750 in any state of tune Please

No point, flat as a pancake cos they are carp

[yorkie_chris]

OK when I have put a 1216cc engine in it you can have a go. If you come back smiling or shaking, you can pay the fuel bill

[Skip]

What about a Honda Blackbird against an FZ1 Fazer (-06 on) and a 03-07 model Tuono

Ta!

[ophic]

Originally Posted by yorkie_chris

OK when I have put a 1216cc engine in it you can have a go. If you come back, you can pay the fuel bill

corrected for you

Originally Posted by ophic

corrected for you

Was gonna say, the cheeky beggar was been a bit generous lol.

My track record, I'll bin it, that'll have me shaking. Least it'll only cost me the fuel bill

Can you compare a 1996 Yamaha Thunderace to a 2000 Yamaha R1?

Or.........just the chart for the R1 would be great

Cheers,

Paul

Originally Posted by yorkie_chris

P.s any graphs you have for the original 749cc 85-87 GSXR750 in any state of tune Please

Closest I got is a 95' SRAD 750. Got a GSXR1100 as I know youll like that and also a propper old school katana!

Originally Posted by Skip

What about a Honda Blackbird against an FZ1 Fazer (-06 on) and a 03-07 model Tuono

Ta!

Here you go. The FZ1 has some good top end there!