Why no C5 throttle controller/booster?
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
Yeah the C5 sucks in this way. The lazy pedal curve and slow throttle blade response can't really be fixed. I guess if you really wanted to fix it you'd have to change the TAC controller software as well as the ECU tune which can't be done as far as I know. If you don't understand what the complaint is, just go back to waxing your garage queen.
Safety Car
Joined: May 2015
Posts: 3,680
Likes: 1,040
Yeah the C5 sucks in this way. The lazy pedal curve and slow throttle blade response can't really be fixed. I guess if you really wanted to fix it you'd have to change the TAC controller software as well as the ECU tune which can't be done as far as I know. If you don't understand what the complaint is, just go back to waxing your garage queen.
Instructor
Joined: Jan 2022
Posts: 154
Likes: 99
From: Dallas
I both felt the need for a pedal commander in my 2015 Ram 1500 and felt it made a huge differences in responsiveness. In my C5Z, I feel like the throttle response is very fast and linear. I can't imagine any throttle curve changes doing anything but making the car hard to control. Maybe this is only relevant for base C5, or automatic cars?
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
Somebody Pass The Dutchie' On The Left Hand Side
I should preface this by saying C6 Z06 can run a booster, so can a C7.
Not to step on anyone's toes I get it some guys go high gears and cams that can get very touchy BUT; In a normal setup. Base/Z06 C5 Yes you can adjust the amount (separately) % of throttle from and also how quickly it steps in and feathers back to factory amounts.
EFIlive, good ol' HPtuner Holley Predator are capable of doing this. It's not magic or voodoo. The LS1 throttle activation from down low isn't a fast as it could be. Youtube a C6 with one to get the idea.
Not to step on anyone's toes I get it some guys go high gears and cams that can get very touchy BUT; In a normal setup. Base/Z06 C5 Yes you can adjust the amount (separately) % of throttle from and also how quickly it steps in and feathers back to factory amounts.
EFIlive, good ol' HPtuner Holley Predator are capable of doing this. It's not magic or voodoo. The LS1 throttle activation from down low isn't a fast as it could be. Youtube a C6 with one to get the idea.
Last edited by Hary Gahtoe; May 13, 2022 at 06:38 PM.
Safety Car
Joined: Nov 2007
Posts: 3,882
Likes: 2,934
From: N.E. Suburb MN
In the 15 years and 80,000 miles I've put on it I can say no it has less lag than. The C6 & C7 and had the same response as my C8. Maybe your car is a piece of ****? Maybe you have 2.73s which would require a great deal of throttle than 3.15 etc. Call BS all you want.
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Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
And C4’s were prior to that. Point is all Corvettes, Camaro’s, GTO’s Escalades etc. Can benefit from DBW throttle tuning. In 06(?)the ECU changed, you get main ECU mapping which controls the fuel and spark. So yeah, C5’s don’t get a throttle control you just plug inline because the system isn’t that smart. But it can be re mapped as mentioned above
The situation here is some choose not to believe or fail to understand what it can actually do or how it really works overall
What’s next? Ignition timing?
Enjoy your ride your way regardless of biased based arguments against it from naysayers
Isn’t that why and how people are drawn to Corvettes to begin with?
The situation here is some choose not to believe or fail to understand what it can actually do or how it really works overall
What’s next? Ignition timing?
Enjoy your ride your way regardless of biased based arguments against it from naysayers
Isn’t that why and how people are drawn to Corvettes to begin with?
Safety Car
Joined: Nov 2007
Posts: 3,882
Likes: 2,934
From: N.E. Suburb MN
Always a pleasure to hear your singular point of view Walter
So I guess all these guys are FOS too then?
https://www.youtube.com/watch?v=YLGMXg-6WBc
https://www.youtube.com/watch?v=y9WWndqW2tA&t=1s
https://youtu.be/cHNYcW1eyHI
So I guess all these guys are FOS too then?
https://www.youtube.com/watch?v=YLGMXg-6WBc
https://www.youtube.com/watch?v=y9WWndqW2tA&t=1s
https://youtu.be/cHNYcW1eyHI
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
If you check any of the Companies building throttle controls and thousands of users you are in denial about how they work and more to the core, it exists.
Post this on HPtuner
The only part you remotely got was C5 ECU’s can’t use aftermarket plugin DBW controls. They can be adjusted similarly thru OBD though. It’s just an older, less complicated type of ECU
Post this on HPtuner
The only part you remotely got was C5 ECU’s can’t use aftermarket plugin DBW controls. They can be adjusted similarly thru OBD though. It’s just an older, less complicated type of ECU
Last edited by Hary Gahtoe; May 13, 2022 at 06:36 PM.
Safety Car
Joined: May 2015
Posts: 3,680
Likes: 1,040
Hahaha... The little lady, (no offense) drives a C30 Valvo T5, her pride and joy... When ever I barrow her car and drive it... the first thing I notice is the "Jump-off-the line"... a jump sorta feel... Woah! Easy with the throttle mashing.. This throttle response ain't my C5! 😎
Safety Car
Joined: Nov 2007
Posts: 3,882
Likes: 2,934
From: N.E. Suburb MN
As noted (?) a C8, C7 &C6 are not C5’s. No, absolutely Walter.
Deflecting from the topic of a C5 having throttle lag to later generation cars to gears in my car? Walter.
If you check any of the Companies building throttle controls and thousands of users you are in denial about how they work and more to the core, it exists.
Post this on HPtuner if you feel your right.
The only part you remotely got was C5 ECU’s can’t use aftermarket plugin DBW controls. They can be adjusted similarly thru OBD though. It’s just an older, less complicated type of ECU
Good Luck my friend.
Deflecting from the topic of a C5 having throttle lag to later generation cars to gears in my car? Walter.
If you check any of the Companies building throttle controls and thousands of users you are in denial about how they work and more to the core, it exists.
Post this on HPtuner if you feel your right.
The only part you remotely got was C5 ECU’s can’t use aftermarket plugin DBW controls. They can be adjusted similarly thru OBD though. It’s just an older, less complicated type of ECU
Good Luck my friend.
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
You don't understand. It's not mashing more throttle It's speed. Throttle lag is built into every factory built car. Including C8’s. Read about the difference
Last edited by Hary Gahtoe; May 13, 2022 at 06:34 PM.
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OK, let's please dial back the criticism of other members - commenting on the ideas/facts is one thing, but attacking each other is not appropriate. Thank you and now back to the show.
Le Mans Master
Joined: Aug 2009
Posts: 5,197
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From: ALL governments are legalized mobsters, so doesn't matter where I live :(
I installed it on my C7 and haven't noticed any additional gas consumption. I have it set to what I would call intermediate.
Lol, basically started off as a good discussion for around the use of a throttle controller to a C5, to how a throttle controller works and if it's "snake oil." Hary know's where it's at! They absolutely work, and they are fantastic! When I had my C5 it was done up decently, but the responsiveness of the pedal is nowhere near how my C7 feels. I'm not saying it was horrible in the C5, but not as responsive as the C7 with the throttle controller. The vid's posted above are correct in their assessment.
Lol, basically started off as a good discussion for around the use of a throttle controller to a C5, to how a throttle controller works and if it's "snake oil." Hary know's where it's at! They absolutely work, and they are fantastic! When I had my C5 it was done up decently, but the responsiveness of the pedal is nowhere near how my C7 feels. I'm not saying it was horrible in the C5, but not as responsive as the C7 with the throttle controller. The vid's posted above are correct in their assessment.
Safety Car
Joined: Aug 2011
Posts: 4,439
Likes: 406
From: Portland OR
Interesting discussion.
Remember, the C5 was GM's first drive by wire throttle. Same parts used 97-04, but there were a few different operating systems over that span.
Through 2000, the throttle table was a single row. Tables populated the same for a stick or auto. There were two tables, Normal and Alternate.
Not sure when the Alternate table is used, I assume nowhere as it is populated with 0's.
2001 on had a bigger table. Also Normal and Alternate. In these cases, the Alternate table has slower response. Again, not sure what brings that into play. Some have speculated for Competitive Driving Mode?
So here is where it gets interesting. I'm using 02 Auto vs Manual for comparison. HPT lets you easily compare tables.
The Auto trans cars appear to have a faster throttle. Since the parts are the same, I would think a guy could copy the Auto car table into a manual car and not bust anything.
Gather up a stack of ECU's and give it a whirl. :-)
My car is a 2000. Auto. 90mm LS2 TB.
The bigger TB gives better response by default. Same opening rate, but you are opening a bigger blade.
Mine is almost too sensitive. Although stiffer springs in the pedal would help.
Ron
Remember, the C5 was GM's first drive by wire throttle. Same parts used 97-04, but there were a few different operating systems over that span.
Through 2000, the throttle table was a single row. Tables populated the same for a stick or auto. There were two tables, Normal and Alternate.
Not sure when the Alternate table is used, I assume nowhere as it is populated with 0's.
2001 on had a bigger table. Also Normal and Alternate. In these cases, the Alternate table has slower response. Again, not sure what brings that into play. Some have speculated for Competitive Driving Mode?
So here is where it gets interesting. I'm using 02 Auto vs Manual for comparison. HPT lets you easily compare tables.
The Auto trans cars appear to have a faster throttle. Since the parts are the same, I would think a guy could copy the Auto car table into a manual car and not bust anything.
Gather up a stack of ECU's and give it a whirl. :-)
My car is a 2000. Auto. 90mm LS2 TB.
The bigger TB gives better response by default. Same opening rate, but you are opening a bigger blade.
Mine is almost too sensitive. Although stiffer springs in the pedal would help.
Ron
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
Hi Ron
Did you have any trouble with a TB wiring adapter? Ive read some has issues with a signal not registering with the C5 ECU
Did you do the coolant line bypass as well?
Also did the car idle OK right after or did it want a calibration tune right away?
I apologize for so many questions. I’m saving for manifold/TB this fall and trust your direction
Thanks
Did you have any trouble with a TB wiring adapter? Ive read some has issues with a signal not registering with the C5 ECU
Did you do the coolant line bypass as well?
Also did the car idle OK right after or did it want a calibration tune right away?
I apologize for so many questions. I’m saving for manifold/TB this fall and trust your direction
Thanks
Safety Car
Joined: Aug 2011
Posts: 4,439
Likes: 406
From: Portland OR
Hi Harry,
I haven’t had any issues with the adapter harness.
I hotrodded the whole car all at once the winter I bought it. Then learned the tuning. With the help of forum member CTD.
So I can’t answer that question about the TB swap. 😊
I was kind of tuning everything. That was 2012.
Thinking back, it’s a miracle it started!
Ron
I haven’t had any issues with the adapter harness.
I hotrodded the whole car all at once the winter I bought it. Then learned the tuning. With the help of forum member CTD.
So I can’t answer that question about the TB swap. 😊
I was kind of tuning everything. That was 2012.
Thinking back, it’s a miracle it started!
Ron