grisolm1
Just got it firing!
- Joined
- Nov 3, 2008
- Messages
- 17
Looking to get about 10-15 HP more. Have a Quat-D muffler, partially opened airbox and stepper tubes plugged. Bike runs sweet with no flat spots or popping, just want to go a bit faster without dumping in multi thousands. Here are some other areas I'm looking into for when the bike is out of warranty this winter. Anyone out there care to weigh in?
Are there any worthwhile Cams that could be used in the Griso1100 without causing valve to piston interference? Do the aftermarket cams from the older models work or are there differences in sensors etc that prohibit this? Bike has low enough gearing that I could afford to loose some low end if the top end is increased significantly.
How about the benefits of better flow around the valve seat area with a 3 or 5 angle valve seat grind and some mild rework in the valve pocket area.
What would be the max I could mill the heads and stay away from interference. This of course depends on the cam but does anyone know for a stocker, how much there is to play with. The real way to tell is by claying the pistons but I'm not touching the bike till after riding season. The stock pistons have been lightened from the older models, I'm guessing there is less material in the newer pistons to allow flycutting for valve clearance. Remember that when you go to longer duration cams the intake valve stays open longer into the compression stroke so increased static compression is usually needed.
The real question, will our HAL 2000 style ECU defeat any gains here? I have one possible solution I'm looking at, a tip from a Harley rider friend. Innovate Motor sports sells a wideband O2 Sensor model LC-1 that does 2 things. First it is a Wideband sensor that will give continuous AFR readings but more importantly it can offset the ECU. For instance it can supply the ECU a standard looking O2 sensor signal but actually do this around a programmed AFR of say 13.5 or what ever you choose. I can get one from my freind for next to nothing as he has gone to a PCV on his bike and never used it. They are $200 retail.
Are there any worthwhile Cams that could be used in the Griso1100 without causing valve to piston interference? Do the aftermarket cams from the older models work or are there differences in sensors etc that prohibit this? Bike has low enough gearing that I could afford to loose some low end if the top end is increased significantly.
How about the benefits of better flow around the valve seat area with a 3 or 5 angle valve seat grind and some mild rework in the valve pocket area.
What would be the max I could mill the heads and stay away from interference. This of course depends on the cam but does anyone know for a stocker, how much there is to play with. The real way to tell is by claying the pistons but I'm not touching the bike till after riding season. The stock pistons have been lightened from the older models, I'm guessing there is less material in the newer pistons to allow flycutting for valve clearance. Remember that when you go to longer duration cams the intake valve stays open longer into the compression stroke so increased static compression is usually needed.
The real question, will our HAL 2000 style ECU defeat any gains here? I have one possible solution I'm looking at, a tip from a Harley rider friend. Innovate Motor sports sells a wideband O2 Sensor model LC-1 that does 2 things. First it is a Wideband sensor that will give continuous AFR readings but more importantly it can offset the ECU. For instance it can supply the ECU a standard looking O2 sensor signal but actually do this around a programmed AFR of say 13.5 or what ever you choose. I can get one from my freind for next to nothing as he has gone to a PCV on his bike and never used it. They are $200 retail.