General Motors V8 Discussion Discussion relating to getting the most out of your LSx or other GM-based V8 Miata's engine

DBW vs cable throttle body

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Old Sep 24, 2021 | 06:39 PM
  #1  
VincentMiata's Avatar
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From: The Netherlands, Eindhoven
Default DBW vs cable throttle body

Hello all,

Since my turbo BP needs a rebuild again im thinking about going LS1 V8. Found a nice kit wich sells a complete kit including gearbox and ECU and wiring loom. But they sell both cable driven throttle bodie and Drive by wire throttle bodies engines.

I believe the cable driven one is found in a Camaro wich has about 315hp and the DBW is from the corvette and has about 350hp? Any downsides going DBW. Obviously need a corvette pedal and wiring. Also cruisecontrol is easy to wire up from what i found so far.

What is your preferred engine?

greetings,
Vincent
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Old Sep 25, 2021 | 09:06 AM
  #2  
djwarner's Avatar
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From: Central Florida
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The GM DBW OEM setup gets cruise control commands from the BCM which is not included with your kit. Trying to add a BCM adds all kinds of problems with anti theft systems, etc. However, there is an aftermarket substitute. I needed one to activate the shift paddles for my 6L50 transmission. Got the ABS and cruise control as a side benefit. Company is first rate and I highly recommend them.

OE Controls – The Tap-N-Cruise – DBW Cruise Control, Tap Shift, And More for 58x LS/LT engine swaps
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Old Nov 29, 2022 | 02:30 PM
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I know this is an old post but there is always the option of using the stock Miata cruise control system. Just need to attach a second throttle cable to the DBC throttle body. Also need to figure out a speed input if you are not using the factory speedometer. Stock instrument cluster uses a reed switch to send a 4 pulse/revolution signal to the Cruise Control Module.
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Old Feb 12, 2026 | 09:30 PM
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Tanro's Avatar
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I know you said you want to go cable throttle but, especially if you are going to install an aggresive cam, you should consider DBW. Its a lot better to tune on a cam than a cable throttle with ISC. I used to be a DBW hater, but after getting my hands into my first DBW tune, I decided to convert my 99 silverado to DBW just so much easier, and flat out better unless you are on a mild cam or stock cam.
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