talleywhacker85 Posted June 20, 2009 Report Posted June 20, 2009 Just curious hav a banshee with timming set on +4, what would happen if i put it on +10? I run 110 octane and klotz. Would it hurt it I know someone who has a stock bike and runs it on +10. Quote
2004LEBanshee Posted June 20, 2009 Report Posted June 20, 2009 Not totally sure. Im sure you have enough oct in you fuel but I think you want to have real high compression to even run that timing. I would imagine it wouldnt be to usefull. Ive always hear +4 for stock. Someone else could probably help you more. Quote
TwistedSheeRida Posted June 20, 2009 Report Posted June 20, 2009 hey talleywhacker, i wouldnt suggest it unless your bike is set up for it compression wise and motor work. if not your just looking for problems. detonation and prob start backfiring i wouldnt do it. theres other ways to get more power out of your bike. Quote
Onesickcrewcab Posted June 20, 2009 Report Posted June 20, 2009 Heres a list of problems that you would most likely see. Spark plugs backing out, Bike running real hot, possible hole in the piston, lose of porcelain around spark plug electrode, stress on the rods due to detonation. You cant run that much timing on gas. Now if your were on alky I would say go for it, just leave it fat. Quote
blowit Posted June 20, 2009 Report Posted June 20, 2009 Just curious hav a banshee with timming set on +4, what would happen if i put it on +10? I run 110 octane and klotz. Would it hurt it I know someone who has a stock bike and runs it on +10. Depending on mods and tuning, you should be fine with it. Keep in mind that set timing and "actual" timing are never in agreement. What I mean is pick up gap and other factors and tolerances will dictate how much advance you "really" get. ie, +10 may work great but may only be giving you +7 actual degrees of advance. I would recommend to start at +6 and go up +1 with a plug check at every interval. Will know when you hit the wall. READ CLOSELY, when the bike pulls hard but fails to pull way up top like it just cannot quite get there, you are there, back it off!!! Pushing this wall will hurt the engine. It is best to monitor EGT when doing this because as noted, you will increase your combustion chamber temps and decrease the pipe temp. I would guess that you will find the "happy spot" around +8. We have done extensive research in timing and head design and I will say that if you have to push to +10, you probably need head work to increase the volatility of the mixture. way advanced timing does nothing but heat up the mixture at the cost of negative engine work. The closer to zero degrees timing you can run to get max power, the more efficient your engine is. To put it dumbly, increase compression and turbulence rather than bumping timing. B Quote
stroking Posted June 21, 2009 Report Posted June 21, 2009 well,every setup must be different because i had a banshee here that was bogging down really bad,so i tried every jet change i could with no luck so i then tried timing,i set it at +5 and bog got ALOT better so i went for +9 and no only was the bog gone but the bike felt like it gained about 5-6hp. i rode it for about an hour straight without shutting it off....(rode it HARD) and i had zero problems......this is on a stock crank,stock size pistons on 93 pump gas. this bike has a rickstator,new flywheel and cdi box also Quote
captainhowdie Posted June 21, 2009 Report Posted June 21, 2009 I have stock stroke, stock port with noss head 20cc domes, vf3's, toomey t5's, 320 mains and 27.5 pilots, and a chariot adjustable plate set @+4. 155 lbs compression in each cyl. I run torco 110 with klotz mixed at 32:1. My question is this: Can i bump the timing any higher than +4? And if i do what should i set it at? and will i see any power gains? Any opinions would be helpfull. Thanks! Quote
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