DBW Throttle Speed Increase
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
DBW Throttle Speed Increase
Looking to increase the speed (make it rev quicker, shift faster) like the use of Pedal Commander; using online- download / handheld / fixed incar device, type-deal.
Not interested at All in HPT but short of that I have laptop and can access my ECU for online downloads or the something I can attach to the car to adjust the lack of speed it reacts. Not interested at this point in anything other than maybe a Predator to re calculate the factory settings or a COW tune that would work on a base setup.
Thanks for replies
Hary
Not interested at All in HPT but short of that I have laptop and can access my ECU for online downloads or the something I can attach to the car to adjust the lack of speed it reacts. Not interested at this point in anything other than maybe a Predator to re calculate the factory settings or a COW tune that would work on a base setup.
Thanks for replies
Hary
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
Maybe a more accurate ask would be, what sources are there to making the DBW gas pedal inputs happen faster?
As in cutting the lag time created by the DBW. The typical; stab - pause - rev
The electronic signal happens at a slower rate especially when you want a fast reaction from the gas pedal to servo motor on the throttle body
As in cutting the lag time created by the DBW. The typical; stab - pause - rev
The electronic signal happens at a slower rate especially when you want a fast reaction from the gas pedal to servo motor on the throttle body
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
When I used EFILive to tune my car I was able to change the TB decay to a livable time....almost instant throttle control. HPT might also do it but it does take a tuning software. If you have someone do it make sure they do not set it to ) decay as it is unlivable to drive with it like that.
Melting Slicks
Joined: Jun 2005
Posts: 3,088
Likes: 61
From: NY- 2013 Corvette Challenge Champion-2013 Index Combo Champion 2015 CC/MM Champion
St. Jude Donor '07
I know you can do it with efilive,but if you go to far you can brick the pcm,I did the upper part of the table and had no problems, and only adjusted the the lower part alittle bit
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
Appreciate the replies. Looking into EFIlive and Corvettes of Westchester Tuning. Some sort of quicker but progressive DBW throttle action would make the car feel more responsive for sure
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Other years have different values based on Max TQ percentage
On those I set all of them to 100 % only down to like 20%
You are correct some vehicles are more sensitive on making adjustments mostly on how LOW you go at 100%
I have never had an ECM Brick from these adjustments however more frightening I have had the gas pedal get stuck at 2000-3000 RPM's when coming to a stop !!
Drifting
Joined: Nov 2017
Posts: 1,392
Likes: 303
Has anyone made a data log showing pedal position and throttle blade position while you cycle them from 0 to 100% and stomp a couple times?
I'm really curious as to whether the delay that people perceive is actually in the throttle blade angle or just in the engine's response to throttle blade change changes.
I'm really curious as to whether the delay that people perceive is actually in the throttle blade angle or just in the engine's response to throttle blade change changes.
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Melting Slicks
Joined: Jun 2005
Posts: 3,088
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From: NY- 2013 Corvette Challenge Champion-2013 Index Combo Champion 2015 CC/MM Champion
St. Jude Donor '07
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
Has anyone made a data log showing pedal position and throttle blade position while you cycle them from 0 to 100% and stomp a couple times?
I'm really curious as to whether the delay that people perceive is actually in the throttle blade angle or just in the engine's response to throttle blade change changes.
I'm really curious as to whether the delay that people perceive is actually in the throttle blade angle or just in the engine's response to throttle blade change changes.
I also think you are correct about the engines ability to respond to the blade opening.
I have a 90mm LS2 throttle body on my C5, I actually think it’s too sensitive. I didn’t muck with the TPS tables at all.
Advanced
Joined: Feb 2015
Posts: 82
Likes: 38
Has anyone made a data log showing pedal position and throttle blade position while you cycle them from 0 to 100% and stomp a couple times?
I'm really curious as to whether the delay that people perceive is actually in the throttle blade angle or just in the engine's response to throttle blade change changes.
I'm really curious as to whether the delay that people perceive is actually in the throttle blade angle or just in the engine's response to throttle blade change changes.
Advanced
Joined: Feb 2015
Posts: 82
Likes: 38
Unless you're talking about the airflow. It's under the dynamic airflow settings. Sorry I don't have a comp with HPT nearby so I don't remember the exact location but you can change parameters to make it lean more on MAP at lower RPM
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,461
Likes: 378
From: Bellinum Wa
I’ve logged pedal vs TPS with hpt and there is a very slight delay. 0.1 seconds iirc. And that’s if you believe hpt scanner accuracy.
I also think you are correct about the engines ability to respond to the blade opening.
I have a 90mm LS2 throttle body on my C5, I actually think it’s too sensitive. I didn’t muck with the TPS tables at all.
I also think you are correct about the engines ability to respond to the blade opening.
I have a 90mm LS2 throttle body on my C5, I actually think it’s too sensitive. I didn’t muck with the TPS tables at all.
Also did you use an LS2 manifold or an adapter on the LS1 manifold?
Thanks for the replies
Safety Car
Joined: Aug 2011
Posts: 4,449
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From: Portland OR
My intake is a Fast 102 so it bolts right up.