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Posted by: mtndawg Dec 14 2018, 09:34 AM

I have a 1975 2.0 car that had the original heat exchangers that are being replaced with 1.7 SSI’s. What kind of exhaust are others running with this type in of arrangement? Yes I have a 1.7 hanger.

Posted by: jcd914 Dec 14 2018, 09:44 AM

I have a Triad to go with my 1.7 SSI heat exchangers but I have never run it on the car, the car is still apart. Triad will probably get lots of recommendations here.

Years ago I ran a Bursh with 2.0 SSI's.

Jim

Posted by: Mark Henry Dec 14 2018, 10:05 AM

Anything but the stock 1.7 or 1.8 muffler, Triad would be good.

Another good choice is to send the exchangers to Tangerine, Chris modifies the exchanger outlets and puts on a nice SS muffler. Not as cheap as other options, but it makes for a very nice exhaust.

Posted by: mtndawg Dec 14 2018, 10:23 AM

Good tip, my longer term plan is to send them to tangerine. Right now I’m thinking about a muffler that will bolt on and go for a short term solution.

Posted by: mepstein Dec 14 2018, 10:53 AM

Ben / MB911 might have a SS 4 cylinder muffler available soon.

Posted by: DRPHIL914 Dec 14 2018, 11:59 AM

same for me , I am running the Triad.. I have a 2.0 but the SSHE that I bought were mint, but sold to me 9 years ago, thinking they were 2.0 but were not, but since I only pain $250 I kept them and just put on a matching Triad. No reason to change really, I suppose some day I might go to a set of 2.0 if I got a SS muffler from Ben or from Mr. Foley, but for now the budget said get what you need not what you want lol .

Posted by: rhodyguy Dec 14 2018, 12:11 PM

A used Bursch style is the most affordable option or apply the cost(+ shipping) towards what you want long term. Used (in good condition) 1.7/1.8 stock mufflers are no longer cheap. Absolute cheapest exhaust, not as desireable, would be a 4 tip style. Either way the shipping is money wasted.

Posted by: Olympic 914 Dec 14 2018, 12:36 PM

Another vote for the Triad.

Used the same 1.7 SS HEs I've had for years. its now a 2056

I heard that the 1.7 and 2.0 SS HE are the same dia. pipes. only difference is the bends.

better setup than the Ansa/Monza 4 tip exhaust I used to have on there.

Posted by: mepstein Dec 14 2018, 01:25 PM

“I heard that the 1.7 and 2.0 SS HE are the same dia. pipes. only difference is the bends” - you are correct.

Posted by: mtndawg Dec 14 2018, 02:04 PM

Nice looking setup. Thanks for the photo.

Posted by: dr914@autoatlanta.com Dec 14 2018, 02:22 PM

probably the best value is a Bursch, rbx1413

Posted by: rjames Dec 14 2018, 02:41 PM

While I would love a triad (I think, depending on how loud they are), I went with a Bursch because I found a used one for little $. People complain that they rust out, but my used one is going on 8 years now and it's fine. Who knows how many years were on it before I got it.

Stay away from the 4 tip mufflers. Cheap-yes, but heavy as fuch and LOUD. I had one and got tired very quickly of setting off all the car alarms in the garage at work.

Posted by: Mark Henry Dec 14 2018, 02:46 PM

the outlets sit higher on 1.7/1.8, only differece on the SSI's.



Doesn't matter if they are 1.7 or 2.0 SSI's for the tangerine, you have to send Chris your exchangers, he mods them to fit his muffler.
IIRC his muffler isn't a stock bolt on, the exchangers have to be modified.

Posted by: dr914@autoatlanta.com Dec 14 2018, 02:52 PM

mark is right, although the original 73 74 2.0 heat exhangers had a larger id than the 1.7 1.8, John at Stainless made the 1.7 and the 2.0 id the same as stock 2.0. What I do not like about the stainless steel is that they are noisy due to the thin stainless as compared to the thick factory metal. In the past also the mounting surface at the head was thin and hard to seal, but Dansk made the sealing surface here thicker

Posted by: Triaddave Dec 16 2018, 12:03 AM

OK. As a member asking questions, not as Triad, I need to send my heat exchangers to the east coast to be modified. Shipping there is roughly $70.00. Then to send them back, another $70.00. The new exhaust is "stainless steel" $ cost unknown at this point, +shipping. Where is the BANG FOR THE BUCK ? Are the HE still a sellable item or only fit for the product in question? just asking.

Posted by: n2j2ryan Dec 16 2018, 01:03 AM

I have the exact same set up. 2.0 with 1.7 HE and a beautiful Triad from Dave. The funny thing is I just picked up a 74 parts car with almost new 2.0 Stainless HE.

Posted by: euro911 Dec 16 2018, 03:26 AM

I have a Bursch style exhaust (with flat pack muffler) that you can have for a cheeeeep price. The only issue is that the tail pipe doesn't exit the opening in the stock rear valance, so the tail pipe would need to be relocated (lengthened a few inches to move it to the correct location).

I ran it without a valance for a while, but then I picked up a buggered up valance at a swap meet for $10. and modified it to work.

I can post some pix if you think you may be interested in it

The modified valance is available as well ...

Posted by: Triaddave Dec 16 2018, 01:06 PM

This brings up another question. Is the rear valence just for looks or some other dynamic reason like the wind flaps under the car that are attached to the firewall? Some people think about football on Sundays, I guess I'm not one of those "some people".

Posted by: Mark Henry Dec 16 2018, 07:45 PM

Mostly looks.
For high performance the valance makes things hotter, no big difference with stock-ish.