Author Topic: I'm looking for someone to bend me a custom head pipe (Read 10350 times)

333 · « **Reply #25 on:** January 01, 2016, 05:36:18 PM »

If you take your time, that won't happen.

754 · « **Reply #26 on:** January 01, 2016, 06:33:17 PM »

Smaller and wider with a bulge on each side..

333 · « **Reply #27 on:** January 01, 2016, 06:40:05 PM »

Much more accurate than "kinked".

grcamna2 · « **Reply #28 on:** January 01, 2016, 08:24:10 PM »

I hear you guys;nothing as pretty as an oem factory bend. I'll keep checking around.

DohcBikes · « **Reply #29 on:** January 02, 2016, 08:04:25 AM »

Quote from: grcamna2 on January 01, 2016, 08:24:10 PM

nothing as pretty as an oem factory bend.

This head pipe would be a very good start for you grcamna2.http://www.ebay.com/itm/83-85-Honda-ATC200X-DG-RCM-Black-Steel-Full-Exhaust-04-2108-/261728073764?hash=item3cf0357824:g:kocAAOSwk5FUrugl&vxp=mtr

The HF bender will not get even close to what you need regardless of how you do it.

grcamna2 · « **Reply #30 on:** January 02, 2016, 05:06:36 PM »

That's a great looking system DohcBikes only I'm going with a custom CB Low-pipe w/ the muffler on the bottom. Thanks

DohcBikes · « **Reply #31 on:** January 02, 2016, 05:34:30 PM »

Ok well in that case disregard everything I said. Good tips on using the bender here and it just might work with that style of exhaust. Good luck either way.

grcamna2 · « **Reply #32 on:** January 02, 2016, 06:39:47 PM »

I'm looking around here locally for an exhaust guy who has experience and a 1.5" die for his machine+ the pipe,I just need to keep looking,calling,driving,etc.

Don R · « **Reply #33 on:** January 02, 2016, 08:25:02 PM »

I've got a hossfeld bender and a few dies but I can't bend thin wall without it kinking. I can do moly in 1" through 1 5/8. .058 in small sizes and .065 wall as it gets bigger and when it's mild steel it's really thick before I can bend it.

754 · « **Reply #34 on:** January 02, 2016, 08:44:03 PM »

That pipe seller has 179,000 items on ebay ! ! !l

Don, i thought that Hossfeld and JD Squared type benders were similar.
And that tube stationary, withblock pulling tube AROUND the die, usually yields smooth bends... I saw ones looking pretty good come off hossfelds.
Are you lubing the tube and die ? Or is it a wall thickness problem..?

I got the hoops below bent on a mandrel bender.... 3/4 inch od.. The hoops are for rear frame sections to take flattrack seats..
Not sure if they used the mandrel, i can see a hint of bulge.. It was at a place I worked for a while, they made gobs of mirror brackets for Western Star trucks. But that part was flat and I had an accurate pattern so it was an easy job..

scottly · « **Reply #35 on:** January 02, 2016, 08:56:28 PM »

Quote from: Don R on January 02, 2016, 08:25:02 PM

I've got a hossfeld bender and a few dies but I can't bend thin wall without it kinking. I can do moly in 1" through 1 5/8. .058 in small sizes and .065 wall as it gets bigger and when it's mild steel it's really thick before I can bend it.

That's been my experience with most benders; thin wall tubing suitable for exhaust kinks. A mandrel type bender is required for thin wall.

grcamna2 · « **Reply #36 on:** January 02, 2016, 09:16:13 PM »

The steel exhaust pipe that AutoZone will sell/quoted me is 1 1/2" o.d. and 1 3/8" i.d. and they said that it's 1/16" thick tubing,is that thick enough tubing w/o having it kink or bulge too much when they bend it ?

Don R · « **Reply #37 on:** January 02, 2016, 09:38:17 PM »

A mandrel bender can do it. Mine doesn't have a mandrel, Parts store pipe will be aluminized it'll take paint not sure about plating.

grcamna2 · « **Reply #38 on:** January 02, 2016, 10:03:59 PM »

Quote from: Don R on January 02, 2016, 09:38:17 PM

A mandrel bender can do it. Mine doesn't have a mandrel, Parts store pipe will be aluminized it'll take paint not sure about plating.

They gave me a choice between aluminized or just plain steel pipe.

grcamna2 · « **Reply #39 on:** January 04, 2016, 08:04:20 AM »

Don,
I found a small shop in a town called Port Royal,PA.,about 180 miles from me that has a mandrel bender;do you think mandrel will make the 'cleanest' bends ?

strynboen · « **Reply #40 on:** January 04, 2016, 08:37:01 AM »

here is my bike..i made the tubing from cylender to muffler..not so clear on that Photo..its not possibel to make this hard turns on a vater pipe hydralik press..

grcamna2 · « **Reply #41 on:** January 04, 2016, 08:45:45 AM »

That's a long curl type bend on the red Honda there strynboen.Did you make the 'curl' w/ a few different pieces? or one-piece ?

strynboen · « **Reply #42 on:** January 04, 2016, 08:50:27 AM »

i made it aut of 3 chunks.
.made a nev flange in my lathe..and veld the mufler direkt on the rostfree stell tube..it veld nice together vith mild steel...but have one to tigveld the tubeparts..to get a nicer line in that

grcamna2 · « **Reply #43 on:** January 04, 2016, 09:00:18 AM »

Strynboen,
That little bike you have is a CD50? because it has a scrambler style high pipe..

strynboen · « **Reply #44 on:** January 04, 2016, 09:07:50 AM »

there is 2 variants of this 50 cc moped... cd vho is old looking..big fenders,,closed thain gauard. plastic pads on tank sides.in denmark kalled" morfaR"(granddad)..mostly a go to Work bike...for older peapel.
.i akt.. dont now vhy it have off road heigh exhost..but it had it from 1970 on to 1974..then it had a normal dovn pipe..so they vas sold both vays

..then there is the Young boy type ss50..vho is sporty small crome fenders..open chainguard ,,spedo up at handel..styled as Yamaha fs1...ve dont got that type in denmark( small sales contry)..
.cd vas also sold as a real mc as 65cc..and the big Brother cd 175..most sold in England

edit
try to thek a chinese cross bike/ATV..most exhosts system can be easy cut or veld to fit a Honda..i had modd a lot of china exh systems to fit small Honda/and atv

grcamna2 · « **Reply #45 on:** January 04, 2016, 10:59:02 AM »

I understand

754 · « **Reply #46 on:** January 04, 2016, 12:57:09 PM »

Woods metal , cerrobend, MCP 158 and Pewtalloy... Are all used to melt into thinwall tubing..prior to bending.. Ofc to find out what that cost.

All of these melt al lower than 200 F.. Some as low as 158 F.

4 lbs of cerrobend on ebay right now for 35.00

grcamna2 · « **Reply #47 on:** January 04, 2016, 02:09:13 PM »

Quote from: 754 on January 04, 2016, 12:57:09 PM

Woods metal , cerrobend, MCP 158 and Pewtalloy... Are all used to melt into thinwall tubing..prior to bending.. Ofc to find out what that cost.

All of these melt al lower than 200 F.. Some as low as 158 F.

4 lbs of cerrobend on ebay right now for 35.00

Frank,
What's that cerrobend stuff for ? mock-up?

754 · « **Reply #48 on:** January 04, 2016, 02:39:52 PM »

Melt it pour it into pipe in the to be bent area..prevents kinking..
Way easier than sand, and trying to plug ends. ...I think..

grcamna2 · « **Reply #49 on:** January 04, 2016, 03:48:56 PM »

ok,then you make your bends and heat it back up to remove it? makes sense & sounds like it'll save wasted pipe.
What's the usual thickness of good quality exhaust pipe? and just thought I'd ask about stainless steel..
The owner of the exh./tube shop in the little town of Port Royal,PA. (T. lane muffler)who has the mandrel type bender for 1.5" pipe spoke w/ me on the phone and I sent him some pics of the present pipe on my bike that i want to copy only bigger dia. and he asked me if I wanted to use SS and that sounds like a great option.
I'd like to get two header pipes bent(depending on the price..)for different set-ups:one SS for an oem longer muffler w/ it's excellent sealing flange and clamp and then one w/ standard steel a certain length for use w/ another style aftermarket muffler I'll decide on later.Would you tell me what the length of the pipe and muffler have to do with where the powerband comes in ? I was told a longer headpipe/muffler is good for high rpm powerband..

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Author Topic: I'm looking for someone to bend me a custom head pipe (Read 10350 times)