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Techical Discussions => General Tech => Topic started by: 69newyorker on October 20, 2009, 05:50:17 PM

Title: 69 new yorker dual exhaust conversion help
Post by: 69newyorker on October 20, 2009, 05:50:17 PM
hello,  im  new  here,  i  have  a  question  for  you  good  people  .    I  have  a  69  new  yorker  im  converting  in  to  dual  exhaust,   I  have  the  correct  hp  c  body  exhaust  manifolds,  i  have  the  down  pipes, extention,  pipes,  mufflers,  and  tail,  Okay  my  problem  is  how  to  get  the  down  pipe, on  the  drivers  side  in, dose  it  go around  the  torsion bar, behind  the  torsion  bar,  or up  close  to  the  stering, Im  at  a  loss, dose  anyone  have  a  picture  i  can  look  at,  Ive  tryed  to  find  one  all  over  the  web,  nothing.  Any  help  would  be  appt,  thanks   
Title: 69 new yorker dual exhaust conversion help
Post by: Steve on October 20, 2009, 06:06:22 PM
The guy who can probably answer that is either 68CBarge or HemiFury.  Possibly Snotty too.
 
Let me look on the main site and see if I have a picture of that.  Seems to me I do.
 
Those guys are regulars, so check back in a day or so.
 
In the mean time
 
WELCOME!
Title: 69 new yorker dual exhaust conversion help
Post by: Steve on October 20, 2009, 06:29:51 PM
I just went through a few possibilities.
 
It seems to me it goes on the outside of the torsion bar, and yes it is close to the steering box.
 
I would, if I were you, install an oil cooler in the power steering return line.
 
I haven't done one of those in years, but I will be on my Fury Vert soon.
Title: 69 new yorker dual exhaust conversion help
Post by: Snotty on October 20, 2009, 08:27:57 PM
Thanks for the kudos Steve, but my car was originally a 383 2 bbl with a single exhaust.  My current system is custom.
 
Welcome '69!  I assume you have the 350 HP 440 since you are adding the HP manifolds.   I would recommend against using those as they make it a real pain to change your spark plugs.  However, they are cheaper than trying to go with a custom header.
 
Tell us about your car - 2 door, 4 door?
Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 20, 2009, 08:41:35 PM
The pipes go inside the torsion bars-the one on the drivers side should have a fairly tight turn right at the top where it bolts to the manifold. (see pics)
(http://www.moparfins.com/forum/attachments/171/2.jpg)
(http://www.moparfins.com/forum/attachments/171/3.jpg)

Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 20, 2009, 09:00:45 PM
Here are a couple more pics:

(http://www.moparfins.com/forum/attachments/171/4.jpg)
(http://www.moparfins.com/forum/attachments/171/5.jpg)

Title: 69 new yorker dual exhaust conversion help
Post by: 69newyorker on October 21, 2009, 04:34:24 AM
Thanks  for  all  the  information,   pics  are  great,   its  a  4  door  hardtop,  yes  it  is the  hp  440,  with  hp  manifolds,  The  car  is  really  in  great  shape,  all  origanl  paint,  F3   surf  green  poly,  never  any  bondo,  97,  thousand  miles,   seats  have  a  few  tears,  but  all  still  there, 
Title: 69 new yorker dual exhaust conversion help
Post by: Steve on October 21, 2009, 06:59:01 AM
it's grean. .  .
 
What a surprise.  LOL
Title: 69 new yorker dual exhaust conversion help
Post by: Leaburn Patey on October 21, 2009, 07:09:07 AM
(http://www.cbodydrydock.com/e107_images/emoticons/welcome.gif) (http://javascript:addtext%28%20!welcome%29)(http://www.cbodydrydock.com/e107_images/emoticons/welcome.gif) (http://javascript:addtext%28%20!welcome%29)
Yeah,what Kraut said.
I have the TTI system on my 68 New Yorker and it fits like a glove.Quiet on the highway at cruising speeds and barks when thrust upon.
TTi says you may need to use an adaptor for the trans linkage--but I did not need to do that.
Make sure you disconnect the battery before installing the front pipe!! (I got zapped when the pipe touched the starter,LOL!!)
 
 
 
Title: 69 new yorker dual exhaust conversion help
Post by: Butch Houghton on October 22, 2009, 05:44:51 AM
I have to disagree here,   the C-bodies go outside the T-bars.    My 70 SF still has it's original headpipes ( at least the first 3 feet! ) & they go outside.

If you look at the first 3 pics that looks like a B-body,  the notches in the trans X-member are inboard as all A-B-E's are.    The bottom pic with the headers is a C-body,  look at  the hard turn  the headpipes make to go out to the notches in the X-member.  All the C-bodies have the notches in the X-member outside of the T-bars.   All of them we've had done here are outside & that's either with the lo-po or High-po manifolds.

Butch


Title: 69 new yorker dual exhaust conversion help
Post by: 69newyorker on October 23, 2009, 04:26:05 PM
Thanks  for  all  of  everyones  help,   I  got  the  pipes  on,  It  sounds  awsome,   The old  440,  really   roars. 
Title: 69 new yorker dual exhaust conversion help
Post by: Steve on October 23, 2009, 05:13:55 PM
Cool
 
Outside the bar like Butch and I said? or Inside?  Save me 5 minutes when I go to do this myself (http://www.moparfins.com/forum/smileys/smiley4.gif)
Title: 69 new yorker dual exhaust conversion help
Post by: Ken on October 23, 2009, 11:29:55 PM
Here's a shot of the original single exhaust on Chaz...note the left side goes inside the t-bar and the right side goes outside the t-bar.  I'm pretty sure that would remain the same for the fusey C's since the basic under-pining platform wasn't changed that much, but it is a guess on my part, too, so I COULD be wrong. (http://www.moparfins.com/forum/smileys/smiley24.gif)

(http://www.moparfins.com/forum/attachments/13/Chaz-suspension-brakes-5-01-08_014.jpg)


Title: 69 new yorker dual exhaust conversion help
Post by: Steve on October 24, 2009, 07:47:40 AM
He has Hipo exhaust manifolds.  The rules change
Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 24, 2009, 02:49:37 PM






Quote from: HemiFury
I have to disagree here,   the C-bodies go outside the T-bars.    My 70 SF still has it's original headpipes ( at least the first 3 feet! ) & they go outside.

If you look at the first 3 pics that looks like a B-body,  the notches in the trans X-member are inboard as all A-B-E's are.    The bottom pic with the headers is a C-body,  look at  the hard turn  the headpipes make to go out to the notches in the X-member.  All the C-bodies have the notches in the X-member outside of the T-bars.   All of them we've had done here are outside & that's either with the lo-po or High-po manifolds.

Butch

The first two pics are my '68 Newport with HP manifolds and TTI pipes, the third is a B body, the last is a '68 300, and the pics don't lie.  All the pipes go Inside the torsion bars where they meet the manifolds - they do eventually go below, then outside the torsion bar so they can pass through the cutouts in the cross member.  I guess it all depends on who makes the pipes because it looks like you could bend them to go on either side of the bar.

krautmaster2009-10-24 20:49:58
Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 24, 2009, 04:11:22 PM
Here  are a few more pics to illustrate the above post:

(http://www.moparfins.com/forum/attachments/171/drivers_side_a.jpg)
(http://www.moparfins.com/forum/attachments/171/passenger_a.jpg)

Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 24, 2009, 04:14:28 PM
(http://www.moparfins.com/forum/attachments/171/Drivers_side_c.jpg)
(http://www.moparfins.com/forum/attachments/171/passenger_c.jpg)

Title: 69 new yorker dual exhaust conversion help
Post by: Butch Houghton on October 25, 2009, 11:18:16 AM
The third pic is the one that threw me & now that I look closer that's a Hemi B-body.

The others I see how you did it, nothing wrong with that routing but I prefer to go outside straight to the notches.   The turns aren't as tight going that way either and the pipes stay completely away from the starter & trans,  gives lotsa room to work if you have to.

If I could get to the car I'll try to take an underside pic of the originals & how they route.

In the end there's plenty of room under for going either way.

Butch


Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 25, 2009, 11:46:18 AM
I think TTI bends their C body pipes that way to save $$ - the head pipes appear to be bent very similarly to B body pipes, only kicked outward at the ends to go through the cross member cut outs.. 

On my Newport's passenger side there isn't enough room to run the pipe straight down from the manifold to the outside of the torsion bar unless it is bent far to the rear before it goes down. It looks like it was easier for them to run it down inside the torsion bar before kicking it to the outside. The drivers side could easily have been made to go on the outside of the bar and would not have that sharp bend right where it bolts to the manifold.

Title: 69 new yorker dual exhaust conversion help
Post by: Steve on October 25, 2009, 02:14:57 PM
I was going to say, TTI does them different than anyone else.  I agree with Butch though, that sharp bend could impair the flow a tad.  The only way to compensate for that is to make larger pipes.
 
Since we don't know what he has, it's a tough call.  But the stock did go on the outside of the T Bar.
 
I can't say I am thrilled with the pipe going under the T Bar.  Looses ground clearence, and could heat up the T Bar.  They're sensitive enough, as it is, to scratches and heat.  If you look at the cross member further back, it's notched OUTSIDE of the T Bar to allow closer body clearences.
 
Just looking at it from an engineering standpoint
Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 25, 2009, 04:57:20 PM
  I don't think the way TTI has the pipes bent restrics the flow much if at all. They are all mandrel bent and fairly smooth. The old exhaust that was on the car was a rusty cobbled together mess of parts that had been spliced and welded together over the years...the TTI system added 40 rear wheel horsepower before I put in a bigger cam.

Title: 69 new yorker dual exhaust conversion help
Post by: Stitcherbob on October 25, 2009, 09:54:00 PM
I think it's done that way so they have a short H pipe....my Imp has the pipes done like Butch said and the H pipe would have to be as wide as the crossmember almost....

Title: 69 new yorker dual exhaust conversion help
Post by: Snotty on October 26, 2009, 02:14:07 PM
[/QUOTE]
 
Hey Moe, what's with that stain on your trans pan?  Were you cooking doughnuts once?
Title: 69 new yorker dual exhaust conversion help
Post by: Rich on October 26, 2009, 02:42:28 PM
 I found a pic of some badly bent muffler shop duals on a '66-68 C body that are installed outside the torsion bars- there doesn't appear to be near enough room to fit the big (2 5/8" or 3 1/8" O.D.) TTI pipes through the drivers side.
(http://www.moparfins.com/forum/attachments/171/muffler_shop_duals.jpg)


Title: 69 new yorker dual exhaust conversion help
Post by: Snotty on October 30, 2009, 01:50:24 PM
[/QUOTE]
 
Hello Boys.  I was doing some tweaking on my Newport today.  Looking for something else I saw my exhaust header pipes.
 
They are ...
 
(drum roll)
 
... outside of the torsion bars.
 
I did say earlier that my exhause is custom, and that is so.  The driver's side is outside the bar and it's a total replacement.
 
However, my exhaust man used the factory header pipe on the passenger and it, too, is outside the bar.
 
Since the subject is a '69 New Yorker 440, which would be neraly identical to my '70 Newport 440, I'd go with whomeever said "outside" and say, "That is correct."