RSV power (pooher)

Gixerhowie · Jun 20, 2009

I know theres a zillion old threads on this but i want to ask before looking! :jack

I've dug an old Dyno sheet out for my 2000. It reads 110.6bhp @ about 9400rpm & 68.8 ft-lbs max @ around 7000rpm. The curves aren't linear and show a drop between 3000 - 5400rpm until the power curve rises more consistantly. I assume this was done on the standard bike before mods to satisfy emissions legislation? :dunnohe original chip has now gone for one of Dr Rossi's and the airbox/wire mods made. Going back to standard can though until i find comprimise on noise/power.

I'm having it set up at Dynamax soon, but in standard trim, do these figures look right? I run 16/44 gearing and the front never gets light on hard throttle?

I'll let you know how the set-up goes by the way.

OZMILLE · Jun 20, 2009

Gixerhowie said:
I know theres a zillion old threads on this but i want to ask before looking! :jack

I've dug an old Dyno sheet out for my 2000. It reads 110.6bhp @ about 9400rpm & 68.8 ft-lbs max @ around 7000rpm. The curves aren't linear and show a drop between 3000 - 5400rpm until the power curve rises more consistantly. I assume this was done on the standard bike before mods to satisfy emissions legislation? :dunnohe original chip has now gone for one of Dr Rossi's and the airbox/wire mods made. Going back to standard can though until i find comprimise on noise/power.

I'm having it set up at Dynamax soon, but in standard trim, do these figures look right? I run 16/44 gearing and the front never gets light on hard throttle?

I'll let you know how the set-up goes by the way.

Definately right on the stock power, have heard of 108 to 116 for the earlier models of which mine is........................

There is a SHAME file directory here on the forum for those of you who continue to abuse your right to keep that standard can, you will be reported and then flogged for such hazardous abuse.......

irate

You might see some small improvement, however I thought rule of thumb for power was greater volume of air in (done) and greater volume of air out, and this is where that standard can will cause problems, not to mention it is the cause of that dip you were talking about.

On 16/44 your front should be pointing at the sky on hard throttle, have them check it out (ditch the anchor 1st) and hopefully you will see/feel some better HP numbers.

Cheers Pete

Gixerhowie · Jun 20, 2009

Sod the standard can and sod the noise. I'll have it on the dyno with the RSV race can. Fook em all. Having read some technical threads on other sites, without significant engine work, the key is as you say, greater volume air in - more gas out. This can be achieved fairly simply. Ditch the standard filter, create easier breathing, provide a less restrictive exhaust and enjoy the low down mid range grunt. Don't care about topend and increase in horsepower, they are only a consequence of increasing the torque.

:thumbup:thumbup

Mr_Damage · Jun 20, 2009

Here is my latest Dyno Graph
Carbon Can Co. Silencer, Piper Cross Filter, Rossi Chip.
Runs well, nice and smooth, power delivery.
I will post another graph once I get the CO, Throttle bodies and trims set up properly.

C:\Documents and Settings\Office\Desktop\Pauls dyno Runs\ROSSI TORQUE.pdf

Mr_Damage · Jun 20, 2009

Gixerhowie · Jun 20, 2009

Have another go at attaching your image. its unopenable at the mo.

OZMILLE · Jun 20, 2009

Gixerhowie said:
Sod the standard can and sod the noise. I'll have it on the dyno with the RSV race can. Fook em all. Having read some technical threads on other sites, without significant engine work, the key is as you say, greater volume air in - more gas out. This can be achieved fairly simply. Ditch the standard filter, create easier breathing, provide a less restrictive exhaust and enjoy the low down mid range grunt. Don't care about topend and increase in horsepower, they are only a consequence of increasing the torque.

:thumbup:thumbup

Thats what we like to hear, if you havent done much to the airbox yet, you need to email HOOKED for one of his, awesome kit which will bring a much greater volume of air in.

Cheers

A303 · Jun 20, 2009

Damage mate, nip down your local college as they do courses for the computer-challenged:nana

Mr_Damage · Jun 23, 2009

http://www.archmotorcycles.co.uk/ROSSI%20TORQUE.jpg

One of these should work :confused

Mr_Damage · Jun 23, 2009

oops thats a bit big

T Virus · Jun 24, 2009

dont you mean 118.5bhp !? :dunno

thats good power !! :thumbup

Mr_Damage · Jun 24, 2009

Yep it is BHP, haven't quite figured out why it says ch, prob a software bug ??

T Virus · Jun 25, 2009

ahhh... it was just that you said in the 1st post it only made 110.6bhp !? :confused

DrRossi · Jun 25, 2009

No that was Gixerhowie

Tash1 · Jun 26, 2009

Just had mine custom mapped at Dynomax its like a new bike:thumbup. Its a 2001 with twin acro system, open air box(top removed) Dr Rossi chip 54mm TBs got 122bhp and 72ft well happy. Next step 1060 big bore and 57mm TBs, theres a guy on RSVR.net with these mods reckons 150bhp is poss:doug

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