muffler dimensions, diferences between 2.0 and 1.7/1.8 |
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muffler dimensions, diferences between 2.0 and 1.7/1.8 |
jimkelly |
Dec 20 2007, 08:17 AM
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#1
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
see pic
Attached image(s) |
TeenerTim |
Dec 20 2007, 08:57 AM
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#2
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Senior Member Group: Members Posts: 597 Joined: 22-October 07 From: Norfolk,VA Member No.: 8,253 Region Association: MidAtlantic Region |
Are there any differences in the inside diameters of the pipes?
Do the SSI heat exchangers really have a larger ID as some have suggested? Good info BTW. |
flippa |
Dec 20 2007, 10:01 AM
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#3
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Advanced Member Group: Members Posts: 3,177 Joined: 7-May 07 From: Boston, MA Member No.: 7,720 Region Association: North East States |
Nice work Jim!
I appologize in advance if this is a total newbie question. I am going to put a 2.0 in my car, but the entire exhaust system is junk. I have a set of SSI heat exchangers and decent monza muffler which is currently on a 1.7 engine. Will the heat exchangers fit on the 2.0? If so, which muffler would have to be used, a 1.7 or a 2.0? Is the difference in width caused by the engine or by a different shape of the heat exchangers? If the system does in fact fit, would I be restricting the exhaust flow too much by using the 1.7 system? I would like to reuse the exhaust system I have if I can as the money could be better spent on other parts of the restoration. Thanks Larry |
TeenerTim |
Dec 20 2007, 10:44 AM
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#4
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Senior Member Group: Members Posts: 597 Joined: 22-October 07 From: Norfolk,VA Member No.: 8,253 Region Association: MidAtlantic Region |
Nice work Jim! I appologize in advance if this is a total newbie question. I am going to put a 2.0 in my car, but the entire exhaust system is junk. I have a set of SSI heat exchangers and decent monza muffler which is currently on a 1.7 engine. Will the heat exchangers fit on the 2.0? If so, which muffler would have to be used, a 1.7 or a 2.0? Is the difference in width caused by the engine or by a different shape of the heat exchangers? If the system does in fact fit, would I be restricting the exhaust flow too much by using the 1.7 system? I would like to reuse the exhaust system I have if I can as the money could be better spent on other parts of the restoration. Thanks Larry Based on the above diagram you need to run the 2.0 muffler with the 2.0 pipes and the 1.7 muffler with the 1.7 pipes. |
flippa |
Dec 20 2007, 11:38 AM
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#5
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Advanced Member Group: Members Posts: 3,177 Joined: 7-May 07 From: Boston, MA Member No.: 7,720 Region Association: North East States |
Tim, you are missing the point of my question. Jim clearly shows on his diagram that the bolt pattern on the 1.7/1.8 muffler is approximately 1.5" wider than the 2.0.
Maybe I should clarify my question. Is the difference in width due to the shape of the heat exchangers or the distance between the exhaust ports on the engine itself? If I hang the 1.7 SSI's on my 2.0 (if they even fit) what would be the distance between the bolt holes on the flanges? The reason I am asking is because I have never tried to mix & match exhaust systems from different engines before. I'm sure someone out here has attempted to do this, so I figured I would ask before I bother to try it and find out on my own that it does not work. It wouldn't be too difficult to modify the flanges on the muffler if the bolt pattern is slightly off, but why even try if someone definitively knows that it won't work & I would be wasting my time. Will the HEs fit, and if so, which muffler would have to be used? |
r_towle |
Dec 20 2007, 12:21 PM
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#6
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Custom Member Group: Members Posts: 24,577 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
The HE's bolt right up.
Gotta use the same system front to back. Same size pipe internally from 1.7 to 2.0 liter. Rich |
Cevan |
Dec 20 2007, 12:55 PM
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#7
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Senior Member Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 |
Aren't the exhaust systems the same for '75-76 cars? I've seen mufflers for sale that indicate they fit both 2.0 and 1.8 motors.
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flippa |
Dec 20 2007, 01:04 PM
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#8
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Advanced Member Group: Members Posts: 3,177 Joined: 7-May 07 From: Boston, MA Member No.: 7,720 Region Association: North East States |
Thanks Rich, that was the information I was looking for.
It would have sucked having to purchase a new exhaust system since I have a perfectly good one on the car now. |
r_towle |
Dec 20 2007, 01:20 PM
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#9
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Custom Member Group: Members Posts: 24,577 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Thanks Rich, that was the information I was looking for. It would have sucked having to purchase a new exhaust system since I have a perfectly good one on the car now. I did not realise you are in MA. Drop on by some day, I have all three systems, 1.7, 2.0, and 1.8 Rich |
r_towle |
Dec 20 2007, 01:21 PM
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#10
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Custom Member Group: Members Posts: 24,577 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
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jimkelly |
Dec 20 2007, 02:56 PM
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#11
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
yes - the wall is thinner - thus the ID is larger - but I do not have a steel he to measure - I can tell you the ID on sshe is 37.37mm x 31.84mm on the set that i have. jim
Are there any differences in the inside diameters of the pipes? Do the SSI heat exchangers really have a larger ID as some have suggested? Good info BTW. Attached image(s) |
flippa |
Dec 20 2007, 03:19 PM
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#12
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Advanced Member Group: Members Posts: 3,177 Joined: 7-May 07 From: Boston, MA Member No.: 7,720 Region Association: North East States |
I guess that this is an East Coast only thread (DE, VA & MA). Any comments from you West Coast guys????
I will take a measurement of the ID of the steel HE's when I get around to removing them in the next week or so. The parts car is sitting in the shop, but I won't start disassembly until after Christmas (IMG:style_emoticons/default/santa_smiley.gif). Rich, I will give you a yell when I plan on stopping by. Send me a picture of how much of the front fender you need for your project, I will cut it off while I am chopping up the car. |
jimkelly |
Dec 20 2007, 03:30 PM
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#13
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
no - the muffler for 1975/76 he's is a three bolt rounded style - jim
see this pic http://www.914world.com/bbs2/uploads/post-...-1198329115.jpg -- |
Gint |
Dec 20 2007, 03:47 PM
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#14
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Mike Ginter Group: Admin Posts: 16,075 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
The HE's bolt right up. Gotta use the same system front to back. Same size pipe internally from 1.7 to 2.0 liter. Rich Clarification. The inside diameter of the SSI 1.7/1.8 and 2.0 units are the same. But the ID of the stock steel HE's are in fact different. The stock steel 2.0 HE ID is larger than the stock steel 1.7/1.8 units. |
jimkelly |
Dec 20 2007, 04:05 PM
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#15
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
the bottom line is - regardless of ID ...
you can use 2.0 or 1.7/1.8 style steel heat exchangers or stainless steel heat exchangers on any year 914 motor as long as you use the muffler for that style heat exchanger and the muffler hanger for that style muffler. jim |
type47 |
Dec 20 2007, 04:19 PM
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#16
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
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orange914 |
Dec 20 2007, 07:26 PM
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#17
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
The HE's bolt right up. Gotta use the same system front to back. Same size pipe internally from 1.7 to 2.0 liter. Rich Clarification. The inside diameter of the SSI 1.7/1.8 and 2.0 units are the same. But the ID of the stock steel HE's are in fact different. The stock steel 2.0 HE ID is larger than the stock steel 1.7/1.8 units. so... my 1.7 s/s h/e's ARE the same i.d. as 2.0 s/s's? but they are curved up at the end and obviously they must be curved out also. (the curves are my way of telling difference befween the 1.7 & .02). that is why the 1.7 measures 1.5" wider??? the 2.0 long block cant be 1.5" wider...??? mike |
jimkelly |
Dec 21 2007, 06:19 AM
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#18
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
the exhaust ports on type4 engine are in the same location for 1.7 1.8 and 2.0 --- you need to use 2.0 HEs (steel or stainless) with 2.0 muffler and 2.0 muffler hanger --- or --- you need to use 1.7/1.8 HEs with 1.7/1.8 muffler and 1.7/1.8 muffler hanger --- and you are good to go : )
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