FPR Stuffed & Back to Carb Only

Hi all. It’s been a while since my last report.

I recently went on the VMCi economy outing. The car did not perform very well. It was way down on torque in the low RPM’s below 3000RPM. In fact for most of the time I followed a lovely couple in their original 998cc clubman and I had some trouble keeping up with them on the steeper hills. My thoughts turned to pushing out my 6′ 97kg 15yo son, but thoughts of facing his mother deterred me!

Today I had a look at the EFI and as surmised in my previous posts the fuel regulator is not doing it’s job; its allowing the pressure to jump all over the place. As well the gauge is getting stuck and not returning to zero (it most probably bashed it self to death).

I decided I would put the SU bell back on returning the car to carb with ignition only control from the ECU. One of the reasons for doing this was to see how the car goes back on carb and to see if it is fuel related.

Well one thing it proved, was yes the FPR is rooted (Aussie for ‘stuffed’ for OS readers). I lowered the OP pressure to around 3PSI, but after a while the pressure jumped to around 16PSI which you guessed it; flooded the engine to such an extend it became hydro locked. End of experiment.

I’m really not too happy with the fuelling side of this conversion, but the difference having programmable ignition was very noticeable, especially in the lower RPM ranges. Due to this I’m considering returning the car to ‘standard’ which is quite easy to do. I would like to be able to use and enjoy the car with out worrying about VE maps AF ratios etc. etc….

I feel a little bit disappointed that this project has not been a total success, but maybe it has; the original purpose of this project was to help me get out of a period of major depression and to re-join the work force, (achieved), and to learn more about EFI also achieved.

As to what the future holds in store for this car….. stay tuned! Hint ‘sparks’.

Thanks all to those who have been following this thread.