ZUKIWORLD Online | Suzuki 4x4 Editorial and Forum

ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: beercheck on October 01, 2007, 01:07:10 PM

Title: Automatic transmission shifting -- Improvable?
Post by: beercheck on October 01, 2007, 01:07:10 PM
Anybody got any insight to firming-up the shifts?  You'd think there'd be some sort of ECM hack or profile for it, but I've found nothing via basic internet searches.

Mine's the '02 2.7 version. 

The "Power" setting does its thing okay, which is to raise part-throttle shift points, but the shifts themselves are painfully lazy....er...hypnotically smooth.
Title: Re: Automatic transmission shifting -- Improvable?
Post by: john1974 on October 01, 2007, 01:26:43 PM
Kinda the way they are.  I know mine improved alittle when I added 31x10.5 tires and 5.12 gears over my 4.62's.  but pretty much all autos are like that, not sure if you can improve it much.
Title: Re: Automatic transmission shifting -- Improvable?
Post by: SnoFalls on October 01, 2007, 04:23:58 PM
if ya can bump up the pressure it'll shift firmer ... I'm still investigating what it'll take to up the pressure some for the 3spd I'm transplanting into the 16v 4dr.
Title: Re: Automatic transmission shifting -- Improvable?
Post by: LilRed on October 02, 2007, 06:28:18 AM
I don't know about the newer '02 versions, but on the older trans., there are a couple of different vacuum modulators you can run, and adjust them to change the shifting.
Title: Re: Automatic transmission shifting -- Improvable?
Post by: beercheck on October 02, 2007, 06:46:14 AM
I don't know about the newer '02 versions, but on the older trans., there are a couple of different vacuum modulators you can run, and adjust them to change the shifting.

I'm pretty sure the newer ones are all electronic, which should make it easier.  GM/Ford/Mopar reprogrammers are all over the place.  Can't find one for Suzuki anywhere.
Title: Re: Automatic transmission shifting -- Improvable?
Post by: bentparts on October 02, 2007, 09:47:45 AM
Isn't the auto trans used in the trackicks of GM manufacture? If so a GM re programmer could possible work.
Title: Re: Automatic transmission shifting -- Improvable?
Post by: Yankee-Tim on October 02, 2007, 09:54:10 AM
Isn't the auto trans used in the trackicks of GM manufacture? If so a GM re programmer could possible work.

The 4spd is an AISIN Warner, not GM