NefMoto

Technical => Tuning => Topic started by: littco on March 29, 2013, 02:38:27 PM



Title: Rev limiter
Post by: littco on March 29, 2013, 02:38:27 PM
Is there a way of getting a hard cut rev limiter? Rather than running up to the limiter at 300rpm before and feeling it back off is it possible to get it run up and then cut at the limit dead. I assume it may need some routine change on the rpm limiter to cut ignition but before I go down that route just wondered if any one had a pearls of wisdom I've over looked.


Title: Re: Rev limiter
Post by: Axis on March 29, 2013, 02:46:10 PM
Read FR or the following thread and you will find what you need.
nefariousmotorsports.com/forum/index.php?topic=151.0


Title: Re: Rev limiter
Post by: littco on March 29, 2013, 03:40:12 PM
Is there a way of getting a hard cut rev limiter? Rather than running up to the limiter at 300rpm before and feeling it back off is it possible to get it run up and then cut at the limit dead. I assume it may need some routine change on the rpm limiter to cut ignition but before I go down that route just wondered if any one had a pearls of wisdom I've over looked.

Mmm
No help...



Title: Re: Rev limiter
Post by: Rick on March 29, 2013, 03:41:24 PM
You can use fuel cut to give you a harder limiter.  If you want to bounce of it, you need custom code.

Rick


Title: Re: Rev limiter
Post by: littco on March 29, 2013, 03:46:43 PM
You can use fuel cut to give you a harder limiter.  If you want to bounce of it, you need custom code.

Rick

Thanks Rick.. That was the answer I was looking for.


Title: Re: Rev limiter
Post by: matchew on March 29, 2013, 03:48:09 PM
Even though it is wrong?


Title: Re: Rev limiter
Post by: littco on March 29, 2013, 03:58:47 PM
Even though it is wrong?


Please tell me more.

I'm always open to suggestions and seemingly as Rick does know what he's talking about most of the time I'd have to listen to him over a " read FR comment"!

I was hoping someone might have a simple answer for me rather than the cryptic " you must learn young Jedi" none sense that turns up every now and then...


Title: Re: Rev limiter
Post by: Axis on March 29, 2013, 04:03:39 PM
But why would you want a limiter that are more prune to destroy engine mounts and other stuff? Why is it not enough to decrease the mentioned 300rpm?


Title: Re: Rev limiter
Post by: littco on March 29, 2013, 04:18:29 PM
But why would you want a limiter that are more prune to destroy engine mounts and other stuff? Why is it not enough to decrease the mentioned 300rpm?


Because I want to know if its possible , for no other reason. The 300rpm just seems soft...


Title: Re: Rev limiter
Post by: Rick on March 29, 2013, 04:22:11 PM
Even though it is wrong?


What's wrong?


Title: Re: Rev limiter
Post by: Snow Trooper on March 29, 2013, 10:05:25 PM
Play with DNMAXH, I run my car at 50 compared to the stock 200.


Title: Re: Rev limiter
Post by: littco on March 30, 2013, 07:35:46 AM
Play with DNMAXH, I run my car at 50 compared to the stock 200.

Thank you.. I will give it ago...



Title: Re: Rev limiter
Post by: krazydbiker on March 31, 2013, 07:33:19 AM
i have tried the dnmaxh a few times for mine, only for the first second or two its a hard limiter, then it seems to go soft :(, so it seems in my case custom code is needed, or atleast modification of the original code

edit : i did not read post fully, to early :-\... snow troopers method worked for me up high, but i turned it back after almost hitting the windshield a few times, its definitely a HARD limit


Title: Re: Rev limiter
Post by: Axis on March 31, 2013, 07:42:20 AM
Are you guys sure you are not talking about gear dependent torque limiter at high rpm?