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BoxxerSix BoxxerSix is offline
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Join Date: Jun 2006
Location: Ballston Spa, NY
Posts: 528
Originally Posted by JMA-RUF View Post
Well, the Motronic needs an idle signal, otherwise she'll just stall. When you release the accelerator, a micro-switch closes and signals to the ECU that the engine is in idle mode. This switch is attached to the OEM throttle body.

if I go to a 75mm TB, I somehow need to adapt this/a switch for this idle signal
haha fun stuff. You buy the TB and send it along with the switch to me and I can take care of the mounting of it for you when the time comes

I'd love to do a nice custom ITB setup on my motor here as well but it's cost that's holding me back.. The subie engine already uses twin 49mm TB's and a split plenum setup with what they call an iris valve to control plenum balance between both halves of the motor. All so complicated.
Adam Hennessy
Old 02-26-2009, 02:58 PM
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