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 The previous version was outdated and no longer supported.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

530 big bore kit available from Motosportz

BreakingPoint said:
@ wilmar13 : thanks, but I find it curious that in your case the AFR was affected by only increasing cylinder volume... One would think you needed to add more fuel because you could let more air in into the cylinder. But without other cams or valves that cant be the case?
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I think you have a misunderstanding about how engines work, or else I am misunderstanding what you are saying. Valve size and timing affect the opening, which can allow more air in, but increasing cylinder volume pulls more air through the same opening.

Said another way, if you increased your lung size, but not your mouth/throat you could still breath more air, right? The pump is bigger even if the hose isn't it will flow more unless you are right at the limit, which you are not with the stock head. I had to add more fuel because I was pumping more air, simple as that. Sure with head-work, it may be able to do even more yet, but that is true at 501cc (and 450cc) too.
BreakingPoint said:
How much does a standard 510 piston kit cost? I guess the big bore kit is worth the extra cost?
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I think the cost of the piston is roughly the same... the kit costs about 2x as much as just a piston but you are getting another cylinder too.
 
yeah, I was thinking a bit too theoretically about that valve opening time/size, and I guess it's worth the shot whenever I need a rebuild. Thanks!
 
Anymore updates on the kit on a 450? I am thinking of tossing it on my carbed 08 smr. What is the actual displacement on a 450? Does anyone has side by side numbers of the stock 450 and with a 530 kit on a 450. I'm on the fence about just putting kit on my 450, or making it an actual 530 by getting a crank, cylinder studs, cam chain.
Would be nice to have a dyno chart of all four bikes. 450, 478, 510, 530
 
Pinittowinit said:
Anymore updates on the kit on a 450? I am thinking of tossing it on my carbed 08 smr. What is the actual displacement on a 450? Does anyone has side by side numbers of the stock 450 and with a 530 kit on a 450. I'm on the fence about just putting kit on my 450, or making it an actual 530 by getting a crank, cylinder studs, cam chain.
Would be nice to have a dyno chart of all four bikes. 450, 478, 510, 530
Click to expand...
Discussed in some detail in this thread:
http://www.cafehusky.com/threads/530-big-bore-kit-installed.12593/

No idea if anyone has done it... JR raises an interesting point in post #80 of the above thread about only milling off 1/2 the difference. Someone just take the plunge! It can SURELY be done, and when you have the new 530 long stroke jug in hand you can compare dimensions to your 450cc and it will be easy to see how much needs milled and where so that everything works. :cheers:

I sold my Husky to a friend so that I could focus on my Aprilia SXV, and man do I ever miss the simplicity of the Husky thumper.:o
The SMR with the 530cc kit is only a taller-6th-gear away from being the absolute perfect Supermoto bike for all around riding, performance, and reliability.
 
Yup, The difference in stroke is 7.04mm. Since only half of that is upward movement, The cylinder needs to be milled just 3.52mm or 0.1385in. :thumbsup:
 
:rolleyes:...............................................530 aayy...................time to start hunting down a smr510 crank......
 
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