4 Speed Automatic Shift Mod (FREE)

Questions about axles, transmissions, differentials, pretty much anything that connects the engine to the wheels, this is the place for those questions.
NickKo
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Post by NickKo » Wed Jan 30, 2008 8:01 pm

TiNK wrote:i did the hlfahemi shift modon my 3 speed... and itwasnt worth the trouble....
It "depends" on how you set it up, too.....

Line pressure adjustment, and also the (precise) length of the 'rod' that you put in to replace of one of the springs will affect shift quality.

If you set it up so that there is almost no play or zero play, then it can make the shifts too harsh.

But anyways, this applies only to the "DIY" shift kit for the 3-speed ATX used on the 1st gen and early 2nd gen Neons.



Regarding the 4-speed transmission:
I read a long while back, in 'Mopar Now' (remember that mag?) about how Chrysler was experimenting with putting a Stratus 4-speed into the 1st generation Neons, and actually had a few test mules running around the proving grounds !!
The reason that they gave for the 4-speed not being used in production 1st gen Neons at that time, is because the engine compartment was so tight with that trans installed, that overheating of the trans was a problem.

Makes you wonder what could have been .... after all, if they were ABLE to (barely) fit a 4-speed ATX into the 1st gen Neons...... hmmmmm. :-k

-Nick
-1998 2-dr SOHC MTX= 57mm TB; Maddog STS
-2000 Ply.LX w/MTX = Maddog STS; CAI; 2.5 exh.; 60mm T/B
-2001 ATX w/Syked PCM + Magnum header
-2001 ACR w/SRT T/B bored out to 55mm

Official "I'm Going to Drive My Neon till it Dies" Club #000009

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keeders08
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Post by keeders08 » Sat Feb 09, 2008 8:12 am

esteinmaier wrote:Yes. Wire the VSS signal wire to a switch, and when the circuit is opened, PCM doesn't know the vehicle speed, therefore can't govern it.
wow...i never even thought of that. lol
Keeders
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JJR760
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Post by JJR760 » Wed Apr 16, 2008 12:35 pm

so did anyone ever try this then?

DOSneons
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Post by DOSneons » Mon Dec 22, 2008 4:44 pm

ok well i wanna do this on my 05 but where is this wire
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evilsrtd
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Post by evilsrtd » Mon Aug 17, 2009 1:28 pm

So big question for all of us out here... if we got a 2005 auto neon, basically we cant do this mod cuz there aint a tcm its integrated into the pcm right?

and 2. is there another way to do this so that we can have this mod?

EVIL_SRTD(trusleeper)

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Post by occasional demons » Mon Aug 17, 2009 2:22 pm

evilsrtd wrote:So big question for all of us out here... if we got a 2005 auto neon, basically we cant do this mod cuz there aint a tcm its integrated into the pcm right?
Correct
evilsrtd wrote:and 2. is there another way to do this so that we can have this mod?
Unless Howell's new AF/X for NGC can also change the shift characteristics, prolly not.

And I doubt they even thought of upgrading the ATX part of it.
Bill
Olha Koba, a psychologist in Kyiv, said that “anger and hate in this situation is a normal reaction and important to validate.” But it is important to channel it into something useful, she said, such as making incendiary bombs out of empty bottles.
2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
2021 Forester

spneon
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Post by spneon » Fri Jan 15, 2010 8:13 pm

just curious i know its old but has anyone found this wire i willing to try it if i can find it.

occasional demons
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Post by occasional demons » Sun Jan 24, 2010 10:31 pm

The VSS wire? Or the one to make it shift harder? If you have an '03 up, the shift mod wire does not exist.
Bill
Olha Koba, a psychologist in Kyiv, said that “anger and hate in this situation is a normal reaction and important to validate.” But it is important to channel it into something useful, she said, such as making incendiary bombs out of empty bottles.
2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
2021 Forester

spneon
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Post by spneon » Mon Jan 25, 2010 1:18 pm

well since you asked how bout both. and it is a 02

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stairmaster3001
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Post by stairmaster3001 » Wed Oct 13, 2010 7:49 pm

dude im just swapping my transmission to manual

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INVUJerry
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Post by INVUJerry » Wed Oct 13, 2010 7:55 pm

stairmaster3001 wrote:dude im just swapping my transmission to manual
Make sure you get all the wiring for under the hood, along with the MTX ecu so you have a working speedometer, and easy to start the car.

Trappy
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Post by Trappy » Mon Nov 01, 2010 11:14 pm

Can anybody please explain this mod to me? The links are screwed up...
-Ty

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Haganracing
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Post by Haganracing » Tue Nov 02, 2010 12:04 am

invujerry wrote:
stairmaster3001 wrote:dude im just swapping my transmission to manual
Make sure you get all the wiring for under the hood, along with the MTX ecu so you have a working speedometer, and easy to start the car.
Hahahahahaha...... fuck my life.... :lol:
occasional demons wrote:So maybe a FuzzyDanteHagan sammich might just beat a FuzzyHagan. :-k
Danteneon wrote:My advice is to fight those urges and enjoy the fact that you have both X and Y chromosomes. And an SRT. And your hand. You don't need a girl.

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stairmaster3001
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Post by stairmaster3001 » Tue Jan 25, 2011 3:01 pm

yea im just going to swap my car to manaul. cause no matter what i do i wil still not like the auto

timk225
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Post by timk225 » Fri Mar 29, 2013 11:40 am

Back in the good old days of 440's and Hemis and 727 automatics in 2 ton musclecars, there was none of this wussy torque reduction for shifts BS. You had WOT upshifts that could break the tires loose and the 727s would handle it forever.

Chrysler needs to be less worried about saving 23 cents on extra transmission parts and all the NVH reduction crybabies, and build them RIGHT and build them TOUGH so they can take anything the engine can put to them and then some!

This country is going straight to hell.

occasional demons
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Post by occasional demons » Fri Mar 29, 2013 1:55 pm

They are built to meet CAFE requirements, not make and handle tons of power. Buy a truck or Hemi powered car if you need that from your modern stock form ATX. If these didn't get good fuel economy, there would be no hemi powered cars, or trucks being made. That is the result of CAFE. Not necessarily how they wanted to build these cars, it's how the HAVE to build them.

badgett wrote:Couldn't you do the same thing with the VSS wire to stop the speed limiter? I did this on my Ford ZX2 and it worked. No speedometer when switched on but it doesn't stop at 105 mph anymore. Got up to 120 with another car behind me telling me how fast I was going.
Tho on a 41te/40te, not having the VSS signal, which doubles as the out put speed signal, may just put the TCM into limp mode, or at least set a p0700 code.

There must be a correlating output speed with the input speed, so the TCM knows the ATX has shifted properly, and is not slipping.

There is of course no potential powertrain issues with the 31th/MTX.
Bill
Olha Koba, a psychologist in Kyiv, said that “anger and hate in this situation is a normal reaction and important to validate.” But it is important to channel it into something useful, she said, such as making incendiary bombs out of empty bottles.
2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
2021 Forester

occasional demons
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Post by occasional demons » Tue Jul 16, 2013 2:11 pm

FlexdXJ wrote:[I think this info needs to be added to the sticky.
Done.


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POWERTRAIN CONTROL MODULE C2 (2.0L) - BLACK 40 WAY
CAV...CIRCUIT...................FUNCTION

63......T10 18YL/DG............(EATX) TORQUE MANAGEMENT REQUEST SENSE

76......T41 18BR/YL.............(EATX) TRS T41 SENSE *MAY BE BK/WT ON PT
Bill
Olha Koba, a psychologist in Kyiv, said that “anger and hate in this situation is a normal reaction and important to validate.” But it is important to channel it into something useful, she said, such as making incendiary bombs out of empty bottles.
2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
2021 Forester

03SXTNeon
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Post by 03SXTNeon » Wed May 14, 2014 2:29 pm

Nooooooooooo the links are dead!!! I want to do something to improve this slushbox!! super lame!

NickKo
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4-Spd. Automatic Shift kit !! (not free, but cheap enough)

Post by NickKo » Sun May 18, 2014 11:15 am

03SXTNeon wrote:Nooooooooooo the links are dead!!! I want to do something to improve this slushbox!! super lame!
There is NEW hope !!!
It appears that Transgo is now making shift kits for the 4-speed ATX !!! :!:


http://www.amazon.com/42RLE-TRANSGO-Shi ... B009SOVRGU

http://www.ebay.com/itm/TRANSGO-A604-41 ... 0463541003

Description for future searches (in case the links go dead):
'TRANSGO A604 41TE A606 42LE SK604/42LE SHIFT KIT'



Who knows.... Maybe there just might be a 4-spd ATX Neon in my future someday, after all. :D


- Nick
-1998 2-dr SOHC MTX= 57mm TB; Maddog STS
-2000 Ply.LX w/MTX = Maddog STS; CAI; 2.5 exh.; 60mm T/B
-2001 ATX w/Syked PCM + Magnum header
-2001 ACR w/SRT T/B bored out to 55mm

Official "I'm Going to Drive My Neon till it Dies" Club #000009

occasional demons
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Post by occasional demons » Sun May 18, 2014 12:11 pm

t vago wrote:This mod won't work with an NGC. You have to have the traditional PCM/TCM setup, because the wire in question basically carries a torque request sense signal from the TCM to the PCM, asking the PCM to reduce power momentarily while the TCM shifts a gear. The NGC internalizes this signal,

BTW, I was one of the guys who originally thought up this mod on 2GSS.org, and it travelled to Stratusphere from there. It does provide a noticeable improvement in shift, but I would not describe it as earthshattering or anything.
An actual shift kit would be a better route, tho you could still cut the wire, if you have an '02.

This mod only keeps the engine output from dropping during shifts, it doesn't really firm them up. Without added pressure to the clutch pack, you will likely have quicker than normal ATX failure by only cutting the wire.
Bill
Olha Koba, a psychologist in Kyiv, said that “anger and hate in this situation is a normal reaction and important to validate.” But it is important to channel it into something useful, she said, such as making incendiary bombs out of empty bottles.
2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
2021 Forester

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