3" exhaust and failing aux ports

Silver86 · 08-12-2010, 01:27 PM

Quote:

Originally Posted by NYsNumba1Man

Location of actuators? Would there be a BIG notice? My car gets to redline without any problems at all, it doesn't strain or hesitate or anything.

left side of the engine bay. attached to the LIM, above exhaust manifold. cant miss them.

bryant · 08-12-2010, 01:49 PM

my 87 na was open header no exhaust and was so loud you had to scream at the person next to you just to talk to them. at idle
at 3000rpm the hat on my head was vibrating like i had two 15's.
i loved the way it sounded but the cops sure didnt.

funny thing when you would drive by people they would look at you and cover there ears.lol

project86 · 08-12-2010, 05:51 PM

Quote:

Originally Posted by bryant

my 87 na was open header no exhaust and was so loud you had to scream at the person next to you just to talk to them. at idle
at 3000rpm the hat on my head was vibrating like i had two 15's.
i loved the way it sounded but the cops sure didnt.

funny thing when you would drive by people they would look at you and cover there ears.lol

haha i drove mine for 2 days right off the presilencer... i know exactly what you mean. She was settin off car alarms

NoDOHC · 08-12-2010, 06:48 PM

I had RB headers feeding through a straight pipe to dual Dynaflow mufflers and with a stock port, it wasn't loud at all.

With the streetported 4-port, I had to add a presilencer.

If the headers are really thin, you will get a loud exhaust, thick headers are your friend.

diabolical1 · 08-12-2010, 07:28 PM

Quote:

Originally Posted by NoDOHC

... thick headers are your friend.

where a rotary's exhaust noise is concerned, thick pipes in general are your friend.

NYsNumba1Man · 08-12-2010, 09:54 PM

Alright, i'll check out my aux ports tomorrow then.

If i DO have an exhaust leak at my headers will replacing with RB headers make it sound better? or will it just be louder?

Phoenix7 · 08-12-2010, 11:38 PM

Quote:

Originally Posted by josh18_2k

the stock manifold really quiets things down. With a header it will indeed be loud as shit. I had a greddy power extreme dual exhaust (two very big cans) and it was still intolerable. I would never put a header on a daily driver

I have RB headers, midpipe and HKS old-school catback on our NA...we DDed that car until we got the bimmer. You CAN have straight pipes on your NA but you need to have a GOOD catback to quiet it down.

Before the HKS (52mm) catback we had Apex-i N1 Duals and they were definitely LOUD and intolerable...to the point that we bought earplugs. Maybe I'm just too old for the loud exhausts?

If you have an S4 you also have to make sure you get the S4 midpipe that incorporates the "split-air pipe" so you can actuate the Aux ports via backpressure.

My5ABaby · 08-12-2010, 11:43 PM

Quote:

Originally Posted by Phoenix7

Also make sure you get the S5 midpipe that incorporates the "split-air pipe" so you can actuate the Aux ports.

S4...

Phoenix7 · 08-13-2010, 12:04 AM

yeah, I edited it to reflect right info. I wonder how the RB rotary mufflers sound on open pipes.

Also, the HKS catback I have doesn't shoot flames...Just thought I'd throw that out there. It really makes the NA quieter than open pipes but no fire.

NYsNumba1Man · 08-13-2010, 12:20 AM

^^Same. I get backfire but no flames......

Phoenix7 · 08-13-2010, 12:32 AM

Here's the HKS 52mm catback:

http://s256.photobucket.com/albums/h...=Trackday1.flv
^^Please ignore my commentary and listen to the sounds around 15 seconds in...that's as loud as the car was. I don't have any other sound clips but I'll make sure to get some once I finish installing the new motor.

OLD N1 Duals:

mnrthrt · 08-13-2010, 01:25 AM

Quote:

Originally Posted by Phoenix7

OLD N1 Duals:

Holy shit! ha Huge tips on those Apexi's. Wish I could have heard a sound clip of that. ha

project86 · 08-13-2010, 01:51 AM

Quote:

Originally Posted by mnrthrt

Holy shit! ha Huge tips on those Apexi's. Wish I could have heard a sound clip of that. ha

they are retarded loud. I had a single... it might have made me def

mnrthrt · 08-13-2010, 02:08 AM

ha One good thing about being in Afghanistan is that with all the low flying planes and rockets and other shit, I'm pretty much already def. lol HEADERS WITH NO EXHAUST HERE WE COME! hahaha j/k

Phoenix7 · 08-13-2010, 02:31 AM

it sounds like sex on wheels for about 10 minutes...then the drone at highway speeds vibrates the whole car and the insides of your head. Even at LOW RPMs the car was loud.

08-12-2010, 01:49 PM	#17
bryant Rotary Fan in Training Join Date: Feb 2008 Location: Montgomery, Al iTrader: (0) Posts: 31 Rep Power: 0	my 87 na was open header no exhaust and was so loud you had to scream at the person next to you just to talk to them. at idle at 3000rpm the hat on my head was vibrating like i had two 15's. i loved the way it sounded but the cops sure didnt. funny thing when you would drive by people they would look at you and cover there ears.lol __________________ 94T-78 (Want 500WHP)

08-12-2010, 06:48 PM	#19
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	I had RB headers feeding through a straight pipe to dual Dynaflow mufflers and with a stock port, it wasn't loud at all. With the streetported 4-port, I had to add a presilencer. If the headers are really thin, you will get a loud exhaust, thick headers are your friend. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

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08-13-2010, 02:08 AM	#29
mnrthrt cel=life story Join Date: Apr 2010 Location: blow iTrader: (0) Posts: 32 Rep Power: 0	ha One good thing about being in Afghanistan is that with all the low flying planes and rockets and other shit, I'm pretty much already def. lol HEADERS WITH NO EXHAUST HERE WE COME! hahaha j/k