Notices
911 Forum 1964-1989
Sponsored by:
Sponsored by: Intercity Lines, LLC

SSI/ Exhaust Questions

Thread Tools
 
Search this Thread
 
Old 02-08-2009, 10:21 PM
  #1  
gab997
Racer
Thread Starter
 
gab997's Avatar
 
Join Date: Feb 2007
Location: SW Florida
Posts: 325
Likes: 0
Received 0 Likes on 0 Posts
Default SSI/ Exhaust Questions

When I purchased the car it had ssi's installed. I drive the car primarily for track with occasional street driving. My question is are there other headers that would work better than the ssi's when coupled with the appropriate muffler? Eventually I will be changing from fi to pmo's in the future and did not know if that would change the thought process as well.
Old 02-08-2009, 10:35 PM
  #2  
theiceman
Team Owner
 
theiceman's Avatar
 
Join Date: Aug 2005
Location: Cambridge Ontario Canada
Posts: 26,995
Received 1,120 Likes on 802 Posts
Default

from what i have heard SSIs are very good , I wish i had some. I thought an SSi basically WAS a header.

not 100% though
Old 02-08-2009, 10:39 PM
  #3  
gab997
Racer
Thread Starter
 
gab997's Avatar
 
Join Date: Feb 2007
Location: SW Florida
Posts: 325
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by theiceman
from what i have heard SSIs are very good , I wish i had some. I thought an SSi basically WAS a header.

not 100% though
Yes they are headers, did not know if there was anything better suited for track setup.
Old 02-08-2009, 10:44 PM
  #4  
Steve Weiner-Rennsport Systems
RL Technical Advisor
 
Steve Weiner-Rennsport Systems's Avatar
 
Join Date: May 2001
Location: Portland Oregon
Posts: 11,871
Likes: 0
Received 64 Likes on 48 Posts
Default

The differences between headers and SSI's on a stock 3.0 are pretty small, but there are some things to consider.

Headers allow improved airflow over the heads and cylinders and for track use, this is an advantage. Lower cylinder head temps mean more power, lower oil temps, and extended longevity.

Headers allow a lot more flexibilty for track type muffler systems and those CAN make more power than a SSI/sport muffler combo.
Old 02-09-2009, 11:49 AM
  #5  
gab997
Racer
Thread Starter
 
gab997's Avatar
 
Join Date: Feb 2007
Location: SW Florida
Posts: 325
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Steve Weiner-Rennsport Systems
The differences between headers and SSI's on a stock 3.0 are pretty small, but there are some things to consider.

Headers allow improved airflow over the heads and cylinders and for track use, this is an advantage. Lower cylinder head temps mean more power, lower oil temps, and extended longevity.

Headers allow a lot more flexibilty for track type muffler systems and those CAN make more power than a SSI/sport muffler combo.
That is what I thought with header and different muffler would free up the exhuast system. I have looked at systems from Dansk and looks like good quality just not sure about the performance end.

Thanks,

Greg
Old 02-09-2009, 12:14 PM
  #6  
f4 plt
Rennlist Member

 
f4 plt's Avatar
 
Join Date: Jul 2007
Posts: 3,129
Received 157 Likes on 77 Posts
Default

I have SSi's and the Dansk muffler on my '83SC and I'm very happy with the performance and the sound. A quality set-up
Old 02-09-2009, 12:31 PM
  #7  
elpresidente
Racer
 
elpresidente's Avatar
 
Join Date: Nov 2007
Location: New Orleans, LA
Posts: 348
Likes: 0
Received 0 Likes on 0 Posts
Default

I have SSI's and a new M&K on the way. Just ordered them last week. I'm like a kid waiting for Christmas.
Old 02-09-2009, 12:33 PM
  #8  
Brads911sc
Racer
 
Brads911sc's Avatar
 
Join Date: Jul 2007
Location: Houston, TX
Posts: 477
Likes: 0
Received 0 Likes on 0 Posts
Default

I have SSI's and Dansk Sport on my 83. Sounds great. Like the setup.
Old 02-09-2009, 08:13 PM
  #9  
whalebird
Race Car
 
whalebird's Avatar
 
Join Date: Nov 2004
Location: Blue Ridge Mountains NC.
Posts: 3,993
Received 3 Likes on 3 Posts
Default

I like the SSI with a monty muffler. I have traked many cars with this set up and it works great. I also like the Danske stainless mufflers. Monty is my first pick.
Old 02-09-2009, 08:37 PM
  #10  
Steve Weiner-Rennsport Systems
RL Technical Advisor
 
Steve Weiner-Rennsport Systems's Avatar
 
Join Date: May 2001
Location: Portland Oregon
Posts: 11,871
Likes: 0
Received 64 Likes on 48 Posts
Default

Originally Posted by gab997
That is what I thought with header and different muffler would free up the exhuast system. I have looked at systems from Dansk and looks like good quality just not sure about the performance end.

Thanks,

Greg
Greg,

There are better performing mufflers for certain, but they will be considerably louder than the Dansk.
Old 02-09-2009, 09:50 PM
  #11  
gab997
Racer
Thread Starter
 
gab997's Avatar
 
Join Date: Feb 2007
Location: SW Florida
Posts: 325
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Steve Weiner-Rennsport Systems
Greg,

There are better performing mufflers for certain, but they will be considerably louder than the Dansk.
In my book louder is better, please share!
Old 02-09-2009, 11:16 PM
  #12  
earlyapex
Addict
Rennlist Member

 
earlyapex's Avatar
 
Join Date: Jan 2004
Location: Monterey, CA
Posts: 3,161
Received 62 Likes on 32 Posts
Default

I use European Racing Headers and a M&K muffler. The set up is very light and quiet. The car registers 94 dB measured 50' on the right of the exit of T5 at Laguna Seca. I have not compared other headers and mufflers on an engine dyno. My 3.0 L motor has PMO's and a very mild motor. This combination has a very nice hp and torque curve on a chassis dyno. The M&K muffler is very light, saving allot of weight versus a Dansk. You don't need heat for a track car do ditch the SSI's. Steve Weiner can provide you with the exhaust. I got mine from M&K and Smart Racing Products, who also make the Phase 9 mufflers.
Old 02-09-2009, 11:30 PM
  #13  
Ed Hughes
Rennlist Member
 
Ed Hughes's Avatar
 
Join Date: Jul 2002
Location: Bend, OR
Posts: 16,518
Received 80 Likes on 54 Posts
Default

I have a set of B&B headers (it's their mufflers that get the bad rap for quality) and a Flowmaster muffler. The sound is awesome, and the power ain't so bad either....

As to the M&K muffler mentioned above-the workmanship and pricing look good-but I've yet to see any data on power with one exception, and that wasn't good.
Old 02-09-2009, 11:58 PM
  #14  
earlyapex
Addict
Rennlist Member

 
earlyapex's Avatar
 
Join Date: Jan 2004
Location: Monterey, CA
Posts: 3,161
Received 62 Likes on 32 Posts
Default

Ed, please explain your comment on the M&K muffler in more detail.
Old 02-10-2009, 12:50 AM
  #15  
Chris M.
Rennlist Member
 
Chris M.'s Avatar
 
Join Date: Nov 2004
Location: Prospect, KY
Posts: 4,265
Received 96 Likes on 82 Posts
Default

It has always been my understanding that SSIs aren't the optimal size for a 3.2 and are better suited to the 3.0 engines but I'm sure Steve and others can correct me if I'm wrong.


Quick Reply: SSI/ Exhaust Questions



All times are GMT -3. The time now is 04:25 PM.