• 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 The previous version was outdated and no longer supported.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!

Carb porn

Motosportz

Motosportz

CH Sponsor
Staff member
Just like looking at cool engineering. Found this last night while researching something else and thought others might like a peek. The angle looks about right for my 511 :D

3137896974_2_4_Gc5yGQhj.jpg
 
A bank of well tuned Keihin 40mm FCR housed on CF airbox on a ZX7 superbike...Homer Simpson drool.
 
Motosportz said:
or :D (I am beating the crap out of this dead horse :>)

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Great for drag racing not so much for road course. This is why I'm so surprised these carbs are working for you guys on off road bikes. Worked with lectrons years ago and always found them very off-on. Big air flow, big fuel and not much metering. I guess things have changed.
 
hammer said:
Great for drag racing not so much for road course. This is why I'm so surprised these carbs are working for you guys on off road bikes. Worked with lectrons years ago and always found them very off-on. Big air flow, big fuel and not much metering. I guess things have changed.
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yep, big changes.

Paul Gast use to run Lectron and was a big HP drag racer type. Little development went into overall running. Kevin took over about 7 years ago bought a bunch of test equipment and started making changes. One big thing was much more attention to low and and overall running. This was accomplished by countless dyno hours and a 3D rod profile. The old metering rods were basically straight cut, the new ones have many profiles depending on needs and cut to meter better at all throttle openings. I think this is why you see a resurgence in these carbs for our use. Kevin told me Paul basically was working on WFO power and did not do near the work he has on overall performance. These are now the opposite of off/on and one glaring attribute is how linear they are. I love this about these carbs as metering power between tree while going fast is important. I ride just off idle and into the mid range about 85% of the time. If this was a WFO carb i would hate it. As the metering rod does almost everything but the very top end they need to be the right profile to do what needs to be done. Kevin and crew have taken it to the next level. They have a dyno and wet test bench and have been using the crap out of them for a few years and developed this latest generation and VERY good metering rods. They have made many other changes as well. These things work GREAT.

I was discussing this with some of my fast guys Seattle crew and one guy is a factory sponsored SMR racer and very fast off road guy. He chimed in saying he thought the same as what you just posted but then spoke to a buddy of his that was running them on a race track on a 4 stroke (not drag racing) and he was raving about the performance too.

Things have for sure changed and it is good for us.
 
ohmygewd said:
To me this was the Lectron on the drag racing world
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The predator carbs were originally Kendig carbs. I went to school with Wille Kendigs nephew and we spent quite a bit of time hanging out out his shop (pollution control industries). Willie was a pretty well known drag racer and the carbs that he developed worked pretty well for that application but they weren't very streetable and were really finicky to tune.
 
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