C&L TRUEFLOW MAF CALIBRATION GUIDE

The following is a list of the most common sample tube applications for various vehicles using our mass airflow products. Each calibration tube is easily swapped out by simply removing the two allen head screws at the top of the unit, located just under the electronics module. There is no need for you to send the unit to us for re-calibration, and you get to keep your old calibration for possible future use.

Mass airflow transfer function sheets for the most popular applications are available upon request (via fax or email). We only recommend the use of transfer function definitions in high horsepower supercharged applications, or in situations where a radical combination (extremely large camshaft) has been used. We have received requests from people who have tunable computer systems who want transfer functions for stock or slightly larger injector applications. This is totally unnecessary, as our calibrations have already been fine-tuned on the dyno for the best air/fuel ratio. Re-defining the MAF transfer table in such an application would cause the air/fuel ratio to revert back to the richer (and lower performing) stock level. You would then have to manually adjust the WOT fuel table just to get back to the power level that you were already at with the standard MAF transfer function.

If you are not actually using a dyno to tune the computer, you will most likely end up making LESS horsepower than you would with a completely stock computer and typical timing adjustments. The use of a dyno is completely necessary whenever you use a system that gives you total control over all of the computers vital functions.

CALIBRATION TUBE CHART