NSW Corvettes

Technical Tips => Brakes, Suspensions, Steering, Wheels & Tyres => Topic started by: Brutus on January 01, 2005, 12:36:13 PM

Title: Wheel widening
Post by: Brutus on January 01, 2005, 12:36:13 PM
Does anyone know of any wheel manufacturers or dealers who can or are allowed to widen one piece alloy rims?
I'm sure I have heard of it being done in the past, but not sure of the possibility or legality of the practice still being done.
Title: Wheel widening
Post by: Ausrs on January 01, 2005, 12:57:16 PM
i have heard that rebel wheels in wollongong will do it ,
have also heard that it is "for off raod use only "
morton and may is also in wollongong nowdays
hope thats of some use ;laugh
Title: Wheel widening
Post by: Brutus on January 01, 2005, 01:13:25 PM
Excellent, thanks. I'll look them up next week and see how I go. I'd like to take my 77's alloys out nice and wide so I can then flare the guards to match.
Title: Wheel widening
Post by: MJ355 on January 01, 2005, 03:34:10 PM
there is also another bloke down here in the gong (fairy meadow) harman wheels he fixed a set of simmons for me he does all that sort of stuff and i reckon his the best going around

Harman wheels
42287759
0417260766
Title: Wheel widening
Post by: Brutus on January 01, 2005, 04:12:23 PM
Thanks Matt. I give him a call too.
Title: Wheel widening
Post by: Thunder Kiss on January 03, 2005, 12:02:26 PM
A guy in another forum I'm a member of had his Ford alloy wheels widened from 18x8 to 18x9.
Here (http://www.fordforums.com/showthread.php?t=75811&highlight=wheel+widening) is the link.
Title: Wheel widening
Post by: Brutus on January 03, 2005, 12:20:31 PM
Excellent....thanks.
Here is an excerpt from the post concerned for anyone who's interested.

"In the meantime, just so you guys can get some facts.

The engineering firm is certified, therefore the mods are legal.

They slice the inner part of the rim off close to the wheel centre, then obtain a sacraficial 18" wheel that has the same taper and thickness etc, which they also slice on the inner, with 1" extra width, which is then double side welded to the factory rim. Then they machine the finish.

Many race cars are modified this way when they are playing with offsets and widths for handling.

The join is perfectly legal and every bit as strong and safe as the original wheel. I once had a corvette where I widened the 9.5" rims to 11" exactly the same way. They performed (track days included) perfectly.

The 4mm offset that is required is provided by a 4mm spacer plate, either welded to the rim or simply placed between the rim and axle hub.

the law requires a minimum of 6 x 360 degree full turns from the lug nuts for safety. The 4mm still allows over 8.

Looking at the finished article I probably did not need to roll my guards, however, with cornering forces flexing the tyre I think it is a good safety idea.

The inner clearance issues relate to the lower control arm bolts, which are cleared more than adequately with the 4mm offset. In fact, looking at the end result, the rims would probably clear enough without the spacers.

After completion we braced the car and jacked the rear wheels individualy to check clearances for full up and down limits in the suspension travel. No problems.

My car is also lowered 1" all round with King Springs. The combination of lowereing, 275's out back with 8mm overall added offset is 'FAT'. Definetly gives the car the look and GRIP that it should have had from factory. The machine polishing also looks great.

The costs are.

Widening of wheels $220 each.
Spacer plates $22 each.
Full machine polishing $110 each
There may be an additional $50-$60 per wheel if they have to buy 'brand new' sacraficial 18" wheels for the inner ring."


Bob
Title: Wheel widening
Post by: Ausrs on January 03, 2005, 05:05:49 PM
that sounds like what they do at rebel wheels
Title: Wheel widening
Post by: 86er on January 09, 2005, 12:37:02 PM
Hey Brutus, who did you contact to find out this info.
What company, address etc sounds great.
Thanks