Ok 7mm hole drilled. Far too big. Now cant close throttle enough and I get a P0068, so weld is required :(
I think I tuned the DTC out with the ETC processing tables.
But from the initial results it seems it might help. Just a FYI start small unless you want a 1000+ rpm min idle.
Also idle hangs pretty badly. Probably can tune that out with the correction tables, but I need a smaller hole anyway... Ho hum..
Definitely some tables missing!
Update: If I had a cam big enough to warrant a 1000rpm idle then Id be set. Cold start worked well. Tuned out the DTC no problem by c0805 and c0806 tweaks.
Ive had to ramp up integral corrections by a shed load and drop all my other tables back to stock. Still too much air and idle still hangs but not as bad.
Anyway, I think Ill weld her up and bung a 5mm hole in there.
Hopefully one day Ross can find a few more idle control tables and avoid such a crude method