has any one ever tried running the tail pipes under the axle like this? thinkin about doing it with my mav when im ready for the exhaust. View attachment 52080 http://forums.vintage-mustang.com/m...s-your-exhaust-coil-over-rear-suspension.html
ive worked on plenty of cars with that done. the problem is when the car is lifted up by the body the rear end comes down and hits and presses down on the exhaust system. this can brake exhaust hangers. if the exhaust is hung low enough to clear then it will be really close the ground.
hmmmm well one thing i know i can do is make it so that i can unbolt the tailpipes by adding flanges to the ends. wth the 17's i have the back end should be up off the ground enuff so the wont hit, plus im going to look into 4leaf springs b4 i put it back on the road again that should help too. here is a another pic from a stang View attachment 52081
You can put limiting cables around the rear so it doesn't drop so far....The original Shelby GT-350's had these but they where more for preventing the Koni shocks from breaking when the cars got light after cresting hills at speed
http://www.summitracing.com/parts/EXP-5172/ saw these at summit, they say the are for offroad racing, should be durable enough.
Bryant is right about the exhaust hitting and it is a pain going under the axle because that is what I did on my 66 Stang when I went 4 link. I believe that in both pictures the reason for them putting the exhaust under the axle is that they also have 4 links. At least the first Yellow one does and with a 4 link in an early Mustang there is just no room over the axle for a decent sized exhaust. As for using flanges, they always leak and this is a real pain in the neck. If you must put flanges on them use the new kind, not the old 2/3 bolt gasketed kind, like these, http://www.spdexhaust.com/VBK_B.html these are not cheap, but they will not leak and a lot easier to take off and on. IMHO
Forgot to talk about what Streamliner said regarding the limiters for the rear axle, and he is right. On my race Maverick I have limiters in the front, which was done in 1979 on a lot of the B/SM cars. Because I had a real problem with my exhaust under the axle after talking with some Shelby guys I did the same to my 66. I guess you can use those straps, but again there is limited room and the straps get so dirty after awhile look like heck. Use a Teflon coated cable which is also easier to mount than those big flat buckles. IMHO
As I said, these are not cheap, but SPD is IMHO one of the best custom header manufactures in the country as they make them for quite a few of the NASCAR people, Bonneville, Drag Racing, and Road Racing. You should contact John at SPD for an exact price if you are still interested, or send him an email and tell him that John Speer (the guy with the Maverick headers) told you to call/email him.................or you can even try and contact Chris, the owner and ask him the same thing, and if doesn't remember me from modifing my Dawson Maverick headers just mention that he just built some "merge collectors" for me for a "Flathead Cad" Bonneville motor, I'm sure he will remember them, and ask him for a good price............who knows maybe he will give you a discount. I believe that "racer net" per side is around $100, or $200 for both sides if you use 2.5" exhaust, cheaper if you go smaller. Also remember that these are 304 SS and will not rust or weld themselves together......................like I said, not cheap, but very effective.
I had that done on my Mustang, I loved it! It came out of the car as one piece (H pipe in the front, connected in the rear) never bottomed out. Really helpful with a giant C6, and a 460.
