The other day my 1991 Non-Turbo 7 was idleing in the driveway and all of a sudden it just died. No studder or anything just stopped. Like if you had thrown a light switch off. When we tried to restart it it turned over strongly but no start. I get no noise from the fuel pump. I pulled the fuel pump line at the tank and wrapped a rag around it and cranked the engine for a second or two, no fuel. I guess the pump died. Did I miss something, or is it NEW Fuel Pump time?
What is your opinion on the Walbro 255 High Output Fuel Pump? I see them advertised on the net for $99.00 and free shipping and include a new installation kit. What do you think????
Do they make more noise than some of the other brands?
What BRAND and MODEL would you recommend ?
All input is greatly appreciated as always.
Sincerely yours,
Robert

 

On all N/A rotaries with little to no mods you have no need to upgrade to a higher lph fuel pump. The factory stuff works far better than needed. Factory N/A rotaries run rich.

I have heard nice things about that pump though.

 

there is an easy way to check your fuel pump. there is a yellow connector sticking out of the wiring harness on pass side of your engine bay. put your ignition in the "on" (do not start it). jump the connector and that will trigger your fuel pump. you'll be able to hear if it's working once it has power.

i doubt it's your fuel pump, but if it is, a walbro is overkill. just get another stocker.

 

I have the same kit you are referring to in my 1990 N/A. I can't hear it run at all. It is, however, rated more for a TII than an N/A, and during winter months, there are times when the mixture is richer on my car than need be. Some would say it's overkill, but I'm quite happy with mine. The stock fuel map on an N/A is biased towards the rich side, so a stock pump works fine but pricey compared to the Walbro.

 

I run 2 of them on my 600hp 20b car, they work fine for me.

You dont really need one tho, just pick up a used TII pump if yours is indeed dead.

 

Your fuel pessure regulator will send all excessive fuel back to your gas tank so it will be fine to use a Walbro 255.

"The regulator adjusts fuel pressure in response to changes in intake manifold vacuum and engine load. If the regulated fuel pressure is too high, the likely causes are a damaged pressure regulator or an obstructed return line."

 

Wrong, the FPR cannot compensate for changes in upstream fuel pressure. If you upgrade the pump, you get richer mixtures. If you massively upgrade the pump (i.e. Walbro in NA), you get much richer mixtures. It's a dumb idea and just shouldn't be done. Get the right pump to suit the engine's needs. Even a Turbo pump is a pointless "upgrade" on most NA's.

 

where do you see the walbros for $99+shipping and kit??

 

Ebay brah.