Will 20mm wheel spacers fit on Factory 19"?

[thekawaii]

Again for my friend... (He cannot speak English)

He is buying a big brake kit his 2006 M35 sport, but +20mm spacers are needed to clear the calipers in the front.

He's got the factory 19" sport model wheels. He is concerning that tire might rub the fenders after installing the spacers.

I found out that "07sportsm35" is running 15mm spacers on the same wheels.

*07sportm35's car with the +15mm spacers.

Is it safe to run 20mm spacers on the factory 19" wheels?

Thanks guys.

[ken in az]

Yup, I just took off my 25mm spacers in favor of the 20mm ones. Never a moment did the tires contact the fenders.

My car is stock ride height but the consensus is 25mm on lowered cars, 20mm on stock is what looks best, but it is ultimately up to you for personal preference.

PS: search, this topic has been covered before. Lots of useful information here.

[thekawaii]

Thanks for confirming the issue.

I actually did my research for my buddy.

Found few threads but I just wanted to confirm it.

He is doing the Akebono brake swap on his M35 like yours.

Thanks Ken in AZ.

BTW, how is your brake? Any noticeable changes on the gas mileage and the handling beside the mad braking force?

[ken in az]

Thanks for confirming the issue.

I actually did my research for my buddy.

Found few threads but I just wanted to confirm it.

He is doing the Akebono brake swap on his M35 like yours.

Thanks Ken in AZ.

BTW, how is your brake? Any noticeable changes on the gas mileage and the handling beside the mad braking force?

I don't have them yet....gotta buy new shoes for our truck this month - btw I just found concept Z performance here in phoenix has them listed on their site for $1425

[M45Owner]

Yup, I just took off my 25mm spacers in favor of the 20mm ones. Never a moment did the tires contact the fenders.

My car is stock ride height but the consensus is 25mm on lowered cars, 20mm on stock is what looks best, but it is ultimately up to you for personal preference.

PS: search, this topic has been covered before. Lots of useful information here.

Ken. Have you heard anything on 25mm spacers on stock 19" lowered on eibachs springs ? I've heard of some running it 25mm on eibachs but it was an 08 M Sport with stock 19". Do you know if the offsets are the same? Also do you need a hub centric ring with spacers?
Modified by M45Owner at 3:30 PM 6/6/2009

[ken in az]

Ken. Have you heard anything on 25mm spacers on stock 19" lowered on eibachs springs ? I've heard of some running it 25mm on eibachs but it was an 08 M Sport with stock 19". Do you know if the offsets are the same? Also do you need a hub centric ring with spacers?

Modified by M45Owner at 3:30 PM 6/6/2009

Yes, hubcentric is highly recomended - but not 100% necessary. I'm not sure on the offsets of the new 08 wheels but I am 100% positive that 25mm work on the 06 wheels since I had them on my car.

[M45Owner]

Yes, hubcentric is highly recomended - but not 100% necessary. I'm not sure on the offsets of the new 08 wheels but I am 100% positive that 25mm work on the 06 wheels since I had them on my car.

Thanks Ken. I'm waiting on delivery on my eibach springs and 25mm spacers. Can't wait to get them on. I have the 19" OEM rims

[szh]

Yes, hubcentric is highly recomended - but not 100% necessary.

You probably know what I am going to say!

I believe that wheels spacers are the wrong way to go - it is much better to buy the wheel with the correct offsets for your car if you truly want them to be flush with the fender, etc.

More importantly, not having hub centric spacers (or wheels - assuming the center bore is larger than spec!) means that the centering of the spacer or wheel depends on the lug nuts alone. This can lead to vibration (off-balance) or too much pressure on the lug nuts, etc. This can be unsafe on our heavy cars.

Spacers, particularly non-hub-centric ones, are a recipe for problems with wheel bearings and vibration when braking (people then think their rotors are warping), etc.

Z

[fiveliterbeater]

You probably know what I am going to say!

I believe that wheels spacers are the wrong way to go - it is much better to buy the wheel with the correct offsets for your car if you truly want them to be flush with the fender, etc.

More importantly, not having hub centric spacers (or wheels - assuming the center bore is larger than spec!) means that the centering of the spacer or wheel depends on the lug nuts alone. This can lead to vibration (off-balance) or too much pressure on the lug nuts, etc. This can be unsafe on our heavy cars.

Spacers, particularly non-hub-centric ones, are a recipe for problems with wheel bearings and vibration when braking (people then think their rotors are warping), etc.

Z

i want to agree with you because you make some very good points; but these problems that you are describing, won't happen overnight and will probably never happen since most of us drive these cars very conservatively and only a small percentage of us drive them hard. obviously you would want a hubcentric spacer if you decide to go the "spacer" route, but over the past years, i've never heard of anyone posting any suspension failures due to spacers.could be wrong though, but along with all the scenarios that could happen, i have never heard of anyone complaining of any problems. im currently running 20mm spacers in the back and 15mm in the front. i notice my car handles better with the spacers on but that could just be my perception.

[ken in az]

You probably know what I am going to say!

I believe that wheels spacers are the wrong way to go - it is much better to buy the wheel with the correct offsets for your car if you truly want them to be flush with the fender, etc.

More importantly, not having hub centric spacers (or wheels - assuming the center bore is larger than spec!) means that the centering of the spacer or wheel depends on the lug nuts alone. This can lead to vibration (off-balance) or too much pressure on the lug nuts, etc. This can be unsafe on our heavy cars.

Spacers, particularly non-hub-centric ones, are a recipe for problems with wheel bearings and vibration when braking (people then think their rotors are warping), etc.

Z

Completely agree!!!! But can you get away without hubcentric? - yes - Will it cause said failures? possibly depending on installation torque and fatigue of the current lug stud.

I've tried to look around the net to find any failures by a spacer, and the two I found were due to improper installation.

I've ran non hubcentric spacers on a 3400lb race car for 35 laps around firebirds big track and countless miles on the road, and numerous quarter mile passes with never even a hint of vibration or failure.

But I agree, it can happen and when it does, do you really want to cheap out on non hubcentric spacers.

[M45Owner]

Completely agree!!!! But can you get away without hubcentric? - yes - Will it cause said failures? possibly depending on installation torque and fatigue of the current lug stud.

I've tried to look around the net to find any failures by a spacer, and the two I found were due to improper installation.

I've ran non hubcentric spacers on a 3400lb race car for 35 laps around firebirds big track and countless miles on the road, and numerous quarter mile passes with never even a hint of vibration or failure.

But I agree, it can happen and when it does, do you really want to cheap out on non hubcentric spacers.

I thought the project kics spacers were hubcentric? Am I mistaken?

[ken in az]

You probably know what I am going to say!

I believe that wheels spacers are the wrong way to go - it is much better to buy the wheel with the correct offsets for your car if you truly want them to be flush with the fender, etc.

More importantly, not having hub centric spacers (or wheels - assuming the center bore is larger than spec!) means that the centering of the spacer or wheel depends on the lug nuts alone. This can lead to vibration (off-balance) or too much pressure on the lug nuts, etc. This can be unsafe on our heavy cars.

Spacers, particularly non-hub-centric ones, are a recipe for problems with wheel bearings and vibration when braking (people then think their rotors are warping), etc.

Z

Completely agree!!!! But can you get away without hubcentric? - yes - Will it cause said failures? possibly depending on installation torque and fatigue of the current lug stud.

I've tried to look around the net to find any failures by a spacer, and the two I found were due to improper installation.

I've ran non hubcentric spacers on a 3400lb race car for 35 laps around firebirds big track and countless miles on the road, and numerous quarter mile passes with never even a hint of vibration or failure.

But I agree, it can happen and when it does, do you really want to cheap out on non hubcentric spacers.

[eergsxr]

have you done the install yet? if so can you please post pics

thanx

Thanks Ken. I'm waiting on delivery on my eibach springs and 25mm spacers. Can't wait to get them on. I have the 19" OEM rims

[07sportm35]

Here is a picture of 20mm in the rear and 15mm in the fronts. With the car lowered there are no rubbing issues at all.

By the way, I have a pair of hubcentric 15mm and 20mm for sale due to buying new wheels. I'll sell them for half what you can buy them for online. $70 shipped per pair.

[eergsxr]

nice ride, which springs are these?

also has any body ordered the spacers sold on ebay for $88 a pair?