TOPIC:

EricHa wrote:

Mark, here is what I came up with. All measurements taken with a tape held in the center of each pipe radius.

Outer Primaries: 30" 1.5" o.d.
Inner Primaries: 31" 1.5" o.d.
Collector Length: 4.75"
Megaphone Length: 27.75" 3" o.d.

I also came up with rough bend numbers on the megaphone. 27 degree bend at 11.875" from one end, and another 27 degree bend at 4.5" from the other end. Here's a pic, and let me know if you need more specific info. I also have a V/H pipe if you'd like some measurements from it.

I also read about using a ball mandrel for bending performance exhausts. Would be a must for this type of thing I imagine. Here's a link to a good article........

www.hinesbending.com/BASICTUBEBENDINGGUIDE.pdf

Thats great Eric. Thanks. here are my Street KerKer #s. this is for the 1 that has access to the oil filter.
I used a string to follow the bends and then measured the string.

Primary ID = 1 3/8" od = 1.5"
prim #1 = 34"
#2,3 = 35"
#4 = 33"
collector ID= 2 5/16" OD = 2.5"
length of taper is 5", to end of collector is another 9.5"

slip on starts @ 2.5" od ,and widens to 3" od at the bend . 7" long to bend.
3" to 4" OD. 12" long from bend to to end.
total length of slipon megaphone is 19".
At a glance it looks like the Yosh would favour top end compared to the street Kerker. yosh has shorter primaries and larger collector pipe. I will read that tube bending pg and get back to u. Thanks .

OK now u just have to teach me how to put lines and # on a pic. what program do u use? Thats great.
And John , u have to teach me how to put a collage (spell)together.

old pic and plenty of mine around but....here is a supertrap for comparision

Z1900, that is 1 crazy looking pipe. I think Larry C said he liked those pipes. i've never seen 1 before.
Can u get some # for us?
U should be able to change the oil with that baby. lol:P

keith1 wrote:

if ya want a pic of old kerker, i can dig it out....weekend is free.....hell, if it isnt too bad,
i might just look into throwing it on...they do sound good......no baffle for mine though....

Is that the Kerker that goes straight over the oil filter?
if it is,thats the 1 i want # for the most.
That and a Bassani.

Pipes

trianglelaguna wrote:

old pic and plenty of mine around but....here is a supertrap for comparision

i had a supertrapp with a stack o' discs about 7 inches thick on my gs1150 e......now that thing sounded bad...!!!

mark1122 wrote:

keith1 wrote:

if ya want a pic of old kerker, i can dig it out....weekend is free.....hell, if it isnt too bad,
i might just look into throwing it on...they do sound good......no baffle for mine though....

Is that the Kerker that goes straight over the oil filter?
if it is,thats the 1 i want # for the most.
That and a Bassani.

mark,
seriously, if thats the one you want measurements on, i will dig it out tommorow and post pics and measurements.......keith.....

U dont even have to measure it. just put it in the mail.

mark1122 wrote:

Thats great Eric. Thanks. here are my Street KerKer #s. this is for the 1 that has access to the oil filter.
I used a string to follow the bends and then measured the string.

Primary ID = 1 3/8" od = 1.5"
prim #1 = 34"
#2,3 = 35"
#4 = 33"
collector ID= 2 5/16" OD = 2.5"
length of taper is 5", to end of collector is another 9.5"

slip on starts @ 2.5" od ,and widens to 3" od at the bend . 7" long to bend.
3" to 4" OD. 12" long from bend to to end.
total length of slipon megaphone is 19".
At a glance it looks like the Yosh would favour top end compared to the street Kerker. yosh has shorter primaries and larger collector pipe. I will read that tube bending pg and get back to u. Thanks .

OK now u just have to teach me how to put lines and # on a pic. what program do u use? Thats great.
And John , u have to teach me how to put a collage (spell)together.

Does each primary have 2 pipes, inner and outer, on that Kerker? Dual layer like a lot of stock pipes. 1.375 inner and a 1.5 outer is pretty thick for a single pipe. 8 gauge I think.

This thread is great, I love collecting parts specs.

mark1122 wrote:

U dont even have to measure it. just put it in the mail.

here is pic of old pipe....i dont know if this is the one you were mentioning.....

another

last one