My tuner told me I need a new Map sensor because the cold weather is making me make more power and maxing out my MAF. What happens is the car goes into limp mode and I have to turn the car off and lower the boost. Scares the crap out off me every time it happens.

Is this true and where can I get a better maf? I did a little research and theres a HPX maf?

Right now im on the stock Plastic tube.

 

Yeah, I’m not entirely sure but I had UpRev Osiris on my car and I talked to my UpRev tuner and I think he said I’d need to get a new MAF, I looked at the PMAS Performance MAF Sensor that GTM has on their site… but I ended up switching to ProEFI’s 48 computer in the end, didn’t need to swap out the MAF.

 

I have a MAF and the OEM housing for sale if you want.

However, I have trouble believing that you're making so much power on a TN kit, and that its so cold in FL that you're maxing out the MAF. I honestly didn't even know one could max out a MAF...

 

Yea its making me crazy, I cant run no more then 8lbs without it setting off limp mode. My car dynod more power then normal with the TN kit, in 105 degree weather at 4lbs I made 345hp, at 7.5lbs I made 412. Im sure in this cold weather im making gobs more and blowing out the maf.

 

I think Uprev sells a MAP sensor to handle higher air flow than stock. It was listed on their website when I looked into it a while back.

 

http://www.youtube.com/watch?v=iYucV97DGHk This was in JULY and it was 100 degrees in that shop. The car made over 400 easy, im running a straight 3inch pipe out the back, not sure if thats adding to the power. Also the motor always was a beast from the start, it was on Nitrous from 1,000miles and untill 58,000. Usually 2 bottles per weekend. Not the greatest video but if you look on my Youtube page theres a bunch more dyno vids on the TN setup.

 

Awesome I will look for it now.

 

so are talking about a MAF or MAP sensor. Not the same...

 

Chances are they were not lying to you. We see it forced induction cars here relatively often.
We have a handful of the sensors in stock still if you need one shipped asap.
http://www.rttuningspeedshop.com/cat...lrm26rbsjj4064

 

THanks so much! Do you need a re-tune after you install it?

 

hmmm. suscribed

 

I had to get an upgraded MAF, I guess they lost all resolution over 4k RPMs. I believe UpRev sells one on their site.

 

HPX MAF ftw!!!

 

I have a HPX MAF that I can sell for $150 ship it was used for about 2000 miles.I am going to put it up in the for sale section later let me know if you want it.

 

So guys do u have to be retuned for the HPX MAF? Or is it a simple plug in and drive?

 

I think you have to be retuned

 

You have to be retuned just take your car to your tuner then put it in there.

 

you will have to be re-tuned since all the parameters will change and there will be more range/more of them.

I had heard awhile back HPX went out of business Not sure what other options are out there for your needs but seems like a few people still have HPX's around soo you should be able to get up and running

I ran into the same problem you did at 7psi on my kit I run the HPX now and have no issues

 

My tuner is also recommending me to go with an aftermarket MAF sensor. I'm switching to Osirus and Uprev sells a MAF sensor for $350. My supercharger setup should be making roughly at around 400HP which is exactly the the fuzzy point.