ok so i sc my car and used a walbro 255 then had a shop put in my vortech and now am having problems with the car starting and the auto trans shifting when you are all the way down on the gas and yes the car is in auto shift. so the shop is telling me that my walbro is too big for the car and it running like 70 lbs of fuel presser anyone know anything about this please i need help!

 

Since you put vortech in after the walbro, did they install the FMU from vortech? Not sure if that might be a problem or not worth checking.

 

they did it bought the whole vortech kit

 

I think you're not suppose to your the FMU with a walbro. I believe it should feed the fuel directly and the FMU is not to be used if you have a walbro.

 

paul at art said he has sold over 100 kits with this setup and never had this problem with the fuel

 

I didn't think the Vortech Full kit came with a 255 Walbro. It's like a 190 or something.

 

no i called walbro it is a 255 the inline one is

 

No- The Vortech is supposed to come with a 155 for a full kit. It's supposed to run in conjunction with the Vortech FMU.

Also- the tranny not shifting correctly is because the tranny is worn. How many miles on the car before the vortech went on?

 

i called walbro and read them the part number on the pump vortech gave me and walbro said that it was a 255

 

the car has 20,000 miles on it it is not the trans it is somthing they did wrong

 

I did not know walbro made an 255 inline pump. Typically, people install a walbro 255 that's an in-tank pump which replace your oem fuel pump(nissan oem not vortech). When doing this, vortech user do not install the FMU that came with the vortech kit as the new pump flow enough for the additional power.

It sounded like yout bought a 255 inline pump to replace the smaller one that came with the vortech?

 

I have no idea..
a 255 inline is really different for our cars. I'm running at 255 inTank for JWT FMU. Passed on the Vortech FMU and inline pump.

 

i think i found out i think they forgot to do step W.in the vortech wireing the emc i am trying to call vortech now to ask them