Hey im sorry for my numerous posts lately, but after i repair my car i want to drastically increase the volume of the whine of the supercharger. i want people to hear it coming from a ways away. i have just a stock car with a gutted airbox. Got any ideas? thanks
deekster_caddy Master
Name : Derek Age : 52 Location : Reading, MA Joined : 2007-01-31Post Count : 7717 Merit : 109
An FWI of 4" will make some noise... A ported supercharger will make it louder still. A GenV supercharger sounds just awesome! But it's a bit more work...
SuperRiv07 Addict
Name : Nick Age : 39 Location : Brookfield, And If everything goes right A Nice big house in Bolingbrook with a big GARAGE Joined : 2008-07-20Post Count : 706 Merit : 0
I would not recommend dropping pulley sizes with just a gutted airbox for mods. A purely stock setup can still have existing KR, a smaller pulley will make it worse.
No way to know w/o scanning for KR. Like Derek said, your best route would be to open up the intake with a 4" FWI and cone K&N in the FW. Also remove the big plastic shield over the engine. Pull the weatherstrip off the back of the engine bay. It'll let hot air out of the bay, and maybe a bit more whine.
wat is the weather strip and how do you remove it?
1998 Riv Expert
Name : Dave Age : 63 Location : In The AZ Oven Joined : 2007-01-17Post Count : 4502 Merit : 44
Subject: Re: supercharger whine Thu Jul 24, 2008 9:51 am
It is a length of rubber seal that runs across the top/back side of the engine bay, sealing against the underside of the closed hood. It will just lift right off the steel ridge it sits on. Removal should help allow hot eng compartment air to pass out the back of the hood when you're moving. I'd keep it though, don't toss it out.
AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13Post Count : 18448 Merit : 252
Subject: Re: supercharger whine Thu Jul 24, 2008 10:06 am
'70 Ninety-Eight Holiday Coupe 455cid • 116k miles ^^^ SOLD ^^^
Supercharged Addict
Name : Blake Age : 34 Location : Akron, Ohio Joined : 2008-03-12Post Count : 611 Merit : 0
Subject: Re: supercharger whine Thu Jul 24, 2008 10:25 am
https://www.youtube.com/watch?v=OzTyLbJ7WHY
you cant clearly hear the effects of a FWI
1998 Riv Expert
Name : Dave Age : 63 Location : In The AZ Oven Joined : 2007-01-17Post Count : 4502 Merit : 44
Subject: Re: supercharger whine Thu Jul 24, 2008 11:09 am
You can in person.
SuperRiv07 Addict
Name : Nick Age : 39 Location : Brookfield, And If everything goes right A Nice big house in Bolingbrook with a big GARAGE Joined : 2008-07-20Post Count : 706 Merit : 0
The sound won't really change, just the sound level, specifically on hard acceleration, but at idle also, esp with your window open, as the FWI is right by your door. A smaller pulley, when you can safely run one, will add some volume too since the SC will be running at higher rpm's.
1998 Riv Expert
Name : Dave Age : 63 Location : In The AZ Oven Joined : 2007-01-17Post Count : 4502 Merit : 44
FWI seems about 50% louder than gutted box, and maybe double the sound level of stock. Remember that the GTP is not as well insulated, so the noise is a bit softer in a Riv with windows up, but roll them down... from outside it's just as loud:
'70 Ninety-Eight Holiday Coupe 455cid • 116k miles ^^^ SOLD ^^^
texasfan010 Enthusiast
Joined : 2008-02-18Post Count : 215 Merit : 1
Subject: Re: supercharger whine Fri Jul 25, 2008 1:07 am
is there any way to make a FWI out of the stock hose?
turtleman Expert
Name : Codith Age : 36 Location : Villa Park, IL Joined : 2007-02-08Post Count : 3671 Merit : 140
Subject: Re: supercharger whine Fri Jul 25, 2008 1:11 am
texasfan010 wrote:
is there any way to make a FWI out of the stock hose?
the stock intake is a FWI
I reckon you could use the stock hose as part of it but it's simply not long enough to make it through the fender well. You would need to add hard tubing to it no matter what and really the whole point is to make the intake better than the stock so why do it? You know what I mean jellybean?
AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13Post Count : 18448 Merit : 252
Subject: Re: supercharger whine Fri Jul 25, 2008 8:38 am
texasfan010 wrote:
is there any way to make a FWI out of the stock hose?
'70 Ninety-Eight Holiday Coupe 455cid • 116k miles ^^^ SOLD ^^^
Shintsu Expert
Name : Shintsu Joined : 2007-10-14Post Count : 2979 Merit : -16
Subject: S/C whine question Wed Jul 30, 2008 2:05 am
Perhaps this is a dumb question but what really makes the whine that the superchargers do make oh so much? Is there any particular reason why one time driving the car it sounds particularly boosty (As in the S/C whines with the slightest provocation of the gas pedal a bit much) and other times much quieter?
deekster_caddy Master
Name : Derek Age : 52 Location : Reading, MA Joined : 2007-01-31Post Count : 7717 Merit : 109
Subject: Re: supercharger whine Wed Jul 30, 2008 8:20 am
a combination of the air opening and RPM. The air opening is controlled by the vacuum boost bypass valve, which opens according to how much you are stepping on the gas.
Or are you more interested in the physics of how each rotor opening generates a little whoomping sound as it passes the opening that when combined with 5000 RPM makes such sweet music?
AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13Post Count : 18448 Merit : 252
Subject: Re: supercharger whine Wed Jul 30, 2008 9:47 am
Have you ever heard an air raid/tornado warning siren? Blowers and sirens share a lot of the same things, but while superchargers are designed to push air into the engine, sirens are designed to push air out of a horn, as sound. Blowers and sirens are different, but the same type of thing is happening in both. If you could listen to a blower from the manifold side, it would be pretty f'n loud.
Like Derek said, the bypass is controlled by vacuum, which is indicative of engine load. If engine load increases while in OD with the TCC locked, as in going up a hill, you can have significant boost at very low (1500) RPM.
Subject: Re: supercharger whine Wed Jul 30, 2008 10:17 am
Weather and air density also have a bearing on the amount of sound.
Mr.Riviera Expert
Name : Matthew Age : 37 Location : Florida Joined : 2007-01-17Post Count : 4394 Merit : 101
Subject: Re: supercharger whine Wed Jul 30, 2008 10:27 am
BillBoost37 wrote:
Weather and air density also have a bearing on the amount of sound.
engine temp plays a part too. cold start-up and 200* coolant sounds like 2 different engines, and the whine pitch and rpm changes too. it also depends on where you drive and what the sound can reverberate off of. i love driving next to a wall on the driver side, let the car get into 3rd gear and romp on the peddle making the s/c scream but letting off right before the downshift
_________________ 1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
turtleman Expert
Name : Codith Age : 36 Location : Villa Park, IL Joined : 2007-02-08Post Count : 3671 Merit : 140
Subject: Re: supercharger whine Wed Jul 30, 2008 11:20 am
In high school auto when we were doing superchargers, we hooked an m90 up to the alternator tester to spin it. It was actually part of the lab. The sound that came out of it was much louder than the whine. It was a very low sound actually, kind of like a propeller aircraft engine at low rpm. But ya if you have the blower off the manifold, that sound is entirely different.
T Riley Guru
Name : Travis Age : 34 Location : Minnesconsin Joined : 2007-02-08Post Count : 5127 Merit : 10
In high school auto when we were doing superchargers, we hooked an m90 up to the alternator tester to spin it. It was actually part of the lab. The sound that came out of it was much louder than the whine. It was a very low sound actually, kind of like a propeller aircraft engine at low rpm. But ya if you have the blower off the manifold, that sound is entirely different.
didn't you weld shut you silencers on your ported superairphucker? did it make a differance?
Shintsu Expert
Name : Shintsu Joined : 2007-10-14Post Count : 2979 Merit : -16
Subject: S/C whine Wed Nov 12, 2008 3:53 am
I've noticed from other 3800 videos that mine sounds odd. Please compare mine:
Comparatively to this (Thought this was Corey's and judging from the Regal avatar I'll say it is, however it sounds like this has a pulley and a CAI because the GTP sounded a lot like this with those mods)
and to this (Same car)
Both of those are how I'd love for mine to sound! I don't want to hear the motor so much as I want to hear S/C. I can't seem to find the stock S/C sounds I hear, but all the other cars don't sound like their motors are so loud like mine. This video is obviously of a Series III 3800 S/C but more like what I mean in that the motor seems more audible than the S/C stock (But mine isn't quite this bad). I would like the end result of that loud S/C.
Is there anything wrong with my motor/supercharger or do I just need a CAI/FWI to make it sound like that? It just seemed to me like more of the stock ones sound louder than my essentially stock one.