korider.com | Hyosung Motorcycle Owners Forum

korider.com | Hyosung Motorcycle Owners Forum

  • July 19, 2018, 02:44:43 PM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Advanced search

News:

Welcome to Korider.com!

Pages: [1]

Author Topic: Ecu Cut  (Read 526 times)

jasondotcom

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 11
Ecu Cut
« on: January 24, 2018, 11:11:51 PM »

Hey guys.

So just the other day I was chatting with some dudes and the topic of "ecu cut" came in. I was informed that this bike can be tuned in a way whereby the rev limiter is removed and the new limiter comes in at 13,000 rpm.

Then I counter checked this with my chief mech at the bike's dealership and HE said that same thing too.

I questioned things like why factory rpm limiters come in below 11k rpm and why after being removed the limiter comes in at 13k rpm? He said by design it's rev limit is 13k rpm. The lower rpm set was due to emissions standard in some regions. On top of this, after "ecu cut" is made the bike will ride better due to better throttle response and faster pickup and better fuel efficiency and of course more usable power till 13k rpm.

Really? Anyone????
« Last Edit: January 24, 2018, 11:14:10 PM by jasondotcom »
Logged

Register and log in and the Ads below will be gone! :D


Joss

  • Scraping the pegs
  • *****
  • Offline Offline
  • Posts: 877
    • Website
Re: Ecu Cut
« Reply #1 on: January 25, 2018, 03:40:01 PM »

You mean the thread stickied at the top of this forum titled : Removing the flat spot - CDI Wire cut walkthrough with photos?
Logged

jasondotcom

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 11
Re: Ecu Cut
« Reply #2 on: January 26, 2018, 04:54:34 AM »

I thought that applies to carburetor versions only?
Logged

Joss

  • Scraping the pegs
  • *****
  • Offline Offline
  • Posts: 877
    • Website
Re: Ecu Cut
« Reply #3 on: January 26, 2018, 09:24:22 AM »

Thats correct but you did not tell me you had an EFI bike.

This will not work on EFI and I think you would have to program an new ECU (did someone say OLEG was able to reprogram them?). Or build your own map for an aftermarket one.
« Last Edit: January 26, 2018, 03:25:48 PM by Joss »
Logged

jasondotcom

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 11
Re: Ecu Cut
« Reply #4 on: January 26, 2018, 02:28:25 PM »

Ok my mistake. Yes it's for EFI.

Btw, regards to my top post. Any comments?
Logged

jasondotcom

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 11
Re: Ecu Cut
« Reply #5 on: January 29, 2018, 02:01:33 AM »

Nobody?
Logged

umop-ǝpisdn

  • Global Moderator
  • Forum Addict
  • *****
  • Offline Offline
  • Posts: 7151
Re: Ecu Cut
« Reply #6 on: January 29, 2018, 02:31:00 AM »

Jason,

Doesn't sound right.

Might have applied once upon a time to the carby versions, but doesn't sound correct for an EFI model.

If you really want this to happen, you are going to need to reprogram the ECU. This is not a simple task.
Logged
I used to be a sensitive, new age guy, but times have changed and now I am more of a caring, understanding, ninties type.

stigger

  • Global Moderator
  • Forum Addict
  • *****
  • Offline Offline
  • Posts: 4216
Re: Ecu Cut
« Reply #7 on: January 29, 2018, 04:02:34 AM »

Sounds like someone was yanking your chain.
Logged

jasondotcom

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 11
Re: Ecu Cut
« Reply #8 on: February 05, 2018, 04:03:39 AM »

Whether someone is yanking my chain or not but honestly i have seen it done not the tuning or mod process but more like its done as in done. The factory rev limit is moved to 13,000 rpms. I saw it with my own eyes i was like 'wow'....really?

Benefits gained from this is mainly lighter and faster throttle and speeds, better fuel consumption and higher top speed due to higher rpm limits.

Logged

stigger

  • Global Moderator
  • Forum Addict
  • *****
  • Offline Offline
  • Posts: 4216
Re: Ecu Cut
« Reply #9 on: February 05, 2018, 04:11:19 AM »

If you get a higher rev limit form cutting a cable then you've probably disabled the rev limiter.

I'm not sure how any of the benefits listed would be gained from deleting the rev limiter.

 If I remember rightly the 250 won't rev to 11,000 in top anyway, removing the limiter is unlikely to help.

might be worth reading this ---> http://korider.com/index.php?topic=10368.0
« Last Edit: February 05, 2018, 04:13:04 AM by stigger »
Logged

Pages: [1]