What is max RPM for NC29 race engine?

PARUS · Post by **PARUS** » Tue Dec 27, 2011 10:40 pm

What is max RPM for NC29 race engine? I need it to know for fuel injection map tuning - I have RLRMotor engine with Kent cams. I suggest I can reach 16000 RMP, but like to check first.

cajun · Post by **cajun** » Wed Dec 28, 2011 6:57 am

I programmed mine to 13,500. It makes it's power up to 12,500 and gives you a little bit of over rev. On a race engine especially that's where you want to limit it to. Cam's are typically used to boost mid-range or in the case of the Kent Cams perhaps even top end.

But as long as you are not running Carrillo Rods, with lightweight pistons, I wouldn't recommend it. And even if you have the engine built by Honda themselves I still wouldn't recommend it.

yeurman · Post by **yeurman** » Wed Dec 28, 2011 10:56 am

All depends on state of tune, how much skimming had been done, valve overlap, how fresh are your valve springs, etc... 16000 to me seem very high, I never got any power above 14000 and only a few times did I set the rpm limiter to 15000, based on gearing at certain tracks. It all depends on where you get max power, if your still getting power at 16000, I would love to know what you have done... :)
Cheers
Col

Post by **CMSMJ1** » Wed Dec 28, 2011 12:13 pm

I'd be scared to run 16k revs. It would make a terrible mess of a nice engine if something went wrong!

I reduced the limit on my race bike to try and give it an easier life.(nc30) It still made power enough...and still broke when it went 3>2 instead of 3>4...

PARUS · Post by **PARUS** » Thu Dec 29, 2011 12:40 pm

Thank you for responses. I will consider max RPM is 15000.

yeurman · Post by **yeurman** » Thu Dec 29, 2011 8:42 pm

Hi Parus, you should set max RPM is where you get most bhp..... on a tuned NC29 motor this is normally below 14000, no point running over this if power then drops off..
Cheers
Colin

Post by **tanuki** » Fri Dec 30, 2011 9:22 am

I guess he means that he will set it at 16000 or whatever, dyno it then adjust it to peak power.

PARUS · Post by **PARUS** » Fri Dec 30, 2011 1:06 pm

tanuki wrote:I guess he means that he will set it at 16000 or whatever, dyno it then adjust it to peak power.

Yes, I need to setup 3D map dimension (Load x RPM). I just like to know what max I can have with NC29 engine and after that start tuning all stuff on dyno.

Will appreciate - if someone say what is timing advance for HRC ECU. I have read it should be +8 to stock 32 ( Full advance 32-deg. BTDC [+/-2-deg. @ 12,000rpm] ), but it's just from my memory and maybe I'm wrong.

What is max RPM for NC29 race engine?

What is max RPM for NC29 race engine?

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Re: What is max RPM for NC29 race engine?

Re: What is max RPM for NC29 race engine?

Re: What is max RPM for NC29 race engine?

Re: What is max RPM for NC29 race engine?

Re: What is max RPM for NC29 race engine?

Re: What is max RPM for NC29 race engine?