The first prototype should be finished by tomorrow.
I need a vehicle to put it on for testing.
Anyone local want to try it out?


Click to view attachment

Man Chris,

That looks fantastic! Any idea of what they will cost?

PS: My 4YO like to watch you crash. He likes the videos where you overtake other cars, but mostly he like the crashing.

if you feel like sending it out to socal, i'll gladly give it a test run chris..haha i gaurantee it will be put through its paces, and i'll even pay shipping.

Chris,

Will that fit under a stock 73 valance?

Will wait to see how loud it is . Looks cool. Robert21

Now why would you want to hide all of that stainless steel?

I would be up for one except I have 1.7 liter HE's

If you get around to building one for the 1.7 HE's let me know..I dont want it quiet
I do want it up high and tight with nothing showing below the short valance.

rich

If done correctly, all that will be obvious is the two outlet tips.
A cutout in the valence will be necessary to provide clearance for the tips.
Or if you want to show off the muffler delete the rear valence.

Rich, its easy to remove sound deadening features and turn up the volume.

If you made them, please install a bung for an O2 sensor...

And make them for the 1.7-1.8 exhausts too.

Damn that looks good.

Any power advantage over running a Bursch?

Definitely!

I believe so, but I'm not spending money on dyno results to prove it anytime in the near future.

That would be doubly awesome with a single tip, like the Sebring's on the 356s!

Nice work.

That is sweet Chris. Any idea when they will be available?

David

I have a nice clean 75 with low miles I can test on for you if you work one up for a 1.8/2.0L in the future. Not to far away in NC


-Robert

I wasn't planning on developing one for the late HE's, but it could be done.

We can do that, no problem.

6-8 weeks from date of payment received.
The prototype will be available sooner - right after I do a quick install for fitment and sound verification.

What is your target price?

That looks good Chris. I hope it works and you sell a bunch, so that there is an alternate muffler available to the 914 group.

Looks sort of like my stainless steel muffler from MittleMotor in Germany. Well, maybe not. But, sort of.

The MittleMotor muffler is a straight tube with a single end outlet in the stock location. Good quality. Fairly heavy.

My prototype weighs 24.5 lbs.
I guarantee that internally it's not at all like the Mittelmotor muffler.

Chris, Could you elaborate on this? What does the inside of a Mittlemotor muffler look like? Similar to the stock Porsche bannana style mufflers?

I am curious, but I don't think I will cut mine open any time soon.

Ooooo

I wasn't planning on replacing the bursch extractor on my '70 (yes it has 2.0 HE's), but that is sweet!

Build one for a six? Adjustable sound would be great for my track teener.

That looks cool ........................

I should have seen that coming.

We can do just about anything for the right amount of $$$.
If you don't have tight sound restrictions like at Laguna Seca, swapping in a pair of Stage I silencers is the best way to make your car louder for the track.
Although my EVO mufflers flow really well and I doubt you would see a meaningfull power increase from the change.

I have no idea of the internal details but I am certain mine is different.
As far as I know, no one else has ever applied the techniques I use.
I can tell that just by looking at the exterior.

Are we going to get a video clip with audio when you have it perfected?

Chances are pretty good for that.


I won't set the price until testing is completed but it will be consistent with similar mufflers we already make.

I was just watching my 2009 Scare under the Bridge video last night, and I felt a little increase in heart rate as the car drifted off the edge of the track.
The averted disaster isn't quite as obvious in the video as I remember it.
The 2009 crash still hurts when I watch it.
I'm glad it provides good entertainment value though.

So I am guessing this has all the merged piping on the inside. What size are the tail pipes?

No it does not have any merged piping. I'm going for the shortest primaries possible, and no interaction between them.
This moves the torque band up and helps prevent dips in the curve.
By spinning the gasses around the inside perimeter of the canister I'm minimizing turbulence which decreases flow.
The baffles I designed are very free flowing, yet reflect sound waves back to the sound absorbing media at the ends of the muffler.

The outlets are 2" ID, 2 1/2" OD.

I'm on the same coast as you and I've got a fairly stock 2.0 with SS HEs. EMPI carbs. Not very racey but i'm happy to be your guinea pig if nobody closer offers.

Bought it with a Monza/Manta exhaust, I'm just waiting for it to rust out to replace it.

Forgive a newbie question, is the HE system for 2.0 different from the earlier units ?
I have 76 2 liter that presently has the short headers and a Monza system with no heat exchangers, so want to revert to having heat. Do i need to get the heat exchangers with the 3 bolt flange and no direct bolting to the head exhaust ports ?
Help me out here

Send it to me Chris and I will install it on Betsy and drive it to Hershey, that's a good 1000 mile road test for you. I am running stainlees HE and dual Webers. Currently running a quad tip and I need to get rid of it. Hell, I may even pay the shipping.


Shoe

I have the 4 tip too, and converted to 2 but that is defiantly on my wishlist now!

Its already installed on my car.
Fits perfect; looks & sounds great too!

YES me, me, me!

EDIT: Dibs on buying the prototype!

looks like a pinky lifter knock off of a triad......

I didn't have time to look for a valence I could modify.
Click to view attachment

Click to view attachment

Click to view attachment

I was surprised. It sounds a lot like one of my EVO II Silencers connected to a Tangerine header.
But I think its a little quieter, and I can build it to be louder or more quiet without altering the performance.
I haven't figured out a way to make the loudness adjustable yet.

Looks good, I like the twin center exit pipes. I built something similar but without the "end tanks", could you elaborate on their purpose? Seems like excess weight hanging off of the extreme end of the car though certainly an improvement over the original dansk I am sure.

Looks great Chris - can't wait to hear it!

Large tips like that are popular on many cars today, even on non-sporty cars with tailpipe sizes of only 1 1/4".
They become a styling element of the vehicle, rather than just a way to get rid of exhaust gasses.
I may shorten them an inch or more so that they blend into the valence a little better.

We started forming these in-house recently but so far haven't attempted to trim the ends on an angle so they conform with the angle of the valence.
That's next.
We can easily do a single center tip instead if that's what the customer wants.

Any idea when one will be for sale?

If you are selling these soon, bring one to Hershey

Put me on the list for the 1.7 HE's and a single large (oval) tailpipe.

I would love to hear it at Hershey....just sayin...

rich

The next one I build will be for 1.7 SSIs.
But it probably won't be done in time for Hershey.
Maybe I'll pull the one off my car and bring it so we can mount it on someone else's car for a quick test.

As soon as I've completed sound level testing of a couple ideas I'll be ready to sell them.

Hmmmm

I would want a /6 in the future

Ed's car
Make him drive the 914 down.... (coming from a guy who is driving the 911)

rich

How is the testing going? I am looking to get rid of the Monza on my car.

Thanks to guys like you, Mikey914 and a few others, we can enjoy our teeners for years to come. Keep up the gut work.

I'm real happy with the one I installed on my car. I don't feel any loss of performance compared to the EVO Stock header I removed. (d-jet 1911)
However I would like it to be slightly quieter inside the car at some rpm. It has a mild resonance between 2500-3000 rpm. I have something to try for this.

I don't think its that loud outside the car but I haven't had someone else drive it to hear for myself.
I also want to build one that is a bunch quieter for those who want it that way - hopefuly without a noticeable performance change.

Update bump Please

I would love something like that, that will bolt up to my Euro-Headers.

Bringing this back up because we're building mufflers right now.
Here are pics of the first production unit completed.
It weighs 17 lbs.
The second one will be with a single tip at the stock left corner location.

Click to view attachment
Click to view attachment

Yummy,

How much and did you ever do the 1.7 HE setup, single middle pipe?

And why can't I shop from my iPad..???