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Thinking of putting in another shift kit...hmmm

 
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billy101
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PostPosted: Thu Mar 08, 2012 2:18 pm    Post subject:  Thinking of putting in another shift kit...hmmm Reply with quote

Hey all..

You're probably going to call me crazy for wanting to open up this transmission we finally just got running right but I really miss the shift kit. The PCM from Overkill does a great job at firming up the shifts, but the downshifts still lack. I can get a VERY quick 3-1 downshift, but any other downshift like 4-3 or 3-2 is slow. Not overly slow, but not what I'm used to. I just took the accumulator bore out of the 2001 transmission with the INTENSE shift kit installed. Wondering what you guys think I should do. I'll save the fluid from the 2002 transmission when I drop the pan to install it, but should I go through with this? I can drop the pan, install the shiftkit and button it all back up in probably less than 3 hours one afternoon.

Should I go for it? Transmission temp never goes over 170 and it has about 2k miles on the rebuild and all is well, but I want firmer upshifts and downshifts!

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2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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Pitch Black SS
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PostPosted: Thu Mar 08, 2012 5:56 pm    Post subject:   Reply with quote

I would contact Overkill first, some tunes dont play well with shift kits

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billy101
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PostPosted: Fri Mar 09, 2012 12:03 am    Post subject:   Reply with quote

Pitch Black SS wrote:
I would contact Overkill first, some tunes dont play well with shift kits


Hmm, I thought they worked hand in hand. I had the Overkill PCM in my 01 with the shift kit with no adverse affects. Shifted like a racecar - what I like lol

_________________
2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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Pitch Black SS
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PostPosted: Fri Mar 09, 2012 1:21 pm    Post subject:   Reply with quote

billy101 wrote:
Pitch Black SS wrote:
I would contact Overkill first, some tunes dont play well with shift kits


Hmm, I thought they worked hand in hand. I had the Overkill PCM in my 01 with the shift kit with no adverse affects. Shifted like a racecar - what I like lol


I would still contact him, tunes change from year to year due to electronic and physical differences in the car.

Worth a phone call to prevent any damage to you new transmission

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billy101
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PostPosted: Fri Mar 09, 2012 1:24 pm    Post subject:   Reply with quote

This is true. I will contact him. It's really just the downshifts that bother me. Upshifts are firm and good, but the downshifts lack a lot. I may try and grab a video or two in a little while. Otherwise it's running great. I'm starting to think I need to let it be - I do too much to this car haha

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2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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PostPosted: Fri Mar 09, 2012 1:28 pm    Post subject:   Reply with quote

I just got a shift kit today for free. Laughing Sad

I would give him ring just in case. Don't want another fiasco with this one. Crying or Very sad

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billy101
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PostPosted: Mon Mar 12, 2012 9:23 pm    Post subject:   Reply with quote

You put your shift kit in Pushrod?

I'm reading all over the place online that a tuned PCM + a "mild" shift kit will net great results. My shifts are "firm" you can say, but there is a delay in the downshift, that I KNOW the shiftkit will get rid of. I will of course disconnect the PCM while doing this so it will relearn shift pressures.

I used this write up my first go around along with the paper work my INTENSE kit came with.
http://ls1tech.com/forums/ls4-.....movie.html


Tomorrow afternoon I'm going to tackle this. Instead of using the #3 spacer, I will be using the shorter #2 spacer under the accumulator piston. I don't think I will be installing the red spring either in the 2-3 accumulator. I will put the 1 spacer under the 2-3 big coil spring on top of the accumulator as well. Being that the transmission fluid is only 2400 miles old I will be re-using it....but I will be changing the filter - can't hurt!


When they did the rebuild they should have replaced the seals on the accumulator pistons correct? I may want to replace them if I feel like they aren't in great condition - GM only part? or can I get them from somewhere else? I see they have them on rockauto.

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2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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PostPosted: Mon Mar 12, 2012 10:26 pm    Post subject:   Reply with quote

I'm not sure what's so critical about the speed of the downshifts. The car isn't a circuit racer and it has an automatic anyway.

Given the nightmare you had getting the car running properly in the first place, I can't fathom why you would risk ruining it by putting in something (I think is) unnecessary.

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billy101
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PostPosted: Mon Mar 12, 2012 10:30 pm    Post subject:   Reply with quote

Lingenfelter wrote:
I'm not sure what's so critical about the speed of the downshifts. The car isn't a circuit racer and it has an automatic anyway.

Given the nightmare you had getting the car running properly in the first place, I can't fathom why you would risk ruining it by putting in something (I think is) unnecessary.


To be honest, the downshift speeds lack severely, it seems to take it's sweet ass time between downshifts like 3-2 and 4-3 or 4-2, and time between shifts is slipping clutches. I'm looking to further improve transmission life and quality, not looking for race like performance. We found out the issue (overheating due to a faulty transmission cooler). We have had a few 80+ degree days already and even with my heavy foot, and a loaded up car of friends, the transmission temperature has never jumped over 175* F. I'm just looking to firm up things so I can get as long as possible on this transmission.

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2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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PostPosted: Tue Mar 13, 2012 8:05 am    Post subject:   Reply with quote

I would be putting the shift kit on the lowest setting, pcm + shift kit you wont have to worry about the soft parts anymore but you may have to worry about the harder parts. try to get the perfect balance by not making it shift too hard.
when i was with overkill I asked if he could make it shift harder, he said he could but if he goes to high then it could take reliability away.
my downshift are quick. but maybe due to incar tune? you should take a video, I could tell you it my car acts the same. or i could take some vids of how my car reacts cause im bored ALL day lol.

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PostPosted: Tue Mar 13, 2012 12:37 pm    Post subject:   Reply with quote

I'm just busting your balls Billy. I got a max adapt long shift code. Laughing

I can see prolonging the life of your trans with a shift kit, but would be hesitant tearing back open again.

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04ImpalaSS wrote:
How much miles are on those seats? How much pounds of ass were applied to the seat during every trip? Lol

wedebrook wrote:
This thread is about *this* far from being about me, all oiled up, eating chili mac in a walmart bathroom.

nightryder wrote:
My c**k broke.
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billy101
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PostPosted: Tue Mar 13, 2012 11:40 pm    Post subject:   Reply with quote

Here's a 6:50 video for you all. As you can see this transmission runs great, it seems very solid. The shifts are flawless, combined with the Overkill PCM I can see myself driving this car for a few more years to come. Very pleased with the outcome. I did my own combination of springs/spacers in the accumulator. When WOT the shifts are very firm and they throw you back in your seat, same goes with the downshifts now - a big improvement. When accelerating like normal, it's not much of a firmer shift than before, but it is a noticeable difference other than just the PCM tune.

http://youtu.be/Kj3n-ZTTk1s

My friend Brett was watching me the whole time going "I can't believe you're doing this after all the s**t you went through" and I was kind of saying the same thing to myself as I took out the last bolt of the transmission pan, but I'm glad I did. The transmission pan looked brand new - absolutely nothing on the pan or the magnet. I changed out the filter just because I have a few extras laying around - it can never hurt!

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2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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PostPosted: Tue Mar 13, 2012 11:58 pm    Post subject:   Reply with quote

I am glad you have it all back together without any issues. Fingers crossed everything remains in good running order for a long time to come.

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PostPosted: Wed Mar 14, 2012 12:22 pm    Post subject:   Reply with quote

My tune plus a typical 3800 shift kit play fine together because it doesn't modify the oil passages. It's when you get a TEP valve body with the drilled channel plate that I need to do retuning for the shift kit and valve body.

I still think you're nuts for taking the trans pan off after all your fiasco! But pleased you're enjoying and thanks for the video.

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billy101
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PostPosted: Wed Mar 14, 2012 1:52 pm    Post subject:   Reply with quote

Overkill wrote:
My tune plus a typical 3800 shift kit play fine together because it doesn't modify the oil passages. It's when you get a TEP valve body with the drilled channel plate that I need to do retuning for the shift kit and valve body.

I still think you're nuts for taking the trans pan off after all your fiasco! But pleased you're enjoying and thanks for the video.


Good to know they play well together! After the 93 octane tune my car has never ran better - my dad even noticed a difference.

I kept saying to myself "I cannot believe I'm doing this" with every bolt I was removing, but I'm glad I did. My up-shifts are immediate, nothing is too harsh.

_________________
2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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