Final wrap-up on my transmission swap - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 01-17-2007, 02:16 PM   #21
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jun 2004
Location: Glendale, AZ
Posts: 3,459
Thanks: 0
Thanked 1 Time in 1 Post
big_news_1 is on a distinguished road
Default

Here'* an excerpt from a PM I sent to Thomas a few minutes ago. This gives you an idea of what happens when a modified transmission is run on a PCM programmed for a stock transmission:

Quote:
Originally Posted by big_news_1
WOT shift points are way off. First gear runs up to 6200 and bounces off the rev limiter if I don't lift. I'm sure the part-throttle shifts could use some tweaking as well.

TC lockup holds strong, and does not jump in and out like we thought it might. However, if I drive on the freeway for very long at ~70mph I lose TC lockup completely. I thought this was due to low fluid, but have since diagnosed it to be a PCM issue. If I stop the car and shut it off I immediately regain lockup. In fact, last night the Check Engine light came on after losing lockup on the freeway. I can drive all day long on city streets with the TC locked in 3rd gear, but the PCM doesn't like something about the lockup at freeway speeds.

I need to look at the engine tune, because the Intense tune was optimized for my old cam timing. There'* also a weird issue with 97'* involved with torque management. Depending on what kind of torque the PCM is seeing, it will automatically register false knock counts and degrees of KR in order to limit the torque going through the transaxle. I'm wondering if the PCM is doing this at times, because this new converter and gears is probably confusing it pretty bad.
Also, the speedometer is obviously a little off at this point, though not as much as I expected. Maybe 5mph? All these issues should eventually be addressed by a tune, though
big_news_1 is offline   Reply With Quote
Old 01-17-2007, 10:08 PM   #22
Senior Member
Certified GM nut
 
Join Date: Dec 2002
Location: plattsburgh NY
Posts: 2,037
Thanks: 0
Thanked 0 Times in 0 Posts
TJ'sblackbonne is on a distinguished road
Default

How does the top end feel with those gears? Looks like someone is going to take away my spot at the top of n/a times for awhile. lol, good luck with that car bud, looks like we are going to have some fun this year showing the l36 power
TJ'sblackbonne is offline   Reply With Quote
Old 01-17-2007, 11:01 PM   #23
Member
Posts like a V-Tak
 
Join Date: Jul 2005
Location: Chandler AZ
Posts: 99
Thanks: 0
Thanked 0 Times in 0 Posts
PDXGTP is on a distinguished road
Default

I don't know if you Bonneville members make a year end video or scrap book but these are some pictures I took during the fun & games.
They are full size pictures so you should have plenty of room for photo chopping cropping etc...

Ben working on his car.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01537.JPG
Ben on the left, Bob on the floor and my friend John who came and helped us with the project.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01538.JPG
Just a picture from outside the garage.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01539.JPG
Another/different picture from outside the garage.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01540.JPG
Steady as she goes.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01541.JPG
Finally got it out.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01542.JPG
Bob is an awesome worker, I'm proud to have him as a friend.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01543.JPG
Same pic, different view.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01544.JPG
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01545.JPG
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01546.JPG
Ben hitting the JWB pretty hard.. Johnny Walker Black.. :P
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01548.JPG
There'* the Bonneville sticker on the trans.
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01549.JPG
http://www.azclubgp.com/pdxgtp/PDXGT...e/DSC01550.JPG

Have fun.
PDXGTP is offline   Reply With Quote
Old 01-25-2007, 01:35 AM   #24
Member
Posts like a V-Tak
 
Join Date: Jul 2005
Location: Chandler AZ
Posts: 99
Thanks: 0
Thanked 0 Times in 0 Posts
PDXGTP is on a distinguished road
Default

Ben, good news. I got my email from HPtuners,

The typical procedure is to send the email to the customer the day the interface ships out.
I paid for next day air so I should have it tomorrow, Thursday 1/25/2007.

I'll let you know but it looks like we can tweak your car this weekend.

Later.

BTW, Now I can also tune Mr. EchoSSEI'* car, and my Vette, and basically anything OBDII GM.... woohoo...
PDXGTP is offline   Reply With Quote
Old 01-25-2007, 10:56 AM   #25
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Knowing I'm a little late, great job guys.

I think I knew most of this via my live updates, it'* nice to see it on the club though. BTW.. one thing I don't see mentioned here is Thomas saying anything about rusty crusty bolts...
BillBoost37 is offline   Reply With Quote
Old 01-25-2007, 11:18 AM   #26
Senior Member
True Car Nut
 
Join Date: May 2005
Location: _Phoenix, AZ_ _WCBF '05, '06, '07 Survivor_ ____NEBF '07 Remnant___
Posts: 3,448
Thanks: 0
Thanked 0 Times in 0 Posts
Echo SSEI is on a distinguished road
Default

Quote:
Originally Posted by BillBoost37
Knowing I'm a little late, great job guys.

I think I knew most of this via my live updates, it'* nice to see it on the club though. BTW.. one thing I don't see mentioned here is Thomas saying anything about rusty crusty bolts...
Thomas was obviously the smartest one of us....since he managed to be conspicuoiusly "occupied" or MIA whenever there was a rusty, crusty bolt that needed to be persuaded out of a hole.
Echo SSEI is offline   Reply With Quote
Old 01-25-2007, 01:01 PM   #27
Member
Posts like a V-Tak
 
Join Date: Jul 2005
Location: Chandler AZ
Posts: 99
Thanks: 0
Thanked 0 Times in 0 Posts
PDXGTP is on a distinguished road
Default

Quote:
Originally Posted by Echo SSEI
Quote:
Originally Posted by BillBoost37
Knowing I'm a little late, great job guys.

I think I knew most of this via my live updates, it'* nice to see it on the club though. BTW.. one thing I don't see mentioned here is Thomas saying anything about rusty crusty bolts...
Thomas was obviously the smartest one of us....since he managed to be conspicuoiusly "occupied" or MIA whenever there was a rusty, crusty bolt that needed to be persuaded out of a hole.
I must have you snookered Bob, or you where so busy busting on the rusty crusties that you didn't notice me dazed off into space.

Hey Bob, I wanted to mention how much I appreciate your help last weekend, my tool box is so clean, I have been good too. I have been returning stuff when I'm done with it.

Ben and I painted the rotor hats and my front brake calipers on the Vette, it turned out great. Thanks Ben.
PDXGTP is offline   Reply With Quote
Old 01-25-2007, 07:11 PM   #28
Senior Member
True Car Nut
 
Join Date: May 2005
Location: _Phoenix, AZ_ _WCBF '05, '06, '07 Survivor_ ____NEBF '07 Remnant___
Posts: 3,448
Thanks: 0
Thanked 0 Times in 0 Posts
Echo SSEI is on a distinguished road
Default

Quote:
Originally Posted by PDXGTP
BTW, Now I can also tune Mr. EchoSSEI'* car, and my Vette, and basically anything OBDII GM.... woohoo...


Quote:
Originally Posted by PDXGTP
Hey Bob, I wanted to mention how much I appreciate your help last weekend, my tool box is so clean, I have been good too. I have been returning stuff when I'm done with it.

Ben and I painted the rotor hats and my front brake calipers on the Vette, it turned out great. Thanks Ben.
We still have some more organizing to do, but working out of that awesome toolchest is going to make modding so much more fun .

I'll need to see the vette rotors soon. So when are you and I and Ben going to hit up Firebird?
Echo SSEI is offline   Reply With Quote
Old 01-25-2007, 07:39 PM   #29
Member
Posts like a V-Tak
 
Join Date: Jul 2005
Location: Chandler AZ
Posts: 99
Thanks: 0
Thanked 0 Times in 0 Posts
PDXGTP is on a distinguished road
Default

Quote:
Originally Posted by Echo SSEI
. So when are you and I and Ben going to hit up Firebird?
After we get him tuned.
PDXGTP is offline   Reply With Quote
Old 01-25-2007, 08:06 PM   #30
Senior Member
True Car Nut
 
Join Date: Jan 2005
Posts: 3,295
Thanks: 0
Thanked 0 Times in 0 Posts
MyLittleBlackBird is on a distinguished road
Default

I hope he gets tuned soon! I want results!
MyLittleBlackBird is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Header Wrap and Warranties Xac Xado Performance, Brainstorming & Tuning 6 07-15-2005 10:07 AM
Header Wrap Kennginn Performance, Brainstorming & Tuning 25 06-12-2005 11:26 PM
Header Wrap CmptrNerd Performance, Brainstorming & Tuning 6 01-17-2005 04:56 PM
Wrap your melons around this one..... Damemorder Performance, Brainstorming & Tuning 2 07-20-2004 05:44 AM
Weekend wrap-up. Egads. willwren 1992-1999 20 09-30-2002 11:53 PM


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 Off
Refbacks are Off



All times are GMT -4. The time now is 02:44 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.