The Negatives The main issue with a wheel spacer is that it moves the wheel to a wider position whilst the rest of the suspension arms remain in the same place. In particular, the king pin inclination axis remains in the same place. Therefore, fitting a wheel spacer moves the wheel outboard and alters the scrub radius of the car. It is important to know whether your car currently has negative or positive scrub radius and ideally how much it has. Fitting a wheel spacer will increase the positive scrub radius at the front wheels which has some unfavorable consequences. If your car already has a bit of positive scrub radius then the wheel spacer will increase it. An increase in positive scrub radius increases the forces on the steering rack under braking conditions. Any bumps in the road will also be amplified through the steering wheel, making the steering jerky and more unpredictable. Twitching wheels when braking can cause the tire to lose grip and ultimately can cause the wheels to lock up and slide. An increase in positive scrub radius also causes the wheel to gain positive camber when the wheels are being turned, reducing grip in corners on the front wheels and producing understeer.If your car has the more favorable set up of negative scrub radius then installing a wheel spacer can cause bigger issues. The outward movement of the wheel can make a negative scrub radius become zero. This is the worst position for it to be in. A zero scrub radius can cause squirm. This is where a scrubbing action occurs on both front tyres in opposite directions which can create unpredictable handling in corners and can lead to understeer too. Secondly, installing wheel spacers on a car increases the leverage on the wheel bearing. The larger the spacer, the larger the leverage becomes. This reduces the life of the wheel bearing as they are not made to take leverage forces and can therefore wear faster, increasing rolling resistance and power loss of the car. Finally, the wheel spacer moves the wheel further away from the damper mounting point. This means that the wheel will have a larger effect upon the damper and will act upon it with more leverage. This effectively makes the spring and damper softer and less effective on the wheel. This means that the car can roll more on corner entry and exit and feel generally softer out on track or on the road.”
That's fine. Me got an e46 for over 20 years. 10+ years driven with spacers in the winter and very low ET summer... style 32 18ich 7er's. Not a single issue except a bad ass stance
One problem is math, just watched a vid of some helpful fella putting 12mm frt and 20mm rear spacers. But he never did the math. Researching on my own, his rims were stock ET33 frt and ET44 rear. Thats 33-12=ET21 Frt and 44-20= ET24 rear. It looked good but the problem is not all rims are the same ET. You need to check your ET spec then get a general range of where you want to end up. As for me I have ET30 wheels so 12mm is likely plenty I may just go 10mm and not risk rubbing the fender. The size pics were great in ths vid!
Is M340 in the video a staggered or box wheel setup? I have a staggered G20 and I'm wondering how the wider wheel in the back would affect my spacer choice
I noticed that the back tyres are the 225/40 R19 same as the front. Which means they are not staggered. Which means that if I put 15 mm spacers at the rear with 255/35 19 tyres will they protrude the wheelarches?
recently bought 2020 m340i... tried 15 mm no prob... tried 15 mm prob....1) rub against the front inside wall. 2) handling is not as good as 12 mm which also rub the wall too solution... use 12mm for front. trim down the front inside wall (venting)... my wheels are 19"
BMW projects clearly get allot of attention. How about a Z3 (Coupe) N54, N55 or B58 swap build or Z4 (Coupe) N54, N55 or B58 swap build. Both cars would be complete keepers as they are rarely modified and rare in itself.
Best before and after I’ve ever seen when you jump from stock to 10-12-15 keeping the same angle really helps visualize them better
The Negatives
The main issue with a wheel spacer is that it moves the wheel to a wider position whilst the rest of the suspension arms remain in the same place. In particular, the king pin inclination axis remains in the same place. Therefore, fitting a wheel spacer moves the wheel outboard and alters the scrub radius of the car. It is important to know whether your car currently has negative or positive scrub radius and ideally how much it has. Fitting a wheel spacer will increase the positive scrub radius at the front wheels which has some unfavorable consequences.
If your car already has a bit of positive scrub radius then the wheel spacer will increase it. An increase in positive scrub radius increases the forces on the steering rack under braking conditions. Any bumps in the road will also be amplified through the steering wheel, making the steering jerky and more unpredictable. Twitching wheels when braking can cause the tire to lose grip and ultimately can cause the wheels to lock up and slide. An increase in positive scrub radius also causes the wheel to gain positive camber when the wheels are being turned, reducing grip in corners on the front wheels and producing understeer.If your car has the more favorable set up of negative scrub radius then installing a wheel spacer can cause bigger issues. The outward movement of the wheel can make a negative scrub radius become zero. This is the worst position for it to be in. A zero scrub radius can cause squirm. This is where a scrubbing action occurs on both front tyres in opposite directions which can create unpredictable handling in corners and can lead to understeer too.
Secondly, installing wheel spacers on a car increases the leverage on the wheel bearing. The larger the spacer, the larger the leverage becomes. This reduces the life of the wheel bearing as they are not made to take leverage forces and can therefore wear faster, increasing rolling resistance and power loss of the car.
Finally, the wheel spacer moves the wheel further away from the damper mounting point. This means that the wheel will have a larger effect upon the damper and will act upon it with more leverage. This effectively makes the spring and damper softer and less effective on the wheel. This means that the car can roll more on corner entry and exit and feel generally softer out on track or on the road.”
I love my G20 stock man it looks too good to change I have competition rims on them with P Zero perelli
@@malektalge is the p zero run flat
After reading your comment i made the conclusions that i am not going to get it and get the vossen hf 5 wheels.
That's fine. Me got an e46 for over 20 years. 10+ years driven with spacers in the winter and very low ET summer... style 32 18ich 7er's. Not a single issue except a bad ass stance
What about this Bmw m340i xdrive ? I wanted to buy spacers for mine but now I am not sure if this is safe
With the 15 in front. There’s no rubbing issue. Stock suspension
One problem is math, just watched a vid of some helpful fella putting 12mm frt and 20mm rear spacers.
But he never did the math.
Researching on my own, his rims were stock ET33 frt and ET44 rear.
Thats 33-12=ET21 Frt and 44-20= ET24 rear.
It looked good but the problem is not all rims are the same ET. You need to check your ET spec then get a general range of where you want to end up.
As for me I have ET30 wheels so 12mm is likely plenty I may just go 10mm and not risk rubbing the fender.
The size pics were great in ths vid!
I have on my G20 12mm /12mm on all wheels and looks perfect for my taste..it’s on eibach pro kit springs...
Is yours staggered setup?
does it have better road handling?
How about comfort?
Really helpful!
Ordering from LA now.
Thank you🎉
this is great - wish I could see this for a BMW G22 M440i!
I’d love to see that too
Any updates?
Is M340 in the video a staggered or box wheel setup? I have a staggered G20 and I'm wondering how the wider wheel in the back would affect my spacer choice
Nice video,thank you for compare 5:32
👍👍 Great video! I'm really loving the VAC spacers & stud conversion that I bought from you! (Along with the bootmod3!!)
are those the Machined Charcoal or jet black 792M wheels? cant tell because of the lighting but looks like those are the Machined Charcoal
I noticed that the back tyres are the 225/40 R19 same as the front. Which means they are not staggered. Which means that if I put 15 mm spacers at the rear with 255/35 19 tyres will they protrude the wheelarches?
Do spacers affect the way the car drives?
It absolutely does you need to know if your car have positive or negative scrubs very important to know
@@mrnicetomeetyou3646 what about BMW m340i x drive is it safe to install spacers
Can you tell me what size wheels are on this car please
Does making this change effect the driving?
Better handling because it's slightly wider
after put spacer in, do we need to do the alignment?
nah
Do you guys still recommend 15mm spacers on a square setup?
Are the studs coated like the OE bolts for corrosion?
Which front lip do you have? It looks sick in my opinion
What are good options to look for when buying a G20?
Thanks for the vid!
Is this the xdrive option? And has this tweaked out the traction?
Anyone know what rim model those are? It makes a difference based on offset and rim width.
792
Would I have any problems with the suspension or anything else on the car? This is a car I would like to keep.
Hi Bryan! Always love the intro music, would you mind where you sourcing the music
Thanks!
A very helpful video bro
Does that affect driving?
No it doesn’t 👍
12mm front, 13mm back look the best!
On my 2011 X5, the wheels were too wide for the arch and the paintwork was sandblasted. Surely this will do the same?
What front lip is that?
recently bought 2020 m340i... tried 15 mm no prob... tried 15 mm prob....1) rub against the front inside wall. 2) handling is not as good as 12 mm which also rub the wall too
solution... use 12mm for front. trim down the front inside wall (venting)... my wheels are 19"
Thank you
Can't see for F10 series but I believe should be the same.
Hmm so if I got 225’s all around what do you suggest?
Can you do one for the G42
Just ordered some h & r springs what spacer set up would y’all recommend
did you go with 12mm on front and back?
What did you end up going with?
@@blakeenicholshopefully he went with 15mm all around
So would these fit the 2024 330i?
is this the same on the g20 320d?
is it have any bad issues at vortex effect? g20 has two hole on front bumper for vortex effect.
I’d 12 F 15R
That’s dope though
Can you dino your 335i already?
yeeeeeah!!!!! Thanks!!!!!
COOL MOVE.
Please make the same with the F80/82
How about f97/f98 M style wheels on g01/g02 ?
NICE!!
Do these people have a proper detailed video on how to install a bigger turbo?
BMW projects clearly get allot of attention. How about a Z3 (Coupe) N54, N55 or B58 swap build or Z4 (Coupe) N54, N55 or B58 swap build. Both cars would be complete keepers as they are rarely modified and rare in itself.
No negative: but the car should of been moved so the suspension can settle to its normal geometry, as that will alter the look.
It hardly makes a difference, especially on camera.
I have to disagree. Jack you car up and then look at how the geometry has changed, then move the car to settle back. There’s a massive difference.
Will that fit an 2022 bmw 330i?
It's the same car
I’ve gone with the BMS recommended 12.5mm rear and 10mm front
can you please do a spacer guide for the A90 Supra?
What should be the perfect spacers for 2012 bmw 550i xdrive ?
I thought G20 was the new 5 series
Has anyone done 20mm rear 15mm front ??
No
I bet the sidewalks will like the 15s 🤣
💪
I’m try to win them on your IG give away I tag 3 and I subscribe to your RUclips channel
👌
Has anyone done 15mm rear 13mm front ??