Gas Tanks

Welcome!

By registering with us, you'll be able to discuss, share and private message with other members of our community.

SignUp Now!

texasterror

Member
Joined
Aug 7, 2007
Messages
255
I've been reading about gas tanks because I need to purchase one, between the goodman and the spectra, anyone think one is better than the other. I cant find an original GM one but then again I don't know how much better a GM gas tank is than an after market. I've been reading the old threads and so far there are few complaints with the aftermarket tanks so now its a matter of choosing between the spectra and good man (unless someone has a better suggestion).
 
I'd put a fuel pump in while you have it apart.
 
Chuck Leeper, Dana Wyatt and I all bought a Spectra 307C from Bob's on eBay. The price is down to like $98 shipped.

It's nice and has the baffling.

http://ebay.to/1wmy9a3

Is that tank galvanized on the inside ? Because that would make it not compatible with E85 if anyone was planning on using that fuel .
 
I would hope that they don't galvanize them. GM used a 'terne' coating on the inside, which is a mix of tin & lead. Did that for fuel lines for quite a while. Someplace along the lines of switching to EFI they stopped coating the inside of the fuel lines.

Not sure if it was the entire product line, but I do know that some vehicles have raw steel on the interior of the lines. Easy to tell from the rust, clogs the injector baskets too...

RemoveBeforeFlight
 
I bought a Spectra in December. I wanted to powder coat the tank with a clear, but I discovered the neck is soldered in place. The solder won't survive the oven.
I wanted to be sure the tank won't rust, so I degreased it and waxed it with a good paste wax. I installed a new Racetronix tank unit and new stainless steel and rubber lines.
 
I have a spectra I bought from Rock Auto and while it fits well, the tank doesn't take fuel worth a damn. I may have a separate problem but I figured this would be a good thread to chime in on.
 
I also used the bobs 307c tank it was less than 100 bucks shipped no problems yet we will see.
 

That is an interesting list of compatible and incompatible materials. I do have to question it though, it lists "unplated steel" as compatible with E85. Riiiight, right up until it is rusting like crazy. There is a whole bunch of folks here running E85 with stock gas tanks.

On a side note, this may be a reason that GM (and others) went to plastic fuel lines and gas tanks.

RemoveBeforeFlight
 
I do have to question it though, it lists "unplated steel" as compatible with E85

I think what was meant was non reactive with those materials in its "pure " state , now add some water (condensation) and you have a problem in the form of rust. Those tanks from Bob's were listed as galvanized . Are they coated after assembly or single sided galvanized sheet metal used ? That's why I questioned those tanks.
 
I think what was meant was non reactive with those materials in its "pure " state , now add some water (condensation) and you have a problem in the form of rust. Those tanks from Bob's were listed as galvanized . Are they coated after assembly or single sided galvanized sheet metal used ? That's why I questioned those tanks.

Most likely they are referring to the outside of the tank:

"Surface Finish: OEM Zinc Galvanized"

RemoveBeforeFlight
 
Back
Top