stock resonator restrictive ???
Thread Starter
Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
stock resonator restrictive ???
is the stock resonator on a '93 very restrictive? I was going to remove it and add a X pipe. I know the X pipe will help but how much flow does the resonator restrict? any ideas on a X pipe that doen't cost $200.00. seems high for such a small piece of pipe to me.
Intermediate
Joined: Nov 2002
Posts: 40
Likes: 0
From: vancouver bc
i have 92 and looked into exhaust options. first i read that the stock lt1 exhaust only gave up about 10 hp (at the wheels i believe) to the aftermarket ones. also i read that stock the exhaust back pressure is 10 inches of mercury at the 300hp peak at 5000 rpm (this is in march 1994 corvette fever page 50 )
in any case at 175000 km (109 000) miles i replaced stock system and installed flowmaster cat back system. the sound difference alone is worth it;
now if you remove the resonator the interior noise may be unbearable;
if you are looking for more hp and it is legal where you are at why not delete the cats and install appropriate chip
in any case at 175000 km (109 000) miles i replaced stock system and installed flowmaster cat back system. the sound difference alone is worth it;
now if you remove the resonator the interior noise may be unbearable;
if you are looking for more hp and it is legal where you are at why not delete the cats and install appropriate chip
Race Director
Joined: Feb 2003
Posts: 11,672
Likes: 20
From: Lake Wylie SC
I don't think your resonator is very restrictive at all. I put muffler elims on my 92 and it was quite loud. To me loud is not very restrictive. I know, this is not very scientific, but I think you'll find that 92-96 exhausts are quite good.
Racer
Joined: Jul 2004
Posts: 285
Likes: 0
From: San Diego CA
For what its worth here I did remove my resonator (95 MN6). Its a straight thru design. I installed a Magnaflow X-pipe and the only real difference is in the sound. There is less resonance in cabin and I can here the exhaust a little bit better. No hp gains as far as I can tell.
Pro
Joined: Jul 2003
Posts: 718
Likes: 0
From: Winnebago IL
For what its worth here I did remove my resonator (95 MN6). Its a straight thru design. I installed a Magnaflow X-pipe and the only real difference is in the sound. There is less resonance in cabin and I can here the exhaust a little bit better. No hp gains as far as I can tell.
thx
Pro
Joined: Jul 2003
Posts: 718
Likes: 0
From: Winnebago IL
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
There was a post with a picture of the insides of the resonator on here a while back. If I remember correctly the inside pipe diameter was very small. I'm sure someone else can respond with the exact pipe size. An x-pipe will not increase the sound, at least on mine it didn't.
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Le Mans Master
Joined: Apr 2005
Posts: 6,413
Likes: 9
From: The Old Dominion
FWIW: http://www.zr1specialist.com/HAT%20W...ckpressure.htm
I upgraded to the LT4 resonator on my car, in addition to a muffler change. Though the '90-92 LT5 resonator is a lot narrower than the LT1/4 resonator.
I upgraded to the LT4 resonator on my car, in addition to a muffler change. Though the '90-92 LT5 resonator is a lot narrower than the LT1/4 resonator.
