33bhp Dyno Resutls

Originally Posted by ThEGr33k

Not having a go at you Simon. Just being overly blunt.

Not a problem at all. It is good healthy debate.

Originally Posted by simonDyna

Actually, for bike tuning, yeah. It depends on what you are using the bike for and how far you want to take its development.

So what do you gain from crank tuning?

[yorkie_chris]

We are not on oldskoolsuzuki.info here, or topfuellunatics.com or wherever those lads go to chat

Perhaps I should have elaborated. But unless you are into seriously well moneyed racing or prototyping, I cannot see why you would need an engine dyno. Even forced induction bikes of 250+ bhp still have stock gearboxes (as far as losses are concerned).

Simon does do some fairly serious engine tuning it appears...

Originally Posted by ThEGr33k

Josh you still on 33bhp?

I'm still in my restriction period, yes

Originally Posted by joshmac

I'm still in my restriction period, yes

Oh, why put it like that? How long you got left of your "Restriction Period"?

Originally Posted by ThEGr33k

Oh, why put it like that? How long you got left of your "Restriction Period"?

'Cause I just got home from work so I'm rather tired
I'll be on full power early June next year

Originally Posted by joshmac

'Cause I just got home from work so I'm rather tired
I'll be on full power early June next year

Same for me... Be in bed in a min. Nice 12 hour shift isnt so nice huh? Did 6 bloody shifts then I get 1 day off lol

Not so long for you to go then before the accelerator makes more change

Just to prove my point...
An SV 650 produces around 45ft-lbs of torque. that is then multiplied by the primary drive, whatever gear your in and final drive to give us a mechanical advantage. so that would be....

45x2.088= 93.96 for primary

Then 93.96x2.461=231.23 for first gear

and 231.23x3=693.7 for final drive, taking away say 10% for loses in transmission to make it easy is 624.33 ft-lbs of torque at the rear wheel in first.

When the same is done for top gear you end up with only 222.7ft-lbs after assumed loses.

Obviously these arn't the numbers a dyno shows us, so they must convert it somehow. Can someone fill in this gap for me? I assume it must be run in 2 gears then it can use the different figures to work out the actual amount that is on tap after all loses?

[hindle8907]

lmao you lot have well and truly baffled my head with all this talk of .
Cranks + 555 FT-LBS - 43x2 , = Dyno - 2 to the power of 8 = WTF lol .