i cant seem to find the 3" mandrel donuts that were posted up here a few times, i did searches with no luck, any one know where to get em? thanks!

 

kteller8?

 

Road Race

 

theres some dsm site with them, i cant find it either

 

hm...

 

http://www.roadraceengineering.com

 

http://www.roadraceengineering...s.htm

thats it, good call.

 

You can get the donuts from: http://www.chassisshop.com

 

thank you sirs

 

Just thought I'd bump up for good info. I'm starting to lay out my downpipe, and I probably will end up needing one for a tight turn.

 

Ok.. maybe I'm just an idiot.. or maybe its lack of sleep... but how exactly do they make a mandrel donut like that? It has no weld marks at any point it appears, so its not like they bend it around the weld it together? *shrug*

 

can this clear AC with a 3''? it looks like a tight enough bend.


Rob

 

it wont clear AC unless you have a custom Manifold.. At least w/ an INline Pro mani... I had to modify my 3" DP to clear the AC..

 

This bend has radius the same size as the diameter piping [for 3" pipe, it has a 3" radius]. I still don't think you'll clear the AC with most manifolds...at it's least, it's going to be 4.5" away from the flange.

I'm going to use one for my sidewinder setup. Should have PLENTY of room for AC

 

Oh yeah, I think they make it by bending it out of a sheet and welding the inner seam.

 

maybe IM an idiot but, what the hell do u do with that thing?

 

allows for a tight bend, like when making a downpipe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OnPointDX &raquo;</TD></TR><TR><TD CLASS="quote">maybe IM an idiot but, what the hell do u do with that thing?</TD></TR></TABLE>

Dude what else do u do with donuts?! U EAT THEM!!!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VNTEC &raquo;</TD></TR><TR><TD CLASS="quote">

Dude what else do u do with donuts?! U EAT THEM!!!!!! </TD></TR></TABLE>

lol, preferably with a cup of coffee

 

the donuts have an inner seam that needs to welded after cutting. its basically two donut halves welded together then ground down/polished. tight radii bends are nice, expensive, but nice. .with a FR T4 AC mani, you can run a full 3.0 in downpipe with a v-band clamp

 

The inner seam is OPEN on that donut.

This is what you make out of it:

 

RRE is currently out of steel 3" donuts! I guess I'm going to try Chassis shop.