• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Another Auto Tune question.

So Cal SM450R rider

So Cal SM450R rider

Husqvarna
A Class
For all you guys that have the AT, is 13.2 AFR the best setting for power? I already have motor work done and I am racing this bike more than I ride it on the street, so I'm not really concerned about fuel milage. Also, I'm running straight VP 4.2 or 4.4 and its oxygenated so should I change the AFR because of that? :excuseme:
 
I know nothing about race fuels, sorry. But I do like to experiment.

I did find this on the powercommander website:
If fuel mileage is a concern then you can alter the Target AFR values in the cruise range. Dynojet considers the cruise range to be around 5-20% throttle. Dynojet does not recommend making the bike any leaner than 14.7 in the Target AFR cells.
• Dynojet has found that for the best compromise of fuel mileage and throttle response to set the cruise range to 13.7-14.0.
• For all other ranges 12.8-13.4 seems to work best. For the best results it is recommended to bring the bike to an Authorized Tuning Center to have them verify the AFR values.
Click to expand...

I would start with 13.2 and experiment, that sounds like a nice afr to me for max power. The bike will let you know if it is unhappy.
 
I know that on carb'd MX bikes people usually go a bit richer when using highly oxygenated fuels. I'd think the same would apply in your situation. I don't know how AFR is measured with your setup though - I'd guess than an O2 sensor would get it wrong (I'm not sure it can detect oxygenates in fuel).
 
here is some info on race fuels/oxegenated. its about street bikes but its still good info for us that are dirt guys... and the few that do both :)
if you are thinking of running these fuels or already are this may help in your decision. good luck to all!

http://www.rc51.org/fuel.htm
 
Run your question by Eddie Sisneros over in the Jetting forum @ Thumper Talk. He's pretty smart on the PV and has set up several bikes w/ it too run the Pikes Peak hill climb.
 
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