2024 Canadian Poncho Calendars are Now Available! CLICK HERE

 

 

Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Exhaust tips...


Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:
Exhaust tips...


Next week the 67 goes in for duals. The tips are very important to me in how they exit. From the side, I do not want to see any of the pipe as it runs along side the frame under the trunk pan. I think it should then turn down and out to the side directly under the backup lens...or should it turn straight down? I don't think straightbacks would suit it. 

Anyone have any shots of how duals should exit correctly on a 67?

I have a few shots here, some probably correct 67 mixed with other makes and years. Some members cars as well!

4479134175_0d2519480e_o.jpg

3198800293_e0b493855f_o.jpg

4527139150_c280949f9e_o.jpg

4527143922_70d5c933e6_o.jpg

3956536416_2fb5c088db.jpg

3875284063_a3056bc223.jpg

4526533999_7f2b82d651_o.jpg

4526538801_d60777f8ec_o.jpg

3956729374_1183c7c6ba_o.jpg


Finally, a rear view of my 67 with the behind the wheel factory single exit. I can imagine the full dual exit might actually have the same angle and position as seen here, just further back.

4526546259_c2a30ce315.jpg

Any thoughts or pictures of factory exits?

Cheers, Mark.


-- Edited by cdnpont on Friday 16th of April 2010 08:12:32 PM

__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Canadian Poncho Superstar!

Status: Offline
Posts: 7418
Date:

the 67 Canadian Pontiac service manual should have a drawing - there's one in the 70 book for mine.

__________________
70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:

Anyone have a scan of that 67 document? I don't have a 67 manual.

__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


A Poncho Legend!

Status: Offline
Posts: 20051
Date:

My 86 Monte SS had factory tail pipes that you describe as running straight back and exposed for about two feet or more under the fender line. They were stainless even back in 86. I painted them black at one time but then one day I got ou tthe emry cloth and polished them and that was it, they stayed that way ,never rusted looked fine.

Point of all of this is if you invest in the last two feet of stainless you can polish it and they will look good even if it is just that little downturn that is exposed.

__________________

Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:

I had a Dk Jade green 92 5.0 Lx Mustang Ray that had the cannons that you could see from the side. I used to be really fussy with them, pretty much getting down and going over them with neverdull quite often. They looked awsome and really were a defining feature of that car.

But on the big car I think they distract from that clean line running up from the rear wheel. I can't stand seeing that tail pipe on these big cars. At the risk of upsetting those who have it...I think it looks like the pipe has been mis-installed when it hangs down. More so when you see a big ugly clamp at the end before the turndown. I'll probably eat my words next week, but what I'll be asking for from the shop is;

Remove the heat riser.
Keep the pipes as tight to the floor as possible.
H pipe connector.
Mufflers mirror imaged between left and right.
Mufflers hang even as viewed from the back.
Tailpipes are concealed as much as possible until the turndown.
Nice reveal, good angle, even left to right as viewed from the back.

Not too much to ask?

4527314866_86fa19c573.jpg



__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Canadian Poncho Superstar!

Status: Offline
Posts: 7418
Date:

when I put duals on my cars, I made sure they looked as stock as possible.  The 350 cars had the exhaust on the left, whereas the 454 cars had it on the right.   Keep in mind the frames are drilled on both sides as they don't know which cars will have duals, etc.   

I used the proper frame brackets and proper hangers.   The local muffler shop used a tailpipe hanger that was close to the original, bolted in the proper holes.   The frame brackets aren't available, as they never wear out, so I used ones scavenged from the junk yards (69 & 70 used the same).  I got a new set of hangers for one car (not GM, but through the muffler shop), but that seemed to exhaust (forgive the pun) the supply.  So my other cars used scavenged hangers as well.  Scavenged pieces were sand blasted, then covered with a light coat of grease so they don't rust. 

I took a copy of the page from my manual that shows the proper routing, etc of the exhaust system in with the car to have everything done.

__________________
70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



A Poncho Legend!

Status: Offline
Posts: 35601
Date:

I had mine purposly pointed nice and "straight" to the sides   no curves to take away HP  hmm   they all look good.....



NOV 3 2007  STREET RACIN 020.jpg

OCT 5 -2008 041.jpg




__________________

 



A Poncho Legend!

Status: Offline
Posts: 20051
Date:


This is my favourite look of all the ones you posted Mark.

3956536416_2fb5c088db.jpg


 


__________________

Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




Uber Guru

Status: Offline
Posts: 3463
Date:

this is the style i like also

4527314866_86fa19c573.jpg

the '68-'69 L72s and all wagon tailpipes ended right behind the tire.

__________________

 








A Poncho Legend!

Status: Offline
Posts: 35601
Date:

69 belair wrote:

this is the style i like also

4527314866_86fa19c573.jpg

the '68-'69 L72s and all wagon tailpipes ended right behind the tire.



July 2010 at Kit-Wat 001.jpg

July 2010 at Kit-Wat 002.jpg

 



__________________

 

Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
.
Support Canadian Poncho!
Select Amount:
<
.
.
.