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RB 250 Exhaust
Posted: Wed Jan 14, 2009 10:28 pm
by AndyS
Am wondering about getting the 250 kit when it arrives, and would think, due to the CC, it would be a farily torquey motor.
Which exhaust pipe would suit the kit best, the more revvier one or the less revvier one,
if that makes sence.
Will probably have the gear ratio at 4.9
ta
Re: RB 250 Exhaust
Posted: Wed Jan 14, 2009 10:31 pm
by RinB
Well Im doing one and Im putting a Franspeed race on it.
Spoke to andy and sorted with him so we'll see how it goes

Re: RB 250 Exhaust
Posted: Wed Jan 14, 2009 11:01 pm
by bsso78
The RB250 will easily pull 4.6 overall ratio with the revvy exhaust.........Its got a lot in common with a Peperami

Re: RB 250 Exhaust
Posted: Wed Jan 14, 2009 11:03 pm
by RinB
bsso78 wrote:The RB250 will easily pull 4.6 overall ratio with the revvy exhaust.........Its got a lot in common with a Peperami

Peperami
Spat my drink out on that one Brill.
I certain it will my RB22 on Reflections pulled 4.6 no probs
Re: RB 250 Exhaust
Posted: Wed Jan 14, 2009 11:11 pm
by bsso78
I had 8500rpm showing in 4th on a rich carb,at 11mph per 1000rpm its shifting a bit.........3 blokes on sports bikes on the A64 all did a double take one after the other when i passed them......and i was going in the same direction as them

Re: RB 250 Exhaust
Posted: Thu Jan 15, 2009 12:09 am
by corrado
bsso78 wrote:I had 8500rpm showing in 4th on a rich carb,at 11mph per 1000rpm its shifting a bit.........3 blokes on sports bikes on the A64 all did a double take one after the other when i passed them......and i was going in the same direction as them

With 4.6

Re: RB 250 Exhaust
Posted: Thu Jan 15, 2009 3:32 am
by martints1
AndyS wrote:Am wondering about getting the 250 kit when it arrives, and would think, due to the CC, it would be a farily torquey motor.
Which exhaust pipe would suit the kit best, the more revvier one or the less revvier one,
if that makes sence.
Will probably have the gear ratio at 4.9
ta
...I think the Fat-Mamba will to a very good job with the RB250, but you have to get the exhaust port higher....
Re: RB 250 Exhaust
Posted: Thu Jan 15, 2009 9:44 am
by rossi46
will the Franspeed race from the RB22 fit the RB 25 ??
Re: RB 250 Exhaust
Posted: Thu Jan 15, 2009 10:09 am
by MAB
I believe it does according to RinB you might want to check with him.
MAB.
Re: RB 250 Exhaust
Posted: Thu Jan 15, 2009 12:20 pm
by RinB
Ive check with Andy Francis & he has said it will fit no problem as for performance well
I dont believe its been tried yet. So this engine Im doing might be the first !
Andy & I, have discussed and it should fit better !!
BSSO was it the AF exhaust on yours.
Mark what will do is if yours doesnt arrive I can use my One m8 to get you away.
Your Breast are looking nicer every Day
Smiffy