Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

New X-pipe by Tom Coultier a work of art!

Thread Tools
 
Search this Thread
 
Old 03-18-2005, 08:35 AM
  #16  
Green Goblin
Pro
 
Green Goblin's Avatar
 
Join Date: Sep 2004
Location: Sandy, Ut.
Posts: 551
Likes: 0
Received 0 Likes on 0 Posts
Default

Tom did you do one for the early 16V cars yet?

Andy
Old 03-18-2005, 11:04 AM
  #17  
Pizza
Addict
Rennlist Member
 
Pizza's Avatar
 
Join Date: Mar 2003
Location: Houma, LA
Posts: 379
Likes: 0
Received 1 Like on 1 Post
Default

Tom,

Very nice! Will you be making any stainless steel versions and would it be possible to put the bung for the 02 sensor where the two pipes meet so it could get a reading from all cylinders?

Thanks
Old 03-18-2005, 11:20 AM
  #18  
Vlocity
Rennlist Member
 
Vlocity's Avatar
 
Join Date: Dec 2003
Location: Northwest, Ohio
Posts: 1,333
Likes: 0
Received 4 Likes on 4 Posts
Default

Tom:

I really like the looks of this single. I had been convinced that the X- pipe and dual 2.5 was the way to go......but I'm having second thoughts. I have sent you a PM. It looks like this would be MUCH easier than the dual 2.5 on my 85.

Regards,

Ken
Old 03-18-2005, 11:30 AM
  #19  
heinrich
928 Collector
Rennlist Member

 
heinrich's Avatar
 
Join Date: Jan 2003
Location: Seattle
Posts: 17,270
Received 5 Likes on 5 Posts
Default

Someone hide my wallet.
Old 03-18-2005, 12:38 PM
  #20  
Vlocity
Rennlist Member
 
Vlocity's Avatar
 
Join Date: Dec 2003
Location: Northwest, Ohio
Posts: 1,333
Likes: 0
Received 4 Likes on 4 Posts
Default

Heinrich:

You can send your wallett to me and I'll hold it for you.

Ken
Old 03-18-2005, 12:43 PM
  #21  
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Jim bailey - 928 International's Avatar
 
Join Date: Jul 2001
Location: Anaheim California
Posts: 11,542
Likes: 0
Received 3 Likes on 3 Posts
Default

Nope the 79s are NOT smog exempt the 1975 model year is the newest old car that is exempt. The law used to be rolling 30 years old BUT BIG BUT they passed a law which froze the exemption FOREVER at 1975...............that was a big compromise because many wanted to require smog testing again on ALL old cars The hotrod industry ,a big business ,in California spent a lot of money trying to retain the exemption for those 1975 and older......A recent development is going after custom car builders like Boyd Coddington who "manufacture" a new car with all new parts but title it as a 1932 Ford and install a crate no smog motor...Mostly the state wants the sales tax revenue based on the value of the car at $50k or $100k when the new old out of state title says it is a 32 Ford and the new owner claims he only paid $15,000 for the car when he registers it in California. Then there are issues with the smog , lack of DOT required equipment etc. The whole Kit Car Industry faces similar challenges. Even if you decide to "roll your own" at home build a new frame ,mold a body drop in an engine of your choice you face numerous issues when it comes to getting a title. As I recall California has issued a limited number of exemptions per year for homebuilts . They severely limited the building of Harley "clones" as well. The point is if you are manufacturing vehicles for sale in the US it matters little if you make 1 or 10 or one million ALL the rules and regulations still apply....DOT crash testing , smog , airbags , seat belts , lights , five MPH bumpers. Note that I DO NOT agree with this but it is the way it is...... So if you drop a engine into an exempt car in California it is best if the engine block is dated pre 1975 or California can require that all the emissions equipment for the year of the engine MUST be installed in your 1969 Camero. first they have to catch you.
Old 03-18-2005, 12:49 PM
  #22  
TeufelHei
Burning Brakes
 
TeufelHei's Avatar
 
Join Date: Jan 2003
Location: Seoul, Republic of Korea (the South one)
Posts: 1,149
Likes: 0
Received 0 Likes on 0 Posts
Default

I second Green Goblin...

I need an optimally federalised exhaust system for my S2 and that looks awesome.

Heinrich, just give in. I bought a quick draw holster for my wallet a long time ago. It's only really bad when you have almost all of your bank card numbers memorized. Then you know you've got a problem.
Old 03-18-2005, 01:38 PM
  #23  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,150
Received 82 Likes on 55 Posts
Default

I need a merge collector JUST like that so I can put on the rear mounted turbo fed by the one pipe.

How much for that merge? I can't very well expect, though, that the rest of the pipes could be located without the car there and knowing where exactly back there the turbo will be.

Mass flow is more then two pipes? Are you sure - even with just one or two high flow mufflers?


Originally Posted by Tom Cloutier
... 2 into 1 merge collector made to attach to MSDS headers. High temp paint and ceramic coating will go on tomorrow.

This system has several advantages over a dual pipe design:
It's less costly to build;
It weighs less;
It has a higher mass flow rate because there are fewer bends and because there is less inner wall surface area to cause friction.
Old 03-18-2005, 01:39 PM
  #24  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,150
Received 82 Likes on 55 Posts
Default

Tom Can you publically talk about the mass flow info on the single vs Dual?
Old 03-18-2005, 01:43 PM
  #25  
heinrich
928 Collector
Rennlist Member

 
heinrich's Avatar
 
Join Date: Jan 2003
Location: Seattle
Posts: 17,270
Received 5 Likes on 5 Posts
Default

Old 03-18-2005, 01:58 PM
  #26  
sublimate
Gluteus Maximus
Rennlist Member
 
sublimate's Avatar
 
Join Date: Nov 2004
Posts: 6,365
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by BrendanC
I need a merge collector JUST like that so I can put on the rear mounted turbo fed by the one pipe.
For my BOOSTASS project (rear mounted turbo), I'm looking to do a merge
collector that has one side of the 'Y' straight thru, and the other side coming
in at an angle (get ready for some lovely ASCII graphics):
Code:
     \    |
      \   |
       \  |
        \ |
         \|
          |
          |
          |
          |
          |
That way the exhaust pipe after the merge will be on one side of the tunnel,
leaving more room on the other side for the intake pipe coming back. I'll keep
the angle that they meet at the same as a normal 'Y'. One leg will be slightly
longer than the other, but I don't think this will affect performance.
Old 03-18-2005, 02:00 PM
  #27  
Tom Cloutier
Instructor
 
Tom Cloutier's Avatar
 
Join Date: May 2004
Location: Berkeley, CA
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

Jim,

Unfortunately, I expect you are right. When I got the non-op registration, the clerk said no smog would be required for this vehicle ('79) and when I inquired further she was kind of vague almost as though the DMV was enforcing the laws as they saw fit, i.e. in a more sensible and reasonable manner. Anyway I interpretted what she said in the way that made me happiest. When I go in for the full registration I will undoubtedly be disappointed.

I suppose there are unpleasant penalties for "creating" ones own pink slips. "Yes ma'am, it is a very rare 1974 5.0L twin turbo Porsche 928."

My question is, "Who's runnng this joint anyway? Us or them?" Perhaps it's time to have some representation of the citizenry.

Tom Cloutier
Old 03-18-2005, 02:06 PM
  #28  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,150
Received 82 Likes on 55 Posts
Default

Tom - I was thinking of the intake pipe placement. I think in that tunnel it would be too close to the exhaust. I was thinking of right next to the passenger frame rail stamping, inboard, and then somehow into the engine bay. Cooler, and wouldn't be too bad with clearance.
Old 03-18-2005, 02:06 PM
  #29  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,150
Received 82 Likes on 55 Posts
Default

I had a chance to stare at the underside of my 78 for a while. Quite a while.
Old 03-18-2005, 02:20 PM
  #30  
mspiegle
Three Wheelin'
 
mspiegle's Avatar
 
Join Date: Nov 2003
Location: Los Angeles, CA
Posts: 1,577
Likes: 0
Received 0 Likes on 0 Posts
Default

I checked this at one point in time, and the DMV allows 500 registrations every year for "specially constructed cars". I actually checked the website within the first week of January and of course, all of the spots were full already.

Just out of curiosity... if CA continues to tighten the smog laws down, wouldn't that hurt the entire car performance industry in CA? What if those tuners/builders moved and took their business elsewhere? Is it a big enough industry for CA to care about and not screw over?


Originally Posted by Jim bailey - 928 International
Nope the 79s are NOT smog exempt the 1975 model year is the newest old car that is exempt. The law used to be rolling 30 years old BUT BIG BUT they passed a law which froze the exemption FOREVER at 1975...............that was a big compromise because many wanted to require smog testing again on ALL old cars The hotrod industry ,a big business ,in California spent a lot of money trying to retain the exemption for those 1975 and older......A recent development is going after custom car builders like Boyd Coddington who "manufacture" a new car with all new parts but title it as a 1932 Ford and install a crate no smog motor...Mostly the state wants the sales tax revenue based on the value of the car at $50k or $100k when the new old out of state title says it is a 32 Ford and the new owner claims he only paid $15,000 for the car when he registers it in California. Then there are issues with the smog , lack of DOT required equipment etc. The whole Kit Car Industry faces similar challenges. Even if you decide to "roll your own" at home build a new frame ,mold a body drop in an engine of your choice you face numerous issues when it comes to getting a title. As I recall California has issued a limited number of exemptions per year for homebuilts . They severely limited the building of Harley "clones" as well. The point is if you are manufacturing vehicles for sale in the US it matters little if you make 1 or 10 or one million ALL the rules and regulations still apply....DOT crash testing , smog , airbags , seat belts , lights , five MPH bumpers. Note that I DO NOT agree with this but it is the way it is...... So if you drop a engine into an exempt car in California it is best if the engine block is dated pre 1975 or California can require that all the emissions equipment for the year of the engine MUST be installed in your 1969 Camero. first they have to catch you.


Quick Reply: New X-pipe by Tom Coultier a work of art!



All times are GMT -3. The time now is 05:46 PM.