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> Muffler Options for T4 Header, Updated to SpinTech Muffler
7TPorsh
post Aug 7 2015, 11:32 AM
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QUOTE(7TPorsh @ Aug 7 2015, 10:28 AM) *

WHat do you guys do with the clutch and speedo cable? Mine is routed on top of the engine bar but it's rubbing the header now..Also I'm cooking the left side e-brake cable.

Do I need to re-do the clutch pulley somehow?


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ThePaintedMan
post Aug 7 2015, 12:19 PM
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Look up "Clutch Pulley Adapter" on Chris' website. You absolutely need to re-route it or it won't last more than a minute with the heat from the header.

http://tangerineracing.com/transmission.htm


Also, I would HIGHLY recommend some kind of heat wrap for the cable. Chris sells those further down on that page.
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rhodyguy
post Aug 7 2015, 12:27 PM
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Also note Chris sells insulating sleeve material for cables.
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914work
post Aug 7 2015, 01:06 PM
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QUOTE(aircooledtechguy @ Jul 29 2015, 04:29 PM) *

I'm about a month away from firing mine up for the Squarsche. I'll let you know how it sounds and works.

(IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1438212549.1.jpg)


Nate did you enlarge that inlet/flange?
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7TPorsh
post Aug 14 2015, 12:36 PM
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Lots of things to deal with when adding a header:
- the clutch and speedo cable
- the driver side e brake cable

....and now pipe diameter. The header collects into a 2.5" pipe. The muffler i am going to use also has 2.5" inlet and outlet. Am I ok running 2.5" the entire length or should i be reducing it to 2.25 or 2" .

I can reduce before and after the muffler...or just after. I noticed the 911 exhaust tips are for 2.5"

Running a tweaked 1.7 with dual carbs and a cam. Is 2.5" too big?
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7TPorsh
post Sep 14 2015, 01:47 PM
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Welding day at the local muffler shop...the before shot

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WHat's going in???

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7TPorsh
post Sep 14 2015, 01:51 PM
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Custom fit
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Fire!!
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7TPorsh
post Sep 14 2015, 01:53 PM
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Nice Clean butt! ... and sounds really good!

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Chris H.
post Sep 14 2015, 02:15 PM
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Looks great!
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Dave_Darling
post Sep 14 2015, 04:43 PM
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If it's feasible, I would suggest supporting the muffler off the end of the transmission, the way the factory did it. The whole drivetrain can move relative to the body. If you've got a hard mount from the muffler to the body, that can put stress on the headers or the various joints in the system. If the system can handle that, it's cool. But if the joints are solid, that's not so good.

If you mount to the transmission, the mounting should keep its position relative to the exhaust ports pretty well. Much less flexing is needed that way.

--DD
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7TPorsh
post Sep 15 2015, 09:24 AM
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QUOTE(Dave_Darling @ Sep 14 2015, 03:43 PM) *

If it's feasible, I would suggest supporting the muffler off the end of the transmission, the way the factory did it. The whole drivetrain can move relative to the body. If you've got a hard mount from the muffler to the body, that can put stress on the headers or the various joints in the system. If the system can handle that, it's cool. But if the joints are solid, that's not so good.

If you mount to the transmission, the mounting should keep its position relative to the exhaust ports pretty well. Much less flexing is needed that way.

--DD


Thanks Dave, you are exactly correct. We cut some of the stock mount arm off and welded the bracket to the back of the muffler on one side and the pipe on the other. So yes supported entirely by the drive-train; no body mounts at all. (IMG:style_emoticons/default/smile.gif)
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7TPorsh
post Sep 15 2015, 09:27 AM
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Also notice the Tangerine Racing piece to lower the clutch cable....kinda neat how it's tangerine color...
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Maltese Falcon
post Sep 15 2015, 07:44 PM
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Excellent fabrication, he is a first class muffler guy (IMG:style_emoticons/default/smile.gif)
Post a sound track with the Magnaflow muffler when you get a chance !
Marty
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7TPorsh
post Jun 16 2017, 08:57 AM
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Here's an update (sound of typewriters)....what's a typewriter?

Since the car is getting some treats I decided to update my sound. The Magnaflow I have been running is quieter than stock.... (IMG:style_emoticons/default/mad.gif) Everyone brags about the sound, etc, etc. Yeah it looks shiny but no sound.

So following some advice from Marty (Maltese Falcon) I looked into SpinTech. Called them up Monday and custom ordered my configuration.

2.5" single inlet / 2.25" split dual outlet.

In my hand Thursday afternoon....incredible. off to the muffler shop once the car gets it's new shifter bushings...

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Car will have a 911 exhaust tip on each side....need a new right side valance cutout now.
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Mark Henry
post Jun 16 2017, 10:06 AM
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QUOTE(7TPorsh @ Aug 7 2015, 01:28 PM) *

WHat do you guys do with the clutch and speedo cable? Mine is routed on top of the engine bar but it's rubbing the header now..Also I'm cooking the left side e-brake cable.

Do I need to re-do the clutch pulley somehow?


Fire sleeve and hose hangers.
Tangerine had a pulley bracket that flips the bracket on it's side.


(IMG:http://www.914world.com/bbs2/uploads_offsite/aircraftspruce.eu-26-1497629331.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/ae01.alicdn.com-26-1497629332.2.jpg)
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Mark Henry
post Jun 16 2017, 04:01 PM
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Just did my e-brake cable with fire sleeve. (IMG:style_emoticons/default/biggrin.gif)
I should have used a smaller diameter, maybe 1/2", but I had 1" on hand. I'll try to tie it up so it's not touching later.

It's a /6 but you get the idea.


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Maltese Falcon
post Jun 16 2017, 10:06 PM
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Can't wait to see the finished product Gary...see you at the Petersen Cruise-in Sunday 6/25/17 ? We will be there in something grey with carbon ceramic brakes/ big yellow Brembos (IMG:style_emoticons/default/driving.gif)
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7TPorsh
post Jul 26 2017, 09:55 AM
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(IMG:style_emoticons/default/icon_bump.gif) ing my thread to post an update.

After playing around with the looks of the car and making it a little more racy, I'm came to the realization that the car was too quiet. Sounds great but too quiet.

I totally recommend the Magnaflow to anyone looking for a deep tone sound without much of an increase in volume from stock. ...and i'm running a header too.

So I did some research, measurements, etc. and decided on a SpinTech "Camaro" type muffler. These have a single inlet and dual outlets. Spintech builds these to your specs if not already available. They did a 2 1/2" inlet and dual 2 1/4" outlets for me and I had it in 4 days from SoCal.

Looks low but really isn't; just cause of the color... still higher than engine/tranny...

Different welder.....this guy is in Chatsworth and is awesome....former Porsche mechanic from TRE. Look at the quality of the welds/bends....very satisfied.

New sound? Unbelievable!! Louder-Yes Deeper-Yes Racy-Yes Yes Yes

car has a Ferrari ish growl between shifts that I'm really liking, I know why they call it "Spin" Tech now. It's like a really deep BRRRRrrrrrrr[size=5] as the revs go down.....

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Mueller
post Jan 3 2018, 10:54 AM
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^Still enjoying that SpinTech muffler setup? (IMG:style_emoticons/default/smile.gif)
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7TPorsh
post Jan 3 2018, 12:40 PM
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Oh yeah, I get nothing but compliments....everyone thinks it's a 6 . Really deep sound...
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