boosting your cc's - Harley Davidson Street Forum - Street 500 and 750
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post #1 of 12 Old 09-30-2016, 05:22 AM Thread Starter
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boosting your cc's

Hi again y'all..Has anyone heard of the bolt on kit from denniskirk for 550cc?better still,has anyone purchased it?

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post #2 of 12 Old 09-30-2016, 09:10 AM
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I don't think that would be worth it. For that money, I think you can get most of the 750 parts needed to move up the next size. After all, the 750 is just a larger bore. Stroke is the same. The 500 is probably just a sleeved down 750.
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post #3 of 12 Old 09-30-2016, 09:23 AM Thread Starter
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Wink

Thanks nollid51,I thought the same thing after some research but my searching to confirm this has not left me any more informed.i guess it wouldn't be common because most people would just purchase the 750 to begin with.im just trying to work out best thing to boost performance.

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post #4 of 12 Old 09-30-2016, 09:50 AM
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It's definitely an interesting project, the problem is there is not much information out there on these bikes. I haven't seen much modification on these bikes besides slip-ons. I'd really like to see a tear down of a 500 and 750 engine, but I doubt someone will post something like that for a while.

I saw on their website there is also a 750 to 800cc kit. If it were me, I'd look into the necessary 750 parts then pair it with the 800cc kit. Maybe a wrecked 750 on ebay/craigslist with a good motor would be a cheap option? You can work on the engine out of the bike then slap in the upgraded one when you are ready. Certainly would be a cool project.

Too bad forced induction isn't really popular on bikes, besides the very big twins.
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post #5 of 12 Old 09-30-2016, 10:55 AM Thread Starter
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Thanks for your thoughts,its a good idea with regards to the wreck.I'm definitely going to keep looking into it.i guess because its a reasonably new model there hasn't been all avenues explored yet.
would be a fun project that's for sure.😊

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post #6 of 12 Old 09-30-2016, 08:01 PM
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I see 750 motors on eBay all the time, VERY low mileage. Kind of spendy, they seem to fetch about $2500. But that'd be everything you need, just swap the whole motor, reflash your ECM with an FP3 to the 750 tune, and off you go.

2016 Street 5̶0̶0̶ 750
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post #7 of 12 Old 11-09-2016, 08:31 PM
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forced induction you say?
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post #8 of 12 Old 11-09-2016, 10:06 PM Thread Starter
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forced induction you say?
?????????????????????????????????????????????????? ??????????

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post #9 of 12 Old 11-09-2016, 11:19 PM
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post #10 of 12 Old 11-09-2016, 11:46 PM Thread Starter
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forced induction you say?
Cool man,that is an awesome idea,you say you cant say any more but would I be right to assume this could work with both 750 and 500?that is if your successful 😉

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