Contour Enthusiasts Group Archives Forums Modifications Duratec Performance PRO-M and KKM

I bought it because many people have claimed more umph than a catback. For example: Dan Nixon dyno'd 11hp more. That's why I bought it.
...and no, I haven't read what Rara said...got a link??? I'd be interested in reading what he says.

11 hp gain with a pro m, wtf. That's news to me. Probably more kkm than pro m. One thing I know about STVs is unless sc or go 3.0 we just don't get real fast. I'm not against trying new things, but my advice is get a bassani, kkm, y-pipe, eibachs, and a 22mm rsb and call it a day, or maybe a venom kit. If getting fast is that deep just get a stang or one of the dreaded(rightfully so) bowties.

trinity - yeah he dyno'd an 11hp gain. many people have dyno'd a 3-4 (or less) hp gain w/ a KKM (or comparable filter) so I was thinking the MAF had a lot to do w/ it
i do like your mod suggestions though

I was not being sarcastic, I've just never heard anything good about pro m.

understood - no worries
i completely understand where you're coming from when you say "call it a day." these cars are hard to squeeze the extra hp out of

Gee. Mine works great. Gave nice gains. (Dan dynoed 12FWHP with just it and a K&N!) I've had it on for over 2 years...

Wonder why my engine hasn't blown up??? :rolleyes:

Why is it so dastardly a piece? Because it isn't stock Ford... :p
It's a calibrated unit just like the factory piece. Just with a much more efficient design.

This is my take on aftermarket MAFs. I was friends with an engineer on Ford's MAF production line, mostly a go-between for the plant and the designers, so I know a little about how they work.

• Recalibrated units with their own electronics are fine (Pro-M included), as long as they are properly calibrated for your engine configuration. I suspect Keith's is not.
• Units that use your stock electronics with a "flow tube" are less desirable. The electronics are hot calibrated on a flow bench in process (at Ford) after the electronics and the sensing elements are fully installed. I'm a little wary of anything that requires you to move the electronics. Same logic goes for removing the electronics to clean them (or any other reason). There is a reason Ford sells them as a unit. The electronics don't even have their own seperate Ford Part Number. Well, they do, an assembly number but not any end-item part number. Nothing that is meaningful outside the production line or engineering.
• Don't go hacking your stock MAF to make it flow better. I'll leave it at that.

EDIT - OMG, that was my 3000th post. I need something else to do in my free time.

It is true that I gained 12 HP with Pro-M and K&N vs stock MAF meter & filter. I did not do separate dynos to figure out the individaul contribution but what I felt "butt dyno" if you will was that the Pro-M gave a big improvement in throttle response and a bigger kick in the pants than either my Bassani, Y-pipe, or K&N. Now, they were all on the car first so the Pro-M probably benefited from them. BTW, I think much of the benifit is the loss of the center pilar which looks like it makes turbulence NOT the fact that it is 5mm bigger. Some effect of A/F ratio probable as well though no change in fuel economy with this mod (but the K&N was worth 1-2 MPG.

Several cavats,
1) It is an SVT with #19 lb injectors (may not work well with smaller injectors).
2) Custom calibrated to my car, EEC code, filter, etc. May not work on somebody elses car.
3) I have other mods, may not benefit otherwise stock cars.
4) It has its own electronics not stock electronics like some, which I think is a bad idea.
5) I did read what Rara said about "fooling" the ECU. It does. So does the Apexi-i, MAFterburner. Some risk involved if you make the car to lean or rich. I will be dynoing again soon with wideband O2 monitoring to be sure and I have now obtained a MAF optimizer to make any adjustments in A/F (if needed). I believe this is safer than random throwing of parts on the car.

Also, I will let you know what the MAF optimizer does. I know, it offers less capability than other A/F tricker but is cheap, very easy to install & remove (plugs inline with MAF meter). I can remove my trick airbox, filter, airtube, MAF meter & optimizer in 5 minutes and replace with stock for dealer trips (I have 50K left of warranty!). One of the Cougar guys gained 10 HP with the thing. I suspect that peak gains will be near Apexi-i, but less in the middle of the curve because I can't tune at in between idle and max RPM. Custom burn chip, EEC tuner the best but require MUCH more tuning skill, carry more risk, cost much more considering the amount of dyno time and reburn costs. Anyway, these are my thoughts, will keep you posted..

i was getting a code also when i installed it. was waiting to go to a dyno to mess wit the safc but i remebered what i was getting voltage wise so i adjusted it accordingly adding about 4% correction. results no code nemore and car is running smooth.

Dan and Demon - thanks for chiming in w/ your dyno numbers. You guys were the reason I bought mine.
Dan - please let us know how the MAF optimizer works for you. It is a heck of a lot cheaper than the Apexi or a dyno-tuned chip. There's always that saying "you get what you pay for," but in this case, the adjuster isn't a bad product (at least, I don't think it is), it just doesn't have as many bells and whistles as the Apexi. Anyway, let us know how it works out for you, please.