I noticed that a lot of your engine packages state that you use are using a cable operated throttle body.
What drives the decision to use DBW or cable? Availability of throttle body size for power considerations? User preference? Other?
Howdy !
Actually ... I need to change that in our new catalog ... because we offer both DBW-Drive by Wire and traditional cable operated throttle bodies. It is user preference (or needs). I find we sell about half cable operated & half DBW. Just depends on what the end user needs.
For the DBW throttle bodies we use:
* Stock GM LS3 92mm version for 625HP & lower
* Nick Williams 102mm version 700HP & up
For the Cable operated throttle bodies we use:
* Holley 90mm for for 625HP & lower
* Holley 95mm for for 675HP & lower
* Holley 105mm for for 700HP & up
For Greg's car, the electronic "no-lift" sequential shift controller needs a DBW throttle body to work correctly. On upshifts, the electronic "no-lift" sequential shift controller kills the power for a fraction of a second, to make the shift smooth. But the throttle stays wide open (as long as the driver has the throttle pedal wide open.) On downshifts, the electronic "no-lift" sequential shift controller needs to "blip" the throttle to make the downshift happen smoothly, so a DBW throttle body is needed.
If we had not ran the sequential shift transmission, we would have ran a cable operated throttle body.
Hope this insight helps.
__________________ Ron Sutton Race Technology
Last edited by Ron Sutton; 06-13-2018 at 05:29 PM.
The Following User Says Thank You to Ron Sutton For This Useful Post:
Saw this in Monkton Maryland while working, figured Greg was far enough into the project, and the billing cycle. That this sign was probably feeling applicable. LOL
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
Oh! Not "mini" this year. Well okie dokie then. 
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