True Dual Dyno for 97 WS6
Registered User
Joined: Apr 2001
Posts: 1,132
From: Florida
Definetly one of the nicer True Duals I have seen on a 4th F-Body. Nice Job. 
Do you have a picture of the back end of the car (like bumper view)? I wanted to see if you can see each muffler from the back of the car.
Also does your Mufflers scrape or hit when backing out of a steep driveway?
Thx,
Claude
Do you have a picture of the back end of the car (like bumper view)? I wanted to see if you can see each muffler from the back of the car.
Also does your Mufflers scrape or hit when backing out of a steep driveway?
Thx,
Claude
Registered User
Joined: Sep 2003
Posts: 707
From: Dallas
Originally posted by brain
Your car was impressive BEFORE the dual exhaust, now it just sounds even better I bet! 298 with manifolds, without knowing any better I'd guess that was an LT4. I know the SS Camaros in 97 were, what about the WS6? Anywho, great numbers and post some sound clips!
Your car was impressive BEFORE the dual exhaust, now it just sounds even better I bet! 298 with manifolds, without knowing any better I'd guess that was an LT4. I know the SS Camaros in 97 were, what about the WS6? Anywho, great numbers and post some sound clips!
Nice true dual exhaust, definitely the best I've ever seen on an F-body.
Registered User
Joined: Jun 2002
Posts: 2,456
From: sarasota, fl
Originally posted by jmzlt1
How can true duals be too much for bolt on cars if corvettes have true dual exhaust from the factory?
How can true duals be too much for bolt on cars if corvettes have true dual exhaust from the factory?
i have them, so obviously im not one of them.
Registered User
Joined: Apr 2001
Posts: 2,195
From: Springfield, IL
*i am not doubting your numbers at all, i'm impressed with them* but....
the famous question and i'm surprised it has not been asked yet.....are those numbers SAE corrected?
what kind of dyno was it pulled on? is the car on a stock tune still?
nice numbers tho either way it rolls!!
Steve
EDIT: ok i see the HPP+.....your numbers are about right on i would think seeing as the 1.6rr's should net you about the same power as a set of headers on an otherwise stock car!
i put down ruffly the same numbers as you did with LT's and no roller rockers, but you had about 5 more rwtq then me
NEway nice stuff got any track times?
btw thats one hell of a clean under carriage, you ever drive that thing? nice clean looking exhaust man
the famous question and i'm surprised it has not been asked yet.....are those numbers SAE corrected?
what kind of dyno was it pulled on? is the car on a stock tune still?nice numbers tho either way it rolls!!
Steve
EDIT: ok i see the HPP+.....your numbers are about right on i would think seeing as the 1.6rr's should net you about the same power as a set of headers on an otherwise stock car!
i put down ruffly the same numbers as you did with LT's and no roller rockers, but you had about 5 more rwtq then me
NEway nice stuff
got any track times?btw thats one hell of a clean under carriage, you ever drive that thing? nice clean looking exhaust man
Last edited by simple; Feb 1, 2004 at 09:31 PM.
Thread Starter
Registered User
Joined: Jan 2004
Posts: 1,406
From: Downey, CA
I just picked up a new digital camera (Nikon Coolpix 5700)
and it can make QuickTime videos so I will be putting up a
short video soon. Got to figure out how to use it first.
I have no trouble with the exhaust scraping in the back. I
sprayed the mufflers black so you barely see them. I'll make
sure the video has a nice shot of the back. The 315s make
the back look nice too.
I have not had the car at the track. Since it's a convertible
the motivation is just not there. The convertible is one of
those wife compromises. But I'm not complaining as I did
get the car I wanted, just optioned out a bit different.
The exhaust system does not have an "h" or and "x", it has
a section of the parallel pipes with a window in a siamesed
section about 1" by 12" long. I have a picture of it and will
try to post it.
The dyno HP was not SAE corrected. The temp was 60.2 F
and the pressure was 30.11" Hg.
and it can make QuickTime videos so I will be putting up a
short video soon. Got to figure out how to use it first.
I have no trouble with the exhaust scraping in the back. I
sprayed the mufflers black so you barely see them. I'll make
sure the video has a nice shot of the back. The 315s make
the back look nice too.
I have not had the car at the track. Since it's a convertible
the motivation is just not there. The convertible is one of
those wife compromises. But I'm not complaining as I did
get the car I wanted, just optioned out a bit different.
The exhaust system does not have an "h" or and "x", it has
a section of the parallel pipes with a window in a siamesed
section about 1" by 12" long. I have a picture of it and will
try to post it.
The dyno HP was not SAE corrected. The temp was 60.2 F
and the pressure was 30.11" Hg.
Last edited by truedualws6; Feb 1, 2004 at 09:33 PM.
Registered User
Joined: Aug 2002
Posts: 662
From: dallas, tx, usa
That is a very nice set-up, thanks for the post. :thumbsup: I'd personally like see see some pics from the top-side as well, I'm partial to Silver. 
In your original post it sounds like you did your homework about the CARB approved OBD2 cats. I didn't worry about CARB here but I'm always consciensious that I moved the cats when I did my headers so I'm wondering how that was addressed in the "CARB" approval.
In your original post it sounds like you did your homework about the CARB approved OBD2 cats. I didn't worry about CARB here but I'm always consciensious that I moved the cats when I did my headers so I'm wondering how that was addressed in the "CARB" approval.
Banned
Joined: Jan 2002
Posts: 1,935
From: Mobile, Ala..USA
Justy out of curiosity, why didnt you put a 4" mufflex on the car, gains would have to had been similar for a WHOLE lot less money. Or is a Mufflex made for that particular setup? SLP two on the left I would have been a good choice also IMO. Just askin' no flames meant or intended.
Big Dave
Big Dave
Super Moderator
Joined: May 1999
Posts: 4,060
From: Inverness, FL
Originally posted by truedualws6
The exhaust system does not have an "h" or and "x", it has
a section of the parallel pipes with a window in a siamesed
section about 1" by 12" long. I have a picture of it and will
try to post it.
The exhaust system does not have an "h" or and "x", it has
a section of the parallel pipes with a window in a siamesed
section about 1" by 12" long. I have a picture of it and will
try to post it.
Registered User
Joined: Feb 2000
Posts: 1,009
From: Cincinnati, OH, USA
The Internet sure is great for helping us with our hobbies! 
As for mufflers that won't be as loud, if you can fit them in, try a pair of DynoMax UltraFlows. They flow the same or better (yes, it's been shown) than no muffler, and aren't too loud. They would be much quieter than DynoMax' bullets.
As for mufflers that won't be as loud, if you can fit them in, try a pair of DynoMax UltraFlows. They flow the same or better (yes, it's been shown) than no muffler, and aren't too loud. They would be much quieter than DynoMax' bullets.
Thread Starter
Registered User
Joined: Jan 2004
Posts: 1,406
From: Downey, CA
Originally posted by FASTFATBOY
Justy out of curiosity, why didnt you put a 4" mufflex on the car, gains would have to had been similar for a WHOLE lot less money.
Big Dave
Justy out of curiosity, why didnt you put a 4" mufflex on the car, gains would have to had been similar for a WHOLE lot less money.
Big Dave
a single pipe. It loses that traditional musclecar
sound like my 68 GTO had. So I did it for the sound
primarily. The research, calculations, etc. done to
back up the decision also showed that a 2.5" dual
performed better than a 3" single and equal to a
3.5" single. Plus I did not like the factory dual cat
arrangement.
The mufflex 4" is about $500 and would have done
nothing to resolve my dissatisfaction with the cats.
Add the $225 cost each for the cats and the mufflex
setup would be $950. This also would not solve the
look aspect. The Trans Am has a molded rear that is
designed for two exhaust outlets.
Thread
Thread Starter
Forum
Replies
Last Post
tdigger9899
General 1967-2002 F-Body Tech
9
Sep 7, 2015 10:56 AM