[RC3]

Originally Posted by BMMW

Later, may be change the tire little bit wider (may be 245) for the front only. Haha !!! The rear no need be changed since 528i power is not enough 用盡條呔.
hehe

Originally Posted by BMMW

275 rear will consumed more fuel and reduce the torque .

Do you mean a staggered set up of wider front tires and narrower rear tires? Very innovative, please give us a review.

Originally Posted by dyip99

The weight of 327 is 11.88kg= 26.2lbs and 356 weight in at 15.6kg=34.4lbs

Originally Posted by mlai

Exactly! I think BMMW's 20" experience was ruined by the 356s

Originally Posted by ICIC

Totally agreed!!

Bros, thank God we have experienced members like you guys.

Originally Posted by BMMW

How about get lighter 17" rim and non-RFT.

Originally Posted by mlai

Non-RFT will help. But not quite sure how much of a difference you are going to see with lighter rims

Concur mlai. 17" light performance rims for F10, really need to dig hard to find them. May be custom made?

[mlai]

Originally Posted by BMMW

How about yr F14 rim feeling now after a period driving?

Beats the pants off the 356s for sure. You do know that the F14 20" are only 25lbs each, lighter than your 327, right?

[grimlock]

Originally Posted by hksl

I would think 19'/20' non-RFT would have similar ride to OE RFT 17's especially those horrible Goodyears. Since you guys got really light wheels, I would imagine that would ride and handle beautifully.

I also have a 528 and I think it has plenty of power, course I'm cheap I'm going to get 18' OE take offs with 245/275 staggered set up.

Good economy choice ... i like

[BMMW]

Originally Posted by mlai

Beats the pants off the 356s for sure. You do know that the F14 20" are only 25lbs each, lighter than your 327, right?

Are you really weight the F14?

[mlai]

Originally Posted by BMMW

Are you really weight the F14?

Didn't weight on a scale. But compared to a set of OEM 17" wheels at my tyre shop, F14 definitely tiny bit lighter, nice considering the F14s are 20" wheels. Actual figures are direct from Forgestar.

Yes, I was being anal and checked with all the manufacturers regarding specs before I bought the F14

[cwong]

Originally Posted by jxnco

I drove for 2 months with my stock rims so I have a pretty good feel of how stock should feel like. And after driving for about 200 KM with my new set up, this is what I can say:

1. In terms of acceleration, no change at all. I don't think it's any faster or slower. Feels exactly the same as before.

2. In terms of braking, I would say braking improved by about 10-15%. This is probably because of the reduced unsprung weight ( I shed close to 45 lbs). I don't have that feeling of skidding if I hit the brakes hard. It's a heavy car and factor in how much unsprung weight it has, you have to be worried about how much momentum it has when you do a sudden stop.

3. In terms of noise, same as stock. I don't think it's any noiser. This is probably due to the tires. Michelin's are really soft and quiet. RC3 thinks the Advan's are noisier.

4. In terms of comfort, surprisingly, almost the same as stock. It's not bumpier or harsher. Well maybe just 5% harsher? My wife never noticed any change to the ride comfort. She thinks it's the same as before.

5. In terms of drop if it's too much, not at all. This was my biggest worry before. Turned out it's completely fine. The F10's tire size is big. Even with the 1.4" drop, it's still higher than most cars.

6. In terms of handling, this is where it gets interesting. I can feel better control of the car. It finally drives like a BMW. I can do sharper turns with ease at the speed I want. The car actually goes where you want it to go without any hesitation. Driving the car is a lot more fun now! Best part is, my wife noticed the body roll got reduced.

Overall, a very worthwhile upgrade. Aside from making the car look sexier, I got better performance. I highly recommend it to everyone who wishes to improve handling while maintaining passenger comfort. Of course, you need to pick the wheels, tires, and springs wisely. So far, my combo worked beautifully.

Just my 2 cents.

i'm going to get my 528 in the coming week and is considering to change to a 20" rim and perhaps the spring too.

May i know which rim you are using? I like the outlook of 356 but after seeing this threads I'm afraid i need to reconsider.

And I asked BMW service advisor whether chaning the spring will affect the functioning of the sport mode. But he wasn't able to give an answer. Do you have any idea?

Thanks!

[RC3]

Originally Posted by cwong

i'm going to get my 528 in the coming week and is considering to change to a 20" rim and perhaps the spring too.

May i know which rim you are using? I like the outlook of 356 but after seeing this threads I'm afraid i need to reconsider.

And I asked BMW service advisor whether chaning the spring will affect the functioning of the sport mode. But he wasn't able to give an answer. Do you have any idea?

Thanks!

cwong, we talked about these issues too much. Go through the threads in the asia section.

Mlai, dyip and me have Forgestars, flow-formed and bargain for its quality and look. Mlai will swap to something nicer soon, see if you want to buy his.

Jxnco has Morr, have to order from US. Nicer and cost a bit more.

Jacky has Forged 1 on order from US. Forged and even nicer but $$$.

Me, Jxnco and chiver have H&R springs. Dyip has RD springs. If you swap to aftermarket springs of course your warranty will be void for the suspension. We figured the suspension won't have much trouble in 1 or 2 years time so we changed and took the risk.

If you don't have adaptive drive ie electronic damper and stabilizer, changing the springs won't affect your Dynamic Driving Control button (normal, sport, sport+).

Hope this helps.

[cwong]

Originally Posted by RC3

cwong, we talked about these issues too much. Go through the threads in the asia section.

Mlai, dyip and me have Forgestars, flow-formed and bargain for its quality and look. Mlai will swap to something nicer soon, see if you want to buy his.

Jxnco has Morr, have to order from US. Nicer and cost a bit more.

Jacky has Forged 1 on order from US. Forged and even nicer but $$$.

Me, Jxnco and chiver have H&R springs. Dyip has RD springs. If you swap to aftermarket springs of course your warranty will be void for the suspension. We figured the suspension won't have much trouble in 1 or 2 years time so we changed and took the risk.

If you don't have adaptive drive ie electronic damper and stabilizer, changing the springs won't affect your Dynamic Driving Control button (normal, sport, sport+).

Hope this helps.

Thanks mate, and also your quick reply in another thread!

[dyip99]

RC3 and mlai, did you uses the O.E lug bolts or went aftermarket ones?

[Jacky328]

Originally Posted by RC3

Me, Jxnco and chiver have H&R springs. Dyip has RD springs. If you swap to aftermarket springs of course your warranty will be void for the suspension. We figured the suspension won't have much trouble in 1 or 2 years time so we changed and took the risk.
Hope this helps.

Hey RC3 bros, don't forget count me!
I already joined your party by ordered ACS spring too!

[mlai]

Originally Posted by dyip99

RC3 and mlai, did you uses the O.E lug bolts or went aftermarket ones?

I just use oe.

[ICIC]

Originally Posted by Jacky328

Hey RC3 bros, don't forget count me!
I already joined your party by ordered ACS spring too!

Here's the same, don't forget me. Just joined your party and ordered a set of KW V3 coilover today, count down for 3 weeks waiting time.

[ICIC]

Originally Posted by mlai

Didn't weight on a scale. But compared to a set of OEM 17" wheels at my tyre shop, F14 definitely tiny bit lighter, nice considering the F14s are 20" wheels. Actual figures are direct from Forgestar.

Yes, I was being anal and checked with all the manufacturers regarding specs before I bought the F14

From what the shop told me, the 20" forgestar weight just around 11kg

[mlai]

Originally Posted by ICIC

From what the shop told me, the 20" forgestar weight just around 11kg

Which is around 24lbs

[ICIC]

Originally Posted by mlai

Which is around 24lbs

Correct, forgestar is light weight and good quality.

Good calculation mlai LOL

[ICIC]

:cool!

Originally Posted by RC3

Me, Jxnco and chiver have H&R springs. Dyip has RD springs. If you swap to aftermarket springs of course your warranty will be void for the suspension. We figured the suspension won't have much trouble in 1 or 2 years time so we changed and took the risk.

If you don't have adaptive drive ie electronic damper and stabilizer, changing the springs won't affect your Dynamic Driving Control button (normal, sport, sport+).

Hope this helps.

No worry, for those who afraid swap with aftermarket spring will damage the shocks in the future, just get a spare set. I'm willing to sell mine OE shocks which used for 2500km only. Give me an offer, if interested?

[RC3]

Originally Posted by dyip99

RC3 and mlai, did you uses the O.E lug bolts or went aftermarket ones?

I guess OE, I didn't notice and don't think the rim shop swapped me aftermarket ones.

Originally Posted by Jacky328

Hey RC3 bros, don't forget count me!
I already joined your party by ordered ACS spring too!

Congrats, you mentioned it but didn't know you pulled the trigger.

Originally Posted by ICIC

Here's the same, don't forget me. Just joined your party and ordered a set of KW V3 coilover today, count down for 3 weeks waiting time.

kinda jealous. hehe

[BMMW]

Originally Posted by cwong

i'm going to get my 528 in the coming week and is considering to change to a 20" rim and perhaps the spring too.

May i know which rim you are using? I like the outlook of 356 but after seeing this threads I'm afraid i need to reconsider.

And I asked BMW service advisor whether chaning the spring will affect the functioning of the sport mode. But he wasn't able to give an answer. Do you have any idea?

Thanks!

20"wheel is really not a good choice in term of the performance.
You can see the Formula-1 do not use the big wheel with the thin tyre.
Formula-1 is using the small wheel with the thick tyre.
Even the 550i, price over one million, the oem wheel is 18"only. It is not because for saving the cost, since that cost is little when compare the whole cost , it is because for the better comfort and performance.

If only for the better outlook, it is ok!
But you will suffer the bumpy , noisy and more fuel comsumption.

[grimlock]

Originally Posted by cwong

And I asked BMW service advisor whether chaning the spring will affect the functioning of the sport mode. But he wasn't able to give an answer.

Wah, what is the difference between that SA and a random person on the street? He need to spend more time reading internet forums to increase his knowledge for his job.

Or maybe we are spending too much time here .. more than a job

[jxnco]

Originally Posted by BMMW

20"wheel is really not a good choice in term of the performance.
You can see the Formula-1 do not use the big wheel with the thin tyre.
Formula-1 is using the small wheel with the thick tyre.
Even the 550i, price over one million, the oem wheel is 18"only. It is not because for saving the cost, since that cost is little when compare the whole cost , it is because for the better comfort and performance.

If only for the better outlook, it is ok!
But you will suffer the bumpy , noisy and more fuel comsumption.

Formula one is different than city driving. They burn tires every how many laps. I can't imagine them using thin tires.

About the 18" wheels that come with the 550, if BMW gives you their OE 20" wheels which is cast plus RFT tires, you are right. It will be bumpy, noisy, and extremely uncomfortable. I think that's the reason why the 550 only comes with 18".

One more reason is BMW like all other car manufacturers know every one's taste is different. Some prefer performance over comfort. Some prefer comfort over performance. They need to find a middle ground where every one's needs will be satisfied somewhat. It's up to the buyer to modify the stock car to suit their taste. If the buyer wants more comfort, he can change to 16 or 17" tires with non RFT more maximum comfort. You are free to do as you choose as this is your car.

The 5 series is an executive sedan. Most of the buyers will be older (ouch I'm part of this group hehehe) than those who prefer compact executive cars like the 3 series. Hence BMW will assume people who buy this car is looking for slightly more comfort over performance so they chose to give the car smaller wheels. The M3, M5, VW Golf GTI and a lot more cars out there that are "fun to drive" are considered performance oriented and all of them have bigger wheels.

Of course if you can have both performance and comfort plus looks, why not go for it? That's what most of us did and went for. Mlai has driven an F10 with cast 20" rims and he agrees with you. The car is sluggish. But he also has driven an F10 with lighter wheels and he swears it's completely different.
In terms of comfort, everyone's taste is different. What might be comfortable to me might not be comfortable to you. I drove around my stock wheels long enough to say there's very little different between 17" RFTs vs 20" non RFTs.

At the end of the day, if you are happy with your set up, good for you. That will save you a lot of cash. If you think stock performs the best, BMW did a fantastic job then. Your profile probably weighted the most in their consumer research that's why stock fits you best.

For the rest of us unlucky ones, we need to spend a ton of cash to get maximum satisfaction out of the F10. I think everyone will agree with me, it's money well spent

[RC3]

Well said Jxnco. I totally agree with you. I guess this bro was saying don't go for OEM 20" and not aftermarket forged or flow-formed rims. Otherwise I am speechless....

Yap, M3, 1M, M5 all use low larger rims and low profile tires. For M3, profile 40 with option of 35. I wouldn't say these cars have worse performance with the set up.

To each his/her own, we are not saying the stock wheels are no good. But our aftermarket set up definitely has equivalent ride comfort and fuel consumption based on our experience and not trash talk. Handling and cornering absolutely have improved tremendously.

[BMMW]

Originally Posted by RC3

Well said Jxnco. I totally agree with you. I guess this bro was saying don't go for OEM 20" and not aftermarket forged or flow-formed rims. Otherwise I am speechless....

Yap, M3, 1M, M5 all use low larger rims and low profile tires. For M3, profile 40 with option of 35. I wouldn't say these cars have worse performance with the set up.

To each his/her own, we are not saying the stock wheels are no good. But our aftermarket set up definitely has equivalent ride comfort and fuel consumption based on our experience and not trash talk. Handling and cornering absolutely have improved tremendously.

For M3 Oem is 18" not 19"
For M5 Oem is 19" not 20"
And they are super car, the torque is super.
But our normal seden 528i , using the super wheel. What torque will be ?