Fastassbanshee96 Posted March 30, 2010 Report Share Posted March 30, 2010 I have a 96 banshee bored .40 over with the stock crank. I just picked up a cool head with 19cc domes and was wondering if anyone knows what gas I will have to run. Can I do pump or will I have to run race fuel. Also it has fmf fattys with turbine core 2 and vforce reeds. Would anyone be able to tell me what size jets I should run with the new head. Quote Link to comment Share on other sites More sharing options...
papa_smurf49319 Posted March 30, 2010 Report Share Posted March 30, 2010 whats the compression, whats your elevation, how much spark advance are you running? Answer thoughs first! Cody Quote Link to comment Share on other sites More sharing options...
firebanshee Posted March 30, 2010 Report Share Posted March 30, 2010 I have a 96 banshee bored .40 over with the stock crank. I just picked up a cool head with 19cc domes and was wondering if anyone knows what gas I will have to run. Can I do pump or will I have to run race fuel. Also it has fmf fattys with turbine core 2 and vforce reeds. Would anyone be able to tell me what size jets I should run with the new head. If you are close to sea level then you would need race gas. Quote Link to comment Share on other sites More sharing options...
Fastassbanshee96 Posted March 30, 2010 Author Report Share Posted March 30, 2010 If you are close to sea level then you would need race gas. I'm not sure on the compression I haven't put the head on yet and I got the bike off a friend who had it built quite some time ago and doesn't remember what all is done to it. I believe the spark it stock and I live in Michigan near detroit so I don't really know what elevation that is. And as far as running race fuel do I have to run c12 or can I just run turbo blue. It's alot cheaper than c12. Like half the price. Thanks. Quote Link to comment Share on other sites More sharing options...
James-26 Posted March 30, 2010 Report Share Posted March 30, 2010 I'm not sure on the compression I haven't put the head on yet and I got the bike off a friend who had it built quite some time ago and doesn't remember what all is done to it. I believe the spark it stock and I live in Michigan near detroit so I don't really know what elevation that is. And as far as running race fuel do I have to run c12 or can I just run turbo blue. It's alot cheaper than c12. Like half the price. Thanks. Unless you want to run race fuel why dont you just buy a 20-22cc domes? I believe you can run 90-93 octane fuel with them. Quote Link to comment Share on other sites More sharing options...
bansheesandrider Posted March 30, 2010 Report Share Posted March 30, 2010 You need to figure what your compression is. Depending on what it is you might be able to mix pump and race gas together. I don't have 19cc domes but my bike runs fine on 2 gallons of 108 octane race gas mixed with 3 gallons of 93 octane pump gas. Quote Link to comment Share on other sites More sharing options...
tundish2800 Posted March 30, 2010 Report Share Posted March 30, 2010 i live around detriot. with 19cc dome you should be able to run pump gas or at least a 50/50 mix. I had 17cc domes with170 per side. 19 you will have less than that but do a test to make sure. where are you around detroit? What kind of carbs do you have? You can get race gas at some sunoco stations its around 7.00 a gallon. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted March 30, 2010 Report Share Posted March 30, 2010 keep in mind porting will also play a role in this.. Compresion ratio should be calculated. I just use sunoco 110... VP fuels are too pricey for me.. Quote Link to comment Share on other sites More sharing options...
Fastassbanshee96 Posted March 30, 2010 Author Report Share Posted March 30, 2010 keep in mind porting will also play a role in this.. Compresion ratio should be calculated. I just use sunoco 110... VP fuels are too pricey for me.. Right now I am running stock carbs. I live in Roseville. The motor is out of it right now so I can redo the frame a what not but I should have the motor back in by next week and I will do the compression test. Can you use any old compression tester or is it a certin one for these things. I started testing it before I pulled the motor and got it up about 110 pounds before my foot slipped off and and hit my leg on the rear fender braket and seperate my calph muscle from my acillys tendent. So I've been moving kinda slow lately. But someone told me that the tester you have to use can't have a long hose on it and mine has about a 4 foot hose. Will that make a difference? Also what is 110LL and where can I find it at. Quote Link to comment Share on other sites More sharing options...
firebanshee Posted March 31, 2010 Report Share Posted March 31, 2010 Right now I am running stock carbs. I live in Roseville. The motor is out of it right now so I can redo the frame a what not but I should have the motor back in by next week and I will do the compression test. Can you use any old compression tester or is it a certin one for these things. I started testing it before I pulled the motor and got it up about 110 pounds before my foot slipped off and and hit my leg on the rear fender braket and seperate my calph muscle from my acillys tendent. So I've been moving kinda slow lately. But someone told me that the tester you have to use can't have a long hose on it and mine has about a 4 foot hose. Will that make a difference? Also what is 110LL and where can I find it at. Your porting will affect your static compression, that is why it was said that you need to calculate it. If you have an aggressive port job then when you kick it over your motor will not show that much compression, but when your motor is running and is in the pipe your compression will go up. So kicking your bike over with a compression guage is not that accurate but it gives you a baseline. There are alot of threads reguarding what compression guages work best do a search on this. 100LL is AV GAS (airplane fuel) you can get it from some airports not all airports will sell it to the public. The LL means low lead. Quote Link to comment Share on other sites More sharing options...
Fastassbanshee96 Posted March 31, 2010 Author Report Share Posted March 31, 2010 Your porting will affect your static compression, that is why it was said that you need to calculate it. If you have an aggressive port job then when you kick it over your motor will not show that much compression, but when your motor is running and is in the pipe your compression will go up. So kicking your bike over with a compression guage is not that accurate but it gives you a baseline. There are alot of threads reguarding what compression guages work best do a search on this. 100LL is AV GAS (airplane fuel) you can get it from some airports not all airports will sell it to the public. The LL means low lead. I don't believe there is much port work done on it. I was looking the other day and noticed a little bit on the exhaust port is ground down. I don't know much about porting but it doesn't look very aggresive at all. Where all do I have to look for porting to figure this out? Is there any port work done on the intake usually. If I can load a pic would you be able to tell me if it is an aggresive port and if the port work looks any good. What all do I need to take pics of. Quote Link to comment Share on other sites More sharing options...
firebanshee Posted March 31, 2010 Report Share Posted March 31, 2010 I don't believe there is much port work done on it. I was looking the other day and noticed a little bit on the exhaust port is ground down. I don't know much about porting but it doesn't look very aggresive at all. Where all do I have to look for porting to figure this out? Is there any port work done on the intake usually. If I can load a pic would you be able to tell me if it is an aggresive port and if the port work looks any good. What all do I need to take pics of. You could take pics of the intake and the bottom so you can see how much they opened up the transfer ports on the bottom. You need to take measurements to see how much the transfers have been raised and the exhaust has been raised. Also try to get a pic of the exhaust port so you can see what shape it is. Quote Link to comment Share on other sites More sharing options...
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