Jump to content

Recommended Posts

  • Member
  • Member For: 12y 3m 20d
  • Gender: Male
  • Location: Australia
Posted

I don't use livelink, but if you have set your base table to 0.85 then it's mega lean.. Drop your Low slope to like 110 and put your base fuel table back to standard but change the values in the bottom right to 0.8-0.82 or so

I put the entire base table to 0.85 to just confirm the commanded AFR is going to match and just drove it with very light throttle. I'm not actually going to leave it like that I just want to get the AFR to match.

What I want to know is why am I reading 16:1 with a commanded lambda of 0.85 with O2 feedback disabled. If the injector data is correct what else needs touching for it to match?

  • Legacy Donating Member
  • Member For: 13y 5m 25d
  • Gender: Male
  • Location: Liverpool
Posted

This is where the altering of the slopes comes into play, it's manipulating the SD calculations to achieve your targets

  • Member
  • Member For: 12y 3m 20d
  • Gender: Male
  • Location: Australia
Posted

I see so the SD maps do need to be tweaked, I thought unless you made substantial modifications they were ok but it appears I misread.

I'd rather alter the SD maps then just tweak injector slopes.

  • Legacy Donating Member
  • Member For: 13y 5m 25d
  • Gender: Male
  • Location: Liverpool
Posted

No I meant by altering the slopes your manipulating the SD tables, so no need to touch them

  • Member
  • Member For: 12y 3m 20d
  • Gender: Male
  • Location: Australia
Posted

Turbo those values are exactly what I calculated.

I thought changing slopes was the wrong way to go about the tuning?

  • Member
  • Member For: 23y 5m 28d
  • Gender: Male
Posted (edited)

Lower the slopes to make it richer

http://www.hptuners.com/forum/showthread.php?50588-ID-1000-injector-data-rough-idle-when-cold

These are the values used by a "pro" tuner on an FG. I don't like his injector offsets and the car used to run rough at startup indicating to me that the high slope may be a bit lean IMO. (BTW have not used ID1000) but we will get yours running fine.

Nevertheless lower the slopes by 5 to 10 lb and leave the rest the same. Its all about the slopes now. Forget SD. Go for a drive. If at cruise lean compared to desired lambda then lower the hi slope.

If at idle lean then lower the lo slope. Just chuck them both at 110 and see where you are.

Edited by turbotrana
  • Like 1
  • Member
  • Member For: 12y 3m 20d
  • Gender: Male
  • Location: Australia
Posted

Ok I'm sure it will be easy to get mixtures correct just by changing them. Don't think I'll have time to play again for at least 2 weeks though.

Jetturbo do you time via slopes these days?

Cheers

  • ...JD TUNING ADELAIDE...
  • Legacy Donating Member
  • Member For: 18y 3m 28d
  • Gender: Male
  • Location: Adelaide
Posted

I've never raced an asian before

On my bucket list though

  • Like 3
  • Member
  • Member For: 12y 3m 20d
  • Gender: Male
  • Location: Australia
Posted

Exactly my point, is the correct way not to tune the sd maps correctly?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...