48hoopty Posted November 30, 2017 Report Share Posted November 30, 2017 For the guys with dual exhaust. I'm in the process of fabbing up a set of headers. And I've gotten to the part of pipe size and mufflers. As of now I'm running vintage 1948 pipe and muffler. It sounds like a hi performance sewing machine. Looking for input on exhaust pipe size so I can build past the primary pipes. 2 or 2 1/2" and good sounding mufflers. As of now I'm set for 1 1/2" primary hot rolled .125" wall for primary tube into a v band collector. Since I'm fairly new to flat motors I'm open to suggestions. Good sound is what I'm looking for. Intake is a 2 carb Fenton. Cam is stock grind. Might have a Fenton head on lock if we can agree on price. Thanks. Quote Link to comment Share on other sites More sharing options...
Adam H P15 D30 Posted November 30, 2017 Report Share Posted November 30, 2017 (edited) I used 1.75 primary tubes and 3" collectors on the ones I built. They will go into a single 2.25 exhaust through a Mustang GT muffler exiting in front of the right rear tire. Haven't started the car yet so I can't tell you how it sounds yet. SBC Headers and muffler I had. Edited November 30, 2017 by Adam H P15 D30 Quote Link to comment Share on other sites More sharing options...
Adam H P15 D30 Posted November 30, 2017 Report Share Posted November 30, 2017 Oh and the exhaust sounded pretty good through the mustang muffler with the stock manifold. Just an FYI, the exhaust ports are 1.25 diameter. I built a log type intake with 2 Langdon Carter/Weber 32 carbs. Quote Link to comment Share on other sites More sharing options...
55 Fargo Posted November 30, 2017 Report Share Posted November 30, 2017 7 hours ago, Adam H P15 D30 said: I used 1.75 primary tubes and 3" collectors on the ones I built. They will go into a single 2.25 exhaust through a Mustang GT muffler exiting in front of the right rear tire. Haven't started the car yet so I can't tell you how it sounds yet. SBC Headers and muffler I had. Hey Adam so is this exhaust a tru split then running into 1 muffler? Is this good for more torque? Quote Link to comment Share on other sites More sharing options...
Adam H P15 D30 Posted November 30, 2017 Report Share Posted November 30, 2017 44 minutes ago, 55 Fargo Spitfire said: Hey Adam so is this exhaust a tru split then running into 1 muffler? Is this good for more torque? Yes, I installed the new exhaust and muffler when I still had the OE manifold. I just finished fabbing the new intake and exhaust so I haven't run it yet, I'll follow up in a few weeks when I get back on it. Maybe I'll do a thread with some of the build pictures? 1 Quote Link to comment Share on other sites More sharing options...
hkestes41 Posted November 30, 2017 Report Share Posted November 30, 2017 This was mine through the cast iron Fenton repop headers with 2 inch pipes back through no name 14 inch turbo mufflers. Had an H pipe in it about 2 inches past the end of the bell housing. https://youtu.be/AxfKQ4KMM9s Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.