Finished product looks good!

Larger fuel pumps have the capacity to empty the bucket much faster than a stock bucket. Since large pumps are usually used with higher power engines with a greater fuel requirement, most people dont size their pumps correctly and so they drop fuel pressure. What that really means is no fuel is being returned to the tank so the bucket empties even faster. Obviously the fuel also sloshes to back on hard accel so the bucket doesnt get refilled from fuel in the tank beside it through the bottom.

His setup is exactly stock. I doubt he will ever have a problem starving the pump because his fuel requirements are low, and pump is small.

 

Thanks Richard! So is this why some of the Walbro Modules have "jet pumps"? To better keep the fuel in the bucket?

Does a 400 fit the bucket as well as the 255? I'd like to keep the bucket pretty close to stock as well.

 

I'm not familiar with jet pumps...

the 400 is very close to the same size as the 255 but the bottom is a bit wider since the 400 isnt a perfect cylinder.

 

The 400 looks like my stock pump I removed...A little larger at the bottom in the bucket...There is plenty of room inside the returnless bucket for a larger diameter pump...

Thanks for the comments and i hope this does help someone on a bucket build....Now i know what is involved and can really be dangerous now lol!

 

I would suggest not using worm gear clamps, they make crimp clamps that won't work loose and clamp more securely. Racetronix sells them and you can actually get them at your local Home Depot in the plumbing section.

 

Never too late to change anything! Off to HD i go tomorrow!
Suggestions are and will always be appreciated!!

 

Sorry for the dig...only thread I came up with searching but does this pretty much mean that there is hope after all for 500-600rwhp returnless set ups?

 

Returnless is really not a good name for it.

All fuel systems are return style. The only difference is "return" setups have the regulator near the fuel rail, so you see 2 lines to the tank. "Returnless" setups have the regulator in the tank, so you only see 1 line. The only difference is where the regulator is in the system.

If you can give a manifold reference to a tank regulator it will have the advantages of both styles.

 

Thank you for bringing this up again! Yes, I know there is hope for everyone...I searched as you have done, and with a little support from everyone, got everything working just fine! There is plenty of room in these buckets to put whatever you would like without "hacking" them up...

Enjoy, and let us see the results! Pix go a long way to help everyone in the same boat!

 

Thanks for the write up. I am needing to do the same thing for an 04 Escalade to get it running before pulling the motor for a swap. Good news is I can use the same pump after the swap to go in the 87 sening unit. Have you had any problems since doing this?