Bursch exhaust questions

[914zim]

Hey guys:
A Bursch exhaust came with my pile-o-parts with my car.
It says 914 73-74 on the sticker, but it doesn't look like it'll
fit my car (76). It's got 2 inlets on each side and there is only 1
outlet on each side on my car.
It looks like a really good setup that would look cool on my
car, but I'm not sure I could make it work. Any ideas??
My current setup has a resonator and a muffler and it looks
like crap (rusty). The Bursch setup only has 1 muffler (I think).
I'm also wondering what emissions issues one might have with
this arrangement if I could put it on my car.
Any info on this would be appreciated.
Thanks!!

[M. Hendrix]

You'd have to change over to an early style heat exchanger setup, or go with headers.

Honestly, you should change over to the early style if you don't have special emissions to deal with, it opens up more possibilities than just the Bursch, and it looks like you could use the heat.


M

[Dave at Pelican Parts]

Passing emissions depends on what kinds of standards you have to meet. If they have a visual inspection and require the catalytic converter and/or EGR to be in place, the older-style exhaust will not pass. If the emissions numbers they allow are noticeably lower for your 76 than for the 74, there's a good chance you will not pass the "sniffer" test by using the older-style exhaust.



Note that, if you change over, you will make a little more power. You will need the 73-74 2.0 style heat exchangers, that Bursch muffler you have, and the 73-74 2.0 muffer hanger. Plus, if you want heat you will need the pre-75 heater hardware; almost none of the 75-76 stuff interchanges with the earlier heater hardware.

--DD

[914zim]

Thanks for the replies guys...
from other BB...

"Make sure which Bursch you have. If it just says "73-74", it is probably for 1.7-1.8 HEs. The 2 litre exhaust usually has a sticker that says, "73-74 2.0"....

Aw CRAP!
I just did a double check and it does NOT say 2.0L anywhere on the sticker. Does this mean that I can't even use this even if I changed to the earlier HEs? Man, that would suck!!
Thanks again guys.

[Dave at Pelican Parts]

Well, you could if you switched to 1.7/early 1.8 stuff... I'm not sure how you tell the difference on a Bursch, though.

--DD

[Ron Meier]

The 1.7/1.8 has a smaller diameter pipe than the '73-'74 2.0. There is a definte pitch up in the pipes near the ends on the 1.7/1.8. I beleieve there is also a slight difference in the flanges. If you want I can measure the pipe diameters and shoot the flange end of the HEs and post them. Might help - won't hurt

[Dave at Pelican Parts]

Hmm... The muffler flanges should be a different distance apart on the 2.0 than on the 1.7/early 1.8 as well. I don't recall which is larger or smaller, but they are different. (As Apoplexy found out when she tried to fit my 2.0 Bursch onto her 1.7 exchangers.)

--DD