To fit individual throttlebodies to either the Duratec +4 or sigma engined 4/4 you have to use a piggy backed ECU
This is primarily because the Ford ECU fitted to the cars not only controls the engine but also runs the instruments through a CAN system.
The instruments simply will not work if the ford ecu is removed
I can attest to this having been the senior race and development engineer at RTCC for nearly ten years and having developed many of the products RTCC now sell
I now work with Peter Mulberry at Mulberry Fabrications
Chas Windridge at Mogsport, who we share a workshop with, has carried out many Duratec Throttle body conversions and is well versed in the pros and cons of the job
He can even supercharge your Duratec giving circa 280BHP!!!
Simon,
As a rank amateur, I'm always happy to get tips from the pros
I've seen the setup Chas uses. Is he using a tapered throttle body set up?
Also (and this is only my surmise from seeing some pictures) given the width of the ITG air filter he fits, is he using very short air horns?
I may be acting on duff information but it is my understanding - and put me out of my misery if I am wrong- that in the case of the Zetec engine as fitted to later 4/4s, it is possible to do everything via the Omex ECU with no need to piggyback?
Alternatively, would it be possible to eliminate the need for a piggyback ECU by remapping the original Ford unit or fitting an Omex and thn remapping that?
regards,
G
