sidepipe question
Thread Starter
Le Mans Master
Joined: Mar 2005
Posts: 7,631
Likes: 11
From: Rocklin California
sidepipe question
My sidepipes outside diameter measures 2 3/4" so do I have 2 1/2" sidepipes? If so, if you figure the chambered area, would they be down to 2" ? Is there some kind of inner chamber and any way to determine that size (diameter)? Also, any way to tell if they are Allen's, Sweet Thunder, or ??? Yes, I know it's a dumb question but after seeing MasterDave cut his open, I am now very curious. And no, I don't want to cut mine open 
Thanks guys 
Thanks guys
Drifting
Joined: Aug 2000
Posts: 1,689
Likes: 1
From: Peoria AZ
Do you have 2" exhaust manifolds or 2 1/2" exhaust manifolds? Thats how you tell....I believe (but I am sure I will corrected if I am wrong) that the pipes themselves are the same size its just at the exhaust manifold that is different.
Thread Starter
Le Mans Master
Joined: Mar 2005
Posts: 7,631
Likes: 11
From: Rocklin California
Safety Car
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I think the Sweet Thunder 2 1/2 ID pipes have an outside diameter of 3 inches
yeap, I am right
Chambered tubes are correct diameter (2.75” not 3”) & have 2 different width of pinches like originals and they are placed correctly.
* The tips are the correct diameter tubing (2.75” not 3”) which are mandrel bent to the correct radius and then cut at correct angles.
The outside diameters of our sidepipes with 2 1/2 inch inner baffle tubes are 3 inch, all others are 2 3/4 inch as came on stock sidepipes.
--- from their website ---
yeap, I am right
Chambered tubes are correct diameter (2.75” not 3”) & have 2 different width of pinches like originals and they are placed correctly.
* The tips are the correct diameter tubing (2.75” not 3”) which are mandrel bent to the correct radius and then cut at correct angles.
The outside diameters of our sidepipes with 2 1/2 inch inner baffle tubes are 3 inch, all others are 2 3/4 inch as came on stock sidepipes.
--- from their website ---
Le Mans Master
Joined: Apr 2005
Posts: 6,360
Likes: 429
From: Seattle Area WA
My Allen's 2 1/2" pipes have an OD of 3", I think you may have either 2" or 2 1/4" ID pipes.
Just because the exhaust manifolds are one size doesn't determine the ID of the chamber, ie the originals were 1.75" ID with either 2" or 2 1/2" exhaust manifolds.
Just because the exhaust manifolds are one size doesn't determine the ID of the chamber, ie the originals were 1.75" ID with either 2" or 2 1/2" exhaust manifolds.
Drifting
Joined: Aug 2000
Posts: 1,689
Likes: 1
From: Peoria AZ
Thread Starter
Le Mans Master
Joined: Mar 2005
Posts: 7,631
Likes: 11
From: Rocklin California
2 1/2" maniflod also, sorry
The chambered area is 9" circumfrance divide by 3.14 = 2.87" or 2 3/4" diameter. The manifold is 2 1/2" part # 3797902 right side (fulie manifold).
The chambered area is 9" circumfrance divide by 3.14 = 2.87" or 2 3/4" diameter. The manifold is 2 1/2" part # 3797902 right side (fulie manifold).
Last edited by Kensmith; Dec 21, 2007 at 07:53 PM.
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Thread Starter
Le Mans Master
Joined: Mar 2005
Posts: 7,631
Likes: 11
From: Rocklin California
