Fuel supplements in central Alberta

[Duct tape Doo]

Have 13.5:1 Terra Alpine head going on an 08 XP, Looking for a bit of fuel insurance, VP ? airplane fuel ?
Best choice of ratios for Mountains vs Prairie?

 

[neilsleder]

I got 13.5:1 Rk head and I use Sonoco fuel 112 octane. And mix it 20% with 91 octane pump gas. I get it through Mountain Magic in Edmonton. Hope that helps you

 

[summ-it-up]

i have a 13.5:1 straightline performace head and i run a 20% mix with av gas, i think the end octane is about 93, but, and correct me if i'm wrong somebody, you shouldn't have to mix over 6000 feet? read that somewhere... i just got my av gas at villenueve airport, 1.55 a liter

one of the threads posted a while back had a octane calculator on it, Octane Calculator - www.bazellracefuels.com

 

[DaveB]

Drive out to Skywings at the Springbrook airport. (bring proper fuel cans) Get a few jugs of LL100 Av gas....it was $1.50 something a litre last week. Mix 'er up 20-30% with 91 premium and yer good to go.

Edit: as Summitup said....above 5000/6000 feet or so you can run straight 91 octane....the problem is GETTING to 5000/6000 feet. So I always run the same blend.

 

[rsaint]

Interesting i have a slp 13.5-1 head on my 07 xrs and run premium fuel only and 3 seasons running with no failure other than the crank issue and this was before the head. This sled gets run into the snow too. Am i missing something??

 

[DaveB]

If you can be CERTAIN your fuel is good....and ride 3000 feet and up.....and the squish isn't real tight (SLP is not)....you can get away with 13.5 and premium fuel.