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Widened std. gtv6 wheels..~nice one Kev..-Barry

Posted: Wed Dec 20, 2006 7:13 am
by Barry
Paid ol` Kev a visit today and he showed me his new wheels..Bloody nice..
Widened std. gtv6 wheels.. :wink: 8) 8)

Posted: Wed Dec 20, 2006 9:03 am
by Sporttunergtv6
how did he do that?!

Posted: Wed Dec 20, 2006 9:39 am
by Barry
:D Its an old racing trick ..
You need 8 rims or at least 4 others that can be cut up to make the outer lips.
Machine the originals off and machine up the new outers from the donors..

Very important to have receiver type grooves for the 2 parts and then weld..

After welding,clean up and final machine-have them x-rayed and if they pass,paint and polish!

Kev used 4x 164 15 " wheels as donors.. :wink:

Posted: Wed Dec 20, 2006 12:12 pm
by gtv11636
Can you make them 16 or 17 in diameter as well ? :D

anyway, very nice! :wink:

Posted: Wed Dec 20, 2006 12:30 pm
by Micke
Can you make them 16 or 17 in diameter as well
Of course. You actually don't need 8 donor rims. Just add some matherial with the welding stick. Use alu for alu and steel 4 steel tho 8)

The best welders can actually do even without any donor rims but just start drom the bolt holes. You just need to chose which bolt pattern to start from :idea: :shock: :twisted:

Posted: Wed Dec 20, 2006 12:41 pm
by Alfettish
Well you can tell Kev that I wanna buy them.

Posted: Wed Dec 20, 2006 12:54 pm
by Maurizio
Is done here a lot on steel wheels, but nobody is brave enough to do alloys.

Have a set of 15" 156 steel laying around for my TS is going to become 8J et19 :wink:

Posted: Wed Dec 20, 2006 1:43 pm
by Micke
Now when you talk about it I remember I actually have something weird myself.
The previous owner of My Alfetta GT made a spare wheel from an OE Alfetta wheel with a minispare outer part from a Saab or something.

Posted: Wed Dec 20, 2006 3:28 pm
by Greg Gordon
This just might be the coolest thing on this site yet.

Posted: Thu Dec 21, 2006 7:20 am
by Mericet
So, how wide are these?

Posted: Thu Dec 21, 2006 7:45 am
by Jim K
It ain't all roses here guys! This mod is as old as the wheels themselves but it doesn't always work. Are you sure you can trust the clowns doing the welding? Have you any idea of the wheel stresses involved during cornering with sticky tires? You mentioned x-ray testing....yeah, maybe 1 out of 1000 people doing this resorts to it! All the others are "sure" of a good solid job...I admit its tempting, as I can't find Compomotive MO larger than the 8" max they make, but no thanks.
Jim K.

Posted: Thu Dec 21, 2006 9:43 am
by Barry
Ha! Thats where my aviation background comes in hey Jim?? :wink:

Posted: Thu Dec 21, 2006 10:45 am
by Micke
If you think about it Jim, you'll also get an idea of the cornering stress.
Now divide the stress with the length of the weld. And compare this to tiny parts in the suspension. As long as it's not Mg I'd trust my neighbor to do it.
Things need to be fairly straight thouhg.

On the other hand I don't really see the need for this. I'm not a fan of OE nor Compo MO wheels so I can get the right size directly.

Posted: Thu Dec 21, 2006 1:29 pm
by Jim K
The reason I talk about these wheels is that they resemble very closely the factory 75 GpA wheels, which were (!) 8.75"wide x16". The IMSA had...11" wide wheels but we're not building one. I would like to keep the looks reasonably close to the original where practical. This 'quasi'GpA project will really start moving after the damn book is out of the way.
Jim K.

Posted: Fri Dec 22, 2006 1:17 am
by gtv11636
Got me realy curious.
I always thought about the original campagnolo in 16\17 inches and wider then stock as well.
The down side for my opinion, is the add of weight :roll:
Barry! wrote you PM. :wink: