What kind of fuel can i run

[Wheelie Ripper]

Hi, I was wondering if i should continue running straight avgas or if i should mix 50/50 with 93 pump gas. My mods are as follows. Bored .040 over, cool head with 170 psi compression on both cylinders, +5 timing, paul turner mid range pipes. My elevation is 450 feet above sea level. Also does my jetting sound alright, im running 300 mains, 30 pilots? Thanks for your help

[slopoke]

Hi, I was wondering if i should continue running straight avgas or if i should mix 50/50 with 93 pump gas. My mods are as follows. Bored .040 over, cool head with 170 psi compression on both cylinders, +5 timing, paul turner mid range pipes. My elevation is 450 feet above sea level. Also does my jetting sound alright, im running 300 mains, 30 pilots? Thanks for your help

 

I run straight av gas with about 185psi. Works great, burns clean and isnt that high. Some people will say don't run it but to his, his own.

[dirtydownunder]

i run straight avgas aswell, with 160odd psi of comp and +4 timing @sea level.

its been running great and the stuff im using is OLD as. 5 gallons left out of 44 haha.

[Snopczynski]

You should be able to run 50/50 high octane pump, and 110 race gas.

[Wheelie Ripper]

Thanks for the replies, i know i am safe running the avgas, but wasn't sure if i could squeeze some more power out of it by going 50/50. Does anyone know what the max compression is for avgas??

[slopoke]

Av gas is way cheaper and is way better than a 50/50 mix.

[SAVAGE420]

Av gas is way cheaper and is way better than a 50/50 mix.

 

Ive been running in in sleds for 7-8 years or longer. Been running it straight with Amsoil Interceptor 40:1 for 2 years now in my banshee and its been great, also really cheep and easy to get here too.

Edited August 27, 2009 by savage420

[glassjawjm]

Your pilot sounds good, but the main might be a little lean, I'm at sea level and had to run 320 in stock Carbs, with the same mods, I run straight 100LL at 40:1. I would say that 320 were on the rich side but not by much, hardley ever fouled plugs. I would rather b rich then leAn, how does it run?? HoW do your plugs look?

[SAVAGE420]

Well you know what they say...Lean is mean and rich is a bitch

[glassjawjm]

Well you know what they say...Lean is mean and rich is a bitch

Fuck it!!! Throw some 220's in there, let's see how long it would take to blow it up. you don't really need gas, just alot of air, better yet just take your Carbs right off, throw them out. Let's us know how she runs then:) if it doesn't just load it In a truck and have some one drive you around as you sit on it and make engine noises.

[Havok248]

Do you guys just go to your local airport to get the AV gas or what?

[glassjawjm]

Do you guys just go to your local airport to get the AV gas or what?

yeah

[bode1]

yeah

 

 

Yep

[AKheathen]

i buy 100ll @ the pump and mix it 50/50 with 90 oct. i'm running 20cc domes with stock porting/stroke, +5 timing, and it does make a little more power thn strait 100oct. what domes/stroke porting are you running? also, we can't give you jetting suggestions without knowing what pipes, what airbox setup, elevation, and temps.

[glassjawjm]

Hi, I was wondering if i should continue running straight avgas or if i should mix 50/50 with 93 pump gas. My mods are as follows. Bored .040 over, cool head with 170 psi compression on both cylinders, +5 timing, paul turner mid range pipes. My elevation is 450 feet above sea level. Also does my jetting sound alright, im running 300 mains, 30 pilots? Thanks for your help

I belive this was the first post..........