Installing Timevalve SS Exhaust

[Nate]

I'm finally getting around to installing my Timevalve SS exhaust system for my '71 280SL and there are three approaches:

1. Install using the 4 SS clamps
2. Have the entire system welded together
3. Weld the end near the muffler and use the other 3 SS clamps

I'd appreciate hearing feedback on pros and cons of both approaches.  I've been told that Gernold welds all of his and heard from another source that if you go the clamp method the exhaust note is louder.  But I spoke with Mike at Timevalve and he claims that the exhaust note is only slightly louder during idle, and sounds pretty much like OEM at other RPM's.  

Thanks in advance for sharing your thoughts and advice!

Nate

[mdsalemi]

Well, Nate--if Gernold were doing yours, then I'd let him choose.

If you are doing yours, don't attempt welding it unless you are an expert welder and have a lot of experience in fitting exhaust systems.  You need to know your installation is perfect before welding, and you really need skills beyond that of a shade tree mechanic.  I am assuming you are one like many of us, else you would not ask the question.

BTW, for what its worth, my SS Time Valve has been on for about 10 years, with SS clamps, and nobody has complained about the exhaust note.  With the top down there is all kinds of noise, the exhaust not being one I worry about.

I suppose once you have it in and all, and if you happen to find yourself up in Maine one day (or at any of the other extremely skilled mechanics we all know about round these parts), you could have it all welded up.  It will be, in all likelyhood, the last exhaust system your car ever needs.

[IXLR8]

Hi--

I've recently installed a SS exhaust, not a Timevalve one, however. Used the clamps. They allow endless repositioning to avoid chassis clunks, rubs, etc.

I don't know the advantage of welding, but the clamps give you much greater flexibilty in the future if you have to drop the fuel tank, the transmission, or rear axle.

I have had a Timevalve on my R107 for about 12 years, mounted with clamps, and I am very happy with it.


The other Joe

[Jack Jones]

Hi,

I have a Timevalve system on my 107 chassis 280SL using clamps and the biggest advantage I see is the ability to remove/adjust it. The system is excellent and even though I have the ability to weld the system completely, I will also clamp the system when completing my 113 chassis 280SL next summer.

Jack