bluev8s10blazer Posted November 27, 2006 Report Share Posted November 27, 2006 i just got back from the dunes where i rode my 05 banshee for the first time with the new cool head. my problem is that we did alot of drag racing and i keep on losing and i know its not me because we switched bikes and my bike still loses. i have an 05 banshee with a coolhead 20cc domes, cpi pipes, v-force 3 reeds. the bike i kept on losing to was a 96 original motor, toomey pipes and v-force reeds. his seems to rev out alot faster. im pretty sure jetting is my problem. could someone tell me where you think i should start out jetting wise and how i would be able to tell if the jetting is close. i am new to the 2-stroke world so as much help as possible would be great Quote Link to comment Share on other sites More sharing options...
David Keith Posted November 27, 2006 Report Share Posted November 27, 2006 i just got back from the dunes where i rode my 05 banshee for the first time with the new cool head. my problem is that we did alot of drag racing and i keep on losing and i know its not me because we switched bikes and my bike still loses. i have an 05 banshee with a coolhead 20cc domes, cpi pipes, v-force 3 reeds. the bike i kept on losing to was a 96 original motor, toomey pipes and v-force reeds. his seems to rev out alot faster. im pretty sure jetting is my problem. could someone tell me where you think i should start out jetting wise and how i would be able to tell if the jetting is close. i am new to the 2-stroke world so as much help as possible would be great What type of air filter &/or air box do you have? Are your carbs stock? Give us a little more detail & we can offer suggestions... Does it have good compression? Quote Link to comment Share on other sites More sharing options...
baddsheee Posted November 27, 2006 Report Share Posted November 27, 2006 What is your elevation and temps? Who's bike did borrow, sometimes people don't want to tell you what they got. What jets are you running right now? Quote Link to comment Share on other sites More sharing options...
bluev8s10blazer Posted November 27, 2006 Author Report Share Posted November 27, 2006 stock carbs with single K&N filter. running at sea level. i know that nothing was done to the bike, it is my bosses bike. i just pulled one of the carbs apart and it has a 330 main. yes it has good compression, i did a compression test and got 160psi. the temperature this weekend was about 50 degrees but i usually ride in warmer weather around 70ish Quote Link to comment Share on other sites More sharing options...
csrmel Posted November 27, 2006 Report Share Posted November 27, 2006 i think the problem might be that youre running drag pipes with unported cylinders. Quote Link to comment Share on other sites More sharing options...
bluev8s10blazer Posted November 27, 2006 Author Report Share Posted November 27, 2006 i think the problem might be that youre running drag pipes with unported cylinders. could that really be my problem? i plan on getting a port job done this winter but didnt think that it would make that much of a difference because the difference is huge Quote Link to comment Share on other sites More sharing options...
Truckracer Posted November 27, 2006 Report Share Posted November 27, 2006 could that really be my problem? i plan on getting a port job done this winter but didnt think that it would make that much of a difference because the difference is huge Sure could, what CPI's are you running? The CPI is an excellent drag pipe on a properly built motor. But not so much on a stock engine. Air box lid off I guess? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 29, 2006 Report Share Posted November 29, 2006 it's cause he has a 96 (I have a 96..ha ha...) J/K... The jetting doesn't sound that far off, but...I agree. You're not going to benefit from those pipes as much as a bike with a dune or drag port. Then you need carbs to match... Toomey piped bikes run very, very well when tuned right on stock ports. At 160 PSI...what kind of gas/oil are you using. You're on the verge of needing a pump/race gas mix at that compression.... Quote Link to comment Share on other sites More sharing options...
bluev8s10blazer Posted November 29, 2006 Author Report Share Posted November 29, 2006 im mixing high octane and 93 octane. i guess i will just have to port it and check to see if it is any better Quote Link to comment Share on other sites More sharing options...
moneybags Posted November 29, 2006 Report Share Posted November 29, 2006 Is your clutch good? Was the gearing the same on both bikes. Maby he has the new blue powerbands...LOL Quote Link to comment Share on other sites More sharing options...
bluev8s10blazer Posted November 29, 2006 Author Report Share Posted November 29, 2006 Is your clutch good? Was the gearing the same on both bikes. Maby he has the new blue powerbands...LOL yeah my clutch is doing good. his just revs out faster then mine. i figured putting the new head on would make it rev out faster. i guess i have other problems though. he is down one tooth in the front and im still stock. i can tell its a motor thing though not gearing Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 29, 2006 Report Share Posted November 29, 2006 You've got it backwards. A head with smaller domes will not let it rev out as quick or as far....barely, but...it will get you more torque and probably a few HP.... You could probably advance your timing a bit more, but you might need to run straight race gas to be safe. Gearing plays a big role, don't kid yourself, as does tires, suspension....and rider skill. Quote Link to comment Share on other sites More sharing options...
Ducman Posted November 29, 2006 Report Share Posted November 29, 2006 A couple things I see, toomeys are going to be better on a stock port motor, your main jetting is probably a couple sizes too rich, if the other bike is jetted perfect that will be a prety big advantage, and in the sand on a stock motor the 13 tooth front will give an advantage in acceleration going from a dig. I'm assuming you both ran the same paddles. Quote Link to comment Share on other sites More sharing options...
Toomey Banshee Posted December 3, 2006 Report Share Posted December 3, 2006 330's do seem big. For a point of reference, on my 99 I have T-5's, stock port and with pods I'm running 340's. Toomeys will out perform CPI's on a stock port bike. At least thats what I have seen. How much are you losing by and how long is the drag? As far as gearing, it makes a big difference. He may have his flywheel lightend to let it rev a bit quicker. Just get yours ported and buy some carbs (33's or 35's) and the next time you race him dont tell him what you did and spank his candy ass. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.