Titanium exhaust for 993?
09-24-2003, 09:39 PM
#1
Banned
Thread Starter
Titanium exhaust for 993?
Titanium exhausts are becoming more common in general but is there a titanium muffler for the 993, apart from Robert Linton's piece of art?
The weight saving could amount to 10kg/22 lbs off the rear of the car where it help the most.
Or maybe it's possible to adapt a commercial titanium muffler? Are there any downsides to using titanium?
The weight saving could amount to 10kg/22 lbs off the rear of the car where it help the most.
Or maybe it's possible to adapt a commercial titanium muffler? Are there any downsides to using titanium?
09-25-2003, 09:39 AM
#7
Banned
Thread Starter
I assume that Robert Linton had a good reason for using titanium for the inner pipe of his muffler, and carbon fibre only for the outside. It would be a fun project to replace the outer casing with carbon fibre!
I went into the shop today which was advertising the titanium mufflers. It seems that only the tips are titanium, and the rest is stainless steel - which is pretty much the exact opposite of what I would choose! Titanium tips are not pretty...
I went into the shop today which was advertising the titanium mufflers. It seems that only the tips are titanium, and the rest is stainless steel - which is pretty much the exact opposite of what I would choose! Titanium tips are not pretty...
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09-25-2003, 03:15 PM
#8
I can offer some experience using CF and Titanium exhausts on sport and race motorcycles. I replaced a SS system with a CF can, then went to a full titanium system on my bike. All are very common, and several bikes even come stock with titanium systems.
BTW, Remus is a very respected name and considered one of the best quality aftermarket bike exhaust vendors.
The problem with the CF cans is that the type of CF typically used is not very heat resistant, so if the design of the muffler transmits a lot of heat to the CF skin, it can delaminate or bubble.
Titanium on the other hand is far more heat resistant and is also commonly used on the header pipes. However I have heard that a lot of heat can make it more brittle. I had a minor vibration related crack on a fitting, and can go on at length about the joys of trying to weld titanium in your garage, even with a TIG welder and argon hood.
SS is considered the best material as far as cost and longevity goes, but at the expense of weight.
CF:
lightest, shortest life, expensive
Titanium:
light, decent life, expensive
SS:
heavy, best life, lowest cost.
Graham, titanium can actually look very nice. Heat will give it a rainbow color cast, unlike SS which just yellows. My titanium pipes look much better than the SS ones.
Disclaimer: How any of this applies to cars I will let someone with direct experience say.
BTW, Remus is a very respected name and considered one of the best quality aftermarket bike exhaust vendors.
The problem with the CF cans is that the type of CF typically used is not very heat resistant, so if the design of the muffler transmits a lot of heat to the CF skin, it can delaminate or bubble.
Titanium on the other hand is far more heat resistant and is also commonly used on the header pipes. However I have heard that a lot of heat can make it more brittle. I had a minor vibration related crack on a fitting, and can go on at length about the joys of trying to weld titanium in your garage, even with a TIG welder and argon hood.
SS is considered the best material as far as cost and longevity goes, but at the expense of weight.
CF:
lightest, shortest life, expensive
Titanium:
light, decent life, expensive
SS:
heavy, best life, lowest cost.
Graham, titanium can actually look very nice. Heat will give it a rainbow color cast, unlike SS which just yellows. My titanium pipes look much better than the SS ones.
Disclaimer: How any of this applies to cars I will let someone with direct experience say.
