I just got threw putting in my walbro fuel pump in a S5 turbo fuel pump assembly to drop down in my S4 N/A. And it won't fit. Are the S5 turbo gas tanks bigger or something cause the assembly is about a inch longer than the stock and it feels like its bottoming out.

 

i believe the s5 tank is 18gal, the s4 is 16 ish

 

Anyone? Im trying to get this done today cause I think its gonna rain. Am I gonna have to swap the walbro on the stock assembly?

 

wups, sry for posting behind your post. That happens to my every time

 

so the S5 pump wont fit in a S4? crap I got to redo everything

 

Post a pic of what you're actually trying to retrofit. If you are swapping in the pump all you need is the cylinder thing, then fit the rest into the s4 fuel pump hardware. I have fit a Walbro 255, an FD pump, and a Supra pump before. The Supra pump has a very tight fit but it works.

 

he was tryin to fit a s5 fuel pump assembly in a s4 tank.....not trying to fit a certain pump into a s4 assembly.

 

Don't use the whole assemply, just the actual pump. Takes all of 5 mins to swap them out and worked fine with both of my pumps i have gone though.

 

I just got threw with it. I took the walbro off the S5 and put it on the S4 and it fits and works. I guess I should of measured the assebleys before taking on this project, my stupidity. That walbro flows like a son of a biatch though!

 

Well I had a S5 turbo assembly that came with my engine that looked brand new and my stock assembly was white and corroded. But I cleaned it off and made it usable. It's all good