My current mods are in the sig. I like my Flowmaster, but it's not as "throaty" as I would like it to be. I want the "crackling" noise that old muscle cars make. I love being able to hear the individual "pops" from these old cars. My Flowmaster is only throaty when I rev it. It is just plain deep at idle. So, my question is, if I add a ported plenum, Edelbrock TPI runners, an Edelbrock TPI base, and a set of Air Flow Research heads to help my engine breathe better, will I get this sound? ANY help would be greatly appreciated. Thanks.

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1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run (with old LG4 motor):
16.760 @ 80.74 MPH

1992 1LE B4C Police Camaro RS - 305 TPI 5-Speed

 

I think if you raised your compression ratio a bit it might help. Also, if you retard your cam by 4 degrees, I think you'll find that the raspy sound will also be enhanced.

Personally, I find that my car has that nice raspy sound at idle until the carb goes closed loop. then, the idle smooths down and gets quiet. At least, until I mash the gas!

I have sounds of the idle on my website listed in my SIG. Is this what you are looking for?

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Daniel Burk
View my third-gen hobbyist performance page!
View my reader's ride!
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff., Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
1.05g skidpad verified.
Best of 14.039 at 100.82 MPH in Stanton, MI
New!Full 1LE brake upgrade! Details at website above.

 

ws6, thanks for the reply. That's kind of how the sound is. But the sound I'm referring to is much slower. I don't want to retard my timing; I'd rather have it advanced. What I'm really trying to ask is, will more horsepower make the exhaust louder and more throaty? Thanks.

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1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run (with old LG4 motor):
16.760 @ 80.74 MPH

1992 1LE B4C Police Camaro RS - 305 TPI 5-Speed

 

Simple, get a solid roller cam with about .500" lift and 230+ degrees of duration at .050"

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1985 Z28, Jasper Class 1 350, Edelbrock Performer intake, Dual snorkel air cleaner, K&N, Edelbrock headers, Catco 3" cat, Hooker 3" cat-back, Richmond 3.73's, built 700r4 w/Darrell Young 2400 stall TC, JET Stage 2 chip, Hypertech coil, Lakewood LCA's, Powertrax locker, SSM subframes, Centerline Auto Drag's

 

Dude, you're using a nuclear warhead to take out a tree stump. If you want that sound, you need true dual two-chamber Flowmasters and a big cam. If you want to go fast, do these things. If you want that sound as still go slow buy a mustang and add two chambers with dumps.

No flame intended, but you're going the wrong, expensive way to change the sound of your car.

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Cody "cyZ28" Young
'84 black on black Z28

355, 5-speed (on the way out. What goes back in, ooohh baby!!)
http://www.geocities.com/mustang_tbird/codypage.html

 

Not on my 3rd gen, and I don't have it recorded on a website, but my '57 has exactly what you are talking about without a "wild" cam (notice idle RPM). It only obtained this sound after the 2-1/2" tailpipes were installed - when it was open behind the mufflers, it was just plain loud. Oh, I blocked off one side of the exhaust cross-over when I installed the intake this last time - that probably contributes to the crackling. It didn't do it before with Midas 2-1/4" turbo mufflers and 2-1/4" tailpipes and the exhaust cross-over open.

I believe the only way you're going to get that sound is with dual exhaust and very open or free-flowing mufflers (old glass packs used to do it). If you have an H-pipe between them or the exhaust cross-over open, it will reduce that crackling.

Personally, I'm not all that fond of it. But, I have neighbors I don't want to upset as I'm driving home from the track at 12:30 a.m.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam and intake, World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

 

Nothing crackels and pops like glasspacks or open pipes Its not really the sound i like personally, but hey its your car, if its what you like go for it. I just always thought it was more an classic car or truck kinda sound but like i said, thats just IMO.

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88 Camaro (not an RS, or an IROC, justa camaro.)
305TBI/700R4/2.73
14" Open Element and Flowmaster 80 seires

Next up: headers and gears

 

Thanks for the replies. cy Z28, I'm not going to get heads and an intake just to change the sound. I was going to get them anyways for more power, and I was just wondering if it would by chance make my car sound better. Thanks.

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1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run:
14.137 @ 94.57 MPH

1992 1LE B4C Police Camaro RS - 305 TPI 5-Speed