Wheel spacers?

One word "rubbing" once space out the wheel would hit the guard and cause damage so they leave a gap for this. If they did space it out from factory the would have to increase the ride height to increase the gap. That's why everyone would roll guards when they lower and space wheels out.

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I will never understand wheel spacers. The cars are perfect as designed with wheels tucked inside the wheel well.

 

I have 15mm spacers on mine with 19" cs wheels no rubbing problems Image Unavailable, Please Login Image Unavailable, Please Login

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don't like wheel spacers, as it is a waste of wheel well - if you can add 1" of spacer, it also mean you can add ~1" of wheel width.

a sportier version of a car model always fill the wheel well better / wider track. so no, narrower is not a better design.

a negative with a wider track width is rocks kicking up onto side panels. a larger turning radius is another...

 

And you disrupt the aero from the wind tunnel if you intend going fast.

 

Just in case on interest have 2 sets of Hill engineering 11mm spacers front and rear

 

My 360 had F430 wheels and spacers when I got it. That car also had a fairly major transmission problem. I always wondered if the heavier than meant for the car wheels put extra stress on the transmission and if that stress was exacerbated by the heavier wheels being further away from center than ever intended.

 

guys, I want to get 15mm spacers and correct length bolts...help.... H&R sells 15mm but I don't know what bolts to get for it.... what length, if I'm adding a 15mm spacer.....wheels are oem Ferrari scud rims for 2008 f430/non scud...

thanks,

james R

 

Stock 360 bolts are 52 mm from the tip of the bolt to the start of the conical head. If you want 15mm longer bolts, you'll need them to be 67mm.

https://www.ricambiamerica.com/ws015-2-x-15mm-spacers-10-long-bolts-type-1.html

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If you get wheel spacers, get longer wheel bolts.
I put spacers on an old corvette I had when I was a kid and had problems with stock wheel studs getting sheared off. a bad thing when it happens on a highway.
that's why these days, I don't like monkeying around with this kind of stuff. although I agree, wider looking wheels are always a more modern, performance oriented look.

 

with Hill Engineering type 2 wheel spacers. I guess you have to remove the 2 screws that holds brake rotor to hub? kinda strange.

 

Why strange? They only serve to align the holes and that is replaced by the bolts holding it together. Plus, cutting out a slot for the screws would cause an imbalance in the spacer.

 

My H&R spacers where just bolt on

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Spacers are illegal here. I had them on a 360 and found out when I sold the car.

 

Illegal here too unless certified by an engineer.

 

Must be a “down under” thing. Seriously, though, even with stock spacing and offset, if you really drive the car as intended, your tires will contact the fender arches. Not what you’d want to happen when doing that.


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Agreed.
I believe there are a number of write-ups on FChat on this issue. The primary issue is the aerodynamics and airflow along the side of the car (at least for a 430, from what I've read). Making the wheels stick out further or flush with the fenders eliminates/ or impacts the airflow and aerodynamic design. Anyway, I'm no expert but do a search and you'll come up with the technical rationale.

Personally, I put on larger/wider HRE's on my car and haven't adhered to the rationale above, but that's because I don't track or use my car to its fullest design capacity.....LOL.....Just doing what looks good to me

Cheers
FN

 

I get why you would add spacers if you like that look. But, you are compromising the suspension geometry and setup so you give up handling. Plus you add unsprung weight and increase rotational mass so you compromise handling there as well. Yes, I know many here say "it makes no difference" but simple geometry says they are wrong. Personally, I wouldn't give up the handling just to get a slightly fuller wheel well unless I just use the car for fun driving, not performance.

 

that's what Miata chief engineer said in his book, how Miata was optimized for 14x5.5" wheel and 185/60-14 tires. Anything wider would upsets its suspension geometry.

Fastest Miata (many many of them) in the country now run 15x10 and 245/40 tires. National champion autocrossers are on 15x11 and 275 tires. new 15x12 were just release this month to match up to the new Hoosier 295 tires.

YES, they are all still on stock suspension geometry.

 

HE Type 2 spacers do not require anything to be done to the hub. They bolt straight on using the hub's original wheel bolt holes and then the wheels bolt into hardened inserts in the adapters. Have them on the back of mine. 25 mm is the smallest size, though, to allow enough depth for the original wheel bolts.

 

I didn't say you can't make it work, I said it changes significantly. To argue that larger wheels and wider tires (more unsprung weight) universally improves handling is silly. It is a tradeoff directly tied to the setup. Plus, I am 100% sure that those guys are NOT on stock suspension setups. They have changed springs, sway bars, drop links, shocks & valving, etc. AND they did a new setup for caster, camber, toe, and more. 100% not stock. Plus, the same setup at high speed, may make the car uncontrollable. They are trading off turnin for pretty much anything they don't use.

Think of it this way: a 25mm spacer on a 10" wishbone increases the wheels leverage 10% effectively lowering the spring rate. Spacers also changes the scrub angle and a bunch of other stuff. Lower or raise a car and you change a LOT of stuff including bump steer, camber, etc.

 

+1. Nothing goes on my car unless it makes it faster or at least has no negative effect on performance or handling.


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You still have either of these sets of 11mm spacers?