put my SF on the dyno.
#1
put my SF on the dyno.
I have a 340 kit, Two bros Fully exhaust, dynojet kit, snork out. Runnign 128 main and needle second clip. 1.75-2 turns on a/f screw.
28.3 WHP and 21 Ft lb. not bad for the little bike.
My afr was a little rich like 12.9-13.5 WOT but its definitely acceptable. Especially when its 90 degrees out. Itll be safer for winter months.
My cruising afr under 5k was acceptable like 13.5-14
After 5k the ignition switches to more advanced curve so it ran a little leaner until half throttle which was normal.
28.3 WHP and 21 Ft lb. not bad for the little bike.
My afr was a little rich like 12.9-13.5 WOT but its definitely acceptable. Especially when its 90 degrees out. Itll be safer for winter months.
My cruising afr under 5k was acceptable like 13.5-14
After 5k the ignition switches to more advanced curve so it ran a little leaner until half throttle which was normal.
Last edited by sw0ggd0gg; 07-16-2010 at 02:40 PM.
#4
Do you have any dyno sheets?
I would be interested to see what rpm your motor makes max HP and torque at?
Here are a few of my sheets from my dyno run. I have a BB351cc, web 101 cam, ported & polished, FMF powerbomb, 2Bro silencer, BB34mm carb, and kdx snorkle.
I would be interested to see what rpm your motor makes max HP and torque at?
Here are a few of my sheets from my dyno run. I have a BB351cc, web 101 cam, ported & polished, FMF powerbomb, 2Bro silencer, BB34mm carb, and kdx snorkle.
#7
You do know that Stochiometric efficiency of a combustion engine is 14.7:1
Anything less than 14.7:1 is rich, anything more than that is lean
Dont believe me, call me a liar then read it for yourself
http://en.wikipedia.org/wiki/Air-fuel_ratio
Anything less than 14.7:1 is rich, anything more than that is lean
Dont believe me, call me a liar then read it for yourself
http://en.wikipedia.org/wiki/Air-fuel_ratio
#8
You do know that Stochiometric efficiency of a combustion engine is 14.7:1
Anything less than 14.7:1 is rich, anything more than that is lean
Dont believe me, call me a liar then read it for yourself
http://en.wikipedia.org/wiki/Air-fuel_ratio
Anything less than 14.7:1 is rich, anything more than that is lean
Dont believe me, call me a liar then read it for yourself
http://en.wikipedia.org/wiki/Air-fuel_ratio
You can run your bike at 14.7, but I won't.
Do a search for best power air fuel ratio. Let me know what you find.
Looking at those numbers again, he's so close to perfect at WOT, I wouldn't touch the main.