early shifting with converter?
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Joined: Jul 2002
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From: Austin, TX
early shifting with converter? well i installed my locally built 4l60e and midwest 3200 last night...got the car up and running and after driving around a little while and trying to get the fluid close to where it should be (i used about 10.5 quarts) i finally put it in 2nd and went wot...felt good but it shifted ~6000 rpm while my shifts points are set to 6800...
i know my builder put in a transgo, upgraded internals, and did work to the pump...and also some vavlebody work?
why do you guys think it is shifting early?
and i tried 1st a couple times, but there was no real point since it took about a second to spin through it...
i know my builder put in a transgo, upgraded internals, and did work to the pump...and also some vavlebody work?
why do you guys think it is shifting early?
and i tried 1st a couple times, but there was no real point since it took about a second to spin through it...
Did atap confirm this?
A few things can happen.
1) Even slight wheel spin can mees things up.
2) A converter also changes the rate of acceleration which can shifts
3) The tranny upgrades can cause the tranny to shift faster, so the rpms do not build as high after the shift is requested.
That said I surprised there is a 800 rpm difference unless there was some spinning.
A few things can happen.
1) Even slight wheel spin can mees things up.
2) A converter also changes the rate of acceleration which can shifts
3) The tranny upgrades can cause the tranny to shift faster, so the rpms do not build as high after the shift is requested.
That said I surprised there is a 800 rpm difference unless there was some spinning.
Thread Starter
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Joined: Jul 2002
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From: Austin, TX
Originally Posted by Ragtop 99
Did atap confirm this?
A few things can happen.
1) Even slight wheel spin can mees things up.
2) A converter also changes the rate of acceleration which can shifts
3) The tranny upgrades can cause the tranny to shift faster, so the rpms do not build as high after the shift is requested.
That said I surprised there is a 800 rpm difference unless there was some spinning.
A few things can happen.
1) Even slight wheel spin can mees things up.
2) A converter also changes the rate of acceleration which can shifts
3) The tranny upgrades can cause the tranny to shift faster, so the rpms do not build as high after the shift is requested.
That said I surprised there is a 800 rpm difference unless there was some spinning.
i started in 2nd because im not on good enough tire right now to control wheelspin in 1st...
i drove around tonight and did some WOT runs starting in 2nd up to about 110...it did shift a little later...maybe around 6300 or so...
ill play with it a little more and maybe try taking a quart or so of fluid out and see if anything changes...its such a pain in the *** to check that tranny dipstick...especially with new fluid...it is still hard to tell where the level is...
i started in 2nd and manually shifted a couple times and ran it up to 6600 and it shifted fine...it shifts firm and crisp with no delay...which is much better than my stock tranny...
ill get it figured out overall im happy...
fluid capacity for a 4l60e with stock pan is ~11 quarts correct?
Thread Starter
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From: Austin, TX
Originally Posted by LS1BlackZ28
Keep in mind your tach is going to be ~200-300rpm lower than your actual engine rpm.
ive ataped it before with these shift points and on the tach it was looking ~6600 when the car was shifting ~6800
im getting a laptop tonight to log some wot runs to see where its shifting, etc.
Thread Starter
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From: Austin, TX
went to the track and got some new times...tranny still shifted around 6k
i was on et streets so there was no spinning...
fluid level is fine...
i had my tranny rebuilt with upgraded internals, custom pump, sun gear, clutches, vavlebody reprogram, transgo shiftkit, etc...
same time i threw in a midwest 3200...
since ive had the combo the car shifts at ~6k grand...
i ran some decent times manually shifting the car (sig), but i need to get this ironed out so it shifts right...
btw...the car was tuned by AMS and the shifts were set to 6800 rpm...car shifted fine before the tranny gave up and i had to get it built...
so if the shifts are set by mph and rpm, both have to be satisfied for the tranny to shift correct? i have never seen any posts of cars shifting early after a converter, only hitting the rev limiter...
should i just take the car back to AMS to see if Marsh can get it to shift at 6800 again?
EDIT: i looked around some more and the actual shift is done only by mph? If so could i be reaching a higher mph in each gear???
i was on et streets so there was no spinning...
fluid level is fine...
i had my tranny rebuilt with upgraded internals, custom pump, sun gear, clutches, vavlebody reprogram, transgo shiftkit, etc...
same time i threw in a midwest 3200...
since ive had the combo the car shifts at ~6k grand...
i ran some decent times manually shifting the car (sig), but i need to get this ironed out so it shifts right...
btw...the car was tuned by AMS and the shifts were set to 6800 rpm...car shifted fine before the tranny gave up and i had to get it built...
so if the shifts are set by mph and rpm, both have to be satisfied for the tranny to shift correct? i have never seen any posts of cars shifting early after a converter, only hitting the rev limiter...
should i just take the car back to AMS to see if Marsh can get it to shift at 6800 again?
EDIT: i looked around some more and the actual shift is done only by mph? If so could i be reaching a higher mph in each gear???
Last edited by mikemodano9c; Jan 28, 2004 at 11:51 PM.
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TECH Resident
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From: Poway, Ca. where GOD and the sun always shines
On a 2001 & 2002 model year vehicle, you will need to adjust the shift points after the TC install, the stock shift points set in the PCM no longer shift the vehicle properly.
JMHO
SteveC
JMHO
SteveC
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Verdad Gallardo Thread Starter
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From: Austin, TX
Originally Posted by SteveC
On a 2001 & 2002 model year vehicle, you will need to adjust the shift points after the TC install, the stock shift points set in the PCM no longer shift the vehicle properly.
JMHO
SteveC
JMHO
SteveC
i dont have stock shift points...
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From: Atlanta, GA
the transmission has a few shifting modes (like overheating/etc).
Mine are set at 6200/6400/6400/6400 redline 6600.
Now i got a run showing shift at 5705->4795, then 6189 -> 4800 from a 6mph roll. EFILIVE 6.3 logs.
Now oddly, coming out of the hole with ASR on at a toll booth, i saw the car shift at about 6200-6300 on the tach (as you said its kinda slow), so obviously the programming on the car may have to do with this.
I was paying attention to note it to the tuner, he explained theres a few different modes of operation that can alter your shift points (mph/rpm). I'll have to log a track run when the tracks open up so i can see whats really going on, including trans temp,ect's, misfires all that jazz.
too dangerous to do wot runs around here cops are out in mad force lately.
So yeah i've seen my car shift two different profiles so far, only caught one on the efilive log, but it was alot less than what the tuner said it was. Then again i've seen it shift properly with my eyes once, so something was different.
what kinda power are you laying down and what kinda tires did you get those 11's with man? take a look at my dyno (unlocked) and you think i got enough beef with a dead hook to run 11's? I know dyno-racing is lame, but i need to keep my hopes up
a 12.0 would make me happy. I can borrow some ET's if the 245-50-16 nitto 555R DR's can't hold it.
due to cold temps,lack of ability to do big burnouts on street (no jail for me), i've yet to dead hook my setup. It just spins em, i run 27psi hot on the nitto's for daily use.
Mine are set at 6200/6400/6400/6400 redline 6600.
Now i got a run showing shift at 5705->4795, then 6189 -> 4800 from a 6mph roll. EFILIVE 6.3 logs.
Now oddly, coming out of the hole with ASR on at a toll booth, i saw the car shift at about 6200-6300 on the tach (as you said its kinda slow), so obviously the programming on the car may have to do with this.
I was paying attention to note it to the tuner, he explained theres a few different modes of operation that can alter your shift points (mph/rpm). I'll have to log a track run when the tracks open up so i can see whats really going on, including trans temp,ect's, misfires all that jazz.
too dangerous to do wot runs around here cops are out in mad force lately.
So yeah i've seen my car shift two different profiles so far, only caught one on the efilive log, but it was alot less than what the tuner said it was. Then again i've seen it shift properly with my eyes once, so something was different.
what kinda power are you laying down and what kinda tires did you get those 11's with man? take a look at my dyno (unlocked) and you think i got enough beef with a dead hook to run 11's? I know dyno-racing is lame, but i need to keep my hopes up
a 12.0 would make me happy. I can borrow some ET's if the 245-50-16 nitto 555R DR's can't hold it. due to cold temps,lack of ability to do big burnouts on street (no jail for me), i've yet to dead hook my setup. It just spins em, i run 27psi hot on the nitto's for daily use.
Thread Starter
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From: Austin, TX
yah i think something with the converter or tranny changed the tuning requirements for it to shift at 6800...i dont think it is anything mechanical
i havent dynoed after the cam, stall, etc...but i am probably laying down the the 380 neighborhood...i made 340/350 with the stock stall with boltons/macs with crappy duals...
so im guessing i picked up around 40rw with the cam, 3 inch x pipe, etc...
i was on et streets for that 11 second pass...i saw what it could do on brand new nittos...i got a 12.1 and then a 12.3 and said forget it and just put on the et streets...
11.8 run on et streets the 60 was 1.78
12.1 on nittos the 60 was 1.84 (the wouldnt hold a wot launch)
and yes you definatley have the power to run an 11...all you will need is a dead hook...find some better tires...cause they wont hold...
i havent dynoed after the cam, stall, etc...but i am probably laying down the the 380 neighborhood...i made 340/350 with the stock stall with boltons/macs with crappy duals...
so im guessing i picked up around 40rw with the cam, 3 inch x pipe, etc...
i was on et streets for that 11 second pass...i saw what it could do on brand new nittos...i got a 12.1 and then a 12.3 and said forget it and just put on the et streets...
11.8 run on et streets the 60 was 1.78
12.1 on nittos the 60 was 1.84 (the wouldnt hold a wot launch)
and yes you definatley have the power to run an 11...all you will need is a dead hook...find some better tires...cause they wont hold...
Originally Posted by samz28
the transmission has a few shifting modes (like overheating/etc).
Mine are set at 6200/6400/6400/6400 redline 6600.
Now i got a run showing shift at 5705->4795, then 6189 -> 4800 from a 6mph roll. EFILIVE 6.3 logs.
Now oddly, coming out of the hole with ASR on at a toll booth, i saw the car shift at about 6200-6300 on the tach (as you said its kinda slow), so obviously the programming on the car may have to do with this.
I was paying attention to note it to the tuner, he explained theres a few different modes of operation that can alter your shift points (mph/rpm). I'll have to log a track run when the tracks open up so i can see whats really going on, including trans temp,ect's, misfires all that jazz.
too dangerous to do wot runs around here cops are out in mad force lately.
So yeah i've seen my car shift two different profiles so far, only caught one on the efilive log, but it was alot less than what the tuner said it was. Then again i've seen it shift properly with my eyes once, so something was different.
what kinda power are you laying down and what kinda tires did you get those 11's with man? take a look at my dyno (unlocked) and you think i got enough beef with a dead hook to run 11's? I know dyno-racing is lame, but i need to keep my hopes up a 12.0 would make me happy. I can borrow some ET's if the 245-50-16 nitto 555R DR's can't hold it.
due to cold temps,lack of ability to do big burnouts on street (no jail for me), i've yet to dead hook my setup. It just spins em, i run 27psi hot on the nitto's for daily use.
Mine are set at 6200/6400/6400/6400 redline 6600.
Now i got a run showing shift at 5705->4795, then 6189 -> 4800 from a 6mph roll. EFILIVE 6.3 logs.
Now oddly, coming out of the hole with ASR on at a toll booth, i saw the car shift at about 6200-6300 on the tach (as you said its kinda slow), so obviously the programming on the car may have to do with this.
I was paying attention to note it to the tuner, he explained theres a few different modes of operation that can alter your shift points (mph/rpm). I'll have to log a track run when the tracks open up so i can see whats really going on, including trans temp,ect's, misfires all that jazz.
too dangerous to do wot runs around here cops are out in mad force lately.
So yeah i've seen my car shift two different profiles so far, only caught one on the efilive log, but it was alot less than what the tuner said it was. Then again i've seen it shift properly with my eyes once, so something was different.
what kinda power are you laying down and what kinda tires did you get those 11's with man? take a look at my dyno (unlocked) and you think i got enough beef with a dead hook to run 11's? I know dyno-racing is lame, but i need to keep my hopes up
a 12.0 would make me happy. I can borrow some ET's if the 245-50-16 nitto 555R DR's can't hold it. due to cold temps,lack of ability to do big burnouts on street (no jail for me), i've yet to dead hook my setup. It just spins em, i run 27psi hot on the nitto's for daily use.