exhaust

[914kit]

ok i need some expert feedback here
need to put a new exhaust on my 914

i dont like the way the monza sounds

looking to pick up a couple of ponies in the process

where do i start
thanks

[Rouser]

Short of a custom-built system, you could give Triad West Performance a call.

Their last quote (Jan. '01) to me for a 914 2.0L system (including gaskets & hardware) was $320 + UPS shipping.

This is the system I'm considering (I too am stuck with a Monza system; PO) for my future 2270cc. The pickings are few (Bursch, Monza, Sebring, a SuperTrapp setup), and forget Borla; don't support T-IV's anymore.

[914kit]

any other feedback on exhaust?

[Va914]

Did someone on this forum use (2) Super Traps? If I remember they looked great and said they sounded just as nice.

I wouldn't mind hearing alittle bit on the construction of that system if you find out who had it..

Best of luck

[jabb]

This is what you are looking for....

http://www.pelicanparts.com/ultimate/Forum2/HTML/002954.html

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• Joe A.
• 84 911 Targa
• 75 914/6 3.0

[Joe Bob]

Two supertrapps would probably be overkill. I have two on my 3.0/6 and they stick out the back a good distance. I only use them on the track.

Kerry Hunter makes a header for the 914 and uses one supertrapp.

http://members.home.net/mtz1/index.html

Go to the link above and check out the bottom pic of the custom double turbo muffler I had made. Cost $250 from the local muffler shop, not including the "ricey" resonator tips...

[JmuRiz]

Like the muffler job, looks good. Didn't you sell the "beast"? How did the twin mufflers sound by the way? Also, where did you get the white faces for your gauges? sorry for all the questions, but hey that's what a forum is for, right? Thanks

Nathan

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'73 2.0 914

[campbellcj]

I'm looking hard for a marginally street legal race muffler. I need to stay under 100dB. I have a factory muffler I can pop back on if I need to run somewhere with 92dB sound regs.

What I have been told by several race shops is the "best" option for a 914/4 2.0 without going to headers is to do a "911-style" 2-in/2-out sport muffler conversion on a factory (or clone) sausage muffler.

An Ansa clone factory muffler can be had for $250. Only problem is finding somebody to do the work, i.e. open it up, modify the packing and baffling, block off the stock side exit, close it up, and weld on the two new tips. I have found one shop that does this, but (I think) he only wants to use his own used factory OE mufflers as cores...$$$

This type of muffler is a proven, very popular setup for 911 cars and does add measurable power; perhaps 5-10%. It is loud.

I am skeptical of the power gains of the Mittelmotor SS muffler we discussed in that past thread, as I don't know if it's ever been dynod, but they did tell me that it is designed for street use and is quieter and more mellow sounding than the Bursch. It sounds about like stock. For a street application, I would jump all over it. It looks like a sweet deal.

The Triad is a good option too, but it is glasspack based and not stainless steel, so it should add some power but IMHO it seems like the muffler would not last very long. The glasspack packing tends to blow out over time and then you basically have a raspy open pipe. I will go for the Triad if I can't find a source for the factory twin-pipe setup in the next week or so.



------------------
Chris C.
73 914 2.0
70 911E Targa
campbell.chris@gte.net

[Mittelmotor Germany]

I need to correct the price for the 2,0 ss-muffler. It is $336.00 (converted at the current exchange rate of 1 DM = $ 0.43) plus $ 40.00 for shipping.
The DM 899.00 include 16 % sales tax, as all prices need to include the tax if advertised in Germany.
Due to the obvious demand of the power specs, we started thinking about performing a dyno test, whose results will then be posted.

With best regards, Michael Wittke

[DDS]

I've had a few exhausts through my hands during my restoration horsetrading and am going to use a converted 911 exhaust that I picked up in hershey. I've currently go a local SS exhaust mfr. looking a making a SS extractor type single muffler system based on one of the old rusty pipes that I have.
That Mittelmotor unit looks really nice. The dyno results will be interesting.
I elected to pass on the Monza due to quality concerns.

[Bleyseng]

I went out to David Said's (Triad West) last week to buy some parts. I also talked about his mufflers, in terms of construction, how long they last... He said they should last a looong time due to the way he builds them. Several cars have run them for over 5 years and are still fine without the glass packs burning out due to a couple of tricks he does. They do sound really nice with a aggressive low tone. I like them alot better than the Bursch or stock. Now only if they were stainless......
Geoff

------------------
76 914 2.0L

[campbellcj]

Due to the obvious demand of the power specs, we started thinking about performing a dyno test, whose results will then be posted.

Michael - Have you considered making a sport/race version of this muffler, perhaps with two exit pipes (one on each side) and less baffling inside?

I know you have to meet TUV noise requirements in Germany; however, I am looking for the best possible performance while staying under 100dB sound level. I am assuming your current version is more like 88-90dB?

Chris C.
73 914 2.0
70 911E Targa
campbell.chris@gte.net

[This message has been edited by campbellcj (edited 06-14-2001).]

[Joe Bob]

The white faced gauges are from North Hollywood Speedometer. I have been told that Palo Alto Speedo does a good job as well and CHEAPER....

The "Rocket" was sold last year to a guy in Santa Claritia CA...I see it on fun runs every once in awhile. He even tossed me the keys to do a blast around the block.....8^)

I now own a 83 911 SC cabriolet, but I am still looking for another 914 project.

[Dave at Pelican Parts]

Someone at the recent Loma Prieta swap meet in Hayward CA (all that to avoid saying a competitor's name--sheesh!!) was selling wite-faced gauges. I'm not sure if they were 911 or 914, but I think they were 914.

Locals are encouraged to come to the Carlsen swap meet in Palo Alto CA--I think it's in August. The same seller might be there.

--DD

[campbellcj]

Update:

I heard from Mittelmotor that their dyno test is scheduled for 6/25. Hopefully they will do a full "A/B/X" type of test comparing the stock muffler, theirs, and another one such as a Bursch or Monza.

Michael also said they have no plans to build a full sport/race version of it, due to low volume sales. (i.e. I might be the only one who ever bought it.) But, he's confident the dyno test will show good power gains on the current muffler design.

Chris C.

[Mittelmotor Germany]

Yesterday we performed the dyno tests on a 914 2,0 with a GC-engine, what was equipped with Euro pistons, what should bring the engine to 74 kW (100 hp).
The dyno tests were made on an identical car, same temperature, same gas, same humidity and air pressure.
The results (in a short form) show a torque increase of 3,1% (+4,7 Nm) and an increase in power of 3,6% (+4,9 PS). All details with diagrams of the measurements are published on our website www.mittelmotor.de/deutsch/neuheiten/leistungsmessung914.htm

We did not translate it into German yet, so give your German a go!
Best regards, Michael Wittke - Mittelmotor GmbH Germany

[This message has been edited by Mittelmotor Germany (edited 06-27-2001).]

[This message has been edited by Mittelmotor Germany (edited 06-27-2001).]