Race Fuel Needed?

[M7FREAK]

Hi, I have a Banshee that I just purchased. I am trying to figure out what fuel to run through it. The previous owner ran 50/50 92 110 through it. It has T-5's 28MM Keihin and a cool head and that's about all I know about it. I decided to do a compression test tonight and it was right at 180 at sea level. I am thinking it has 19cc domes and my gut is telling me to run straight 110. Cascade in Portland did the work but unfortunately they can't tell me anything about it. I don't know if it's ported or stock bore or advanced timing. Also, I'm heading to St Anthony is a few weeks and it's going to be hot so that's making me lean towards 110 as well.. You guys agree?

 

Thanks for any input.

 

Mark

[Burt Reynolds]

180 is high on a banshee,your going to need some hi octane fuel thats for sure.

[Nieskes]

What sea level are you at?

[beez33]

Run straight race gas until you open it up and see what you have. Better be safe then sorry. Gonna need to bring some jets when you go to st. Anthonys.

[shakar]

im at sealevel with 20cc domes. when the motor was fresh i only had 145psi.so im guessing you at 18 or smaller. pop the head off and check it out and order smaller domes if needed. piece a cake goodluck

[M7FREAK]

What sea level are you at?

 

 

I am on the Oregon Coast.

 

Thanks for the input guys. I am going to run straight 110 to be safe. At some point I will open it up, I am curious to see what's done to it.

 

Thanks!

[M7FREAK]

Run straight race gas until you open it up and see what you have. Better be safe then sorry. Gonna need to bring some jets when you go to st. Anthonys.

 

 

Thanks. it has 165's in it now I am taking 160's and 155's.... Hopefully one of those will work.

[Nightmare]

I would take a few more jets. Going from sea level to 5000ft is a big jump. Just my .02

[RadarRacing]

Just like they said. 180 psi will need race gas. Going to 5000 feet may need a few jet sizes down.