Walbro 255 Pump w/ DSM Link but no AFPR?

[Spoolin96DSM]

Ok I have read almost every thread about the Walbro 190 and 255 Fuel pumps. Now I was wondering if you have a Walbro 255 pump and DSM Link, but no AFPR if that's ok or do you still need one. I will be putting in a Big 16G with 550 injectors. Now I've seen some people run it with the Walbro 190 Fuel Pump. However, eventually I will be upgrading my Big 16G to an FP Green most likely. So I was planning on just getting a Walbro 255 pump and my friend said I would just be running rich until I got DSM Link. So do I need an AFPR with a Walbro 255 Fuel Pump and DSM Link or is the stock one fine?

 

[jtmcinder]

If you continue to be 15 psi over (in fuel pressure) when boosting to 20 psi, then your problems are more serious than usual and can't be fixed using sliders. With that said, I must admit to not believing you.

As to whether moving the sliders will fix the actual problem: of course, it doesn't. It's a kluge, not a fix. I gets the car to have the right amount of fuel injected at idle by decreasing the time the injectors are open to compensate for the higher flow due to the higher pressure.

WRT to Post #23: I strongly urge you to read more on this before doing anything. I especially suggest that you read the VFAQ on how to rewire the FP.

- Jtoby

 

[erald01]

just get the afpr cause i have the same set up and the engine works a lot better and the fuel flow is perfect. not only it does the job but it also makes ## engine bay one step closer to looking good