For those of you who are thinking about getting 50# injectors but have heard the horror stories about idle quality or poor gas mileage, you may want to consider getting your car tuned by PCMforless (personally not mail order tuning). I recently had Bryan at PCMforless Street tuned my car and it runs great, idles beautifully and I still get 14 Miles per gallon in 50/50 city and highway driving and 17.5 Miles per gallon with 90% Highway and 10% city. My car has an 3000 rpm stall too (click on the sig to see the full details of the car) and I always drive 75-85 MPH on the Highway. The car is currently tuned conservatively until I do a few more mods, add a 3.1 pulley and take it to the dyno for a more WOT accurate tune for power but still be a little conservative (its my daily driver...~500 Miles a week). I got my flow tested MSD 50# injectors from Combination Motorsports and Bryan did an outstanding job tuning my car in under 2 hours on the street. PCMFORLESS ROCKS!!


Now the MAF relocation to the pressure side..

http://images.cardomain.com/member_i...29_51_full.jpg

I wanted the MAF relocated to the pressure side for a few reasons:

1. I noticed a lot less surging at idle when the MAF is on the pressure side.
2. It allows me to be more creative on the intake side of the blower.
3. The MAF sensor can't get wet like it would when sitting under the car while hooked up on the intake side.

You will notice a lot of Constant clamps, that's because I did not get the normal Throttle body intake elbow that comes with the Procharger kits. My kit was originally for a 4.5# setup and came with a shorter intake elbow. I connected the Intake Elbow to the Throttle body, then I added a 3in diameter metal tube by 3 inch in length (covered by turbo hoses) clamped it down and connected it to the Hard Intake elbow with some constant torque clamps. Next, I got some 3inch to 3.5inch in diameter turbo hoses and I connected each side of the MAF sensor and connected those hoses to the Metal tubing on the opposite side of the MAF. I really like the end result, the hoses are very secure, I think it looks pretty good and with the hard 3inch metal tubing I used to make up the distance from the MAF to the Intake Elbow, the hoses don't expand under boost.

Thanks,
Claude

 

Hey Claude nice work, I was thinking about doing this, but my car is runing so good right now I dont want to touch anything. I was wondering what are some of the other reason for going to the top. Why would pressure be better?. I have no idle problem.

Bill

 

When I had my 4.5# kit on the car and had the rebuilt tranny with the stall, I noticed my car would surge like a ***** at idle. I think it was 1Le thumper that recommend that I move the maf to the top because it helped him out. I tried it and it worked really well (no more surging). I also like the idea of having the MAF up on top because it will not get wet or get as dirty from sitting under the car. I also heard other guys move it up to the top because they were installing a hard intake system and it gets more difficult to fit the Maf on the intake side with a hard intake set up (unless you cut up the hard intake).

I have also read and heard that this gives more power this way....But other than the ability to run a bigger filter and a better intake system, I can't see how moving this to the top would make any difference in power.

Hope that helps,
Claude

 

Yeah I moved mine up there after talking to a couple guys and noticing that all of the mustangs run a blow thru design on there MAF sensors. Mine would surge from 800-1800 and just keep going for almost a minute when coming up to a stop light if it didn't die first. So I moved it up top and wala no more surging.


Claude. I have a question for ya. When they were tuning the car did your MAF max out at any point? Mine does around 4700rpm and flat lines because its pushing so much air it can not read anymore than that. I think like 525g/sec or so. I have heard the only way around it is to manualy enter in the fuel values and tune it with a wide band. Just curious to see how he did it. I'm still looking around for someone to tune my car as well.

And I too have problems with the 50#s at idle.....to the point of its like a race car and can't sit still or it will fowl the plugs.

 

To be completely honest with you I dont know if I am maxing out the maf or not, I did port the maf as per Bryans request so he can squeeze a few more gps out of it. I will check with him on monday to see if it did max out and what he did to correct it and repost it for you.

But you cant even tell that my car has 50# injectors in it, it idles flawlessly. I would highly suggest that you take the car to Bryan to have him dyno or street tune it for you. You might want to shoot him and email to see if he will be anywhere near you area soon.

Hope that helps,
Claude

 

1LE THUMPER,
I spoke to Bryan today at PCMFORless. He stated my car did MAX out the MAF but at high rpms right before i shifted (My shift points are at 5900rpms). He said he added more fuel to compensate for the MAF. Bryan said he would look into my file and see when exactly the MAF maxed out and give me a more details on how he fixed it later this week. Once he does, I will email the info to you or post them here.

Hope that helps somewhat,
Claude