Here you go Mick. Not for motec but off of my 347 ITB / TPS load referenced system.Is any willing to share an ignition table set up for TPS load sensing not MAPS sensing for Motec (old M48). ITB's compression is 9.5.1 fuel is 98 octane
Thanks Rick that perfect assume your using this table, 347 will be way tourquier, mine revs doesn't start making power until 4000rpm and comes on with a bang so Im guessing I may need to add a bit in further up the table, Dyno time doesn't help it has to be done on the road with a lap top and thats hard when you cant do over 100 kph .Here you go Mick. Not for motec but off of my 347 ITB / TPS load referenced system.
One way of getting a reliable source of vacuum shown here —Hi Jasper,
I have spoken to Motec directly pretty much no way of using vacuum to control anything accurately with ITBs as long as I'm using the M4-48 ECU. apparently the ECU cant get the MAP sensor to react quickly enough, the explanation I was given was the its very difficult to measure vacuum accurately using ITBs (no direct connection available) also compounded by my cam it has a large overlap so it produces almost no vacuum at idle . I would love any help you can give.
The above is true at idle, that's exactly the problem with ITB's. I'll have to look into your ECU specifics to see if you can blend speed-density with alpha-n tuning (two different load maps), that would be the way to make it work in idle and full throttle.
You have an M4 or M48, they are different in the amount of injector and coil outputs they can control?
M48 gives me sequential and Multi coil options but the age of the processor is the problem so Motec tell me.
I revised the Lambda table and retentioned the spring clip fitted in the magnetic TPS unit I have. The 40 is driving beautifully couple of small spots at cruising speed on light throttle i need to tidy up in the ignition table, stopped hunting now and crisper on the throttle.