| Author | Message | ||
     Cyclonecharlie |
Any of you guys or gals useing any of the new blended racing fuels for track days or racing? Are you useing it straight or mixed with pump gas? Inquiring minds want to know...........Charlie | ||
| Diablobrian |
Be careful, some race gasses have lead in them and your o2 sensor will die in seconds. on an FI bike. Carb'd bikes should be okay running straight race fuel, although your jetting will not be spot-on. | ||
| Cyclonecharlie |
Brain, You can get it in leaded or unleaded. Was just curious who was and what percentage.........Charlie | ||
| Diablobrian |
Yes I'm aware, just throwing a cautionary note out there for those that may not know. Because so many bikes use broadband o2 sensors some vendors fail to mention it, and it's been so long since leaded gas was available at the pumps that some of our younger members may not be aware of WHY they shouldn't run the leaded fuel. It's all good. We are going to be changing over from VP over to the "Rocket Fuel" branded 112 octane race fuel that Hal's is selling. Of course our ECM will be tuned for this specific fuel. | ||
| Cyclonecharlie |
Brian, Was wondering when you were running the"VP" was it an "OXYGENATED" fuel and if so, were there any fuel related things to watch out for............Thanks ..Charlie | ||
| Diablobrian |
We were running U4 mostly, non-oxygenated. the new MR10 looks interesting and it is oxygenated. We have not run into any fuel related issues, but we always dyno tune with the fuel we will run on the track. We don't want to find problems at the track. | ||
| Cyclonecharlie |
Brian, Thanks for the info. U4 is a leaded fuel. This doesn't create a problem for your 02 sensor? Do you just change out sensors on short duration? Thanks again..Charlie | ||
| Diablobrian |
We are running a "real race ECM" the kind only available to licensed racers. It does not use an o2 sensor. U4 is widely used in the pits and if you buy some from someone else (not a vendor) it could cause an o2 sensor to die literally in seconds. I've seen it happen. That's why I made my first post to warn people. | ||
| Cyclonecharlie |
Thanks Brian, I was wondering how you got around it. Makes sense now. Just trying to learn a few things. All of my experience has been with vintage bikes(carb. type) Never too old to learn....Thanks again... Charlie | ||
| Vonsliek |
i am going for my canadian race license .. if i get it .. will that make me a *licensed racer* & therefore eligible to purchase *licensed racer* products, such as race only ecm, race fuel, etc..?? | ||
| Trojan |
We run Sunoco GT Plus race fuel in our XB12 racer. This is 109 Octane oxygenated (4.5%) race fuel and we find it superb. If you are running something like this then it won't make a huge difference to a stock motor. In fact if you don't have the facility to alter the ignition and mixture we wouldn't recomend it at all!! Our bike runs 12:1 compression so needs more octane than pump fuel can give us. We have also set the bike up to run richer than normal to account for the 4.5% oxygen content and the ram air that we use. It is unleaded and safe to use with the O2 sensor and EFi motors. | ||
| Cyclonecharlie |
Thanks Matt, Im not sure I understand the advantage of the "oxygenated fuel" over reg. racing fuel.Is there a clear advantage? Thanks .....Charlie | ||
| Trojan |
Oxygenated fuel has Ethanol in it, which is apparently an oxygen carrier. The idea of such fuels is that you can only force so much air (oxygen) in through the throttle body, and oxygenated fuel lets you sneak a bit more in with the fuel. It is used particularly in formulae where airbox restrictions are mandatory although has advantages in most classes of racing. There are various leaded and unleaded oxygenated fuels available, all with varying amounts of oxygen in from 1% right up to the 4.5% and above. You would need to check with your race organisation regarding the legallity of the fuel you want to use though, as some have very strict rules. The Sunoco fuel that we use is also quite unstable so needs some careful storage and handling  You can find more information at http://www.sunocoinc.com | ||
| Cyclonecharlie |
Thanks for the info Matt, that tells me what I was wanting to know,or atleast one of them. Im involved in Dirttrack racing, but have been out of it for over 20 years. Alot is still the same,but also alot has changed (fuels)etc. I can see what others are using, but most don't know why and some wont say. So thanks again.....Charlie |
