Mandrel Bend vs Press Bend?
#1
Mandrel Bend vs Press Bend?
so i'm probably getting a new exhaust and i'm going to be using the buschur bullet muffler so i need a midpipe of some sort.
i know press benders crimp the exhaust at the bend but how much difference does it really make? how small of a diameter does the piping get crimped down to (if it's 3'' piping)? how much would it hurt the car performance-wise?
thanks in advance
i know press benders crimp the exhaust at the bend but how much difference does it really make? how small of a diameter does the piping get crimped down to (if it's 3'' piping)? how much would it hurt the car performance-wise?
thanks in advance
#2
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Air flows like water (it swirls around the outside diameter) like when you drain the bath tub it rotates around the perimeter of the drain. When you use anything but mandrel bent tubing it will hurt the flow and build pressure. Try to use weld els, www.burnsstainless.com
#5
question about the burns piping...how will i exactly know how long of piping will i need and what degree bends? i don't want to buy piping to find out that it's not long enough or not angled enough, etc...
has anybody made an exhaust out of burns and remember exactly what they bought for it?
also, burns uses OD. so would a 3 1/4'' OD equate to 3" ID?
thanks
has anybody made an exhaust out of burns and remember exactly what they bought for it?
also, burns uses OD. so would a 3 1/4'' OD equate to 3" ID?
thanks
#7
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most exhaust are already based on OD. So get about a .063 to an .089 wall thickness.
As for what to get... I do not know... I would think about 10 to 15ft of straight and 2-45* bends should about do it....
I personally use these guys:
http://www.mandrel-bends.com/catalog...r-kit-916.html
As for what to get... I do not know... I would think about 10 to 15ft of straight and 2-45* bends should about do it....
I personally use these guys:
http://www.mandrel-bends.com/catalog...r-kit-916.html
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#8
most exhaust are already based on OD. So get about a .063 to an .089 wall thickness.
As for what to get... I do not know... I would think about 10 to 15ft of straight and 2-45* bends should about do it....
I personally use these guys:
http://www.mandrel-bends.com/catalog...r-kit-916.html
As for what to get... I do not know... I would think about 10 to 15ft of straight and 2-45* bends should about do it....
I personally use these guys:
http://www.mandrel-bends.com/catalog...r-kit-916.html
not sure if i clarified it but i already have a dp and tp...i just need the midpipe to mount to a buschur bullet muffler
think 5ft will be enough in that case?
thanks for the advice
#12
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That kit I posted originally would be more than enough for what you are talking about making and the price is pretty good too....
#13
thanks again for the help...i'm not too keen on buying way more than i need but i used the same website you gave me and found these (same website but they throw their stuff up on ebay too)
http://cgi.ebay.com/ebaymotors/3-00-...d=p3911.c0.m14
http://cgi.ebay.com/ebaymotors/3-00-...Q5fAccessories
so would 2 45 degree bends and 5ft of straight do the job? take into consideration it's mated to a bullet muffler too
thanks for all the help guys
http://cgi.ebay.com/ebaymotors/3-00-...d=p3911.c0.m14
http://cgi.ebay.com/ebaymotors/3-00-...Q5fAccessories
so would 2 45 degree bends and 5ft of straight do the job? take into consideration it's mated to a bullet muffler too
thanks for all the help guys
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thanks again for the help...i'm not too keen on buying way more than i need but i used the same website you gave me and found these (same website but they throw their stuff up on ebay too)
http://cgi.ebay.com/ebaymotors/3-00-...d=p3911.c0.m14
http://cgi.ebay.com/ebaymotors/3-00-...Q5fAccessories
so would 2 45 degree bends and 5ft of straight do the job? take into consideration it's mated to a bullet muffler too
thanks for all the help guys
http://cgi.ebay.com/ebaymotors/3-00-...d=p3911.c0.m14
http://cgi.ebay.com/ebaymotors/3-00-...Q5fAccessories
so would 2 45 degree bends and 5ft of straight do the job? take into consideration it's mated to a bullet muffler too
thanks for all the help guys
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