Join Date: Jan 2012
Location: Bremerton, Washington
I haven't read all the posts, so some of this might be a repeat of what's been said: I have an '06 Vee.
The TRE is a good idea and helps in 5th and 6th. A 4* timing advancer is good, and has a positive effect on gas mileage too. High compression pistons are good helpers and SV or custom cams help some. Bigger bore, not so much because the limiting factor is the size of the injectors. And you can't switch them out or use an SV head and injectors because they are not a match for your ECU. You can take the snorkel off your air box for slightly better breathing. I use Delks on mine and I've done all this stuff. Aftermarket exhaust is much lighter. I use a PCFC with a dyno tune. Runs perfectly. I have 100 RWHP. That's about all you can hope for and still have a good street Vee.
I second using PiRSquared Racing. He did my work and is very personable as well as knowledgeable. My opinion of learning to corner better by going to a school is that it's helpful, but the Vees only corner so far and your brake pedal and kickstand mount start rubbing. I only do that on the track because you can't trust public roads. More HP coming out of corners is more fun. That simple. AND, you are just a degree or two from a low side if you are rubbing solid stuff on the bike.
On gearing: Acceleration is simply HP versus weight when it's transferred to the pavement in a reasonable manner. Gearing lower on a 100 HP bike is a waste of effort and money unless you ride two-up or heavily loaded and 6th is laboring at freeway speeds. Coming out of a corner, unless you are crawling, will be done in 2nd, 3d or 4th. If you gear down substantially with sprockets, you have to shift earlier so you are using a higher gear to go the same speed. You have accomplished nothing. In low gear, the limiting factor is keeping the front wheel on the ground. Once you have sufficient acceleration to lift the front wheel, gearing lower accomplishes nothing but making you shift earlier. I use 17:43 gearing because I ride double a lot and it's more effective on the highway. My two cents worth.
Last edited by bobbyvstrom; 04-07-2019 at 06:27 PM.
Reason: Mistake in name of exhaust muffler.