 Options for 914-6 muffler (track and some street use) |
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| 914 Ranch |
 Nov 8 2024, 06:24 AM
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#21
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Team Sharp where the 914 grow wings  Group: Members Posts: 1,485 Joined: 29-January 16 From: TheNorth Shore Retreat. Deland Member No.: 19,611 Region Association: South East States  |
Once upon a time I used to do sandrails, liked Super Trap mufflers. Decided to see what it would take to put them on my car. Took one off a buggy and checked it out on the car. Looked like one a flange and some 2" exhaust pipe and something to hang it on.
 Not enough MB space must make another post. |
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| 914 Ranch |
Nov 8 2024, 06:27 AM
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#22
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Team Sharp where the 914 grow wings Group: Members Posts: 1,485 Joined: 29-January 16 From: TheNorth Shore Retreat. Deland Member No.: 19,611 Region Association: South East States |
With the diffuser installed.
 Really like the way it sounds. Next time I have to pull it I'll weigh it as I am curious myself. |
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| BillJ |
Nov 8 2024, 07:26 AM
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#23
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Senior Member Group: Members Posts: 1,273 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None 
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Overkill on the mounts. Take at least one off if you are trying to save weight.
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| stownsen914 |
Nov 9 2024, 09:40 AM
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#24
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Senior Member Group: Members Posts: 941 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
Careful bracing exhaust to chassis. Unless you have solid engine/tranny mounts, engine (and exhaust) move relative to chassis, and turn the extra muffler bracing into auxiliary engine mounts.
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| BillJ |
Nov 9 2024, 12:40 PM
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#25
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Senior Member Group: Members Posts: 1,273 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None
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Yeah you don't want the mufflers to be tweaking the headers independent of the engine flanges. I would remove entirely.
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| 914 Ranch |
Nov 13 2024, 04:57 AM
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#26
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Team Sharp where the 914 grow wings Group: Members Posts: 1,485 Joined: 29-January 16 From: TheNorth Shore Retreat. Deland Member No.: 19,611 Region Association: South East States |
This is good input as I didn't like the way it turned out. I was trying to get as much movement out as I could. My problem is the slip joint, you can't make it rigid enough. Now thanks too all y'all comments I have a better solution. Remove one of the braces and put the other one inline with the center line of the pipe and spring load the slip joint. Once it's spring loaded it won't matter how much it moves around. Pictures in a couple of days.
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| stownsen914 |
Nov 16 2024, 08:41 AM
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#27
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Senior Member Group: Members Posts: 941 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
A good option is to brace to the standard mounting spot on the back of the transmission cover. Since the trans and exhaust both move with the engine, there is no relative movement between them.
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| Charles Freeborn |
Nov 18 2024, 10:05 AM
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#28
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Member Group: Members Posts: 276 Joined: 21-May 14 From: United States Member No.: 17,377 Region Association: Pacific Northwest |
Agree. The brace from the Trans cover is sufficient. Eliminate the ones to the body. That'll cause problems.
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| Justinp71 |
Nov 19 2024, 07:43 PM
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#29
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Senior Member Group: Members Posts: 1,623 Joined: 11-October 04 From: Sacramento, CA Member No.: 2,922 Region Association: None
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The super trapps look good and sound good with little drone, if you have something with cross over (x-pipe, etc) you will get more power... I've played around alot with exhaust. Looking good!
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| 914 Ranch |
Nov 25 2024, 08:10 AM
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#30
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Team Sharp where the 914 grow wings Group: Members Posts: 1,485 Joined: 29-January 16 From: TheNorth Shore Retreat. Deland Member No.: 19,611 Region Association: South East States |
I'm not happy with the work I have done for the mufflers. The slip joint is just that. No matter what I did it just would slip off. Like when trying to work up it's location or when tightening the braces or just fiddling with it. It never was anything solid. Now with a single brace and springs it doesn't slip off anymore but I still have some stuff to learn about it.
 Now with a single brace and springs it doesn't have any tendency to slip off. I'm still working on spring tension a way to stabilize the clamps on the muffler. |
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| BillJ |
Nov 25 2024, 10:17 AM
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#31
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Senior Member Group: Members Posts: 1,273 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None
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Dup
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| BillJ |
Nov 25 2024, 10:19 AM
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#32
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Senior Member Group: Members Posts: 1,273 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None
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Still overkill for me. Supertrapps are not heavy enough to justify this over-engineering really. Is this because of the rear fairing and the cutouts? Is it hitting that? Seems like a big heat trap and air dam to me ....
No offense meant just being straightforward. |
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