irocdreamer

Hey guys whats up? I am buying an L98 GTA or IROC soon. I saw a first gen camaro on the road the other night and it was VERY loud but sounded awesome. Is there anyway to make the L98 sound that way? I plan on doing heads/cam or stroker, but thats down the road. If I got a dual cat car, could i just run like seperate three inch pipes out the back with no muffler? Like a dual exhaust from the cats back? Or would that sound terrible?

Also what effect is a head/cam or stroker going to have the exhaust note? Thanks guys

IROCZTWENTYGR8

iTrader: (1)

There are many exhausts that will give a sound like that, single too, like Flowmaster. But if you really want a sound like that run dual exhaust with Flowmasters or the chambered mufflers like 1st Gen Z28's.

x_wolf

glasspacks baby!! LOVE the sound of those!

PsychoGTA

You cant beat my set-up, other than the headers dont like that much. It gives my car a mean sound to it. But edelbrock headers to a dual cut-outs, to dual hi flow cats to hooker exhaust. The hooker has a nice sound to it, nice and mellow has a bark to it when u give it gas. But with the cut-outs open damn, makes flow-master sound like a **** burner.lol
Peace Out,
PsychoGTA

SweetS10v8

A exhaust system would help, but if you want the bumpidy bump, rough idle, sound quality of a muscle car youll have to put in a camshaft with more duration and overlap. But to do that with no other mods would hurt your performance substancially!! An overcammed engine is the worst!!!

trans_am_ta_84

another thing is.. old cars don't need cats, but we do (legally anyways)

83 MidniteZ

GMMG chambered system hands down... that is what i want to put on my next fbody. www.gmmginc.net

chio987

700 BUCKS screw that, goto http://www.stainlessworks.net/Mufflers.htm and get the 2 mufflers and goto a shop and atleast u can get some good 3 in tail pipes. i bet u can save atleast 150 or more

Dirty Rob

Cherry bombs...oh yeah

AJ_92RS

The cool thing to do is to get a cam with a close LSA, but less overlap.

That's what the 327/350HP cam was.

Don't expect it to get along with a computer though. :nono:

spartyon

agreed!

SSC

Cherry bombs arent like they were way back when. If you look inside they actually have smaller resonace dimples now days that prevents them from burning out as quick and sounding nice. I replaced the turbo tube on my old setup with a new style cherry bomb and it was quieter. KC makes an old school glasspack that sounds nice when burnt in but anymore all the muscle cars sound fairly the same as our cars. I personally think the Ravin muffler Ive got now is close to what the car should sound like but if you want it old school you need two pipes. BTW the most common muscle sound in almost all the 60's & 70's exhuast notes were played through turbo/super turbo mufflers, glasspacks were for beaters and poor mans cars (wanna be's).

IROCZTWENTYGR8

iTrader: (1)

Alot of those cars didn't even have "true" dual exhaust either. There was 2 pipes into a 2 inlet and 2 outlet muffler alot of the time.

SSC

Yep, but has GM ever given a good quality fatory exhuast on any car? Seems fNord was and is still the only manufactoror that seems to put any real effort in exhuast on mass produced cars. My 67 Tbird (mine cause no one wants it) actually still has the factory setup, dual 3in pipe with a 2.2 crossover tube and high capacity mufflers all OEM.

My Malibu has pathetic dual 2.5 pipe in some forsaken round not glasspack that passed as a muffler

Air_Adam

Purple Hornies, headers and a big-*** cam

bigals87z28

... early muscle car eh?

two words... BIG BLOCK. all the cam in the world in that 350 aint gunna sound like anything with a cammed 396, 402, 427, 454, 455... the list goes on...
the GMMG is a 4th gen cat back.. only thing you could uses is the over the axle part and the chamberd mufflers... the rest wont jive. Willie has a very similar set up to the GMMG only his is dual exhaust!!! Muscle car sound is gunna have to have some serious muscle behind it.

IROCZTWENTYGR8

iTrader: (1)

Nah, I've heard 350s before that sounded like way bigger engines but it takes mods. Most of the musclecars from way back were actually not that loud, it's what the owners did after they got them or if they had special exhaust options.

scottland

what physically makes the big blocks sound different?

The block is simply bigger, the exhaust ports on the heads are spaced differently, but its not going to effect the sound that much.

I think your talking out of ***.
a 400sb and a 396 bb with similar cam profiles and flowing heads
with the same exhaust setup with sound pretty much the same. If you think about what inside of a motor makes noise. there is a combustion in the cylinders, then the exhaust valve opens push out the burnt mixture. then the intake vavle opens to let fresh air in. you hear the combustion coming out of the exhaust vavle.

I don't see how the physical size of the engine block has a damn thing to do with the sound of the motor.

red_82_z28

If you want the lopity, lopity, do like I did on my 72 chevy pickup.
Get a bored over .60 350 4bolt main perferably. Flattop pistons. Vortech Heads and intake. with a Holley 750 dubble pumper. but heres the kicker if you can find it. Get a 1969 style Z28 Cam it won't sound quite the same a the Z because it has 12 1/2 to 1 compression but it will give you all the lumpity, lumpity you want also put on headers and 12 inch glass packs and 2.5" pipe and 3"round by 12" long tips and you talk about sounding good. but the trick is all in the cam.

Gunny Highway

iTrader: (1)

I agree with some of the guys here. If you want to sound old school, you need a lopey cam.

My old 72 Lincoln had a lopey cam and true dual Flowmasters and it would set off car alarms at idle.:hail: But that was with a 460, but I'm not sure if that has too much to do with it.

Abubaca

iTrader: (3)

Cam cam cam.

You'd be surprised how little the actual "sound" has to do with it. Next time you hear that sound you like, ask yourself if it's the sound/tone you like, or the fact that the cam is count'em off slower than molasses!!!!

It's the cam, not the sound, not the size of the block. Now don't get me wrong, we all have preferences about mufflers and specific sounds, but generally speaking, it's the cam that gives that slow lopey sound that we all LOVE!!!:hail:

IROCZTWENTYGR8

iTrader: (1)

This is true.

Daz

iTrader: (1)

another gem..

Combustion creates sound.A BBC and an SBC has different combustion CHAMBERS.the difference is not just the block,its also whats inside.BTW wipe your mouth after you talk

Daz

speedingpenguin

iTrader: (1)

at one of the local cruise nights theres this guy who brings his old 'vette every week, it sounds freakn amazing.....its got an edelbrock crate 350 with 425HP dont know if he replaced the cam or not...he didnt seem to know TOO much about the car other than the real basics....but he did say something about Vortex by Cherry Bomb mufflers or whatever...
It sounded amazing......not only was it loud (you could FEEL the sound from like 10 feet away even), but sounded really nice. I'll put a vid of it up on my site and put the link here....okay here it is
It sounds best if you have a decent set of speakers with a sub. for your computer but you can get the point.....it was ALOT louder at idle, and you can really hear the 'thumpidythumpidythumpidy' of the cam even though i doubt its an outrageous cam.

http://home.comcast.net/~speedingpen...enight_052.MOV

I'll leave the vid up for a few weeks, if anyone wants to copy it to their site, feel free to do so, but i usually clean out my folder with Comcast every few weeks cause i tend to run out of space QUICK. but i'll leave it up for a while...

19doug90

listen to this man i have true duals with chambered mufflers and it is one of the loudest street cars i have ever heard in my entire life.

Error404

I think the heads might have alot to do with it.

My 3rd gen doesn't sound like many others (Edelbrock headers and a cutout), probably because I have some "unknown" heads on the engine.

at 1/2 - full throttle, the car sounds like a nascar.

bigals87z28

like i have said before... you want muscle car sound, get a muscle car engine with a muscle car bumb stick. find something with cam that looks more like a crank shaft then a cam shaft im sure you will get an awesoem sounding car.

rolling-robert

I'll second that!

bigals87z28

Thank you... i didnt even see his response.

Air_Adam

This is what I would do:

- Solid lifters
- Over .525" lift, both sides
- Over 245* duration and alot of overlap
- 2 (yes, two) Holley double pumpers
- Big, long tube headers
- BIG ehxaust pipes (3.5" if a single)

IMO, there is nothing on Earth that sounds ballsier (that even a word?) than the sound of a badass Chevy V8 with solid lifters.

Basically, any parts that will murder emitions performance will help give you that sound... but lotsa cam overlap is 90% of it.

deadbird

Make an early style dual exhaust.



The cam will just add the lopety-lope sound most people really like to it. Also, the more pipe off the outlet of the muffler will add to the 'hollow' sound.

curt86iroc

BBC