I've bought a second hand LT10s that was set up for an FD, the problem is I'm running an FC.

Is it possible to run the FC on the FD setup or will the CAS pickup be different, as I understand it the FD runs a 12 point pickup and the FC runs a 24 point pickup!

I was told from an NZ rotary tuner that all that needs to be done is change the front cover and use the FC CAS...but after reading into this, I'm not entirely sure!

Can anyone clarify this?

 

This is what I heard back from PPRE if anyone is interested.

'Yup it will work fine as the Crank angle sender on the FC runs at half the engine speed so its got a 12:1 per rotation count '

Microtech is pretty slow on their responses so maybe I'll hear back from them later...

 

what ever came of this?

 

The car has just gone in for tuning, the tow truck dropped her off on Friday morning and she should be on the dyno on Monday.

From what I could tell, the only problem I had was the IAT! I tied to use a triumph fast reacting IAT, but once I had this fitted the ecu was telling me the air temp was 99 deg C!!! I called Microtech in Australia and he said it more than likely I've got the wrong IAT!

My initial understanding was that the triumph IAT had the same resistance curve as the stock FD iat, but after speaking to Jon at Microtech, he explained that they generally program the ecu's to run a s4/5 IAT or a GM IAT as they are more common and they're a 'fast reacting' sensor unlike the FD style which is not.

So, after welding another bung onto the throttle body inlet and tapping it, I sourced a s4 IAT from Mazda and now the temp is down to about 13 deg C.

The car starts really easily with the base tune the ecu was supplied with, I'm just waiting to hear from Hitech motorsports with how the tune goes.

 

So far, there is no problem with the CAS, the car is running, starts really easily, revs, doesn't miss, the proof will be in the tune, will post the results in a few days....