Anybody wired a Flatshift to a CSR ?

[catastrada]

We fitted a Sedav gearbox + the Geartronics Flatshift on my car.

The Geartronics GCU is connected to my Emerald and evertthing seems to be fine.

 

Now we are in the process of fitting a Sadev gearbox + geartronics on the 2 Rcae CSR of my friends.

The point is that they are using the MBE ECU encrypted by Caterham.

 

Does anybody has an exprience of fitting the Geartronics GCU on a CSR260?

 

Is there a pin available on this ECU for "clutch switch"?

 

If not we need to wire the Geartronics GCU to each ignition coil AND to to the 12+ ignition supply.

In that case we need to identify the 12+ ing supply, but we don't know where it is

 

 

 

Edited by - Catastrada on 14 Mar 2014 20:14:27

[Dany]

hi

you should get in touch with olini (iicr) from the french 7 forum. i think is engine is matted to a sadev gearbox and it has the std MBE ecu. maybe i could be helpful

 

cheers

[catastrada]

You mean Olin, good idea thanks 😶‍🌫️

[James.S]

I have an MBE with a pin programmed for clutch. It isn't great, we reverted back to manual shifting. The 620 uses a better ECU for this reason.

 

[catastrada]

James if I understand what you did, you wired the potentiometer from the gearbox to the clutch switch pin of your ECU and then your ECU was managing the ignition cut strategy*.

 

What we do is wire the potentiometer from the gearbox to a Geartronics flatshaift ECU.

This flatshift ECU is using a closed loop strategy to cut ignition.

 

Then the flatshift ECU is

either wired to the engine ECU that only does what the flatshift ECU tells him to do (cut ignition / no cut ignition), which means the engine ECU has a clutch switch pin.

or wired directly the flatshift ECU to the coils to cut/ not cut ignition, when your ECU is locked as Caterham MBEs are.

 

But now we are sorted, the first CSR 280 race is completed including the flatshaift wiring, I just need to calibrate the flatshift. It will be done tonight

 

*Older engine ECU were not so good in managing ignition cut.

More recent ECU including MBEs are now using a clever closed loop strategy too.