[Roadsters] R16 Header flange?

[Daryl Smith]

Thanks Matt,



> The flange for my U20 header was custom cut with a plasma cutter out of 
> 1/2"
> steel, and then the tubes re-welded to that.

I was thinking I may have to do that. I know a place up here that does water 
cutting that may be able to cut it for me.
May not be much more to cut a few of them.......Will look them up in the 
next couple weeks.

>They added some very small cuts (like
> with a band saw) from the bolt (stud) holes to the outside of the flange 
> as
> expansion joints, since it's bolted to an aluminum head.

I've seen that on several of the aftermarket headers and wondered what it 
was for......

> It shouldn't cost too much. Take your header to a machine shop. They'll 
> make
> you one right then, most likely. They could probably even cut the old 
> flange
> off and re-attach the pipes to it. A muffler shop may or may not be able 
> to
> make the flange, but they could certainly attach it to your header.

I am finally getting around to making my custom headers. So not a repair 
job.
Couple of design features in the currently available header that I don't 
like which could/should be easily resolved.
The biggest one being the collector. (merge collector would not be expensive 
to add at the manufacturing stage.....)

Working on a 4-2-1 design, possibly with the ability to bolt or strap to the 
original point by the motor mount to help
prevent cracking etc.

Thanks for the note!
Daryl

> I wasn't able to find just the flange from the vendors. Personally, I'd 
> buy
> a new one and eBay your current one to recover the shipping costs of the 
> new
> one.
> Dean's site,
> http://www.datsunparts.com/exhaust) has new headers (1/2 inch flange) from
> $120 - $245, depending on just what you want. The more expensive ones are
> ceramic coated.
> Rallye's 
> (http://www.datsunroadster.com/SUB_SECTION_DIRECTORIES/exhaust.htm)
> appear to range from $164 - $244.
> Don's (http://www.risingsunracing.com./parts_new_exhaust.htm) are $169.95.
>
> My two cents!
> Matt Smith - SEROC
>
> -----Original Message-----
> From: datsun-roadsters-bounces+matthews517=earthlink.net at autox.team.net
> [mailto:datsun-roadsters-bounces+matthews517=earthlink.net at autox.team.net]
> On Behalf Of Daryl Smith
> Sent: Monday, October 15, 2007 2:12 AM
> To: Datsun Roadster List
> Subject: [Roadsters] R16 Header flange?
>
> Do any of the vendors have a header flange for the R16 engine ?
>
> Would save me some time if I could get a the thick flange which is on the
> newer headers.....
>
> Thanks
> Daryl