3 inch x pipe
Moderator
Joined: Jul 2007
Posts: 18,165
From: Edmond, OK
I had a X pipe installed on my 71 98. A local exhaust shop did it with aftermarket parts. I took the car to him after cutting out the old single exhaust and installing headers. He installed 2 1/2 duals all the way back with a X pipe, 45" Thrush glasspacks and aftermarket tips. It's great, the B/C bodies are so long that the exhaust note is more deep than loud.
Thread Starter
Registered User
Joined: Oct 2006
Posts: 158
Yes I KNOW you can fab up an x pipe. My post was-does anyone MAKE an x pipe kit for these cars? Answer is no. Anyone with a pipe bender listening? Wanna make some money? I'd buy 20 sets. Just don't get stupid with the price.
Moderator
Joined: Jul 2007
Posts: 18,165
From: Edmond, OK
Unfortunately, there is little aftermarket support for the 71-76 Oldsmobile B/C bodies. We're lucky that there are at least 2 choices of headers.
I run Hedmann headers and they're great.
https://www.summitracing.com/parts/h...model/delta-88
Doug's headers are also available.
http://www.pertronix.com/prod/ex/dou...ngerCarHeaders
I run Hedmann headers and they're great.
https://www.summitracing.com/parts/h...model/delta-88
Doug's headers are also available.
http://www.pertronix.com/prod/ex/dou...ngerCarHeaders
Connoisseur d'Junque
Joined: Sep 2010
Posts: 21,183
From: The Hudson Valley
Yeah, you'll but 20 sets, and nobody else will buy one.
Not worth the investment for any aftermarket company. These cars are orphans with little interest, and are mostly stripped of their engines and scrapped, if they are not scrapped in the first place.
Sorry, you picked an unpopular car, and unpopular cars are not popular.
- Eric
Not worth the investment for any aftermarket company. These cars are orphans with little interest, and are mostly stripped of their engines and scrapped, if they are not scrapped in the first place.
Sorry, you picked an unpopular car, and unpopular cars are not popular.
- Eric
Registered User
Joined: Aug 2005
Posts: 1,972
From: Braceville, Ohio
I had a set of unknown brand 68-72 A-body tube headers laying around. They fit but I did heat/bend the drivers side for a closer fit. I'm running 2.25" dual exhaust with a torque tube. I have 2.5 inch pipes on the Turquoise 98. Jmo but 3 inch pipes might be a little over kill for a street/strip car.
Connoisseur d'Junque
Joined: Sep 2010
Posts: 21,183
From: The Hudson Valley
I skipped right over that part.
Does this engine make 600 HP?
Then why do you want 3 inch pipes?
Here's a table showing appropriate pipe sizes based on displacement and output (from an earlier post I made):
- Eric
Does this engine make 600 HP?
Then why do you want 3 inch pipes?
Here's a table showing appropriate pipe sizes based on displacement and output (from an earlier post I made):
HTML Code:
Pipe Diam Pipe Area Total CFM Max HP Max HP
(sq.in.) (estimated) Per Pipe Dual Pipes
______________________________________________________________
1½" 1.48 171 78 155
1⅝" 1.77 203 92 185
1¾" 2.07 239 108 217
2" 2.76 318 144 289
2¼" 3.55 408 185 371
2½" 4.43 509 232 463
2¾" 5.41 622 283 566
3" 6.49 747 339 679
3¼" 7.67 882 401 802
3½" 8.95 1029 468 935
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