LAPD LS1Edit Tuning - A Revalation
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 3,241
Likes: 1
From: Torrance Ca.
LAPD LS1Edit Tuning - A Revalation
I had my car tuned by LAPD yesterday and had quite a revalation. The "stock" program in my PCM was all FUBAR. A lot of weird values were present in the MAF and other PCM tables. The tuner ended up having to compare values to the current 2003 "stock" program and change a number of them to achieve a true baseline. Since I have never driven another stock C5, the performance degradation was never apparant to me. I've also never had the car tuned before so the corrupt PCM program had to have been installed on the production line.
After sorting it all out and retuning the car, I found real before/after SOTP performance gains with respect to initial throttle response and acceleration throughout the RPM band. The car just kept on pulling strong up to 140 MPH (where we ran out of road). While It's impossible to say how much of this gain was due to getting rid of the "frankenstein" PCM program versus the retuning effort, IMO the money was well spent in discovering the corrupt PCM program and setting the new PCM values to achieve optimal performance regardless of before/after dyno numbers. Since I already have a baseline dyno run I may take it back to R&D Dyno to get "after" dyno results
LAPD's tuner also eliminated the CAGS via programming, reseting the PCM so CAGS is activated at 350 MPH!
After sorting it all out and retuning the car, I found real before/after SOTP performance gains with respect to initial throttle response and acceleration throughout the RPM band. The car just kept on pulling strong up to 140 MPH (where we ran out of road). While It's impossible to say how much of this gain was due to getting rid of the "frankenstein" PCM program versus the retuning effort, IMO the money was well spent in discovering the corrupt PCM program and setting the new PCM values to achieve optimal performance regardless of before/after dyno numbers. Since I already have a baseline dyno run I may take it back to R&D Dyno to get "after" dyno results
LAPD's tuner also eliminated the CAGS via programming, reseting the PCM so CAGS is activated at 350 MPH!
Safety Car
Joined: Apr 2002
Posts: 4,653
Likes: 6
From: North Royalton, OH
St. Jude Donor '06-'07
Re: LAPD LS1Edit Tuning - A Revalation (joemoia)
Several of us got together and bought the LS1Edit program through a local shop, and while my '99 tuned really well and quickly, one of the others (03Ragtop) had quite a time with his '03 programming - like it was trying to "fight" the LS1Edit tuning. Much more radical changes had to be made to the computer on his car to make a difference in the performance when compared to mine. I wonder what really changed inside the computer between the years?
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 3,241
Likes: 1
From: Torrance Ca.
Re: LAPD LS1Edit Tuning - A Revalation (BSiegPaint)
Just be careful not to try to shift into second when you hit 350mph :rofl: Really odd about the bogus program from the factory.
Several of us got together and bought the LS1Edit program through a local shop, and while my '99 tuned really well and quickly, one of the others (03Ragtop) had quite a time with his '03 programming - like it was trying to "fight" the LS1Edit tuning. Much more radical changes had to be made to the computer on his car to make a difference in the performance when compared to mine. I wonder what really changed inside the computer between the years?
Drifting
Joined: Apr 2001
Posts: 1,779
Likes: 6
From: LOS ANGELES CA.
Re: LAPD LS1Edit Tuning - A Revalation (joemoia)
Glad it worked out for you.My car is really running better than ever.Money well spent as my gas mileage improved also.My car is much more fun to drive since I had LAPD tune my car.Let us know the results of the dyno test.I am really curious.Have fun! :chevy :chevy :flag :chevy :chevy
Race Director
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Re: LAPD LS1Edit Tuning - A Revalation (joemoia)
I had my car tuned by LAPD yesterday and had quite a revalation. The "stock" program in my PCM was all FUBAR. A lot of weird values were present in the MAF and other PCM tables. The tuner ended up having to compare values to the current 2003 "stock" program and change a number of them to achieve a true baseline. Since I have never driven another stock C5, the performance degradation was never apparant to me. I've also never had the car tuned before so the corrupt PCM program had to have been installed on the production line.
After sorting it all out and retuning the car, I found real before/after SOTP performance gains with respect to initial throttle response and acceleration throughout the RPM band. The car just kept on pulling strong up to 140 MPH (where we ran out of road). While It's impossible to say how much of this gain was due to getting rid of the "frankenstein" PCM program versus the retuning effort, IMO the money was well spent in discovering the corrupt PCM program and setting the new PCM values to achieve optimal performance regardless of before/after dyno numbers. Since I already have a baseline dyno run I may take it back to R&D Dyno to get "after" dyno results
LAPD's tuner also eliminated the CAGS via programming, reseting the PCM so CAGS is activated at 350 MPH!
After sorting it all out and retuning the car, I found real before/after SOTP performance gains with respect to initial throttle response and acceleration throughout the RPM band. The car just kept on pulling strong up to 140 MPH (where we ran out of road). While It's impossible to say how much of this gain was due to getting rid of the "frankenstein" PCM program versus the retuning effort, IMO the money was well spent in discovering the corrupt PCM program and setting the new PCM values to achieve optimal performance regardless of before/after dyno numbers. Since I already have a baseline dyno run I may take it back to R&D Dyno to get "after" dyno results
LAPD's tuner also eliminated the CAGS via programming, reseting the PCM so CAGS is activated at 350 MPH!
JB
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 3,241
Likes: 1
From: Torrance Ca.
Re: LAPD LS1Edit Tuning - A Revalation (jbsblownc5)
Let us know the results of the dyno test.I am really curious.
LAPD's Tuning Guy is :cool: :yesnod: JB
Supporting Vendor
Joined: Feb 2000
Posts: 7,302
Likes: 1
From: Los Angeles, CA
St. Jude Donor '03-'04-'05-'06
Re: LAPD LS1Edit Tuning - A Revalation (joemoia)
joemoia,
We are very happy to hear that you are satisfied with the way your car runs.
Most stock PCM programs from the factory have the same problem you experienced, but most C5/Z06 owners are used to the way it runs and they can't really tell that they had a programming issue until their car is LAPD tuned.
Tuning makes all the difference!!! :yesnod:
Have fun and enjoy!
Thanks again!
Shawn
We are very happy to hear that you are satisfied with the way your car runs.
Most stock PCM programs from the factory have the same problem you experienced, but most C5/Z06 owners are used to the way it runs and they can't really tell that they had a programming issue until their car is LAPD tuned.
Tuning makes all the difference!!! :yesnod:
Have fun and enjoy!
Thanks again!
Shawn
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Melting Slicks
Joined: Apr 2002
Posts: 2,683
Likes: 0
Re: LAPD LS1Edit Tuning - A Revalation (L.A.P.D.)
Where can you purchase LS1-edit? How much does the program cost? Just curious, the tuning is probably WAYYY above my head, but I wouldn't mind looking into it in the future.
Love these computer thangs!!! :jester
Love these computer thangs!!! :jester
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 3,241
Likes: 1
From: Torrance Ca.
Re: LAPD LS1Edit Tuning - A Revalation (dads01dream)
http://WWW.carputing.com
IMO using LS1edit for tuning is NOT a DIY for amateurs. You can download the LS1edit users guide from carputing's site to get a flavor for what you'd be getting into.
IMO using LS1edit for tuning is NOT a DIY for amateurs. You can download the LS1edit users guide from carputing's site to get a flavor for what you'd be getting into.
