Ok, so I'm totally new here and hope this hasn't been asked. I did a search but couldn't find what I was looking for. I bought a used Vortech kit for my truck (2000, XLT, SC, 4.6 auto, open rear) and have a couple of problems/questions:

1) the kit did not come with any type of chip so I would like recommandations on which chip/programmer to get that works best with this setup.

2) the kit came with a mass airflow sensor that was destroyed. (Tried to fix it and gave up) Can I use the stock one or does anyone know where I can get one that will work with this kit. Tried contacting Vortech about it and only got the run-a-round.

Thanks, any help/suggestions would be appreciated.

 

Sorry, 47k on the Odometer, with Cat back 2.75" exhaust and drop in K&N. Not much else done to the motor.

 

I would call mike troyer he can give you a custom tune and probably lead you in the right direction with that mass airflow sensor

 

Vortech uses an FMU to compensate for additional flow like most of the other superchargers available today. Generally if you use the proper FMU and 93 octane gas, you can use your stock tune. Vortech may also use some type of boost-a-pump but you are better off just installing a higher flow fuel pump.
You can go for a complete tune but it will require upgraded MAF, upgraded Fuel Injectors and a custom chip from a good tuner like Mike Troyer who advertises on this site.
You will be better off looking in the Supercharger section of these forums.
Good luck.

 

I have a Vortech V1/ Aftercooler installed in my 5.4L equipped F150.

Yep, agreed. Your kit should have come with an inline fuel pump (T-rex) (boost-a-pump :P)which is just really a temporary compromise for replacing the intank pump. You should use your factory MAF, it will work fine for now, until you tune the truck properly then you should probably seek out a 80mm lightning MAF. The kit is pretty much supplied with the basics to make it run and give an increase in power, but it is definately not optimal until tuned properly. Mike troyer is definately the guy to talk to, he has helped me much.

P.S. Vortech's technical assistance might as well be non-existant, they're pathetic.

 

Thanks, for the info guys, I will post over there.

BTW, dumb question, what is a "FMU"? Sorry...

 

FMU= acronym for Fuel Management Unit. It is a small device that is placed in the return line (after the fuel rail) of the fuel system. It connects to a vaccum line and during pressure increase (boost) it restricts the fuel return to artificially create an increase in fuel pressure. The increased fuel pressure is a compromise over larger fuel injectors and proper tuning, because it will in fact get more fuel into your cylinders, but at max boost the pressure can sometimes near or exceed 100psi... Regardless, a FMU will take care of lean problems in your high rpm areas, and prevent detonation.

My problem with an FMU is my shift-kit and vortech setup with a stock tune... During hard upshifts between 1st to 2nd the transmission shifts faster than the torque management reacts, causing the truck to break loose then "cough" and stumble. What Mike T told me is happening is that the truck is retarding the timing as well as decreasing fuel pulses as part of the torque management procedure. What the PCM doesn't realize is that despite reducing the injector pulse, there is still 100psi of fuel in the line causing too much fuel to enter the cylinder upon each injector pulse, this causes a pig rich condition and makes my truck stumble...

Long story short, FMU= cheap remedy, full tune is the proper way to go, with a lightning MAF (Mass air flow meter), 42lb injectors, and a good inline fuel pump, all with the tuning to match.