Mayf,
>From what I have been able to determine by asking questions of knowledgeable
people, that you are not going to have problems if your flanges are fairly
thick and the tubing is 14 gage or heavier. The heat will not cause them to
move around enough to create problems. You might want to try some high
temperature coating to cut down on thermal expansion. Prevent cracking at
welded spots. Cutting the flange down might create more problems than it
solves.
Wes
on 11/26/01 8:55 AM, Rick Hammond at r.hammond@sympatico.ca wrote:
> Mayf,
> Sometimes common sense comes a while after inspiration...
> What about just cutting away some of the flange plate, where most helpful or
> convenient, leaving enough to hold the tubes together, but not enough to
> generate
> the sproing. You could just narrow it or leave 'arches'.
> Hmmm?
> Rick
>
> Rick Hammond wrote:
>
>> DrMayf wrote:
>>
>>> Dinking around with whatever I can sans shop and thought I would ask a
>>> question about the turbo headers. My headers are block hugger type and have
>>> a single piece flange where it bolts to the heads. Turbo headers get hot.
>>> Hot means expansion. So would I be better off cutting the long single flange
>>> plate into four smaller ones with one hole slotted at each port? This would
>>> permit expansion without putting anything into a bind...or would it? Heads
>>> are aludimum. Of course, as soon as I cut them, they will sproing all out of
>>> shape wont they? Murphy's Law or some such.
>>>
>>> mayf, the red necked ignorant desert rat in Pahrump..without a shop...yet
>>>
>>
>> Mayf,
>> The 'sproing' will probably be outwards (??) so what about welding some light
>> gussets between them first to maintain the spread?
>> Cheers,
>> Rick
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