Originally Posted by goatnipples2002
Can I run with no tune....IF I run a cal'd maf and bigger injectors? Will the ecu correct the A/F?
What about MAF signal manipulators?
I want to run an A/F controller like an SAFC, but I am not sure about that as well.
Aside from a standalone what other options do I have?
What are the details on the rpm extender?
Havenâ€™t we already been down this road before?
If you run a MAF meter calibrated for the injectors, yesâ€¦it will most likely run without a tune. The new MAF meter will output a signal that compensates for injectors and also somewhat for forced induction. Many have been able to simply run a MAF meter calibrated for their injectors and locked out timing. Is it ideal? Hell no! Can it work? Yes, although without having a proper tuneâ€¦.you will have no idea what your AFRâ€™s are. They could be overly safeâ€¦.or they could lead to detonation issues (blown head gaskets).
As for the SAFCâ€¦.youâ€™re on your own with that one. I will say though for the price, Iâ€™d go a different route as even if it does workâ€¦you will still need to pick up a wideband to tune.
If you are interested in low budget options, the tweecer and megasquirt are about as low as it gets. Again, you will need a wideband for each in order to tune properlyâ€¦.and the tweecer will require a bigger MAF meter with more range as well (lightning meters are abundant, effective and cheap).
The rpm extender is simply a device to stretch the limits of the MAF meter in question. It will not allow you to tune anything, but rather give you a MAF signal when you have maxed out your current sensor.
If you donâ€™t want to spend the money, there is always the option of keeping the stock MAF and injectors and simply throwing on an FMU. Itâ€™s not the best way to do thingsâ€¦..and it has its limitations. It is by far however the cheapestâ€¦.and a viable option to allow you to save up some money to get a proper tune.