Raise rpm/increase torque

Hey yall! I recently bought 2014 cbr500r. I want to know if command tune raise rpm from 8,500 to 10,000? And more mid power. Bike have aftermarket slip on pipe.

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There's no reason to spin the engine that high. Aside from its reciprocating and valvetrain parts not being designed for those speeds -- Honda gave it the redline they did for a reason -- power is dropping pretty fast after its 8200RPM peak. By 10K you'd be down ~10HP from the peak.

For real midrange torque increases you're going to need to increase airflow (so cam, ports and runners etc changes), something a tune cannot do.

Also what the best tires for curve on street.

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I ran Pirelli Diablo Supercorsa V2s on my Tuono but found they needed more heat than could be generated during reasonable street riding. I switched to Bridgestone Battleax S22s and love them.

I second your Bridgestone Battleax recommendation. I am on my second set of them & they seem to be a great, long lasting good performing tire at a reasonable price.

Really appreciate it for response back to me. Sound like cam, poet etc is to go in future. May have to look into.if you have something recommended a shop in manitoba. Let me know.

Definitely will order Bridgestone Battleax as you mentioned it.

I almost bought ninja 400. But definitely too light for highway use. Heavy bike usually better on highway and more comfortable since will do lot of highway to get where curve road is.

Deaf Scotty said:

Really appreciate it for response back to me. Sound like cam, poet etc is to go in future. May have to look into.if you have something recommended a shop in manitoba. Let me know.

Definitely will order Bridgestone Battleax as you mentioned it.

I almost bought ninja 400. But definitely too light for highway use. Heavy bike usually better on highway and more comfortable since will do lot of highway to get where curve road is.

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Keep us updated after you install the cams. I'm also planning a cam install for next year.

Okay, this little embarrassing. I could not find cam kit online. Could you send me a link?? Appreciate it!!

Deaf Scotty said:

Okay, this little embarrassing. I could not find cam kit online. Could you send me a link?? Appreciate it!!

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You could write to Cameron Jones Racing:


AFAIK they sold racing cams for CBR500R in past, maybe they can make them on demand.

Regards,

Deaf Scotty said:

Okay, this little embarrassing. I could not find cam kit online. Could you send me a link?? Appreciate it!!

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It's not a common bike to modify, so these sorts of things can be hard to source off the shelf. Me and a couple other forum members went the custom route and found professionals in our local areas to modify the factory cams. There was an engineering company about an hour out of my town that did the first set for me for a few hundred dollars.

tothezenith is right, I plan to have Dan Crower make some custom cams. Dan Crower still has a race profile that they can custom build (the one CJR used to sell) but it is very focused on high RPM HP and loses torque which makes it a bad choice for a street bike.

Hey yall, sorry about not responding or updating. I was busy with Xmas, new years etc.

I kinda gave up. I tried email them CJR and no response. My best shot is intake K&N as everyone recommended. checked local shop, no luck.

My best shot is cbr650r least 2019. So I'm going enjoy this 500 till I able afford cbr650r.

Apparently ninja 400 going have 4 line this year!

Also I bought bridgestone battlax s22. And I hear nothing but good tires!