Rob, me and Jeff have talked quite a abit about doing a surge tank, actually Jeff is the one that suggested it be something that I do, also he supplied me with the link I shared above...

Jeff, I will use the oem pump instead (I know you suggested this to me before) what size fuel lines did you run? Im thinking that -8 feed and -6 return should be more than enough for ~650whp, I already have the walbro rewired, so should i put it back to stock wiring for the oem pump, and run the 044 on the relay and wiring i had used for the walbro? do you have any pics that you can share of the RSX setup?

i was thinking of making my pump hanger look just like this



you also suggest a 100 micron stainless element, post 044 correct?

P.S Jeff thanks so much for the help with my clutch disc issue, it should be in the mail back to CC by monday!

 

You guys bring up some good points I didn't consider, I might have to rethink my stance on these.

Good info.

 

I´ll use stock pump combined with surge tank and 044 in my car, will post pics and review later.
This way I´ll have a simple install and a lot of fuel ready when needed.

 

We actually gained power (+5whp) after installing a 1 Liter surge tank. I wish I went with the 044 instead of the Magnafuel pump. Only thing missing on your list is the fuel filter. It was a PITA fitting everything in.

I did use the Walbro 255 as a feed into the surge tank. Depending on your setup and as Jeff advised, you may want to keep the OEM pump. I went with the walbro just to be safe. Good luck!

 

What I've seen is 10 micron post-external and 75 - 100 micron pre-surge tank, the OEM sock filter should be good enough for pre-surge tank

You can prime both pumps at the same time, that's how I've been running my pumps in the Subie, an in-tank Walbor and an externa FueLab Prodigy pump. The surge tank will always be mostly full, so no need to sequence priming.

Evans, great info on the OEM pump being more reliable at low fuel levels and capable of handling flow for the 044

This is on my Subaru STI, different application but similar concept. I changed the el-cheapo 40-micron screen filter element with a FueLab filter
http://i153.photobucket.com/albums/s221/En...stemlayouts.jpg

 

my main concern on the priming was for the first start up, i was thinking the prime the walbro (or OEM) first to fill the surge tank, and then prime the 044 to make sure there is fuel in the lines, then always have them prime together from there on out....

i was reading the same thing, that 10 micron is post pump and 100 micron is pre pump, so im thinking of just using a 10 micron stainless steel element filter...

thanks so much for the picture!

 

Or you could simply put some fuel in the tank so priming on the first startup isn't an issue?

 

i guess you could do that lol

 

Ah - I misunderstood your question.
Yes, definitely best to fill the surge tank first. Just disconnect the external pump and cycle the ignition key several times, like 5 - 10 times, (or connect in-tank pump direct to power for a few seconds)

That way the external pump won't be running dry and risk getting damaged.

 

Or before you put your lines on, take a funnel, and pour some fuel in, lol.