K&N questions
04-10-2005, 07:44 PM
#1
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Join Date: Apr 2005
Location: Montreal
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K&N questions
I own a 1999 Firestorm/Superhawk which is basically stock engine-wise. I was looking at the possibly of adding a set of slip-ons but recently learned that police forces here in Quebec, Canada, are apparently set to begin doing decibel checks of bikes (thank you all you lovely Harley types!!!!) so I think I may hold off on this until I see how things develop. In the interim, I am seeking a little boost in performance and so will be dropping the gearing slightly by going to a 43 teeth rear sprocket. I was wondering if switching to a K&N air filter would provide me with a slight gain in power (hoping for something in the mid-range if possible)? If so, would any jetting changes be required (shimming needles?). Thanks in advance.
Micky
Micky
04-11-2005, 08:10 AM
#2
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Re: K&N questions
I lived in Montreal from 1996-2002 and every season everyone said the cops were starting to do decibel checks on bikes. Never heard of anyone actually getting a ticket other than from guys who liked to get attention by talking about what happened to his brother's girlfriend's friend one time last year. I wouldn't be too worried, though the remote possibility is there. I wouldn't do anything like redline the bike near a cop, though.
As for the power question, I have not tried that on a Superhawk. However, I did put a K&N and a dynojet kit on a Ninja with stock exhaust. I found that it had much better top end power. More importantly, it pulled to the redline more quickly. Stock, it was a bit lean, so struggled above 7000 rpm, being fuel starved. It always seemed to run out of pull before it got anywhere near the redline. With the K&N and rejetting, I had more problems bouncing off the rev limiter, as the engine built power much better and was still getting stronger when it hit the top.
As for the power question, I have not tried that on a Superhawk. However, I did put a K&N and a dynojet kit on a Ninja with stock exhaust. I found that it had much better top end power. More importantly, it pulled to the redline more quickly. Stock, it was a bit lean, so struggled above 7000 rpm, being fuel starved. It always seemed to run out of pull before it got anywhere near the redline. With the K&N and rejetting, I had more problems bouncing off the rev limiter, as the engine built power much better and was still getting stronger when it hit the top.
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