Blackcoog
Hard-core CEG'er
Anyone wired up a voltage divider on their MAF instead of swapping to a different Ford MAF? The MAF housing itself is not restrictive so it seems odd that all the FI people switch to a huge 80 or 90mm MAF. Everyone must run a huge step before and after the MAF to get it to fit which can't be good for sampling the air flow. Wouldn't running a voltage divider on the stock MAF be a better option or do you loose resolution?
Using the SCT Pro Racer package you could just scale all the values based on the voltage divider you pick. For example I'm pegging my MAF at about 5700rpms. If I were to run the output into a 1k Ohm and then a 4k Ohm. Ground the other side of the 4k and pull our new output from between the resistors that would change 5v to 4v on the output which should give me more than enough range. I can multiply my transfer function by .8 and I should be set right?
edit: Looks like I'm going to try the voltage divider. A guy here at work has a 600whp 98 Cobra that he did this to. Works great for him. He also has the SCT Pro Racer package. I can't figure out why all the mustang guys drop $150 on a MAFIA to extend the MAF range when it's really just a POT with connectors on it in a nice case. You'd think they'd know that they can save $149 and build their own that will work just as well.
Chris
Using the SCT Pro Racer package you could just scale all the values based on the voltage divider you pick. For example I'm pegging my MAF at about 5700rpms. If I were to run the output into a 1k Ohm and then a 4k Ohm. Ground the other side of the 4k and pull our new output from between the resistors that would change 5v to 4v on the output which should give me more than enough range. I can multiply my transfer function by .8 and I should be set right?
edit: Looks like I'm going to try the voltage divider. A guy here at work has a 600whp 98 Cobra that he did this to. Works great for him. He also has the SCT Pro Racer package. I can't figure out why all the mustang guys drop $150 on a MAFIA to extend the MAF range when it's really just a POT with connectors on it in a nice case. You'd think they'd know that they can save $149 and build their own that will work just as well.
Chris