So, fixing to get the exhaust done on dads 49 ford truck. Exhaust is from reds headers and is beautiful.
Its also 1.75 outside diameter.
Its expanded for a slip fit at the various junctions. We want to do band clamps instead of the u bolt crush style.
But i cant seem to find them in this size and style.
Since yall are able to find anything, i figured id ask.
Like one of these? Or do you need one of the wider lap joint clamps?
In reply to boxedfox (Forum Supporter) :
We actually need the wider lap joint clamps due to the way the pipes are made.
Motorcycle guys have these
JP Cycles had these but Dennis Kirk and Revzilla may offer others you prefer
If I understand you are looking for 1 3/4 to expanded 1 3/4 band clamp. This is a English company but seems to have what you might be looking for: https://www.profusionexhausts.com/components/clamps/. You might try contacting them to see if they have distributors in US.
In reply to pirate :
I owe you a sammich. Exactly what I need. I emailed them to see if they do international shipping or have an American distributor.
I'm very surprised summit racing doesn't have that! (I haven't checked myself, but I assume someone here already has).
In reply to Robbie (Forum Supporter) :
We looked on Amazon, summit, jegs, ebay, walker, napa, and google. Pirate found that one. Only one ive seen listed anywhere. I have no idea what he searched to get there, but im glad he did.
In reply to Robbie (Forum Supporter) :
I was surprised too. Then again it is a pretty small size for that kind of clamp. Normally those lap band clamps for exhaust piping that's at least 2" in diameter.
So, no response from the British folks. Back to the hunt!
Must it step? Can you make this work? (Use pn to buy from a non E36 M3ty supplier)
Go to Home Depot and pick up a 1.5" mission plumbing clamp. They are the kind with the stainless steel smooth band, and the rubber gasket on the inside. Not the corrugated metal clamps. Loose the rubber and use just the stainless steel clamp. Been using these on all of my cars for over 30 years. Trick is to expand one pipe so that the other fits inside it, then clamp them together. Makes taking them apart a snap.
In reply to Dusterbd13-michael :
If you're not going to use the slip joints can the pipes be cut so that you don't need a dual diameter clamp?
these are what ee are working with
Well here is another source for the same clamp: https://www.qofficial.com/index.php?main_page=product_info&products_id=469029 Not sure where it is at. Might try a search for a "45mm overlap exhaust band clam" Possible the company you tried to contact is shut down in the same position as most American companies are right now with this corona virus. I would try to give them a phone call and see if someone answers or there is a recorded message as to their status.
Here is a phone number for Profusion Exhaust: +44 1753 686878 keep in mind depending where you are in the US there may be a four to six hour time difference.
From painful experience, if you use that type of clamp you should still tack weld the two pipes together in at least two spots, then grind the tacks flush so the clamp can clamp properly.
That style of clamp is designed to be able to stretch when you tighten it down, as a sealing method. It doesn't squeeze the two pipes together. The downside is that normal exhaust flexing and vibrating will allow the two pipes to wallow the clamp out and it will get loose. If you tack the two pipes together, there is no more relative motion and the clamp stays airtight.
I have used these band type clamps in several applications and have never had them come apart. That's not to say they won't in the future and a couple tack weld certainly wouldn't hurt. I will say these type clamps absolutely require the ends of the pipes be deburred and round with no egg shape. They also require the two pipes to be in a straight alignment. The clamps will not hold well or seal properly if there is any angle between the two pipes.
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