Mondial aftermarket wheel offset

I apologize if this has been covered before, but I've searched the forum and thought I had an answer, but a discussion with a wheel shop provided me with a disparate answer.

The question: Would a 17x8 wheel (5x108 bolt pattern) with +40 mm offset work on a Ferrari Mondial?

I was advised by a wheel shop that the Mondial requires a 0 offset. That doesn't seem to make sense to me as the Mondial's stock wheels look to have a pretty significant positive offset. (The wheel center looks nearly flush with the lip of the wheel instead of being dished.)

If anyone would assist me, I would greatly appreciate it! I have yet to receive my Mondial, but I'm already planning to remove the TRX tires and wheels.

Bob

 

Wow! Thank you Zertec! I can't believe I missed that thread. That answers my questions. I think I can live with a little bump-steer if it saves me from having to buy four 240/55-390 TRX tires at $415 a piece! YIKES!

Bob

 

Hi Nathan,

LOL - yeah, I think we're going to be going through a lot of the same things together!

I had thought about the 348 and 355 wheels, then I thought about the 16" reproduction from Superperformance.uk... but after some thought, I decided that I'd probably go aftermarket for wheels. My calculations show that a 240/55-390 is about 25.7" in diameter, so I was looking for a 245/45-17 which is 25.6" in diameter. A 245 width tire would make me look for a 7.5 or 8" wide wheel.

I have Shoreline Motoring (in Huntington Beach) looking at reasonably priced wheels for the Mondial, but 2 wheels that caught my eye off eBay that are very reasonably priced are the Voxx MG and the Voxx Misano.

Bob
Image Unavailable, Please Login
Image Unavailable, Please Login

 

LOL! I think the charter of the MSG (Mondial Support Group) would be to feed the enthusiasm and frenzy of Mondial owners!

Those wheels are, believe it or not, $400 a set + 100 shipping on eBay from "2 Day Parts" They are 17x7 (for the 5-spoke "MG"), or 17x8 (for the Misano -mesh pattern wheel) with 5x108 bolt pattern and ET +40 offset. I'm leaning toward the Misano myself, but mostly for the 8" width. Otherwise the 7" width, 5-spokes look awesome to me. Maybe I need to photoshop these on a Mondial? Y'know, to suppor the MSG and all...

Bob

 

Thanks Meister. I got a number to Ronal USA and to American Eagle because, apparently, they have fitments for the Mondial and, I would guess, the 308 as well. But I agree... there's the easier route of purchasing what is immediately available, or there's the (as you stated) DIY approach which might mean finding a wheel that will work, but will require milling the center bore, etc.

I'll advise what I find out. I plan to stop at Discount Tire near me to take a look at both the Misano and the MG in person to determine what I think will work best for the Mondial.

As an aside, I am still a bit torn as to which tire size to use. The metric TRX size translates into using a 245/45-17. But I'm not sure if I want to go staggered (less steering effort required, more understeer, rotating tires not an option) or going with the same size tire all around (can rotate, higher effort steering.) My inclination is to go with tires that I can rotate and live with the higher steering effort...

Bob

 

I just checked on Tire Rack, and the recommended, staggered size for a 17" rim is 225/45-17 front, 255/40-17 rear. Interesting as those are both not as tall as the TRX tire and are about 3% smaller. Did Ferrari change the speedometer ratio/gearing for the Mondial 3.2 and Mondial T?

I guess I could go 225/50-17 all the way around. That would put me at 25.8" diameter, or about .5% taller. I'd like to get a bigger footprint on the ground since the Mondial is a 3500 pound car, and I do like to put a car through its paces...

Bob

 

Well, after chatting with Charlie at 2 Day Parts, it's come down to this:

1. The Voxx MG is only available (currently) in a 17x7 with ET +40. If this wheel is used, I would pretty much have to use the 225/50-17 sized tire since a 245 width tire would be too wide on a 7" rim.

2. The Voxx Misano and Ancona (Ancona looks like a Mercedes C32 AMG style wheel) are available in 17x8 with ET +40 offset. Using this wheel would allow use of a 225/50-17 or a 245/45-17 tire.

My wife prefers the MG, while I like both. I think the MG would provide a more classical Ferrari look, while the Misano, as my wife states, has more of a snowflake look about it. Decisions, decisions...

 

IMO, not too bad, but I prefer not to have the extra lug holes that manufacturers add to accommodate multiple lug patterns. Plus I'm not a big fan of extra rivets/bolts around the wheel unless the wheel is truly a modular wheel.

I did more research and, if going with at 7" width, I'd think you'd want to look for a +35 or +38 offset wheel for the Mondial. I will almost certainly go with an 8" wide wheel and +40 offset, so it looks like the Misano for me.

I will call Voxx directly tomorrow to see if they can confirm the diameter of the center bore. It will need to be at least 67 mm in order to clear our hubs. I'll post what I find out...

Bob

 

Searching around the web, I think the Voxx wheels have a center bore of 74.1 mm (I'll confirm with a phone call tomorrow.) The Mondial has a hub diameter of 67.1 mm. That means that we're going to need a hubcentric ring. 1010tires.com has just the rings needed for $22.99 for the set. Again, I'll double check the bore, but if I'm right, we'll need those hubcentric rings.

Bob

 

OK, here's the scoop I got from Voxx Wheel.

Voxx MG
Place of Manufacture: Thailand
Size Available: 17x8 +20 offset (no +40 in 17x8)
Center Bore: 73 mm
America's Tire model #: 55881

Voxx Misano
Place of Manufacture: China
Size Available: 17x8 +40 offset
Center Bore: 73 mm
America's Tire model #: 61649

From 1010tires.com, you can purchase either plastic hubcentric rings ($22.99) or aluminum hubcentric rings ($32.99) The hubcentric rings required are 73mm outside diameter, 67.1 mm inside diameter. America's tire should also have the same.

Scott from Voxx Wheel was an amazing wealth of knowledge. He advised, even with the hubcentric ring, there may be some vibration in the steering wheel since the wheels are made lug-centric. So his advice was to go to America's tire since, if there's a problem, they can help to resolve the vibration or can accept the wheels as returns.

BTW, if anyone wants to contact Scott (who is an auto enthusiast), his email is [email protected]

Hope that helps!

Bob

 

Thanks Frankty! Thank link is awesome! I had purchased another set of center caps (authentic Ferrari pieces) in the anticipation of having those fitted, but this website provides me with exactly what I need. I guess I won't need those center caps after all and can put those center caps on eBay...

Bob