fuel cell or convert tank..or what?

[sclay115]

what is the cheaper/better route? i have a 72, carb'ed, looking to go injected, should i send my tank out to get a pickup brazed to the bottom? or is that even how they do it? should i get a later tank, risk the rust and use that? or just go with a cell, make up some brackets, and go that way? i can't figure out which is cheaper only because i'm not sure how much it would be to modify a tank for FI...btw, i'm not really concerned about originality, the car is far from stock already...

steve

[sclay115]

after doing a bit of research on google, i've seen setups using the stock carb'ed tank with an aluminum surge tank that uses a low pressure pump to load the tank, then a high pressure pump to pump it to the rail, anyone ever seen this? it seems sort of like a band aid fix, but just wanted to see if anyone has any experience with it...

here is a link http://www.sdsefi.com/techsurge.htm

steve

[jmortensen]

Surge tank isn't a bandaid. Lots of race cars use them. Lots of FI fuel cells have surge tanks built into them. It's a good idea and a cheap way to run injection without having fuel starvation issues whether you have a FI tank or not.

[sclay115]

i had just not seen many people use this route when converting...that's all. but it would absolutely be able to handle a high fuel load right? that's my only concern, and does the surge tank need to be a certain size depending on what sort of fueling you need? this is all a new thing to me, and sounds like a good option, since i wouldn't have to modify where my fuel tank is and how it operates.....

steve

[jmortensen]

I suppose the bigger the tank the more reliable it would be, but if you think about it the surge tank on your Z when it had SU's was the float bowls in the carbs. They can't hold much more than a couple ounces. I'd just make it big enough to comfortably put the fittings on. Probably in the 16 oz range or so, and that would be more than enough fuel to ensure that it didn't starve.