Welcome, Guest. Please Login or Register
MyECU main site
  Welcome to our forum.
  HomeHelpSearchLoginRegister  
 
Page Index Toggle Pages: 1
Send Topic Print
Guzzi 1100 Sport (Read 5973 times)
raz
Senior Member
****
Offline


Guzzi 11OO Sport, My16MkV,
Innovate LC-1

Posts: 373
Stockholm, Sweden
Gender: male
Guzzi 1100 Sport
01/23/11 at 09:51:51
 
This is my map, except the ignition table is Kiwi_Roy's because mine is a transposed version from a map I bought from Phil Arnold and while I don't think it's significantly better or worse than anything else, I don't think it would be proper to post his work. Anyway there are no big differences.

The injection table is made from 20,000 kms of closed loop riding, some in Autotune, some manually after studying logs. There are still some things to do (you can see some weird spots if graphing it in 3D) but it works just fine.

The InjAdv table aims at timing the injection pulse so it starts as early as possible, but without squirting during the "previous cycle" like the defaults do. As the numbers are given as End of Injection and not Start of Injection, this means it has to be calculated in a spreadsheet, with the injection map as input.

The Temperature tables have sane values for out-of-bounds readings (eg. at an indicated temp of -30°C we disregard the sensor and use a sane default)

The InjVOn table is something I came up with before Cliff published his defaults. I can't say mine are better or worse.

The RPM limiter is raised to 8500 rpm as my heads are in very good condition. Not that I use that a lot.

There are comments for the O2 values indicating what they mean (I just use the LC-1 default settings) in A/F, lambda and (roughly) CO.

My valves are set to 0.15/0.20 and I set the TB's and TPS by the book. That means my idle TPS is 77 (from 378 mV) - if I want to change idle I do it by tuning the idle cell in the map.
Back to top
 

raz_sporti.ecu (11 KB | 1119 )

59° North
1100 Sport iniezione elettronica -- the perfect merge of a superbike and a steam train
 
IP Logged
 
Mad Farquhar
Full Member
***
Offline


Slainthe mhath

Posts: 171
Black Isle, Scotland
Gender: male
Re: Guzzi 1100 Sport
Reply #1 - 01/24/11 at 19:56:21
 
Hi Raz
More things to think about!
1) My base TPS is ±100, both you and Cliff have mid 70s. Things that make you go mmmm...
2) InjAdv - need to have a think on this squishy bit. Could you elaborate on this calc you do?
3) My idle cell duration is indeed less than yours however there is very noticeable change in engine when I deviate either way so after I check the v/vs, recheck the tps and balance I'll play with this cell - probably go richer first to see how idle is affected..
4) On the subject of the 1100 sport throttle bodies where do you guys find the bypass is normally set to (1 turn out)?

hand

g
Back to top
 

MG Sport 1100 inj
Triking
Honda ST1100
V7 Stone
...
 
IP Logged
 
raz
Senior Member
****
Offline


Guzzi 11OO Sport, My16MkV,
Innovate LC-1

Posts: 373
Stockholm, Sweden
Gender: male
Re: Guzzi 1100 Sport
Reply #2 - 01/24/11 at 20:43:45
 
Hi Gav

The main point in having the base and idle (btw you wrote base but meant idle Wink) TPS by the book is to make maps interchangable. If you would produce a perfect map using 100 there would not be ANY other disadvantage than that anyone wanting to use your map must know it's produced for 100 (approx 500 mV).

The InjAdv formula is a bit complex. For each cell it needs the pulsewidth (including dead time, or about half of the latter, or...) and rpm as input. We need to know how many degrees the crank will rotate during the pulse. I have a crude spreadsheet that does all this in a couple of steps. Maybe I can produce a specific example some time. Note that I don't have much evidence it was even worth the effort  Roll Eyes  We discussed it in a thread somewhere (maybe most of it was in the v11lemans.com megathread). I did try the opposite (late injection) which is much easier to do: Just enter 150 or something in the whole map - but that was significantly worse than the default of 525 or 600.

When I enrichened the idle cell not much happened immediately - the difference lies in stability. Before I realized that, I always set it too lean because you don't notice the difference until it stalls at a redlight.

I think I started with bleeders a half turn or maybe one turn out. I do recall I wanted to close rather than open - so instead of opening one side I close the other. Two turns out tend to produce a terrible whistling noise on my bike.
Back to top
« Last Edit: 01/24/11 at 20:47:04 by raz »  

59° North
1100 Sport iniezione elettronica -- the perfect merge of a superbike and a steam train
 
IP Logged
 
raz
Senior Member
****
Offline


Guzzi 11OO Sport, My16MkV,
Innovate LC-1

Posts: 373
Stockholm, Sweden
Gender: male
Re: Guzzi 1100 Sport
Reply #3 - 01/24/11 at 21:39:32
 
raz wrote on 01/24/11 at 20:43:45:
Maybe I can produce a specific example some time.

Here is the spreadsheet I used. I see now I haven't updated the InjAdv for a while in the map I'm using (and that was posted above), though map has changed a little. But it's not a big deal. Note that InjAdv is given in 15 degree steps.

At the time I experimented with this I tried late injection, early injection, and centered around various events like the overlap, the "fastest speed of charge" and whatnot. My butt dyno (and some closed loop logging) voted early injection as the best though some other alternatives seemed pretty nice too.
Back to top
 

InjAdv_xls.zip (12 KB | 627 )

59° North
1100 Sport iniezione elettronica -- the perfect merge of a superbike and a steam train
 
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print