Why does the exhaust...
Discussion
Mine is a left hand drive with the exhaust on the left. http://24.74.16.56/other%20mods.asp
But I ordered it that way
John
94 S4
>> Edited by techspy on Friday 20th August 03:52
But I ordered it that way
John
94 S4
>> Edited by techspy on Friday 20th August 03:52
Hi,
Interesting observation, I never noticed it. I really have no idea, but wouldn't be surprised if it had something to do with preventing exhaust fumes from migrating forward along the boundary layer and affecting the driver.
Such phenomenon are known to occur along the skin of high speed aircraft underneath the laminar flow layers of air, although it is usually mitigated through design elements in the design phase, but drag reduction, rather than asphyxiation was the concern here. It was also a problem for the 240Z cars in the early '70's. You had to be certain you had good rear weatherproofing to prevent similar problems, Datsun had several service bulletins issued to alert drivers of the dangers.
Having said that, it also wouldn't surprise me if it is just coincidence or some simpler explanation like lowering the sound level to the driver so engine sounds can be better monitored. But as I say, I truly have no idea. Happy Motoring! ...Jim'85TE
>> Edited by lotusguy on Friday 20th August 05:45
Interesting observation, I never noticed it. I really have no idea, but wouldn't be surprised if it had something to do with preventing exhaust fumes from migrating forward along the boundary layer and affecting the driver.
Such phenomenon are known to occur along the skin of high speed aircraft underneath the laminar flow layers of air, although it is usually mitigated through design elements in the design phase, but drag reduction, rather than asphyxiation was the concern here. It was also a problem for the 240Z cars in the early '70's. You had to be certain you had good rear weatherproofing to prevent similar problems, Datsun had several service bulletins issued to alert drivers of the dangers.
Having said that, it also wouldn't surprise me if it is just coincidence or some simpler explanation like lowering the sound level to the driver so engine sounds can be better monitored. But as I say, I truly have no idea. Happy Motoring! ...Jim'85TE
>> Edited by lotusguy on Friday 20th August 05:45
I always thought that the exit was on the right in the UK allowing a single pass from the left hand side (manifold) across the silencer through to the tips.
Thus I assumed when noise regulations got tougher here in the mid 90s (and presumably in overseas markets where they were tougher beforehand) the exhaust was turned 180' for a second pass through the silencer and exit on the left. Mines a 98 with a double-pass left exit.
Thus I assumed when noise regulations got tougher here in the mid 90s (and presumably in overseas markets where they were tougher beforehand) the exhaust was turned 180' for a second pass through the silencer and exit on the left. Mines a 98 with a double-pass left exit.
My '89 SE exits left but have seen '89's exiting right too. Most of the sports exhausts exit right,so i'm expecting to alter my valence should i get one.
As i want to lose the cat, a thought i had was to get a custom exhaust made that is still L/H exit but with a silencer where the cat is now. This would be a very short pipe though and i'm unsure of the technical aspects involved...
I'm guessing she won't breathe too good
As i want to lose the cat, a thought i had was to get a custom exhaust made that is still L/H exit but with a silencer where the cat is now. This would be a very short pipe though and i'm unsure of the technical aspects involved...
I'm guessing she won't breathe too good
Hi All,
This is one of the many Lotus mysteries ... there are RHD cars with left and also LHD cars with right and left side exhausts around ...
Maybe they had left and right exhaust in stock and just had to use up their stock exhaust .... ;o) ?
Cheers
Marcus (www.PUKesprit.de)
This is one of the many Lotus mysteries ... there are RHD cars with left and also LHD cars with right and left side exhausts around ...
Maybe they had left and right exhaust in stock and just had to use up their stock exhaust .... ;o) ?
Cheers
Marcus (www.PUKesprit.de)
Gassing Station | Esprit | Top of Page | What's New | My Stuff