Builds Fly By Night (3 Viewers)

[RUSH55]

Mocked the tank up and measured out where the mounts will go.

 

[RUSH55]

Got the holes for the drain and fill cut out. Fully welded the sides and put some stitch welds along the inside.
Forgot how much I loved TIG welding!

Next will be baffles. Not completely set on how those should be best designed for this application. Was thinking at least one or possibly two set laterally, and possibly one or two running lengthwise. I’ve seen some people build a cup around where the pickup would go, anyone think it a good idea to build a baffle around the perimeter of the mat/filter sock?

 

[scrapdaddy]

Doing a good job.

 

[sneaky]

The fuel tank of my track car has a cup around the pick up, I figure being off camber or on an incline would be similar to braking or cornering on a track, if not worse as the direction change may take longer.

 

[RUSH55]

Right, that’s my concern as well - a long climb or being stopped on an incline for any amount of time with 1/4 tank (nearly 10 gallons). Maybe not a huge deal

 

[RUSH55]

Doing a good job.

Thanks Ron

 

[Megadoomer]

That is why I have the hydramat now. Your tank isn't completely flat but probably not angled enough to always have fuel.

 

[Ol Yeller]

The fuel tank of my track car has a cup around the pick up, I figure being off camber or on an incline would be similar to braking or cornering on a track, if not worse as the direction change may take longer.

Right, that’s my concern as well - a long climb or being stopped on an incline for any amount of time with 1/4 tank (nearly 10 gallons). Maybe not a huge deal

That is why I have the hydramat now. Your tank isn't completely flat but probably not angled enough to always have fuel.

I haven’t personally used it yet, but the hydromat has changed how tanks can be designed, no need for “cup” around pu anymore, probably better without it even

 

[sneaky]

Hydramat is a new one to me! That would solve lots of issues

 

[J Mack]

a long climb or being stopped on an incline for any amount of time with 1/4 tank (nearly 10 gallons). Maybe not a huge deal

That is why I have the hydramat now.

That big flat bottom with a single pickup somewhere around the middle will run you out of fuel on a long climb and 1/4 tank of fuel, I redid my tank after my first outing.

Hydromat for the win!

 

[scrapdaddy]

I redid my tank after my first outing.

J Mack, did you redo the tank or just add the hydromat?

 

[J Mack]

J Mack, did you redo the tank or just add the hydromat?

It was a fairly new product when I looked at it and the big “Not for use with diesel fuels” warnings at the bottom had concerned me at the time so I went with three Walbro pickups.

I now know that the diesel fuel warning has to do with gelled fuel in cold climate and it will affect the Walbro’s the exact same way if you don’t do something to address gelling. I would most likely switch to a Hydromat if I needed to get back in that tank for any reason, I haven’t had any issues with the Walbro’s but the Hydramat hast less connections to potentially fail and will cover more area.

 

[J Mack]

This is the pickups.

The float gave me issues right away so I switched to this pickup.

 

[RUSH55]

Something of note regarding the LS cam bearings.

1997 - mid 2003 (early block) 2.326” cam housing bore

Late 2003 - 2019 (late block) 2.346” cam housing bore

Later blocks used 3 different cam bearings
Not certain yet about early blocks

 

[Megadoomer]

03 with DBW. Does it have a fuel return? It sounds like you got a late 2003 so it has the bigger cam bearings. Bigger outside diameter but the same inside to receive any cam. Do yourself a favor and just rebuild it. I didnt plan on doing it in the beginning but I feel better now that I did.

I noted this for you already on your thread, silly.

 

[J Mack]

I noted this for you already on your thread, silly.

Is it a pump or box?

 

[scrapdaddy]

Cam pulley?

 

[J Mack]

Cam pulley?

Auto Performance Engineering - Walbro fuel pick-ups

High performance Walbro fuel pump sales and more by Auto Performance Engineering. Since 1997, APE has been THE place to find a Walbro fuel pump!

www.autoperformanceengineering.com

 

[RUSH55]

I noted this for you already on your thread, silly.

I can’t be expected to remember every tidbit you guys throw at me. That was like a month ago. I only retain that kind of trivial info when it’s pertinent NOW. But hey, thanks

 

[RUSH55]

I can’t be expected to remember every tidbit you guys throw at me.

Unless of course it’s JMac talking, then I have to listen attentively like a 5th grader at a Catholic prep school hoping not to get my knuckles smacked with a ruler.