440s VS 550s with SAFC

[supraguy31]

Ok all, Im thinking about Pulling my 550s out and Putting my Stock 440s back in.

Im running a MAF-T set up and I cant for the life of me get the Idle to setting like the 440s does. If the car is Idling about 1000, It doesnt miss, If it drops below that, I start the get a Slight miss that you can hear and feel.

Also, Im running a MAF-T with it. Cant seem to figure out that I need to set the IDLE, MID, and WOT settings to get the 550s to run correctly. It was suggested that I leave the MAF-T settings at 0 and use the SAFC to tune. Problem Im having is that the SAFC only goes up to 50 and Its still doesnt Idle Correctly or do anything.

Ive Started to Noticed that the car will sputter at 14PSI all of a Sudden as though Its hitting fuel cut but I have the MAF-T at Fuel cut Disable. Before I was running 19 to 21.

Any Help or Recommendations.

Robert

 

[1TuffSupra]

I thought that with the MAF-T you could input the size injectors you have and with things like idle (which is controlled by the ECU, ie a base tune) would be altered accordingly and any adjustments that you do should be to fine tune it. Have you tried leaning out the mixture at idle? Ive never used the MAFT personally, just read the threads that popped up about it a while ago and checked the site out once, so Im not sure here. Either way though, you should at the very least, be able to adj the amt of fuel injected into the vehicle at idle with the MAFT.