I have a race coming up on Aug. 6th. I want to switch over to Alchohol for this race. Ive never run anything other than 110 pump gas, so I need some fuel air ratios I should be shooting for. I found a somewhat local dnyo ( 2 1/2hr drive) that is set up for ATV's. But they do not have any expierience with Alky. So, in order to get this right, I will need to do some research on what to look for.
So, this is what I need:


Is there a special plug that should be used with alky since it runs colder?

What fuel air ratios should be reached for the best performance?

Im just going to test this out to see first hand what kind of perfomance gains can be reached. Now that it is dialed in on 110 octane gas, I can also get some settings for the alky.

Thanks in advance for your replies, I will be happy to post any results of the test in here for all.

Gary

 

what mods do you have???

 

I am running the same motor as Mr. Hp. I still have the stock bore/ stroke as well.

14:1 piston
hpr cams,
Lectron48 with hpr intake
big valves,
hpr porting

Thanks,

Gary

 

DStroyer are you going to put the Lectron48 on alcohol?

 

Country,

Im going to try. It may not flow enough, so thats the reason I need to get some fuel air ratios to shoot for. Personally, I think it will do just fine, but the dyno is only way to get it setup properly right out of the box.

Gary

 

I didn't think it would flow enough but have not tried myself. Good luck!

 

I would also very seriously doubt that the metering rod will allow enough fuel. Seems like I heard that alky ratio should be between 4.3:1 and 6.5:1. Not 100% sure though.

 

Ive searched the net, and I cant find anything about the ratios. I appreciate the responses, but can anyone add anything to this. There must be someone running alky on here that has dynoed at least once. Or if you have a website link to some info, that would be great.

Thanks,

Gary

 

Never mind, I have all the info I need now.

Thanks again for the replies, and thanks to Randall at Richards Rec,


Gary

 

hey dstroyer, was the port and polishing and the big valves worth it?