355 Spacer

After market. And unless ya have a set of standard wheel bolts leave them on.

 

Yep, unless you have 53mm wheel bolts laying around yours are now too long.

 

Agreed
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hey chaa! what tire sizes are you running??

 

Agree completely

 

295/35/18 rears with 11mm spacers

 

Sounds pretty wide. Any problems with rubbing??

 

I have the exact same setup as CHAA, same spacers and tires / size and I NEVER had any problem with rubbing at all! You just can't beat the look... looks so much more aggressive!
gordon

 

How about the front?

 

11mm spacers all round. No problems what so ever. Even tyre wear fantastic grip great stance.

 

I have the same set up different tires but the look and lack of problems I agree with.

 

What tire sizes are you running?

chaa is running 295/35/18s rear. 235,40,18 front.

 

you didn't mention the brand name of the tires that you and Gordon are using.

 

I have 295 rear on Challenge wheels with a 15 mm spacer. Perfect. Tire comes right to edge of fender. Fronts are 225 with 15mm spacer. I have a set of HREs with 295 rear no spacer and 255 front no spacer. After lowering the car, the front fender needs to be rolled, otherwise without lowering, no rubbing.

 

I almost bought some of those spacers. I returned them because the diameter is too small to capture the rubber seal on the wheel. That rubber seal on the factory 355 wheels is there specifically to "seal" the bare magnesium on the mating interface from the outside elements.

Magnesium corrodes very easily and can weaken with enough corrosion. So if that spacer does not meet up with the seal, you are exposing the "bare" magnesium to moisture, detergents, brake dust and who knows what other bad stuff.

Needless to say I will be making my own spacers. I will size them to take advantage of the design purpose of that rubber seal.

 

I belive you are getting confused with "Magnesium" and "Magnesium alloy"

This is a very interesting site that goes into detial on Magnesium Alloys:

http://www.azom.com/details.asp?ArticleID=355


It is often said that Magnesium alloy wheels have low corrosion resistance - this is not quite so provided they have been manufactured correctly.

The 355 & 550 were the only cars fitted with this rubber seal and yet the likes of the 512TR, 360, 430 etc have Mag alloy wheels and no rubber seal.

Even though Ferrari have done away with any seal on the latter cars with Mag Alloy wheels ,we could possibly look at doing something as a special kit for the 355 for people who want to retain the sealing of the ring.

Paul

 

Paul
The 360, 512tr & 430 wheels are "aluminum", and have a higher corrosion threshhold. Thereby eliminating the need for the rubber seal. The "355" wheels are magnesium or a magnesium alloy variant and is more susceptible to corrsion. I have seen some "challenge wheels" (magnesium) with high levels of corrosion because they "don't" have the seal by design. Because these are "racing wheels" they did not see the need for "long term" use and the added weight.

 

Can you tell me where you sourced your information?

I have a set of OEM 512 TR wheels that weigh approx 30% lighter than the set of 512 TR reproduction wheels I have in aluminium? (Both sets are identical to look at)

Paul

 

My info as I understood it, is from a combination of a few friends who together have restored/worked on a couple of hundred f-cars. As for your 512 wheels, replicas are almost always heavier than originals. Replicas are usually gravity cast (cheaper to do) and will use more material to make up for the the strength that forgings or pressure castings have. Therefore the additional overall weight.

Forgings are the best they can use less material and are very repairable should they be damaged.

One of my friends that I spoke of now mostly deals in wheels for high end cars. He can make any wheel design to order. Sorry for the plug: www.eurospeedz.com

I will verify my understanding of the different wheel materials with him as I will be seeing him this week.

 

sorry for the stupid question but I rather ask here then start a whole new thread. I will go with 11mm spacers all around. After doing this, does the car need to be realigned? If I take this on the track is it safe?

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