We want to convert our cable throttle to DBW.

Has anybody done this? Is it feasible?

Any help appreciated!

 

Why do you want to convert to drive by wire? (it has its problems ) and what car do you have?
You understand that its probably going to be very expensive as the ecu controls the drive by wire function, so feasible? probably not.

Tony

 

It's a racing car, we use Motec M800 which can control DBW,

We want the DBW because we are installing a sequential gearbox and it will be needed for down shifting throttle blip. Also it will be needed for the Anti-lag to work properly.

Car details: http://www.am-autoexe.com/project-details/2

 

With the best will in the world, I'm not sure why you're asking this question here. It's certainly feasible to convert a cable throttle car to drive by wire, if you have the expertise and kit.

However by the sound of things you are already running a significantly modified engine with non-standard throttle body, and thus surely whoever's overseen those mods will already know far more about the setup of your car - and the feasibility of doing this, than anyone who can't actually see what you've already got.

It's certainly possible - and in these circumstances you clearly have a choice between dropping in some roadcar DBW stuff or using an Impreza WRC S5-S14 electric TB and pedal position sensor, or similar motorsport level stuff. The latter is liable to be much more suited to the use you're putting the car to, although will require more integration work.

 

I just do not know what parts do I need other than the throttle body, I did a search and I could not find any parts in order to carry out this conversion, especially with the floor mounted pedal box I use.

 

Again, with a clearly significantly modified car, we're not really in a position to help you dude. Given how much has been invested in that machine you should be speaking to the preparation specialist(s) who've got it where it is right now.

The main parts you would need would be the motorised throttle body and a linear position sensor, geared rotating pot, or whatever else will fit your pedal box to generate a throttle pedal position signal into the ECU. The other obvious bits would be the cabling and connectors necessary to supply power to both items and interface them to the M800.

Without seeing the pedal box we clearly can't tell what sort of sensor to use, and you'll probably need some modifications made to the box to fit it - unless of course it's been designed with drive by wire use in mind and there is a ready-made conversion kit available. We can't tell you exactly what sort of throttle to use either, given that, by the sound of things, you already have a non-standard (or modified standard) unit fitted. If, for example, you are using a standard-based throttle unit at the moment, but want to replace it with a WRC-type one, you will probably need to do something different with the MAP sensor.

As per the top of post #4, you really need someone with the expertise to do this actually looking at the car and advising you on that basis.

 

I have a 2006 WRX DBW throttle body, inlet manifold and all connectors/wiring for sale if they are of interest.