4l60E upshift question

Reply Subscribe

Thread Tools

Search this Thread

Feb 8, 2006 | 07:52 PM

richy rich

Thread Starter

Racer

Joined: Apr 2003

Posts: 305

Likes: 0

4l60E upshift question

Hey I just had my tranny in my 94 done[auto].How can I make it hold first gear longer?I installed a mild hi-stall,& it seems to get outta 1st gear really soon,& into second too quickly[when left in drive] when I leave a stoplight under light load.Is it ALL done throught the PCM?Is it going into second gear quicker cause the looser converter is making the rpm's come up fast[but yet the car isnt going any faster]?Tranny shifts kinda soft too,but there is something the tranny guy can "tweak'to firm it up!![so Im told?]

Last edited by richy rich; Feb 8, 2006 at 08:24 PM.

Feb 8, 2006 | 08:29 PM

Corvette Kid

Large Impressive Member

Joined: Jul 2003

Posts: 65,811

Likes: 71

From: Good health is merely the slowest possible rate at which one can die

St. Jude Donor '04-'05-'06-'07

Assuming all is well mechanically, shift points can only be changed w/ programming. Firmness can also be changed at that time.

Feb 8, 2006 | 09:19 PM

96BLKTN

Pro

Joined: Jan 2004

Posts: 626

Likes: 2

From: Nashville

I can change shift rpm, firmness with my HyperTech PP3 it does have some uses.

Feb 8, 2006 | 10:07 PM

rayosequis

Pro

Joined: Nov 2000

Posts: 703

Likes: 2

From: Cypress Texas

What is the stall speed ? Under part throttle accelaration it is going to shift like that as the converter has not fully engaged. The real question is how does it shift at wide open ?

Feb 8, 2006 | 11:46 PM

aboatguy

Race Director

Joined: Jan 2005

Posts: 10,641

Likes: 13

From: Slidell Louisiana

Quote:

Originally Posted by Corvette Kid NC

Assuming all is well mechanically, shift points can only be changed w/ programming. Firmness can also be changed at that time.

Quote:

Originally Posted by rayosequis

What is the stall speed ? Under part throttle accelaration it is going to shift like that as the converter has not fully engaged. The real question is how does it shift at wide open ?

rayosequis has the right idea the shift tables shift the tranny at a much lower speed at low throttle conditions. Bring that puppy to WOT and see what it does. You can bump up the lower throttle position shift points too, and as Corvette Kid NC stated you can even change the shift firmness via the PCM .

Mike

Feb 9, 2006 | 07:00 PM

richy rich

Thread Starter

Racer

Joined: Apr 2003

Posts: 305

Likes: 0

Well I use to 2 foot it to 1400[stock converter w 3.08 gears] & flash to about 2200-2400.Now It's 2300 foot & 3300-3500 flash.Its a reworked fact. coverter.ive since learned that my tranny guy used some kind of kevlar clutch's,& that they need some break in time.After 50 miles on my fresh tranny,I can feel that already it shifts firmer.As far as shift points go,they seem a little low[no lower than before mind you]but I can live with it.K-next Question,I have a PCM'S for less PCM.Can I still use my Hypertech-3,to firm up shift's & play with my shift points?If I could-all would be happy!!!!

Feb 9, 2006 | 07:07 PM

Corvette Kid

Large Impressive Member

Joined: Jul 2003

Posts: 65,811

Likes: 71

From: Good health is merely the slowest possible rate at which one can die

St. Jude Donor '04-'05-'06-'07

Quote:

Originally Posted by richy rich

Question,I have a PCM'S for less PCM.Can I still use my Hypertech-3,to firm up shift's & play with my shift points?If I could-all would be happy!!!!

Probably not but I've got a better suggestion. Get the B&M Shift Plus. It's a control module that wires into two wires on your PCM and that's it. It should be under $40. It has three settings with the flip of a switch. Stock, firm and extra firm. It's one of the first things I ever put on my car after my speed shop guy told me about it. I've had it for about 2 1/2 years and love it.