98 fuel pump

vitoGT · Aug 27, 2009

I want to go to a Walbro 255lph High Pressure pump,I have found for kits go up to 1997. Model # GSS340 is the pump to use, is it also direct fit for 98 ?I think I have returnstyle-car build date 08/1997 and model year 1998. This is photo from my car. Is it difficult to change fuel pump basket to make it work with Walbro GSS340?

Blackone51 · Aug 27, 2009

Yes that looks like what I have (return style). I think they only go to 1997 because some 98's have the returnless style. I know 98cobra281 put that pump in his car, maybe he'll chime-in. I also know I'm putting in an external fuel pump in my 1998 but when a get my built block and can up the boost, I'm going with that same Walbro in combination with the external Anderson pusher pump (same as T-rex).

soupnutz · Aug 28, 2009

Been a few years since I changed my fuel pump and I can't remember everything, but the difference on the 98 is that the sender and pump are in the same unit whereas on the 96,97 they are seperate, and the 98 has a fixed non-adjustable fpr on the fuel rails. heres alink discussing it.
Need help! 98 GT fuel system - What's so different? - Modular Depot Forums

The walbro should fit with modifications to the basket.

I installed a focus svt pump, no modifications whatsoever.

vitoGT · Aug 29, 2009

soupnutz said:
I installed a focus svt pump, no modifications whatsoever.

Thaanks for answers, did you install focus svt pump with return-style system? I think i buy this pump Ford Racing Performance Parts [M-9407-D46*]

Blackone51 · Aug 29, 2009

soupnutz said:
Been a few years since I changed my fuel pump and I can't remember everything, but the difference on the 98 is that the sender and pump are in the same unit whereas on the 96,97 they are seperate, and the 98 has a fixed non-adjustable fpr on the fuel rails. heres alink discussing it.
Need help! 98 GT fuel system - What's so different? - Modular Depot Forums

The walbro should fit with modifications to the basket.

I installed a focus svt pump, no modifications whatsoever.

How, the svt focus pump is for a returnless style system??

soupnutz · Aug 30, 2009

Blackone51 said:
How, the svt focus pump is for a returnless style system??

quick question on fuel pump - Modular Depot Forums
Hers the original thread I wrote asking Randy Stinchcomb, (who is a mustang expert and parts guru) about the pump I installed. Bought it as a vortech pump #8f001-265, the part stamped on it was a ford part #3s4u-9350-aa, which according to him and every google search I've done is a SVT focus pump, (http://forums.corral.net/forums/showpost.php?p=2989676&postcount=6). Installed withoug modifications and has worked flawlessly for 2 years now. Unless vortech actually changes something, (which I doubt they did), from what I've read they just tested it at a higher voltage rate to get the 255 lph and resold it as their own.

soupnutz · Aug 30, 2009

Blackone51 said:
How, the svt focus pump is for a returnless style system??[/QUOTE

Another thing I just remembered and had to find to verify, vortech has that pump listed as 98-04, so maybe it is for returnless, but for whatever reason it works on a 98.

98 fuel pump

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