Log in

View Full Version : My CBR600 dyno graph

Lozzo
22-07-08, 04:50 PM
I didnt think it was that bad at all, considering it is 10 years old,
has 34,000 miles on the clock, has been caned to fook on numerous
trackdays and desperately needs a full service. Honda claimed 100bhp at
the crank when this model was new, mine still makes 95.13bhp at the
rear wheel.

http://farm4.static.flickr.com/3100/2692383227_79a0075cbc_b.jpg

There's some cleaning up of the fuel/air mixture needed in the
midrange, which can be dialled out by dropping the needles down one
notch and cleaning the K+N air filter that's fitted. The fuel/air ratio
in the midrange won't improve the overall bhp figure but it will
improve the driveability and torque available from 6000 upwards.
Dropping the needles is something I can do when I have it apart in a
few days to service it. I'm happy enough with that graph though.
Demonz
22-07-08, 04:54 PM
Good old Honda. Is the line across the middle the torque curve? Flat like a twin.
Lozzo
22-07-08, 04:58 PM
Yes, the flat line is the torque curve...or some old person in a red shirt has just died on Casualty.
St0rmer66
22-07-08, 05:37 PM
I wouldn't bother messing with that, it's nigh on perfectly smooth!
Lozzo
22-07-08, 05:44 PM
There's slight dips in the power curve that correspond directly with the large dips in the fuel/air mixture graph. Sorting that out will make it even smoother and improve the midrange power and torque curves. Call me fussy, but I want it perfect if I can possibly get that.
Blue_SV650S
22-07-08, 06:53 PM
Why did you get it dynoed??? ... or was it a freebiee?!!? :)
Tim in Belgium
22-07-08, 07:28 PM
I'd love to have mine dynoed (approx 30k miles) but only out of curiosity. And then hand copies out to every 'Blade, R1, GSXR, 911 (delete as appropriate) that I pass on track :) (Probably only to be handed an even smaller one back off a CB500/supermoto/125 rider who has anihilated me!).
Blue_SV650S
22-07-08, 07:31 PM
I'd love to have mine dynoed (approx 30k miles) but only out of curiosity. And then hand copies out to every 'Blade, R1, GSXR, 911 (delete as appropriate) that I pass on track :) (Probably only to be handed an even smaller one back off a CB500/supermoto/125 rider who has anihilated me!).


You'd be better off photocopying your 'sacks' and handing photocopies of them round!!! :D
ThEGr33k
22-07-08, 08:11 PM
Cool 95bhp is very respecatable at the rear! :D
Sid Squid
22-07-08, 09:12 PM
Wonder how much my Kwak makes now?

Probably less than an SV650.
northwind
22-07-08, 10:16 PM
I didnt think it was that bad at all, considering it is 10 years old,
has 34,000 miles on the clock, has been caned to fook on numerous
trackdays and desperately needs a full service.



Barely run in really :cool: