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2005 R1 Bhp
Chaddy - 3/3/13 at 06:50 PM

What figures should go on the IVA form for Bhp and Rpm for my 2005 R1??

Cheers
Dave

adithorp - 3/3/13 at 08:06 PM

They don't want to know the BHP, just the revs at which it makes max BHP. They only use it to work out the revs at which to do the noise test (3/4 of max BHP RPM). If you don't give them a figure they'll test it at 2/3 max RPM.

So tell them it's 12000 and they'll test noise at 9000rpm, tell them 10000 and it'll be noise tested at 7500. So obviously the lower you put the easier the noise test is to pass. Push your declaration to far and they'll know it.

Think I put 11500 and they were happy with that, though an 04-06 5vy officially makes 180bhp @ 12500rpm.

motorcycle_mayhem - 3/3/13 at 09:31 PM

180bhp @ 12500rpm

I wish mine would...

adithorp - 4/3/13 at 08:34 AM

quote:
Originally posted by motorcycle_mayhem
180bhp @ 12500rpm

I wish mine would...


Don't forget Yamaha include 10bhp in that from ram air. Maybe they do get it at close to 200mph... maybe they don't. You'll never get it in a kit. I suspect they (and many others) add in a little bit of boasting as well. 160bhp seems closer to reality in the bike on rollers. My Fury made 172 on a "conservative" dyno, which I'm was quite happy with.

ps. Just had a look at a copy of my SVA application . I put 11250rpm.

Chaddy - 4/3/13 at 08:58 AM

Thanks for the info adithorp