Retrofit fuel sending unit
Thread Starter
Staging Lane
Joined: Mar 2014
Posts: 50
Likes: 0
Retrofit fuel sending unit Hi everyone im doing a ls swap on a 1962 belair wagon
I want the pump in tank
Id like to use the actual fuel sending unit and hook up the fuel pump at the end or somewhere on it
does anyone had any advice especially with this configuration ?
i dont want buy a gas tank
Thanks
I want the pump in tank
Id like to use the actual fuel sending unit and hook up the fuel pump at the end or somewhere on it
does anyone had any advice especially with this configuration ?
i dont want buy a gas tank
Thanks
Teching In
Joined: Nov 2012
Posts: 12
Likes: 0
I had the same issue you have....1964 Chevelle 9 Passenger Wagon. Tank is a unicorn (less than 1500 of these cars made I think....try to find a tank for that). I looked into trying to set up something in tank through stock hole...even sent my sending unit to someone who said they could set it up. Didn't work out. I looked into a custom tank....very expensive, so I ended up cutting into unicorn tank and welding in a recessed area where I installed a PA in tank pump kit that I got from Tanks Inc. Now Holley came out with Mat that you put in the bottom of the tank that sucks all the fuel out of the tank. That might work to install through original sender hole. The problem is if you just put pump and pickup on original sender and pick up tube you will not have a sump. When you are even a little low on fuel the pump will suck air and car will die. Also you need a bigger fuel line, gernerally a 3/8" line. Anyways I hope that helps. I wish I had a picture of the tank when I welded in recessed area, but basically I just cut out a rectangular area in the top of the tank over the deepest spot on the tank...maybe 3/4" recess so that the PA unit and lines would be even with top of tank and not hit floor of car.
I've tried the pump on a stick method; it isn't an optimal solution, and your proposal is even worse.
what is the height of your tank? a 5th-gen Camaro in-tank unit is cheap (~$125) and works with something like 5.5-7.5" height tanks. Vaporworx can set you up with the regulator and pigtail harness (if you need it). You will need a small recess welded to your tank, which will require it to be boiled before modification, as well as a retainer ring for the pump. Vaporworx sells one, or you can hit the junkyard like this guy (and I) did. Many late-model GM vehicles use the same ring - mine was out of a 2010 HHR, for example.
what is the height of your tank? a 5th-gen Camaro in-tank unit is cheap (~$125) and works with something like 5.5-7.5" height tanks. Vaporworx can set you up with the regulator and pigtail harness (if you need it). You will need a small recess welded to your tank, which will require it to be boiled before modification, as well as a retainer ring for the pump. Vaporworx sells one, or you can hit the junkyard like this guy (and I) did. Many late-model GM vehicles use the same ring - mine was out of a 2010 HHR, for example.
I used the whole fuel pump module out of a Tahoe in my '59 wagon. It works great, since there is no baffle in the stock tank the fuel pump being in the fuel bucket keeps you from having any starvation issues. Starts at post #94 https://ls1tech.com/forums/conversio...r-wagon-5.html
Thread Starter
Staging Lane
Joined: Mar 2014
Posts: 50
Likes: 0
I used the whole fuel pump module out of a Tahoe in my '59 wagon. It works great, since there is no baffle in the stock tank the fuel pump being in the fuel bucket keeps you from having any starvation issues. Starts at post #94 https://ls1tech.com/forums/conversio...r-wagon-5.html
and now im thinking using retrofit in my gas tank the pump from this truck
Do you think i should ? I think those pump has a regulator build in or something they look different from the top
Fuel bucket is the way to go if you can get it to fit. I have the 1998-2002 f body Ls1 bucket, fully compressed it barely fits with a 2" recess built and welded on top of tank. I am not using any additional FP regulator, just the one built in.
You could shorten the Silverado bucket I'm sure to gain a few inches. You'd need to cut and reflare the metal rods in addition to trimming plastic. The bucket works great, no baffle needed. Biggest issue is cutting into a used tank, be safe!
You could shorten the Silverado bucket I'm sure to gain a few inches. You'd need to cut and reflare the metal rods in addition to trimming plastic. The bucket works great, no baffle needed. Biggest issue is cutting into a used tank, be safe!
Last edited by reedld; Nov 18, 2017 at 02:09 PM.
Thread Starter
Staging Lane
Joined: Mar 2014
Posts: 50
Likes: 0
Fuel bucket is the way to go if you can get it to fit. I have the 1998-2002 f body Ls1 bucket, fully compressed it barely fits with a 2" recess built and welded on top of tank. I am not using any additional FP regulator, just the one built in.
You could shorten the Silverado bucket I'm sure to gain a few inches. You'd need to cut and reflare the metal rods in addition to trimming plastic. The bucket works great, no baffle needed. Biggest issue is cutting into a used tank, be safe!
You could shorten the Silverado bucket I'm sure to gain a few inches. You'd need to cut and reflare the metal rods in addition to trimming plastic. The bucket works great, no baffle needed. Biggest issue is cutting into a used tank, be safe!
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Your guage is either 0-30 ohm or 0-90 ohm like mine. I'm using the 0-90 ohm because I didn't feel like buying new guage...which would need to be 240-33 ohm. I had to bend OEM arm a bit to work with bucket.
Last edited by reedld; Nov 18, 2017 at 08:37 PM.
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Verdad Gallardo I dont think a pump out of a truck will work, they're way too tall and I couldn't cut one down enough to use in my 59 wagon, thats why I went with a Tahoe pump, the tanks in them are much shalllower. As for the gauge, im using the factory one for that.
9 Second Club
Joined: Nov 2003
Posts: 13,616
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From: Norn Iron
If you need to adapt a senders resistance range to suit another gauge.
https://www.spiyda.com/magento/index...izard-mk3.html
This is the UK inventor of the product, although I have seen a US copy of it.
https://www.spiyda.com/magento/index...izard-mk3.html
This is the UK inventor of the product, although I have seen a US copy of it.
Hi everyone im doing a ls swap on a 1962 belair wagon
I want the pump in tank
Id like to use the actual fuel sending unit and hook up the fuel pump at the end or somewhere on it
does anyone had any advice especially with this configuration ?
i dont want buy a gas tank
Thanks
I want the pump in tank
Id like to use the actual fuel sending unit and hook up the fuel pump at the end or somewhere on it
does anyone had any advice especially with this configuration ?
i dont want buy a gas tank
Thanks
I put a pump on the stock hanger when i did the 5.3 swap in my 72 Chevelle wagon...I used a AC-Delco EP 381 pump on the factory hanger...
It's a little bit of work, but it's cost effective, works very well.
Not sure what your tank depth is but these setups work from 6" to 14" and no sump is needed.
http://fitechefi.com/products/40019/
http://fitechefi.com/products/40019/
Here is another retro fit, I like the idea of the tray but not sure if the PA 6 will really support up to 1000hp in a FI setup
http://www.tanksinc.com/index.cfm/pa...prod/prd84.htm
http://www.tanksinc.com/index.cfm/pa...prod/prd84.htm
Not sure what your tank depth is but these setups work from 6" to 14" and no sump is needed.
http://fitechefi.com/products/40019/
http://fitechefi.com/products/40019/
No offense, that tanks inc small tiny tray is a joke. No way it works for any long period of time. The pump is not submersed for cooling and quietness.
The stock GM bucket solves a lot of issues. Pump is always always always submersed in fuel. Pump is super quiet, cool. Bucket has a series of check ball vales that prevent pump from sucking air. Bucket also prevents the need for any tank baffle. I've read lots of swaps where people have starvation issues...hesitation, always filling up at 1/2 tank, etc.
Thread Starter
Staging Lane
Joined: Mar 2014
Posts: 50
Likes: 0
My 62 wagon gas tank is 22 inch tall by 6.5 width
Thread Starter
Staging Lane
Joined: Mar 2014
Posts: 50
Likes: 0