ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 11-27-2009   #1
Hammer
 
Hammer's Avatar
 
Join Date: Apr 2006
Location: Ideho
Posts: 2,647
Talking Re: 1994 Mufflers

Quote:
Originally Posted by tomtom72 View Post
I like those muffler tips. I think they look cool!

It doesn't sound overly loud either. How's is the resonance?
There isn't any resonance pre se', nothing like the B&B. You get a little, way down low, around 1200 to 1400 or so. This system never rattles you out of the car like the others. PLus if you look around, I think you get a Flowmaster for around $800 or less shipped.
Hammer is offline   Reply With Quote
Old 11-27-2009   #2
HAWAIIZR-1
Guest
 
Posts: n/a
Default Re: 1994 Mufflers

Quote:
Originally Posted by Hammer View Post
There isn't any resonance pre se', nothing like the B&B. You get a little, way down low, around 1200 to 1400 or so. This system never rattles you out of the car like the others. PLus if you look around, I think you get a Flowmaster for around $800 or less shipped.

Sound great John, thanks for sharing.
  Reply With Quote
Old 11-28-2009   #3
tomtom72
 
tomtom72's Avatar
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,609
Default Re: 1994 Mufflers

Thank you John for the reply!

I think I may have to investigate the flowmaster web site.

I just really like the look of the exit tips on your system, they kind of remind me of the Callaway exit tips. To me, the "oval" type exits just don't do it for me on a C4. I like the 90 stock tips, the LT1 tips, and the ones you have.


Tom
__________________
1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member
tomtom72 is offline   Reply With Quote
Old 11-28-2009   #4
Hammer
 
Hammer's Avatar
 
Join Date: Apr 2006
Location: Ideho
Posts: 2,647
Talking Re: 1994 Mufflers

Quote:
Originally Posted by Hammer View Post
There isn't any resonance pre se', nothing like the B&B. You get a little, way down low, around 1200 to 1400 or so. This system never rattles you out of the car like the others. PLus if you look around, I think you get a Flowmaster for around $800 or less shipped.
Actually this system at Summit Racing is $655.95 plus $15.00 oversize charge and $11.95 handling. So total of $682.90 to your door. Check Performance Peddler, they might have it cheaper. Pretty good value for a nice sounding exhaust. It's not stainless steel though, so get some of the high temp paint too. I used the Design Engineering paint from Summit and it has held up very well.

http://www.summitracing.com/parts/FLO-17115/
http://www.summitracing.com/parts/DEI-010301/
http://www.summitracing.com/parts/DEI-010302/



Hammer is offline   Reply With Quote
Old 11-29-2009   #5
tomtom72
 
tomtom72's Avatar
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,609
Default Re: 1994 Mufflers

John, that looks sweet. Was the OEM system made from a low percentage s/s alloy, or was it aluminum + steel?

While I was researching header coatings I ran across a vendor that said I should coat the entire exhaust system as it would maintain the heat content all the way down the line to the tips. It kind of made sense to me? I was thinking about the trouble I could have passing emission's tests with the way the hi flow cats don't stay hot enough at low load situations.
__________________
1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member
tomtom72 is offline   Reply With Quote
Old 11-29-2009   #6
Hammer
 
Hammer's Avatar
 
Join Date: Apr 2006
Location: Ideho
Posts: 2,647
Talking Re: 1994 Mufflers

Quote:
John, that looks sweet. Was the OEM system made from a low percentage s/s alloy, or was it aluminum + steel?
Really can't say, maybe someone else will know.

Quote:
While I was researching header coatings I ran across a vendor that said I should coat the entire exhaust system as it would maintain the heat content all the way down the line to the tips. It kind of made sense to me? I was thinking about the trouble I could have passing emission's tests with the way the hi flow cats don't stay hot enough at low load situations.
Coating the entire system would make sense, but I would think it would be VERY expensive. So I can understand why a vendor would want you to coat the system.
Hammer is offline   Reply With Quote
Old 11-30-2009   #7
mgbrv8
 
Join Date: Jul 2009
Location: Texas
Posts: 790
Default Re: 1994 Mufflers

That is one clean under carriage Hammer


Dave
mgbrv8 is offline   Reply With Quote
Old 11-30-2009   #8
Hammer
 
Hammer's Avatar
 
Join Date: Apr 2006
Location: Ideho
Posts: 2,647
Talking Re: 1994 Mufflers

Quote:
Originally Posted by mgbrv8 View Post
That is one clean under carriage Hammer

Dave
Thanks Dave,

As I think you already know, I try to keep a pretty clean car. Considering I don't have a lift I feel I do a pretty fair job. By the way, still waiting on pics of the painted car. I think everyone here would appreciate some shots of ol Bad *** #458.

Been reading your posts and that drain hole idea is great.
Hammer is offline   Reply With Quote
Old 12-01-2009   #9
jeasen
 
Join Date: Jul 2009
Location: Bonner Springs, Kansas
Posts: 34
Default Re: 1994 Mufflers

I am really glad I asked this question. There is some really great information that's been posted by other members of this board.

I just wanted to let everyone know what I found out about replacing the mufflers on my 1994 ZR1. I talked to tech support at Corvette Central and found out that the muffler eliminator pipes they sell for the 1992 - 1996 are 2 3/4" in diameter so they should match the diameter of the exhaust pipes on the ZR1. So this is an option for muffler replacement on my 1994, however, I am apprehensive because of the possible noise it will create due to eliminating the mufflers.

The tech guy said that all replacement mufflers for the later model C4 will have 2 3/4" diameter pipe. If I want mufflers he suggested their Magaflow replacement mufflers (Corvette Central part # 324337). He said that they were a straight thru design and have 2 3/4" diameter inlet pipe. The thing he could not tell me is if it would fit a ZR1. I am worried about the fit because the ZR1 is wider at the rear? Anyone have experience or thoughts on this?

I am going to check out a replacement muffler today by going to the local parts store and ordering one. If it looks like it will fit then maybe the Magaflows from Corvette Central is the way to go. The straight thru design should eliminate the bottle neck at the stock mufflers and maybe offer some quieting over the muffler eliminator pipes.

I will let you know what I find out. Jeasen
jeasen is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:31 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2025