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 The previous version was outdated and no longer supported.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!
I want to give a shout out to Walt and his 165 kit,,Jeff and I were the subject of a cylinder wall failure,,,when walt got the cyl/piston back,he knew rite away,,the engine had 2 1/2 hrs time on it.. Walt is standing behind his work and getting jeff and I a (reconditioned) cylinder free of charge and a new piston... This is the kind of person (builder) you want to deal with.. He stands behind his work....
One of your Aussie mates was trying to clue me in on how to get these kits to work well with your very different fuel and I thought I could work around it by just maximizing the bowl. Guess what he was right and apparently that isn't enough and the base gasket additions are the only way to get them to run well on your fuel. The bowl size is limited by the amount of material that's there to work with safely. I still think the best bet for you guys is to find a source of AV gas 100LL and mix it 50:50 with your pump stuff. That is a pretty universal fuel that is has to be consistant and stable.
I think you are going to need to have the squish at ~1.3 - 1.5 mm. That certainly isn't the most efficient squish gap but with the limitations of the bowl size is probably where you will need to go. I will see if I can get some more info for you today.
If you guy's can get octane booster try a small amount of that,,2 cap full's no more than that..
Mine appears to be 1.2mm through plug but need to pull off head to check correctly
The comment about using Toluene is the correct way to go if you are going to add anything to increase octane. I believe Toluene has an octane rating of ~110 so if you are starting at 94 and want to get to 100 you would need your fuel to be 40% Toluene. Octane boosters can only increase octane level in a similar ratio. When octane boosters claim to raise octane say 4 points when used as directed, a point is 1/10th of an octane. The trouble with many octane boosters is when mixed at high levels the other ingredients can be hard on things like fuel lines, O-rings, etc depending on the composition of the item. Toluene is the best way to go if you choose that route. Trouble is that Toluene is pretty expensive in its own right.
