[Awesomo 5.0]

Long time reader first time poster.


I have recently installed GT40 heads Cobra intake and 24lb injectors as well as a Pro-M MAF tuned for the 24lb injectors and a CAI but still have the stock airbox. Currently I have a WOT miss at about 4700 RPM and have replaced most of the usual suspects- Distributor, TFI Module and TPS (and set with .98v.) I am thinking the miss is due to the Non-CAI tuned MAF with the stock setup. Has anyone had any experience with this?

I purchased the MAF with the intent to upgrade to a CAI at a later date.

I have looked and looked but cannot find any answer on this. I know that the car should run better once I get the CAI but was wanting to know if the miss could be due to the incorrect meter. Any help is appreciated, Thanks!

[302Feen]

Originally Posted by Awesomo 5.0

Long time reader first time poster.


I have recently installed GT40 heads Cobra intake and 24lb injectors as well as a Pro-M MAF tuned for the 24lb injectors and a CAI but still have the stock airbox. Currently I have a WOT miss at about 4700 RPM and have replaced most of the usual suspects- Distributor, TFI Module and TPS (and set with .98v.) I am thinking the miss is due to the Non-CAI tuned MAF with the stock setup. Has anyone had any experience with this?

I purchased the MAF with the intent to upgrade to a CAI at a later date.

I have looked and looked but cannot find any answer on this. I know that the car should run better once I get the CAI but was wanting to know if the miss could be due to the incorrect meter. Any help is appreciated, Thanks!

I wouldn't think the CAI would cause such a problem. I mean how would the MAF know if there was a CAI or not????

When was your last tune up?

Oh yeah... Welcome to the site! You'll love it!!!

[Awesomo 5.0]

Good question and thanks for responding,


The MAF I purchased was supposedly calibrated for a fenderwell CAI. So my understanding is that the airflow pattern going to the meter will be different when having a fenderwell CAI so the MAF sensor should have a different calibration than a stock setup. Probably not a huge deal but since I upgraded the injectors when I did the intake and the heads I figured I would go with the MAF calibrated for a fenderwell CAI because I was going to add one anyways. Obviously I am going to by the air intake anyways but I am trying to see if their is anything else that could be causing this condition.

Thanks, I have been reading this site for a while and love it

[302Feen]

Originally Posted by Awesomo 5.0

Good question and thanks for responding,


The MAF I purchased was supposedly calibrated for a fenderwell CAI. So my understanding is that the airflow pattern going to the meter will be different when having a fenderwell CAI so the MAF sensor should have a different calibration than a stock setup. Probably not a huge deal but since I upgraded the injectors when I did the intake and the heads I figured I would go with the MAF calibrated for a fenderwell CAI because I was going to add one anyways. Obviously I am going to by the air intake anyways but I am trying to see if their is anything else that could be causing this condition.

Thanks, I have been reading this site for a while and love it

With a fenderwell CAI, there is about a 90* bend after the fender and into the MAF. That can cause some turbulance in the airflow. So that MIGHT be what the "CAI tune" is for. Not sure though...

When was your last tune up?

[Awesomo 5.0]

Well I replaced the plugs and wires when I did the heads and intake manifold so recently. So I'm going to buy a fenderwell CAI and see what happens.