924Board.org

Grenadiers · Posted: Sat Sep 13, 2014 3:27 am Post subject: Exhaust idea

Well, the 924S project is moving right along, tight engine, no leaks, etc. But the muffler is shot, and for a Temporary Fix, I propose the following:

924 turbo Cat-back pipe, flange, and muffler.
Cut and clamp, or weld, the 924 turbo four bolt flange to 924S upper pipe.
Weld 924S muffler hanger to new muffler tail pipe.

The 924 turbo muffler is smaller, but the exhaust pipe is bigger. Will this work well enough till I can get the time to remove the 924S cat, and have someone weld in a pipe, and then say an aftermarket muffler setup? I'm running out of time before we head down to Arizona. Yo.

Or, should I just skip this step, and haul it down to my only exhaust shop in town and have him cut the cat, weld in the pipe, etc?
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'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

do it.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Grenadiers · Posted: Sat Sep 13, 2014 4:33 am Post subject:

I guess the 'do it' answer is what I'm looking for. However, concerned about whether the turbo muffler is big enough so the car doesn't sound like some ricer out there.
_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

The 2.5 won't sound like a ricer. Its too large and comparatively low revving.

If you're really worried, hit the parts store and pick up a cheap glass pack to place it in where the cat is/was and you'll change the resonating frequency a little. Just be aware that the packing will eventually fail.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

ThomasJoseph315 · Guest

You might want to move that lift arm under the sub-frame before you crumple something.

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Grenadiers · Posted: Sat Sep 13, 2014 10:39 am Post subject:

It was on those points under the tub from May till just recently. They are fine. Racecar.
_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

I dunno fellas, tj is a 911 mechanic, you should heed his wisdom.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Grenadiers · Posted: Sat Sep 13, 2014 11:26 pm Post subject:

The air-cooled 911's have worse jacking points than the 924. Real easy to squish an oil cooler line on the passenger side.
_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

nickthompson · Joined: 26 Mar 2013 Posts: 873 Location: Central Georgia

ThomasJoseph315 · Guest

Grenadiers · Posted: Sun Sep 14, 2014 3:12 am Post subject:

Ok, back to the originally scheduled post, the exhaust is in, and it works perfectly. Sounds great, a tad like the turbo car sound, but deeper.
_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC