Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > LS4 Performance
Sign in using an external account
Register Forgot Password?
Search

LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Need Tuner advice for Tranny

Reply
 
Thread Tools Search this Thread
Old 03-27-2010, 10:14 PM   #1
Launching!
 
Tappeter's Avatar
 
Trader Rating: 2
Join Date: Mar 2009
Location: Central NY State
Posts: 257
Default Need Tuner advice for Tranny

I currently have the Standard Quick Tune installed on my SS from my Superchips Cortex tuner. Its the easy canned tune for both engine and tranny. There is the capability to do advanced tune for both.
My concern is this:
Right now at full throttle, under hard acceleration, I get a very definate hard shutter when tranny shifts. The whole car shakes. Almost like the tires are skipping on the ground. Otherwise at part throttle,even brisk acceleration, no problem, it shifts fine.
Anyone familar with this tuner? Any advice for doing an advanced tune. I am pretty sure I can adjust the tranny tune (shift points or line pressure) but how much is enough and how much is too much?
__________________

2007 Monte Carlo SS White with Red Pace Car checkered flag graphics, Red SS inserts and Taz graphics.
3" Hogan catted downpipe, 3" electric exhaust cutout, cortex tuned, custom cai w/aluminum box, relocated iat sensor, custom made 1.5" throttle body spacer, wrapped cross pipe, rotated engine mount, Pace Car side graphics, really good looking driver, upgrade speakers and 6 cd changer.
Tappeter is offline   Reply With Quote
Old 03-27-2010, 11:18 PM   #2
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

I have that tuner too and I am scared to play with the line pressures and the other trans stuff. Maybe someone knows about it, because I would also like to know.
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-27-2010, 11:47 PM   #3
Launching!
 
Tappeter's Avatar
 
Trader Rating: 2
Join Date: Mar 2009
Location: Central NY State
Posts: 257
Default

I just emailed Superchips tech support for advice, if they answer I will pass along info, but don't get your hopes up. I have emailed them before and gotten no reply.
There was discussion/rumor some time ago they were going to have a 93 octane tune (in addition to the 91 octane tune), I emailed Superchips about it several times and was was pretty much ignored.
__________________

2007 Monte Carlo SS White with Red Pace Car checkered flag graphics, Red SS inserts and Taz graphics.
3" Hogan catted downpipe, 3" electric exhaust cutout, cortex tuned, custom cai w/aluminum box, relocated iat sensor, custom made 1.5" throttle body spacer, wrapped cross pipe, rotated engine mount, Pace Car side graphics, really good looking driver, upgrade speakers and 6 cd changer.
Tappeter is offline   Reply With Quote
Old 03-28-2010, 04:14 AM   #4
TECH Fanatic
 
Trader Rating: 3
Join Date: Feb 2009
Location: Highland, MI
Posts: 1,287
Default

that's pretty typical with this trans. Mine use to do it when i bought the car 4 years ago. i bumped up the line pressure enough to make it go away..... 45000 miles later and the trans is still kickin'. Not sure how to do it with the programmer you have since I used Hptuners.
__________________
1999 TA, 98mm fast toys, 85mm MAF, 11.1:1, CNC 243, EPS custom cam, LS6 intake, 1 3/4", stock catback with flowmaster 80, UD pulley, 4L80E, Precision 4K, HPT, 2.73 gears, billet diff cover, nitto NT's

2000 GTP 13.2@104 on street tires, retired.
JDMC5 is offline   Reply With Quote
Old 03-28-2010, 04:55 AM   #5
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

On the cortex it overs a section where we can program the line pressures, I believe max is 20psi above stock.
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-28-2010, 10:24 AM   #6
On The Tree
 
Heslekrants's Avatar
 
Trader Rating: 0
Join Date: Jan 2009
Location: Sherwood OR
Posts: 127
Default

Quote:
Originally Posted by havelegs View Post
On the cortex it overs a section where we can program the line pressures, I believe max is 20psi above stock.
I'm running the +20psi right now and like the quicker shifts. It's not shift kit hard but way better than the factory.

Talked to a guy(newbee) at Superchips last week about the 93 Tune and he said nobody is working on our platform anymore. I was told 9 months ago the 93 Tune + gear change options would be out almost anyday.
__________________
2008 GXP Inferno hood, Magnaflow cat back, K&N CAI, Falken 452s 275/40/18 & 245/45/18, Superchips Cortex Programmer #2950
13.88@100mph (stock tires) sold 07/26/10
Heslekrants is offline   Reply With Quote
Old 03-28-2010, 11:05 AM   #7
TECH Addict
 
94ss06gxp's Avatar
 
Trader Rating: 5
Join Date: Aug 2009
Location: Mid MI
Posts: 2,351
Default

i for sure wouldnt get a cortex after reading this
__________________
2012 Mustang GTWhite M6, Brembo, 3.73, Bama tune, Lethal o/r X, Corsa 2006 TBSS - 219/227 .606/.613 112+2, SW long tubes, LS2 Portworks, IeatSRT CAI, FMS Tune, Nitrous Works 150shot, stg 6 4l70, MidwestLSX 3200 stall, Kbees Coilovers. SOLD . .2008 G8 GT White- SOLD. . .1997 Camaro Z28/SS Clone -M6, Kooks, Cammed, Milled, Ported, Polished, Geared, etc.SOLD . . 2006 Grand Prix GXP[/COLOR] - HPtuned, Magnaflow. . .
94ss06gxp is offline   Reply With Quote
Old 03-28-2010, 01:24 PM   #8
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

Quote:
Originally Posted by Heslekrants View Post
I'm running the +20psi right now and like the quicker shifts. It's not shift kit hard but way better than the factory.

Talked to a guy(newbee) at Superchips last week about the 93 Tune and he said nobody is working on our platform anymore. I was told 9 months ago the 93 Tune + gear change options would be out almost anyday.
God I'm so scared to try this! I run 93 octane in mine and I hear a little pinging when I get on it, maybe it's crappy gas or should I just use 91 octane?
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-28-2010, 04:21 PM   #9
On The Tree
 
Heslekrants's Avatar
 
Trader Rating: 0
Join Date: Jan 2009
Location: Sherwood OR
Posts: 127
Default

Quote:
Originally Posted by 94ss06gxp View Post
i for sure wouldnt get a cortex after reading this
The + I see with the Cortex is I can put the GXP back to a stock tune & use it on my 09 CTS-V or pay an extra $200 & tune 2 cars at the same time.



Now all I need to do is to buy the CTS-V. I'm waiting until they hit the $35K price point. I've seen really nice one's sell for $45K.

Quote:
Originally Posted by havelegs View Post
God I'm so scared to try this! I run 93 octane in mine and I hear a little pinging when I get on it, maybe it's crappy gas or should I just use 91 octane?
What tune are you running?

I'm running the 91 Tune with 92 Gas without any pinging.
__________________
2008 GXP Inferno hood, Magnaflow cat back, K&N CAI, Falken 452s 275/40/18 & 245/45/18, Superchips Cortex Programmer #2950
13.88@100mph (stock tires) sold 07/26/10
Heslekrants is offline   Reply With Quote
Old 03-28-2010, 06:20 PM   #10
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

Quote:
Originally Posted by Heslekrants View Post


What tune are you running?

I'm running the 91 Tune with 92 Gas without any pinging.
The 91 octane. I think it might be the gas company.
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-28-2010, 08:04 PM   #11
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

I just put my trans at 20psi, I don't notice much of a difference over I guess what the superchips value is.
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-28-2010, 09:56 PM   #12
Launching!
 
Tappeter's Avatar
 
Trader Rating: 2
Join Date: Mar 2009
Location: Central NY State
Posts: 257
Default

The problem with the Superchips Cortex is you have no idea what the Quick Tune values are for anything, and even when you go online and update it, you have no idea what is being updated, I am guessing all the updates are for other vehicles / engines and not for our W body LS4s, so updating is pretty much useless for us.
Think anyone from Superchips reads this???
__________________

2007 Monte Carlo SS White with Red Pace Car checkered flag graphics, Red SS inserts and Taz graphics.
3" Hogan catted downpipe, 3" electric exhaust cutout, cortex tuned, custom cai w/aluminum box, relocated iat sensor, custom made 1.5" throttle body spacer, wrapped cross pipe, rotated engine mount, Pace Car side graphics, really good looking driver, upgrade speakers and 6 cd changer.

Last edited by Tappeter; 03-28-2010 at 09:57 PM.. Reason: misspell
Tappeter is offline   Reply With Quote
Old 03-29-2010, 03:24 AM   #13
TECH Fanatic
 
Trader Rating: 3
Join Date: Feb 2009
Location: Highland, MI
Posts: 1,287
Default

I'm wondering how much that 93 octane tune advances the timing........the factory timing is already very aggressive compared to any other LS tune I've seen.
__________________
1999 TA, 98mm fast toys, 85mm MAF, 11.1:1, CNC 243, EPS custom cam, LS6 intake, 1 3/4", stock catback with flowmaster 80, UD pulley, 4L80E, Precision 4K, HPT, 2.73 gears, billet diff cover, nitto NT's

2000 GTP 13.2@104 on street tires, retired.
JDMC5 is offline   Reply With Quote
Old 03-29-2010, 06:18 AM   #14
Launching!
 
Tappeter's Avatar
 
Trader Rating: 2
Join Date: Mar 2009
Location: Central NY State
Posts: 257
Default

I guess we'll never know what the Superchips 93 octane tune will be, they apparently have no intention of following through and doing it like they said.
__________________

2007 Monte Carlo SS White with Red Pace Car checkered flag graphics, Red SS inserts and Taz graphics.
3" Hogan catted downpipe, 3" electric exhaust cutout, cortex tuned, custom cai w/aluminum box, relocated iat sensor, custom made 1.5" throttle body spacer, wrapped cross pipe, rotated engine mount, Pace Car side graphics, really good looking driver, upgrade speakers and 6 cd changer.
Tappeter is offline   Reply With Quote
Old 03-29-2010, 10:20 AM   #15
Staging Lane
 
Trader Rating: 2
Join Date: Oct 2009
Posts: 52
Default

If your front end shutters on takeoff, it may just be a motor mount issue. How many miles on the car? I am at 60,000 on my 07 and I can tell the mounts are ready to be replaced. If not, I might be up for a new tranny too
07SSport is offline   Reply With Quote
Old 03-29-2010, 12:00 PM   #16
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

I have no shutters on mine, I only have 15k miles though..I'm expecting the trans to fail soon

I hope the programing does not void the warranty. Anyone ever had any probs?
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-29-2010, 10:05 PM   #17
Launching!
 
Tappeter's Avatar
 
Trader Rating: 2
Join Date: Mar 2009
Location: Central NY State
Posts: 257
Default

It doesn't shutter on take off, it'll spin the tires just fine if I let it, but at the first shift it will shutter hard, but only under wide open throttle/full acceleration, as if the tires are skipping.
__________________

2007 Monte Carlo SS White with Red Pace Car checkered flag graphics, Red SS inserts and Taz graphics.
3" Hogan catted downpipe, 3" electric exhaust cutout, cortex tuned, custom cai w/aluminum box, relocated iat sensor, custom made 1.5" throttle body spacer, wrapped cross pipe, rotated engine mount, Pace Car side graphics, really good looking driver, upgrade speakers and 6 cd changer.
Tappeter is offline   Reply With Quote
Old 03-31-2010, 10:17 AM   #18
On The Tree
 
havelegs's Avatar
 
Trader Rating: 0
Join Date: Mar 2010
Location: Fort Lauderdale
Posts: 181
Default

I noticed a shutter between first and second gear shifts, is my trans about to go bad?!
__________________
08 Impala SS | K&N Intake | Hogan DP with cutout | Superchips Cortex
havelegs is offline   Reply With Quote
Old 03-31-2010, 08:22 PM   #19
TECH Fanatic
 
Trader Rating: 3
Join Date: Feb 2009
Location: Highland, MI
Posts: 1,287
Default

I might, it might not. Did you read my post above?
__________________
1999 TA, 98mm fast toys, 85mm MAF, 11.1:1, CNC 243, EPS custom cam, LS6 intake, 1 3/4", stock catback with flowmaster 80, UD pulley, 4L80E, Precision 4K, HPT, 2.73 gears, billet diff cover, nitto NT's

2000 GTP 13.2@104 on street tires, retired.
JDMC5 is offline   Reply With Quote
Old 03-31-2010, 10:15 PM   #20
12 Second Club
 
Rossko85's Avatar
 
Trader Rating: 11
Join Date: Feb 2009
Location: Plainfield, IN
Posts: 570
Send a message via Yahoo to Rossko85
Default

OKAY...blowing whistle as the ref here LOL....

What you guys are feeling is not related to line pressure, nor can it be compinsated for with a higher percentage value of the line pressure....

You guys are feeling the good Ol 4T65E clutch slippage shutter!!!! BAD NEWS....shutter=friction of the clutch packs getting chewed together....These trannys are just not made for these cars.....

Shift kit will help the firmness of the shifts and tranny cooler will help those fluid temps and aid in clutch salvage; as a large amount of pressure in the accumulators will aid too but, only slow the process off the tranny going bye bye....

sorry to bear the bad news guys....thats the nature of this beautiful beast lol
__________________

*World's First E85-Rear Mount Turbo LS4-Grand Prix GXP*HPT-Rear Mount PTE 6765 billet turbo .81 A/R-FMIC-Walbro 255-Rewire-KB Boost A Pump-PAC 1215 springs-Intense 5/16, 7.4pushrods-NGK BR7EFS's-160*tstat-TEP racing tranny: Dual tranny coolers-PI 3300 Stall-300M input shaft-293single race gear set-7/8 racing chain-zpak 12 clutch pak 3rd gear-alum. finned tranny pan-speck engineered zzp tubular control arms.
Rossko85 is offline   Reply With Quote
Old 03-31-2010, 10:15 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
08, 2950, 91, 93, cavalier, cortex, hptuners, impala, ls1tech, monte, motor, mount, octane, options, shutter, ss, superchips, tune, tuner


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 11:56 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details