Go Back   VetteMOD.com > Off Topic (No PR&C) > Help Section

Reply
 
Thread Tools
  #1  
Old 10-16-2014, 10:14 PM
rod70's Avatar
rod70 rod70 is offline
Canada | Member
 
Join Date: Jan 2013
Location: Niagara, ON
Posts: 53
My Photos: (40)
Default In Tank Pumps

I'm putting a LS into my '70 C3. This requires an electric fuel pump. From what I've read so far, it is better to have the pump in the tank rather than surface mounted on the frame for reasons of noise and additionally keeping the pump cool while running.

'Tanks' sells a nifty Walbro universal conversion unit that appears to do this with moderate changes to the tank. 'Fast' also has a system that seems to require more work to install. Has anyone any previous experience with this situation for top/body clearances or have other knowledge that I should know about.
Reply With Quote
  #2  
Old 10-17-2014, 01:12 PM
mrvette's Avatar
mrvette mrvette is offline
United States | Phantom of the Opera
 
Join Date: Mar 2008
Location: NE Florida
Posts: 15,306
My Photos: (3)
Default

I have had a ~2" diameter ~5" long pump wrapped in some radiator hose and using a hose clamp, it is tied to the rear frame cross support under the tank in my '72, if I run the thing with engine off, yeh, you can hear it, but with engine ON, hell no, not even close....I have a 355 roller engine, with LT1 induction and it runs ~40 lbs pressure....

__________________
"Hell, there are no rules here ... we're trying to accomplish something." Thomas Edison
I have a little list, let ALL of them be MIST......
Reply With Quote
  #3  
Old 10-17-2014, 08:27 PM
rod70's Avatar
rod70 rod70 is offline
Canada | Member
 
Join Date: Jan 2013
Location: Niagara, ON
Posts: 53
My Photos: (40)
Default

OK, thanks for that. It is hard to see between the lines on the advertisements.
Reply With Quote
  #4  
Old 10-18-2014, 01:02 AM
mrvette's Avatar
mrvette mrvette is offline
United States | Phantom of the Opera
 
Join Date: Mar 2008
Location: NE Florida
Posts: 15,306
My Photos: (3)
Default

Quote:
Originally Posted by rod70 View Post
OK, thanks for that. It is hard to see between the lines on the advertisements.
The pump came from a local Auto Zone, with input on one end, and electric connections on the other, along with output I want to say it was Walbro, but it's been something over a decade now....sorry man, no remember....

But the trick is, when tank gets lo, the pump runs dry and engine stumbles/dies in quick corners.....I finally put a 5 gallon tank forward and below the stock tank.....one of them 5 gallon steel airtanks from Harbor Freight, NOW I can corner like a bandit on a 'empty' tank and never kill engine.....I cheat, I know....but my cost was like 30 bux some years ago....today figger 60 bux....plus some work, of course....

PM if need help....

Reply With Quote
  #5  
Old 10-18-2014, 01:22 AM
rod70's Avatar
rod70 rod70 is offline
Canada | Member
 
Join Date: Jan 2013
Location: Niagara, ON
Posts: 53
My Photos: (40)
Default

Thanks again.
Reply With Quote
  #6  
Old 12-17-2014, 04:31 AM
68/70Vette 68/70Vette is offline
United States | Addict
 
Join Date: Jun 2008
Location: Torrance, Ca.USA
Posts: 1,053
My Photos: (0)
Default

First of all, get in contact with Aeromotiveinc.com. They sell fuel pumps for modern applications. They're service department can talk about the pump you need for the LS.

You have a 70 fuel tank?......get rid of it. Buy a new Quanta factory duplicate fuel tank for a little over $200. With a new dry fuel tank, you can find someone to weld in capability for an in-tank pump with no hassle about fuel fumes.

My 70 tank looked just find. I removed it anyhow, and the stress of removing i caused it to be a leaker. Corrosion had reduced the body walls in some places to the thickness of paper. In the stress of twisting and pushing/pulling to get it out, the walls ruptured. 44 year old fuel tank??? Get rid of it.
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT. The time now is 04:33 PM.
 


Design by: vBulletin Skins Zone
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.