Down under, an idiot and a 400F

[o1marc]

The EW kit is 110v, is it a problem? What do you mean? It's not a problem for me , is there an issue on your end? Toaster ovens work. Any oven that will maintain a 400*f temp will work, but keep in mind to need to be able to hang your parts in it so a toaster oven is very limited in space for doing much more than tiny objects. You need to get the part to 400*f and maintain that for 10 minutes, not the oven temp.

 

[Bozz]

I believe the EW gun has a switchable ballast for EU/OZ voltages.
(it appears to be similar to a neon sign ballast/transformer)


A standard domestic oven can handle most parts, but wheels push the limit and frames are obviously beyond it.


I know in OZ a homeowner cannot legally install the wiring themselves (one of the things that bothered me when I lived there) so that certainly makes is harder to go this route unless you are friends with a tradesman.

 

[o1marc]

If you have welding capabilities in your shop you should already have the necessary wiring. You just need to make a cord to plug into the outlet. Wheels can be done in a standard oven by making an insulated extension. Google "Prego oven build"

 

[neevo]

Final exhaust question... I originally hd my eye on some Yoshimuras, however they were coming in at $900 so that idea got canned in the end. The pic in my signature was created with those cans as the template:



It turns up there are some 2nd hand Yoshimuras that are in Sydney, they are the TRC model (dual setup for the GSXR1000):

I'm thinking these could work and the colur would match the forks. I am a little nervous they might be a bit overpowering though in their size and shape... thoughts?

If they are a little long, is it possible to cut them down and re-rivet them back together?

 

[o1marc]

That's an awful lot of muffler for a little 400. I would think they might hurt torque on it but be good for top end power. One of them is about equivalent to what was supplied from the factory on that little bike, even if it's a 466. I don't see any reason why you couldn't shorten the cans, that would help with the concerns I mentioned.

 

[o1marc]

You can get repack kits for those that include the waterproof rivits for around $35. I would shorten the inlet end so you could retain the Yoshi emblem.

 

[neevo]

I'm also making custom headers and mid pipes which should help too wouldn't you think?

 

[o1marc]

I'm also making custom headers and mid pipes which should help too wouldn't you think?

Don't know if it will make difference unless you are using different size piping. If the lengths and diameters are the same there probably won't be much difference. Honda's pipe is engineered to make about as much power through the operating range as commercially possible. Your custom pipe may make more power in certain areas of RPM but may suffer in others. Exhaust tuning is rocket science.

 

[hillsy]

There's a bunch of cheap cans on eBay for CBR250's and Ninjas like this one:


http://www.ebay.com.au/itm/Honda-CBR-250-RR-MC22-Musarri-Aluminum-Shorty-Exhaust-ALU-/230769160857?pt=AU_Motorcycle_Parts_Accessories&hash=item35bae9f299&_uhb=1


They come in pretty much any colour you want too. And they will breathe OK for your bike.


I've re-skinned a Yoshi tri-oval with the skin kit and whilst it's not the hardest job in the world it is finicky and you will end up scratching it somewhere / somehow.

 

[K4]

If you're still looking for mufflers. Expand your search to include off road vehicles (Quads, Rhinos, etc...)
Here's an example for a Yamaha Rhino. Good luck

 

[neevo]

Marc the plan is to optimize the pipe diameter to the upgraded engine. I've got a huge spreadsheet here with all the header length and diameter as well as muffler lengths to get the power curve as low as possible for mid range punch.

The mid pipes and headers will be adjusted diameters to match the calculations.

 

[neevo]

If you're still looking for mufflers. Expand your search to include off road vehicles (Quads, Rhinos, etc...)
Here's an example for a Yamaha Rhino. Good luck

Thanks for the tip. Already yielding some extra results

 

[neevo]

We have exhausts people!

 

[stroker crazy]

Pictures, or it never happened!

Crazy

 

[neevo]

Of course!

 

[neevo]

My eBay watch list has been an encyclopaedia of motorbike mufflers. When I was originally planning the exhausts I had my hearth set on a set of Yoshimura R-77's and even went to the trouble of working out how long they were to mock them up on the bike:

Well after some extensive searching it turns out the $500 exhausts I had been watching were only 1 side (and I really wanted to do a dual exhaust setup) and the dual setup was a crazy $900. Now this build has been getting a little out of control on the budget side and reality stepped in and I decided to bring my expectations down a little bit.

Searching around a bit I found some options from Leo Vince and also Two Brothers, not as nice as the Yoshimura's but at $480 odd delivered they were a little more in the budget. I was about to pull the trigger on the Leo Vince's this afternoon when I got some eBay search advice which yielded some results that I hadn't seen before... 1 of which was a set of GSXR TCR Yoshimura's only 30 minutes down the road from me for a cracking $450 (brand new in box):

I drove over there this afternoon to have a look at them and to my disappointment they were waaaaay to big at 18 inches long and a huge muffler diameter too. Oh well!

I got chatting to the chap and his missus (who were delightful people) about bikes and what I was doing and he brought a selection of other mufflers he also had. In a mix of Japanese mufflers and European brand new stock I came across these:

Well who would have thought it... he had a brand new, never opened box of R-77's in Stainless and Carbon (exactly what I had ogled over in the very beginning):

There was no way I could get them for my budget but I thought I would offer them all I had $450. Well obviously the motorbike gods were looking down on me because they said YES!!!!!

Its pretty dark here so unfortunately I couldn't do a test fit on the bike, but I had to get a photo of them from the rear so I could imagine what they would look like:

I have slight reservations about how big they are, however I couldn't pass on them for that price. Worst case I will sell them and try and make my money back. There is also the issue around how big the pipes are, however I will see what trickery I can do to get the ideal header and midpipe dimensions to ensure appropriate back pressure (maybe some trick double walled pipes).

All in all a very good day!

 

[stroker crazy]

Great find!

It was meant to be.

Crazy

 

[Maritime]

Whoot nice score.

 

[neevo]

Yeah I'm pretty chuffed with the purchase although I still have some reservations about how big the cans might look on the bike (they aren't exactly small) and I still need to work out how I am going to restrict the midpipes as they are 2.25 inches, from my calculations I work out the mid pipes to be required at 1.5 inches which is a big difference obviously. Ideally I would like to keep the outside diameter reasonably stock (maybe 2 inches) so that the mufflers look normal (with beefy pipes attaching to them), which means I will need to get creative about how I keep the inside smaller.

Currently thinking I will look into how I can build twin walled SS pipes but not sure how they are done. Will have a chat to my pipe bender and see if they are able to bend 2 pipes at once (1 inside the other), as once the complex bends are done on one I have no idea how you would get a second in there without cutting the outside one up!

I also need to have a chat to my bud Darren (at DnA Custom Cycles) about having some muffler brackets made up so that they are held firmly and I suspect with an offset to clear the rear of the bike. Still need to decide where I want them exiting which should be pretty exciting... working from home today so I'm thinking there may be some play time later on this afternoon

 

[hillsy]

I know you've got 2 mufflers, but you should only really run one IMO.