TCC Lock / Unlock speed VS % tps
Thread Starter
Member
Joined: Sep 2000
Posts: 400
Likes: 2
From: Keller, Texas, USA
Car: Devastating Droptop
Engine: 355 Supercharged
Transmission: Auto 4L60, Built for 700hp
TCC Lock / Unlock speed VS % tps
My question is in the Unlock / Lock tables in 4th gear.
every time I'm in cruise at HWY speeds and the throttle is just slightly lifted lets say a map of 40KPA the TCC unlocks and relocks at a map of 45KPA
It's kinda of anoying going up and down very slight hills can it be set to stay locked until a lowers speed on decels.
------------------
Louis
Convertable
92 Z28 305tpi Auto
1/4 at 12.99 @ 109.07mph w/Paxton 10psi, Ram air mod,Water methanol inj.,52mm T/B,ASM Large tube runners, ported upper & lower intakes,AFPR,23# injectors,1.6 roller rockers,slp tri-y headers,3in. cat,3in. gale banks cat back system,3.42 gears,17x9 camaro SS wheels, 285x40x17 tires,and much more.
http://www.lbsz28blown.cz28.com
every time I'm in cruise at HWY speeds and the throttle is just slightly lifted lets say a map of 40KPA the TCC unlocks and relocks at a map of 45KPA
It's kinda of anoying going up and down very slight hills can it be set to stay locked until a lowers speed on decels.
------------------
Louis
Convertable
92 Z28 305tpi Auto
1/4 at 12.99 @ 109.07mph w/Paxton 10psi, Ram air mod,Water methanol inj.,52mm T/B,ASM Large tube runners, ported upper & lower intakes,AFPR,23# injectors,1.6 roller rockers,slp tri-y headers,3in. cat,3in. gale banks cat back system,3.42 gears,17x9 camaro SS wheels, 285x40x17 tires,and much more.
http://www.lbsz28blown.cz28.com
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 5
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Yes, you need to hit the Deceleration Fuel Cut Off settings for TCC, and there is a switch that tells the ECM whether the TCC will "unlock" under deceleration.
Stock, the eprom unlocks the TCC at "light" deceleration, to "freewheel and save gas". If you set the "switch" to just leave it locked, then this sensation will leave but your gas mileage may drop.
I am just starting to play with these settings myself to find a "happy medium" as I too find this quite annoying. Setting the "TCC Unlock Prevention Speed" to less than the stock 75 MPH will help; but you still have "things" in the DFCO that affects it.
I had sent TunerCat some of the "settings" that need to be defined in their $8D TDF and I think the latest version of the $8D has incorporated them. I don't use Tunercat's $8D TDF as I have a lot of other things that I am "playing with" and don't want to loose them if I go to TunerCat's latest version.
Stock, the eprom unlocks the TCC at "light" deceleration, to "freewheel and save gas". If you set the "switch" to just leave it locked, then this sensation will leave but your gas mileage may drop.
I am just starting to play with these settings myself to find a "happy medium" as I too find this quite annoying. Setting the "TCC Unlock Prevention Speed" to less than the stock 75 MPH will help; but you still have "things" in the DFCO that affects it.
I had sent TunerCat some of the "settings" that need to be defined in their $8D TDF and I think the latest version of the $8D has incorporated them. I don't use Tunercat's $8D TDF as I have a lot of other things that I am "playing with" and don't want to loose them if I go to TunerCat's latest version.
Thread Starter
Member
Joined: Sep 2000
Posts: 400
Likes: 2
From: Keller, Texas, USA
Car: Devastating Droptop
Engine: 355 Supercharged
Transmission: Auto 4L60, Built for 700hp
Glenn,
Thanks for the reply, I will contact tunercat and see what they have.
Thanks again,
You and everybody on this board have been a graet help.
Louis
------------------
Louis
Convertable
92 Z28 305tpi Auto
1/4 at 12.99 @ 109.07mph w/Paxton 10psi, Ram air mod,Water methanol inj.,52mm T/B,ASM Large tube runners, ported upper & lower intakes,AFPR,23# injectors,1.6 roller rockers,slp tri-y headers,3in. cat,3in. gale banks cat back system,3.42 gears,17x9 camaro SS wheels, 285x40x17 tires,and much more.
http://www.lbsz28blown.cz28.com
Thanks for the reply, I will contact tunercat and see what they have.
Thanks again,
You and everybody on this board have been a graet help.
Louis
------------------
Louis
Convertable
92 Z28 305tpi Auto
1/4 at 12.99 @ 109.07mph w/Paxton 10psi, Ram air mod,Water methanol inj.,52mm T/B,ASM Large tube runners, ported upper & lower intakes,AFPR,23# injectors,1.6 roller rockers,slp tri-y headers,3in. cat,3in. gale banks cat back system,3.42 gears,17x9 camaro SS wheels, 285x40x17 tires,and much more.
http://www.lbsz28blown.cz28.com
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