[Tigers] Carburetor input

Terry Lawell tlawell at austin.rr.com
Wed Apr 21 19:35:22 MDT 2021


Thanks for the inputs. The volume on this pump is 38 gal/hr and I think 
the standard su is about 28gal/hr, so that should not be a problem. I 
will probably install a good regulator and set the psi to about 5psi.
On 4/21/21, 4:54 PM, H B Elam via Tigers wrote:
> Have used both Holly and parts store standard. My problem had been fuel boil over after returning to garage. It seemed that the boil over defeated the float valve and emptied that float chambers. I solved the problem with heat spacers from a guy out of Pittsburgh.
>
> Regards,
> Harry
>
>> On Apr 21, 2021, at 5:48 PM, Gary <garywinblad at comcast.net> wrote:
>>
>> Harry,
>> What kind of check valves?
>> Photos?
>> Thanks,
>> Gary
>>
>>
>> Sent from my iPhone
>>
>>> On Apr 21, 2021, at 2:09 PM, H B Elam via Tigers <tigers at autox.team.net> wrote:
>>>
>>> Hi all!
>>> I have had elex fuel pump problems since 1964 & an MGA. In my Tiger I have two pumps piped in parallel. There is no shifting valve as both have check valves. I only shift them electrically. The stock SU idles at 3.5 psi and the aftermarket at 4.2 psi. While I really can not notice any performance change I only use the aftermarket for troubles or autocrossing. The issue is not the carb but the float valve. My research indicated that most float valves are good for 7 psi.
>>>
>>> Harry Elam
>>> B382000471
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