12425 - Established June, 2013 - all GRiSO, all the time...
 
HomeFAQRegisterLog in

Share | 
 

 Idle rise....

View previous topic View next topic Go down 
AuthorMessage
The Saint
Biondino
Biondino


Posts : 238
Join date : 2014-12-04

PostSubject: Idle rise....   Tue Mar 31, 2015 7:19 am

I've been playing around with the ecu tables for a while now. Past couple of days I was paying close attention to the ignition advance, concentrating on car park and U-turn smoothness. Peculiar thing is, no matter what changes were made to the idle timing, GD always read around 4deg while idling. Anyway, as I was getting ready for bed, I got an idea. I wondered if this discrepancy correlates to the idle rise when the clutch is pulled. Back to the garage, connect, start, pull...Lo and behold, immediately, the advance jumps to about 10deg, followed by the famous rise.

This is just a 'MAYBE' as I had quite a few drinks. Notwithstanding, it's worth exploring further, but not tonight. Mark, Roper?

Al
Back to top Go down
beetle
GRiSO
GRiSO


Posts : 3970
Join date : 2013-09-30

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 1:15 pm

Why? Alan, your overthinking things.
Back to top Go down
Oz1200Guzzi
Don Abbondio
Don Abbondio


Posts : 1780
Join date : 2014-03-13
Age : 62

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 2:19 pm

Al, you had too many drinks - surprising, I thought you were a sponge...
Back to top Go down
ghezzi
Fra Cristoforo
Fra Cristoforo


Posts : 1696
Join date : 2014-05-22
Age : 59

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 4:13 pm

Having too many drinks is no excuse, I'd be more worried if you were on the wagon.

For your next avatar, ride to Haigslea pub, they have a 30' monument to a bottle of rum. Park your bike behind it and then take a photo.
Back to top Go down
http://www.biketowbrisbane.com.au
DungeonMaster
GRiSO
GRiSO


Posts : 1163
Join date : 2013-11-26
Age : 53

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 5:06 pm

ghezzi wrote:
, I'd be more worried if you were on the wagon.

Then you better worry about me!! Smile
Back to top Go down
The Saint
Biondino
Biondino


Posts : 238
Join date : 2014-12-04

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 6:45 pm

I was neither curious nor concerned about idle rising, but I was about the idle ignition timing. Now I know that something is overriding the main table under certain circumstances. It'll be interesting to know why.

Why bother? Because more information and knowledge will aid diagnosis of potential dilemmas. Or satisfy people's curiosities.

Al
Back to top Go down
The Saint
Biondino
Biondino


Posts : 238
Join date : 2014-12-04

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 6:47 pm

ghezzi wrote:
Having too many drinks is no excuse, I'd be more worried if you were on the wagon.

For your next avatar, ride to Haigslea pub, they have a 30' monument to a bottle of rum. Park your bike behind it and then take a photo.

Great idea Wayne. But you'll have to take me there. Might wanna bring your ute, just in case.
Back to top Go down
ghezzi
Fra Cristoforo
Fra Cristoforo


Posts : 1696
Join date : 2014-05-22
Age : 59

PostSubject: Re: Idle rise....   Tue Mar 31, 2015 7:56 pm

DM I'm on the wagon too, but every time The Saint drops by he wants to go for a ride to the pub.
I ride silly enough when I'm sober, I don't need to add alcohol.
Back to top Go down
http://www.biketowbrisbane.com.au
The Saint
Biondino
Biondino


Posts : 238
Join date : 2014-12-04

PostSubject: Re: Idle rise....   Sun May 10, 2015 4:47 am

For those that may be interested. I can confirm that the idle rise is related to change in ignition timing when the clutch is engaged or disengaged. If your map is based on the G803 this will be the case it seems. 68S on the other hand is not affected.

It would be interesting to see if this is consistent. Next time you connect GD note which map you've got, wheather or not the timing changes when the clutch is pulled and released and effect on the idle. Please post the findings.

Cheers
Al
Back to top Go down
beetle
GRiSO
GRiSO


Posts : 3970
Join date : 2013-09-30

PostSubject: Re: Idle rise....   Sun May 10, 2015 5:14 am

Actually, the ignition timing changes when you pull the clutch in. It is hard coded into the 03 software. I'm sure I've told you this before. There are different fudge factors coded into the 03 map and 68S maps that make them behave differently. There's a reason why every map I have developed uses the 03 map as a base and uses the 68S ignition timing, or a derivative thereof.
Back to top Go down
Sponsored content




PostSubject: Re: Idle rise....   Today at 12:11 pm

Back to top Go down
 
Idle rise....
View previous topic View next topic Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
GRiSO ghetto :: The Ghetto :: GRiSOLOGY-
Jump to: