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Desolation · Joined: 20 Jul 2006 Posts: 236 Location: Texas

What type of exhaust setup sounds nice and loud on these cars? as of now I have some kind of muffler I dunno what kind and I noticed someone took out the cat and just welded a straight peice of pipe in its place, Cant really tell the sound of it atm because its not fully bolted on to the headers but would that make much difference? Its quiet atm. The louder the better just not straight headers, gotta have it legal

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1977 924 - sold
1989 Mustang
My MySpace ^_^

Lizard · Posted: Wed Aug 23, 2006 1:05 am Post subject:

flowmaster, or two cherry bombs in line.
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3 928s,

Desolation · Joined: 20 Jul 2006 Posts: 236 Location: Texas

Lizard · Posted: Wed Aug 23, 2006 9:41 am Post subject:

lol why not, as long as it isnt too loud they wont harass you
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3 928s,

Desolation · Joined: 20 Jul 2006 Posts: 236 Location: Texas

What kinda sound do cherry bombs produce? I've only heard flowmaster. Hopefully not ricer-ish?
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1977 924 - sold
1989 Mustang
My MySpace ^_^

Lizard · Posted: Wed Aug 23, 2006 11:23 am Post subject:

the 924 engine has a deeper note than the rice rockets, just dont go with some 4" tip
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3 928s,

Desolation · Joined: 20 Jul 2006 Posts: 236 Location: Texas

Lmao, So would 2 cherry bombs cause loss in power or anything like that? Also where on the pipe would be best to install the 2? One at cat location and one at the end?
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1977 924 - sold
1989 Mustang
My MySpace ^_^

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

In the last 24 years I have tried most of the different exhausts.

I have used

Best Stahl headers and no cat with straight throug muffler, nice sound
Cut the downpipe and made duals with Cherry bombs, too loud for me at my age but nice according to my friends, no cat
stock exhaust manifold with 944 setup quiet but not good enough.
Check out a no cat with a Warlock muffler. You can open the left side exhaust pipe on the muffler for straight through or block it with supplied plate and the exhaust comes out the right side normally. Might be a little loud.
Stock muffler with cat the quietest.

Currently looking to put on the dual pipes again with a two in two out muffler. I have not looked for one to fit though.
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"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

Lizard · Posted: Thu Aug 24, 2006 12:03 am Post subject:

I am saying to put them in series not in parellel,

yes 1 where the cat was/is, and 2 were the muffler normally is, will it cause a power loss doubtful
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3 928s,

Desolation · Joined: 20 Jul 2006 Posts: 236 Location: Texas

Cool because 2 cherry bombs would be less then a flowmaster

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1977 924 - sold
1989 Mustang
My MySpace ^_^

924RACR · Posted: Thu Aug 24, 2006 10:51 pm Post subject:

I'm running an MSDS header with 2.5" exhaust throughout; 3 Dynomax bullet race mufflers to calm it down (not much!) with a turn-down at the end.

Note that my turn-down is not one of the off-the-shelf aluminized ones, but rather a mandrel-bent one. The off-the-shelf crimped style take a lot more noise out of the exhaust, mine only redirects the noise (away from the sound meter).

I would NOT recommend this on a street car: it's evil, horrendously loud, and will guarantee a BAD headache for the driver (I have to use earplugs inside my helmet) and many tickets. Still sounds much deeper and throatier than the rice rockets - way more refined and serious.

However, we did throw a Thrush Turbo muffler on the end of it once for a DE (in place of the last bullet muffler, same location as stock rear muffler). This really quieted it down nicely, quite suitable for the street, yet still sounded great. Sometime I'd love to dyno the difference; if it's not an HP loss, I'd rather race with it (remember the earplugs?).

I am VERY fond of the Dynomax race bullet mufflers; they're only like $35 from Racer Parts Wholesale, are straight-through, very compact, and are much more durable than a cherry bomb. Mine have taken much abuse, still fine.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

Desolation · Joined: 20 Jul 2006 Posts: 236 Location: Texas

StienbargerR · Joined: 28 Oct 2005 Posts: 1362 Location: Richmond, IN

I have a full flowmaster on mine. I like it, but sometimes it is a bit loud. It sounds sort of like what you would expect from a pickup truck when you drive economically, but when you put your foot in it, it really opens up.

Honestly, I think I would get a flowmaster or something similar if you want a good exhaust note. It's not really ricey at all, a good deep noise, not high pitched at all. On deceleration in gear, from a high rpm, you can hear the burble of gas going into the exhaust, sounds pretty good, like a rally car or something.

Downshifting under a tunnel is fun too! Good way to scare your friends when the roof is out. Makes a huge noise!

Ryan

ps- I will be more proud of my car when it is painted tho, I look like a redneck right now with a loud exhaust, and a crappy bondo job on the side. haha.
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1978 924 NA
-250lb lowering springs, Euro Pistons

924RACR · Posted: Fri Aug 25, 2006 10:09 am Post subject:

Sounds like you may need to adjust your mixture, Ryan - running a bit lean?

No, the Dynomax bullets hardly do more than take the edge off the Loud. The Thrush was what was needed to really calm it down.
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

StienbargerR · Joined: 28 Oct 2005 Posts: 1362 Location: Richmond, IN

sorry to hijakc the thread,

but what is it that makes you think Im running lean? Is the burble a symptom of a lean mixture? I will check the plugs tomorrow and see what they look like.

Ryan
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1978 924 NA
-250lb lowering springs, Euro Pistons