11p transmission 4l60e holding gears
Re: 11p transmission 4l60e holding gears
Thanks immortality
Re: 11p transmission 4l60e holding gears
Just noticed that 2-1 at 0 throttle is greater than the 1-2 at 0 throttle.
Nudge it down below that 13.69 figure.
Nudge it down below that 13.69 figure.
Re: 11p transmission 4l60e holding gears
Should be ok if i flip it around ie 1-2 i put at 15kph
and down change 2-1 at 13kph?
just when coasting slow into a stop sign or give way changing back to 1st gear at 13kph gives you a little bit more go than laboring away in 2nd gear ?
and down change 2-1 at 13kph?
just when coasting slow into a stop sign or give way changing back to 1st gear at 13kph gives you a little bit more go than laboring away in 2nd gear ?
Re: 11p transmission 4l60e holding gears
Knock yourself out
The auto will thank you for it!
The auto will thank you for it!
Re: 11p transmission 4l60e holding gears
hehe
thanks for the help mate
thanks for the help mate
Re: 11p transmission 4l60e holding gears
Im back with more questions hehe.
So my idle and cruise are pretty good around 14.5 af ratio or so give or take a little.
I hooked my wideband up of a spare battery this morning and fired up the car cause i had a feeling it was a little rich when cold. I know most cars need 20% more fuel at idle. When car is stone cold to aim for around 12.5 afr on petrol and taper off to say 14.5 7 at 50 60 deg c coolant temp.
The ute fired straight up no worries around 12.5 af ratio tho when i give it a lite stab of the throttle it bogs down mega rich to around 11.0 10 af ratio stumbles and comes back up. Stalled once on me from this this morning.
Is there some kind of transient throttle giving 2 much fuel on that initial stab of the throttle setting when cold somewere.
I have a small mazda 4 cylinder engine i tuned for myself couple of years ago and i know the cold starts need a lot of work to get right. Mine was a aftermarket ecu so needed more work again to get decent.
As the engine started to warm up say after the 1st min of running from cold i could see the afr starting to lean off up to around 13.5 13.8 afr so i know that part of the tune was doing its job ok
So my idle and cruise are pretty good around 14.5 af ratio or so give or take a little.
I hooked my wideband up of a spare battery this morning and fired up the car cause i had a feeling it was a little rich when cold. I know most cars need 20% more fuel at idle. When car is stone cold to aim for around 12.5 afr on petrol and taper off to say 14.5 7 at 50 60 deg c coolant temp.
The ute fired straight up no worries around 12.5 af ratio tho when i give it a lite stab of the throttle it bogs down mega rich to around 11.0 10 af ratio stumbles and comes back up. Stalled once on me from this this morning.
Is there some kind of transient throttle giving 2 much fuel on that initial stab of the throttle setting when cold somewere.
I have a small mazda 4 cylinder engine i tuned for myself couple of years ago and i know the cold starts need a lot of work to get right. Mine was a aftermarket ecu so needed more work again to get decent.
As the engine started to warm up say after the 1st min of running from cold i could see the afr starting to lean off up to around 13.5 13.8 afr so i know that part of the tune was doing its job ok
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- Joined: Thu Apr 09, 2009 12:31 pm
- cars: VH, VN, VS, VX
Re: 11p transmission 4l60e holding gears
Check out the Transient - Acceleration Enrichment - Transient AE temperature factor Vs Coolant temp table.
Re: 11p transmission 4l60e holding gears
See pic as the injectors are nearly double the size im guessing this is the data for the standard 19lb at 3bar injectors
super 6 36lb at 3.5 bar
if i take subtract say 45% of all these values in the table should that put me closer to were i should be ?
I can wideband again from stone cold and see how it is
super 6 36lb at 3.5 bar
if i take subtract say 45% of all these values in the table should that put me closer to were i should be ?
I can wideband again from stone cold and see how it is
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- transient throttle 30 dec.jpg (131.53 KiB) Viewed 2186 times
Re: 11p transmission 4l60e holding gears
Have you adjusted the Run A/F parameter: Displ/injector flow rate
Re: 11p transmission 4l60e holding gears
Yes I think of top of my head it's set around. . 10