playing with ECU - Page 2 - SV650.org

Stu · 12-05-08, 03:16 PM

Quote:

Originally Posted by BigApe

Very nice pictures of mountains there Mark.

+1
Not a clue what they mean.
Can't you do 2D Dyno charts? or have I completely missed the point?

yorkie_chris · 12-05-08, 09:08 PM

It's not dyno chart, what it is is a 3d graph.

E.g you're at 5000rpm with 5/16 throttle opening, that's the two bottom axis, the height of the graph at that point is the value it will apply, like so many milliseconds squirt to the injectors, or x degrees of ignition advance.

Girth · 12-05-08, 09:12 PM

Thats all too technical for me!

rictus01 · 12-05-08, 09:38 PM

the graphs are just a easy way to see the programed numbers in the fuel and ignition maps.

The first two are originals that come on the bike, the second two are the modified maps.

Cheers Mark.

yorkie_chris · 12-05-08, 09:38 PM

What modifications have you made to the "breathing" on that engine?

rictus01 · 12-05-08, 10:02 PM

Quote:

Originally Posted by yorkie_chris

What modifications have you made to the "breathing" on that engine?

Modified airbox, larger throttle bodies ( smoothed internals and polished) thinned butterfly spindles (10% increase in flow area), performance big injectors, BMC Race filter,modified headers,wunoff underseat free flow exhaust.

Cheers Mark.

yorkie_chris · 12-05-08, 10:04 PM

So you've had to completely redo the map? As I presume standard pulse width would be far richer with bigger injectors.

p.s giz a go mister

rictus01 · 12-05-08, 10:12 PM

Yeah pretty much, but the way tuneboy works you can trim the map, try it then save the trims directly onto the map and add more trims, so it's done in stages, makes life simpler.

Cheers Mark.

13-05-08, 06:26 AM

Still look like mountains to me.

Stu · 13-05-08, 10:25 AM

Quote:

Originally Posted by BigApe

Still look like mountains to me.

And if that's the case, the first two look much better

12-05-08, 09:08 PM	#12
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: playing with ECU It's not dyno chart, what it is is a 3d graph. E.g you're at 5000rpm with 5/16 throttle opening, that's the two bottom axis, the height of the graph at that point is the value it will apply, like so many milliseconds squirt to the injectors, or x degrees of ignition advance. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

12-05-08, 09:12 PM	#13
Girth Member Mega Poster Join Date: Dec 2006 Location: Bolton Posts: 1,428	Re: playing with ECU Thats all too technical for me! __________________ Triumph Tiger 800 in Venom Yellow Suzuki DRZ400E in Racing Yellow

12-05-08, 09:38 PM	#14
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	Re: playing with ECU the graphs are just a easy way to see the programed numbers in the fuel and ignition maps. The first two are originals that come on the bike, the second two are the modified maps. Cheers Mark. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

12-05-08, 09:38 PM	#15
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: playing with ECU What modifications have you made to the "breathing" on that engine? __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

12-05-08, 10:04 PM	#17
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: playing with ECU So you've had to completely redo the map? As I presume standard pulse width would be far richer with bigger injectors. p.s giz a go mister __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

12-05-08, 10:12 PM	#18
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	Re: playing with ECU Yeah pretty much, but the way tuneboy works you can trim the map, try it then save the trims directly onto the map and add more trims, so it's done in stages, makes life simpler. Cheers Mark. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

13-05-08, 06:26 AM	#19
Stig Guest Posts: n/a	Re: playing with ECU Still look like mountains to me.

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