Walbro 255

[DSM_dreams]

i am new at DSMs so im just trying to learn a few things about them so here is my question


the guy i biught my car from put a walbro 255 in the car... i have been reading on here and it looks like i should runn a AFPR but he tells me they are a waste of money and id be foolish to buy one????

 

[drivemusicnow]

i am new at DSMs so im just trying to learn a few things about them so here is my question


the guy i biught my car from put a walbro 255 in the car... i have been reading on here and it looks like i should runn a AFPR but he tells me they are a waste of money and id be foolish to buy one????

Slap that guy upside the head repeatedly.

To run a wally255 effectively, you NEED an AFPR. The "rule of thumb" is that the stock FPR will get over-run at any pump larger than a wally 190. When this happens, you get too much, and non linear fuel pressure to the fuel rail, which will make it extremely difficult to tune properly.

 

[steve]

If you drive your car at part throttle rather than just WOT you'll need the AFPR to tame your fuel pressure overrun. At WOT your engine is eating the extra fuel that would cause the regulator to overrun so it's not an issue.

Steve

 

[DSM_dreams]

thanks alot guys... ill definetly pick one up.... any company in paticular i should buy??

 

[drivemusicnow]

Lot's of people use the aeromotive one, I personally use the FullThrottle bolt one AFPR.