Kierran.M.110 Posted November 11, 2017 Share Posted November 11, 2017 for a while now I've been wanting to start my custom exhaust build for my 300tdi 110, so a couple of weeks ago i finally made a start to the entire system, machined a flange to suit the turbo and had the first straight welded on. This weekend i want to get my old pipes off and start fitting the first few bits up so i can finish the front pipe. what i cant decide on is what type flange to use to join the sections of pipes together, the options are: - 3 bolt flange - 2 bolt flange - slip joint with connecting tags - v band rings reason for these 4 styles is these are the 4 options that i can easily make up, just wanted to get other peoples opinions on which one would be the best option. cheers, Kierran. Quote Link to comment Share on other sites More sharing options...
dangerous doug Posted November 11, 2017 Share Posted November 11, 2017 V bands. I have them on mine and love them. Quote Link to comment Share on other sites More sharing options...
Daan Posted November 11, 2017 Share Posted November 11, 2017 V bands, definitely. What diameter pipe are you using? Daan Quote Link to comment Share on other sites More sharing options...
Kierran.M.110 Posted November 11, 2017 Author Share Posted November 11, 2017 I've decided on 2.5" and possibly moving to 3" for the rear section as I have made up a nice fancy 3" tailpipe and Yeh I've been thinking v bands but wanted to hear people's thoughts on bolted flanges first before making two sets up Quote Link to comment Share on other sites More sharing options...
Troll Hunter Posted November 13, 2017 Share Posted November 13, 2017 Never being shy to ask, what is a V-band ring, please? Mike Quote Link to comment Share on other sites More sharing options...
Daan Posted November 13, 2017 Share Posted November 13, 2017 have a look at my last instalment of my hybrid. Daan Quote Link to comment Share on other sites More sharing options...
Kierran.M.110 Posted November 13, 2017 Author Share Posted November 13, 2017 A v band is a machined ring thats welded on the end of each pipe the two mating surface are flat with a locating ring on one and a recess on the other. On the outer surface is either a 20 or 25 degree slope I can't remember off the top of my head and there is a clamp that tightens up around the outside and pushes the two rings together have a look on the bay of e for exhaust v bands that might clear it up a bit Quote Link to comment Share on other sites More sharing options...
Kierran.M.110 Posted November 13, 2017 Author Share Posted November 13, 2017 I've just had a look at yours daan you've done the same as what I was thinking at going through the wheel arch instead of over the axle Quote Link to comment Share on other sites More sharing options...
Maverik Posted November 14, 2017 Share Posted November 14, 2017 Hmm V bands look nice, but they don't have much tolerance to any slight misalignment, I'd avoid slip on at all cost, ergh, horrible way to do things. Quote Link to comment Share on other sites More sharing options...
dangerous doug Posted November 14, 2017 Share Posted November 14, 2017 Diddnt have any issues with misalignment Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted November 14, 2017 Share Posted November 14, 2017 If you built it in-situ, there'd be no reason to adjust it to fit... Quote Link to comment Share on other sites More sharing options...
Daan Posted November 14, 2017 Share Posted November 14, 2017 I still have 1 slip joint in the system. This was mainly because of space restrictions (together with a stainless screw clamp you can get to about 66 mm diameter). The good thing about having at least 1 slip joint in the system is that there is still a bit of adjust-ability in the length of the system. This can be important as the welding may warp the tube slightly, and the exhaust will expand when hot, which could make the fit not as intended. Daan Quote Link to comment Share on other sites More sharing options...
Maverik Posted November 15, 2017 Share Posted November 15, 2017 After playing with a few exhausts that have a flexi joint in them when I get around to building my own SS exhaust I'll probably be looking at putting one in, I know they have a lifespan but I think the benefits outweigh the negatives. Quote Link to comment Share on other sites More sharing options...
Kierran.M.110 Posted November 15, 2017 Author Share Posted November 15, 2017 I am including a 6" flexi pipe into the system on the down pipe just after the first bend this should help with all the vibration. I am tempted to include a slip joint now you've mentioned it Daan more towards the rear of the system. also do you have a picture of where the exhaust passes between the body and chassis. hoping i will get the down pipe welded to a stage that it will be complete as far as the transfer box this week so i will upload a picture of it then. Quote Link to comment Share on other sites More sharing options...
Daan Posted November 18, 2017 Share Posted November 18, 2017 The exhaust passes the chassis rail under the seatbase. I will try get a piccy later. Daan Quote Link to comment Share on other sites More sharing options...
Troll Hunter Posted November 25, 2017 Share Posted November 25, 2017 Many thanks for the explanation, Kierran.M.110. They are what I thought they were. Mike 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.
Note: Your post will require moderator approval before it will be visible.