BHP estimate from a 'Factory'?

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Miff_UK

Miff_UK

Joined
Apr 19, 2009
Messages
149
Guys, need some advice.

I'm thinking of getting a 2004 onwards Factory as a track day bike as I have sold my gen 1 track bike.

What should I expect 'out of the box' BHP wise?

What's the biggest gain per pound ? Air box? PC3? Pipe ?

I need to budget these as part of my purchase price.

Any advice appreciated

Miff
 
Usual stuff...evo airbox,map2 decent cans that's about it.....think these respond better to PCv. Of course a big bore is the pinnacle of power but also cost
 
Power out of the box will be between 120-130, I have had loads on the dyno and these are the figures we keep seeing. As for mods for more power, as red said filter kit(evo works better on the gen2 than the renegade style), exhaust full system is obviously best, I will soon be selling our own system(watch this space). For ultimate power it has to be a bigbore, we do an 1103 kit and get fantastic results, 120bhp at 7000 rpm and 140-150 at the top. Hope this helps.

Mark
 
Cheers guys, had 119 on my gen 1 so would be a bit disappointed with less than 130 on a replacement. Apart from the light wheels, I'm not sure I'd notice much difference by buying a gen 2 factory. But if I want a V twin track bike, where next?.......
 
Personally an RSV as a track bike is fine but they will never have the top end speed or power of an iL4.

My 13 year old Gen 1 small valve is making around 128 bhp but has quite a few mods and tweaks , I can run within the top third of the inters group comfortably (without pushing or stressing the bike in anyway).

I would say get the handling sorted first as you will get the most gains from that.
 
Cheers Kiwi,

I'm running back third of the fast lads in the UK ( 1:49 at cadwell), don't have a problem with handling and am catching my 'markers' round the corners, but up against GXR750s mid way down the straight I'm getting left, and feel a few more ponies might help. 135bhp would be fine.

Ideally i could also do with a lighter bike to reduce braking distances and improve direction changes (hence the Factory Oz wheels), but I'm not aware of anything which will give me that in a V Twin. Apart from a RC8, which are silly money. I have no interest in IL4s

Any ideas ?
 
The last rsv1000 made with the largest valve combination are 143 bhp. For big power as Tash said its big bore
 
Reducing weight is an interesting idea for the ape.

Remove all unecessary wiring , panel insulation , change to 520 series chains and sprockets, replace oil and water rads with aluminum ones, maybe even run total loss electrics and ditch the alternator/flywheel (engine spins up like a bloody two stroke and has no engine braking)

As Mark & Mark say big bore for big power, big heads etc, it depends on your wallet size.
 
Lower weight is probably better to go for then more power since the speed on the straight is entirely dependent on how fast you drive through the turn. I have done the simple things for more power open air box, eprom and exhaust the rest of the time I put on reducing weight as I hope to get down to 165kg. Hope that it will be a nice suprice for the others next year on the track.
Just now working on the electric to take away all cables i dont need
 
Racerbengan said:
Lower weight is probably better to go for then more power since the speed on the straight is entirely dependent on how fast you drive through the turn. I have done the simple things for more power open air box, eprom and exhaust the rest of the time I put on reducing weight as I hope to get down to 165kg. Hope that it will be a nice suprice for the others next year on the track.
Just now working on the electric to take away all cables i dont need
Click to expand...

Sounds interesting, I'm looking at track bikes (which have had the work done) and road bikes ( with a view to doing the work). let me know what you achieve weight wise, i'll try to match it.

Miff
 
redratbike said:
The last rsv1000 made with the largest valve combination are 143 bhp. For big power as Tash said its big bore
Click to expand...

What years(s) would that be ? My mates '04 Factory made 135, so that's what I'm aiming for. With the carbon fitted and the removal of all the 'road' parts, I'm hoping I'll notice a difference.

Miff
 
What mods did your mate have? The figure red quoted will be at the crank not the wheel, my 06 Factory track bike with evo filter kit, Arrow cans and PC5 makes 131 at the wheel(for now:devious, after my winter rebuild I am hoping for 150+). As said before the Factory isn't all about power, the lighter wheels and Ohlins make a massive difference over the Gen1, I have run both on track.
 
Tash said:
What mods did your mate have? The figure red quoted will be at the crank not the wheel, my 06 Factory track bike with evo filter kit, Arrow cans and PC5 makes 131 at the wheel(for now:devious, after my winter rebuild I am hoping for 150+). As said before the Factory isn't all about power, the lighter wheels and Ohlins make a massive difference over the Gen1, I have run both on track.
Click to expand...


Cheers Tash, that's exactly what I wanted to hear. My local Dyno shop can sort the BHP from 131, but the suspension & wheels combo makes the extra money worth spending

Miff
 
Miff_UK said:
It's not a good example ( cos there's no real straights) but here's me at Oulton chasing my markers. GSX750 & trick R6. My Gen 1 made 119 BHP

Miff-014 - YouTube



Miff
Click to expand...


If the guys in front of you shifted their heads and shoulders off the bike into the angle of lean rather than moving them the opposite way, they might of actually got their knees down lol

Classic example of poor upper body position when hanging off the bike:devious
 
Slackey said:
If the guys in front of you shifted their heads and shoulders off the bike into the angle of lean rather than moving them the opposite way, they might of actually got their knees down lol

Classic example of poor upper body position when hanging off the bike:devious
Click to expand...

And they have been to race school ! Still fast though, buggers.
 
Chances are with better body positioning they will be even faster. They only had the power in the straights, you had them on every bend to be fair.
 

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