rotax fuel

jeremy shaw · Joined: 12 Sep 2012 Posts: 22

Hey guys thanks a lot for the responses......first track meeting sat I just don't wanna do something stupid hahaha

Andre Eriksen · Posted: Wed Sep 26, 2012 9:20 am Post subject:

I have run +200 hours on different Rotax engines with 91 octane pumps gas from different gas stations. Never had a single issue. The engines are built for it anyway... I consequently went two jet sizes up compared to using VP, other than that no difference in performance (lap times).
_________________
2012 Formula Car Challenge Vice Champion (Pro Formula Mazda)
2011 Rotax DD2 Masters National Points Champion
2011 NorCal DD2 Masters Vice Champion
2010 NorCal Rotax Masters Champion
www.viking-racing.com
http://www.facebook.com/VikingRacing

Joe Ricard · Posted: Wed Sep 26, 2012 9:24 am Post subject:

Andre do you find pump gas a bit difficult to jet with the ethanol content is all over the place?
_________________
Arrow AX-8/ Rotax Sr.

Andre Eriksen · Posted: Wed Sep 26, 2012 9:30 am Post subject:

Not really, as said I ran 2 sizes bigger than on VP (which I would do in every race because it was mandated). Would I get 100% peak performance out of the engine each time - probably not, but I always run my engines a bit richer when testing anyway to make them last longer...
_________________
2012 Formula Car Challenge Vice Champion (Pro Formula Mazda)
2011 Rotax DD2 Masters National Points Champion
2011 NorCal DD2 Masters Vice Champion
2010 NorCal Rotax Masters Champion
www.viking-racing.com
http://www.facebook.com/VikingRacing

Brian Degulis · Posted: Fri Sep 28, 2012 4:09 am Post subject:

Ethanol screws up anything that's not built for it or used on a daily basis. Since it came to FL outboards, mowers, bikes anything that might sit for a while will need regular carb rebuilds if run on ethanol. In FL you can get non ethanol at pump prices you just have it hunt it down.

Brian

Joe Ricard · Posted: Fri Sep 28, 2012 7:02 am Post subject:

http://pure-gas.org/
_________________
Arrow AX-8/ Rotax Sr.

Joe Ricard · Posted: Fri Sep 28, 2012 7:03 am Post subject:

Dang double post.
Anyway that site seems to be pretty good for finding fuel.
_________________
Arrow AX-8/ Rotax Sr.

Justin Martin · Joined: 27 Mar 2012 Posts: 328

Hey all, quick question.

As you all know I posted I was using MS93 almost all the time except for a few times I ran 100 octane from a local shell. The 100 octane was the only gas with no ethanol. I am willing to run 91 because of your guys' suggestions, however can't find ANY without ethanol. What are the drawbacks and side effects of running 10% ethanol

Joe Ricard · Posted: Tue Oct 02, 2012 12:35 pm Post subject:

Jet up
and expect your results to be all over the place because ethanol content in pump gas can be all over the place with regards to percentage.

I never leave fuel in my kart anyway so no worries about corrosion.

Could be more expensive in the long run as what is not used will certainly be bad before you get to the track again.

Your weed eater will be happy running on kart gas.
_________________
Arrow AX-8/ Rotax Sr.

Justin Martin · Joined: 27 Mar 2012 Posts: 328

Sounds good. But what would you suggest I run then?

Joe Ricard · Posted: Tue Oct 02, 2012 4:38 pm Post subject:

I do feel fortunate to have all types of fuel at my favorite track. Nola Motorsports park. They just got 93 pump real gas, along with MS98 and 110.

No race shops near you?
_________________
Arrow AX-8/ Rotax Sr.

andy graham · Posted: Tue Oct 02, 2012 4:42 pm Post subject: non ethanol pump gas

goto your local marina or boat dealer and ask them where to get non ethanol gas...they should know and might have it

Justin Martin · Joined: 27 Mar 2012 Posts: 328

Herr in AZ the closest marina or bost dock is 2 hours away haha

Justin Martin · Joined: 27 Mar 2012 Posts: 328

Herr in AZ the closest marina or bost dock is 2 hours away haha

andy graham · Posted: Wed Oct 03, 2012 2:33 am Post subject: gas

no boat dealers or small engine repair shops in your area? they should both know if/where to get non-ethanol gas.