When to rebuild Paxton 2200SL

[Gruca]

How do you know when the head units need a rebuild? Mine runs, isn’t terribly noisy, but when datalogging, my load and Maf lbs keep decreasing over time. I have a 3.48 pulley on it currently and load peaks around 1.55. It used to peak around 2.10. I also used to peg the Maf sensor, and now I do not. I’m assuming it’s due to decreased air flow? My boost gauge still reads 13psi around 7,500. Not sure what else would cause the lack of airflow at the Maf.

 

[stkjock]

dirty air filter?

 

[Gruca]

dirty air filter?

You know, I thought about that after posting. I did have a red reusable one on there when I datalogged. I recently put a paper version of it in. I’ll datalog it again and see what happens. Good call.

 

[Coosawjack]

Belt slipping!!

 

[stkjock]

Belt slipping!!

with his boost levels static?? not likely

 

[01yellerCobra]

How much has the weather changed?

 

[Gruca]

dirty air filter?

Well that was definitely it. The paper filter got my load and MAF flow rate back to what I would expect.

The weather was crappy both times I data logged. A little cooler the second day, but much more humid.