ArmyVette

:eek: :eek: :eek:

I've got a thread in this section about upgrading my 2004 A4 coupe to a 3.42 rear diff and Transgo. Rear diff is already on order.

Called Transgo Tech Support to confirm some parts numbers to replace two kit parts that are plastic with aluminum parts. The guy in Tech Support says that the Transgo kit SHOULD NOT BE INSTALLED on 2003 and 2004 automatic transmission (4L60E) Corvettes. Their website reflects that this kit can only be installed on C5's up to and including model year 2002.

When I mentioned that it's the same transmission in the 2003 and 2004, he started talking about some sort of "heavy duty performance shift kit" (he must have said this 3 times) and told me I needed to call somebody called Steve Cole at The Turbo Shop (whatever that is).

Then he gave me the phone number to call to order the two aluminum replacement parts!!

Does ANYBODY know what the heck this guy is talking about? Does anybody have a Transgo installed on a 2003 or 2004?

I'm so confused on this issue, I don't know what to do next!

Help please!! :confused: :confused: :confused:

Adam@Amp'dAutosport.com

I THOUGHT 03 AND 04 WERE 4L65E. THAT MIGHT BE WHY :confused:

ArmyVette

Adam, if that's the correct answer, you deserve a prize!!

I've searched this topic for months and read everything I can get my hands on about this mod and NOT ONE mentions that there is a transmission changeover between the 2002 and 2003 model years that precludes putting this mod on the 2003 (and 2004).

:lurk: Lurking for others to chime in.


[Modified by ArmyVette, 4:58 PM 4/26/2004]

Tenderfoot

Good info. BTW, in the FAQ section on Yank Converter's site: http://www.converter.cc/frequently_asked_questions.htm, they state the following: "Yank Performance Converters can achieve maximum performance and efficiency without the use of shift kits. Shift kits dramatically raise transmission line pressure to increase shift firmness. Increased shift firmness will not increase performance, but create unnecessary stress on the transmission and other drive-line components." That statement made me shy away from installing a transgo kit when I did my gears/TC mod.

BHP

The 4L60E has not changed that much in '03, '04. The issue centers around torque mangement which must be removed to make the kit work. I have worked directly with Transgo tech. support on optimum feed hole sizes and they knew I had an '04. I have no issues, tranny shifts perfectly, but you must tailor several tables in LS1-Edit to optimize the tranny. Shifts points and base pressure as an example. Transgo's weakness is in understanding the PCM programming parameters especially if they are referring to Steve Cole.

ArmyVette

Tom, I think you've pegged the issue. When Transgo's service technician suggested I contact Steve Cole, (finally found their website: http://www.ttspowersystems.com/index.htm) I knew something was really amiss.

I also thought that most competent Vette repair shops could do make adjustments to the PCM for the aftermarket items they installed. I am rapidly finding that that is NOT the case.

I'm rapidly reaching the conclusion that this mod is WAY over my head. I've sent an email to CF's resident Transgo expert, Vince Stella (vstella) but haven't heard from him yet. I'm certain he can shed some light on what needs to be done so that I can install this kit on my 04 and get it adjusted for street use.

Where would I get an LS1 edit from?

BHP

Jeff: There are many tuners on the east coast that can install the Transgo kit for you and use LS1-Edit for calibration. This would be best if you don't have experience in this area.

LS1-edit is a program you install on a laptop computer to program the PCM. You must have PC knowledge and understand the PCM parameters to use it.
You can purchase at http://www.carputing.com Ken Kelly is the contact.


[Modified by BHP, 4:16 PM 4/26/2004]

NICK YOSKIN

hey armyvette,

love it here :cheers: :cool: :seeya :auto: :party:

ArmyVette

Thanks for the info, Tom. Got a laptop. Guess I'll have to look up more info on LS1 Edit.

Is there an "LS1 Edit for Dummies" out there somewhere? :lol: :lol: :lol:

warpster

You might want to consider HPTuners.com for the PCM programmer also. They make a competitive product to LS1Edit. It is getting good reviews....just another alternative for you to consider! :cheers:

Buckmaster

TTS....Steve Cole :lolg: :rofl: :troll

I wouldn't that fool touch my car if you paid me :rofl: :lolg: :troll

BHP

LS1-Edit sites;

http://www.ls1tuning.com/iboard/ \

http://www.ls1edit.com/pipermail/ls1edit/

gojo

I've had a Trango in my 2003 for 2 years and it works great. The only difference that I know of in late model A4's is the heavy duty bands. The aluminum parts are accumulator pistons used in 700R4's and can be bought from your Chevy dealer. You will use one to replace the plastic one in your trans. There are 2 in the pack, only one is correct. Shift points are not affected by the Transgo. I don't know if torque reduction removal is a requirement, but I did it to avoid it happening.


[Modified by gojo, 12:13 PM 4/27/2004]

Mel 2001

Steve Cole not :withstupid: :cuss :cuss :cuss :cuss :cuss

GTC

:lurk: And I was thinking of putting a TransGo in my '04...

ArmyVette

The heck with it. I'm doing the install anyway. Bought the kit this morning.

Got a bunch of IMs from people that have this installed in their 03 and 04 and are having no problems and lots of fun with this kit.

I'll keep you all posted and THANK YOU all for the great input on this and the related threads.

:thumbs: :thumbs: :thumbs:

gojo

The acc. piston kit is # DK61985A and the correct piston to use is #4430. Get it, the plastic one cracks. I would also use these plate hole sizes. A(3rd) and E(4th) .155. That will speed up the 3 and 4 shifts. 2nd is okay as is. Also, make sure the EPC screen fix is done. Mine was skipped it and may have caused my clutches to burn.

BHP

Per Transgo the .155" hole sizes are for an aftermarket stall converter. For stock they recommend .125" for "A & E" holes.

gojo

Their written instructions recommend .082 for A and E with a stock converter and .120 for E and .096 for A for a stall converter. Their #'s have resulted in unsatisfactory shifts. They also recommend raising B with a stall, which is crazy. The 1-2 shift is plenty firm. Ask anyone who has used their #'s and they will tell you 3rd and 4th are soft compared to 1st and 2nd.

BHP

The '04 separator plate gasket is no bigger the .125" which requires it to be punched out to get to .155". The 2-3, 3-4 shifts at part throttle will be soft since increased hole sizes only work for WOT. The PCM controls the shift pressure. You can make the shifts firmer at part throttle by increasing the base pressure vs. torque values with LS1-Edit. I set my 2-3, 3-4 shifts to 50 PSI from 0-200 ft lbs. The shifts are equally firm as 1-2 with these settings.