Robbing the F8x M3 M4 for suspension parts

jbiswurm · 10-16-2020, 05:05 PM

Quote:

Originally Posted by Polo08816

Quote:

Originally Posted by jbiswurm

I have to disagree a little from my experience. I do get a bit more nvh through the steering wheel at speeds over 80mph. Performance and tracking are no affected at all but there is definitely an nvh consequence in my car. Thats said i dont regret the mod at all. After solid rear subfeame bushings, these are still my favorite mod. Steering feel is vastly improved. If youre not sensitive to a little nvh do it and never look back. If you are, then dont do it and look at the camber correction hub solution.

Are you on run flat tires or non run flat tires?

My front suspension modifications are:

F80 LCA
F80 Thurst Arms
Wheel hub/carriers for an additional -.5 degrees of camber
M Performance suspension kit
square 255/40/18 MPS4S previously and now Conti ExtremeContact Sport

I don't feel like NVH has increased that much from the F80 parts alone.

Hmmmmm.... i am on f80 lca and ts with spacers, mp4s 245/255 and mperformance suspension.

Delrin subframe bushings and wavetrac in the back

oksymoroni · 10-17-2020, 07:03 PM

Quote:

Originally Posted by itsrichierich

So for the F30 RWD guys, both the F80 M3 LCA and TS were swapped? Swapping the bushing will prevent the need of spacers?

Im not sure if this answers your question but I took my front spacers off when I installed the M3 LCAs and TSs. I only run spacers in the rear now. Fronts were poking too much with spacers, LCAs, and TSs

jbiswurm · 10-30-2020, 08:48 AM

Quote:

Originally Posted by jbiswurm

Quote:

Originally Posted by Polo08816

Quote:

Originally Posted by jbiswurm

I have to disagree a little from my experience. I do get a bit more nvh through the steering wheel at speeds over 80mph. Performance and tracking are no affected at all but there is definitely an nvh consequence in my car. Thats said i dont regret the mod at all. After solid rear subfeame bushings, these are still my favorite mod. Steering feel is vastly improved. If youre not sensitive to a little nvh do it and never look back. If you are, then dont do it and look at the camber correction hub solution.

Are you on run flat tires or non run flat tires?

My front suspension modifications are:

F80 LCA
F80 Thurst Arms
Wheel hub/carriers for an additional -.5 degrees of camber
M Performance suspension kit
square 255/40/18 MPS4S previously and now Conti ExtremeContact Sport

I don't feel like NVH has increased that much from the F80 parts alone.

Hmmmmm.... i am on f80 lca and ts with spacers, mp4s 245/255 and mperformance suspension.

Delrin subframe bushings and wavetrac in the back

To feedback on this. I just did diff bushing and replaced with turner delrin/aluminum and the vibration and streering wheel shake is gone.

So, clearly its not from the TS!

itsrichierich · 11-03-2020, 04:09 PM

Has anyone tried just installing the thrust arm to adjust the caster?

For some reason I got really positive caster on my F30 after lowering it on Bilstein PSS10 and using KMACs adjustable bushing for the lower arms. Try to stay away from camber plates.

BWbimmer · 11-03-2020, 04:33 PM

Quote:

Originally Posted by jbiswurm

I have to disagree a little from my experience. I do get a bit more nvh through the steering wheel at speeds over 80mph. Performance and tracking are no affected at all but there is definitely an nvh consequence in my car. Thats said i dont regret the mod at all. After solid rear subfeame bushings, these are still my favorite mod. Steering feel is vastly improved. If youre not sensitive to a little nvh do it and never look back. If you are, then dont do it and look at the camber correction hub solution.

Thanks for your elaboration.
Are you driving staggered wheels?

Lancelot · 11-03-2020, 04:43 PM

Quote:

Originally Posted by itsrichierich

Has anyone tried just installing the thrust arm to adjust the caster?

For some reason I got really positive caster on my F30 after lowering it on Bilstein PSS10 and using KMACs adjustable bushing for the lower arms. Try to stay away from camber plates.

I have, zero change; tyre kept rubbing.

I removed the arms altogether, put millway street camber plates instead.

FaRKle! · 11-03-2020, 05:01 PM

Quote:

Originally Posted by itsrichierich

Has anyone tried just installing the thrust arm to adjust the caster?

For some reason I got really positive caster on my F30 after lowering it on Bilstein PSS10 and using KMACs adjustable bushing for the lower arms. Try to stay away from camber plates.

As you lengthen the LCA the caster increases. This increases the steering weight a bit, which is nice, but if you go greater than 8deg I've seen rubbing.

KMAC makes a tension strut monoball that allows you to adjust caster and move it back.

jbiswurm · 11-03-2020, 06:05 PM

Quote:

Originally Posted by BWbimmer

Quote:

Originally Posted by jbiswurm

I have to disagree a little from my experience. I do get a bit more nvh through the steering wheel at speeds over 80mph. Performance and tracking are no affected at all but there is definitely an nvh consequence in my car. Thats said i dont regret the mod at all. After solid rear subfeame bushings, these are still my favorite mod. Steering feel is vastly improved. If youre not sensitive to a little nvh do it and never look back. If you are, then dont do it and look at the camber correction hub solution.

Thanks for your elaboration.
Are you driving staggered wheels?

Yes, 245 on 8 in wheels il feont and 255 on 8.5 rear

BWbimmer · 11-04-2020, 11:00 AM

Quote:

Originally Posted by jbiswurm

Yes, 245 on 8 in wheels il feont and 255 on 8.5 rear

Then I am not worried :-) With my standard 225 the effect will only be half as bad :-)

itsrichierich · 11-08-2020, 06:11 PM

I have a brand new set of F80 M3 upper and lower control arms if anyone is interested.

Munchi435i · 11-19-2020, 08:20 PM

Quote:

Originally Posted by itsrichierich

I have a brand new set of F80 M3 upper and lower control arms if anyone is interested.

Pm sent

Freakystein · 01-22-2021, 02:43 AM

It seems like this F80 LCA & TS does have a lot of different feedback, some are perfectly fine with it, but some are not. I did the LCA only and i do love the streering feel now but i do have rubbing issues on the left wheels, the right is totally fine. Anybody faces this kind of issue? I have order a pair of TSs to go with it and see will it correct the caster issue.

BWbimmer · 01-22-2021, 03:57 AM

Quote:

Originally Posted by Freakystein

It seems like this F80 LCA & TS does have a lot of different feedback, some are perfectly fine with it, but some are not. I did the LCA only and i do love the streering feel now but i do have rubbing issues on the left wheels, the right is totally fine. Anybody faces this kind of issue? I have order a pair of TSs to go with it and see will it correct the caster issue.

Sorry but we need more details.

Wheel and tire size, and where doese the wheel touch? Fender liner or wing?

Lancelot · 01-22-2021, 04:07 AM

Quote:

Originally Posted by Freakystein

It seems like this F80 LCA & TS does have a lot of different feedback, some are perfectly fine with it, but some are not. I did the LCA only and i do love the streering feel now but i do have rubbing issues on the left wheels, the right is totally fine. Anybody faces this kind of issue? I have order a pair of TSs to go with it and see will it correct the caster issue.

Yes same here except rubbing on the right side

Tension strut is a waste of time not going to change anything

Freakystein · 01-23-2021, 12:27 AM

Well, mine is rubbing on the left side, but my tires are slightly oversize at 235/35R20 on the fronts. Anyway, I've gotten a pair of TS which have yet to be install, will install that and see how it goes. I do have ohlins n millway camber plates, but still wanna have a f80 arms as it does give a lot better feedback on the front end, the car feels a lot nicer to drive. Btw for the spacers use, I've seen ppl mentioning using 2mil & 15mil, should we use alloy or steel spacers in this case?

Freakystein · 01-23-2021, 02:01 AM

Quote:

Originally Posted by BWbimmer

Sorry but we need more details.

Wheel and tire size, and where doese the wheel touch? Fender liner or wing?

Mine are 235/35R20, rub us on the fender liner..

YR430D · 03-07-2021, 04:22 PM

I have bought the Lemforder LCA and TS as well as the spacers and the headlight rod. I’m having second thoughts if to go ahead because of the following:

I run 19” M4 wheels with 255/35/19 front tyres - car is lowered in Bilstein dampers and Eibach springs. There is no tyre rubbing at the moment. Will this mod cause my tyres to run? Anyone done the mod with my wheel and tyres setup?

Secondly having less thread on the tie rod arm is a concern, is the F8x rod longer? If so would this fit and get around the issue of less thread in the tie rod end?

nyc_dude · 03-27-2021, 05:06 PM

Quote:

Originally Posted by milthorst

Has anybody counted turns on the tie rods or measured the change in length? This would be a great help to make a rough setting before driving to the alignment shop. BTW, I plan to stay with the stock 8x18 wheels, so I don't anticipate any rubbing problems.

3 turns out on the tie rods according to a proshop in SoCal, before the wheel alignment after installing the M3/M4 LCA/TS upgrade kit.

Cheers

nyc_dude · 03-27-2021, 05:09 PM

Quote:

Originally Posted by YR430D

I have bought the Lemforder LCA and TS as well as the spacers and the headlight rod. I’m having second thoughts if to go ahead because of the following:

I run 19” M4 wheels with 255/35/19 front tyres - car is lowered in Bilstein dampers and Eibach springs. There is no tyre rubbing at the moment. Will this mod cause my tyres to run? Anyone done the mod with my wheel and tyres setup?

Secondly having less thread on the tie rod arm is a concern, is the F8x rod longer? If so would this fit and get around the issue of less thread in the tie rod end?

You might want to install monoball inserts (Turner Motorsports), instead of the M3/M4 LCA/TS kit. Monoball inserts won't change your existing geometry.

Cheers

Pussiwillow · 03-27-2021, 08:05 PM

I see people say m3 TS doesn't correct the caster much; some say it does, I don't mind extra castor, I just don't want to rub, anyone know with just m3 arms, If my 403m 19's with 245 would rub, lower on ST-XA not dumped

Astute · 05-13-2021, 02:05 PM

So I'm interested in doing something regarding the LCA/TS for my F30. I'm running F80 ZCP springs in rear and Eibach front springs with F80 ZCP bumpstops. I'm also running 437m with a 245/35/19 in front and 275/30/19 in rear. I daily my 340i but love a good mountain run.

I wondered if the F80 LCA/TS would be a good setup for me, but I'm also seeing that it might need a spacer, which wouldn't be good because the 437m already sits pretty flush. I also saw reviews that the Turner monoball solution isn't great for a daily. I'd love to hear any feedback on what you guys think would be the best setup to pursue.

nmccord30 · 07-01-2021, 08:57 PM

Quote:

Originally Posted by itsrichierich

I have a brand new set of F80 M3 upper and lower control arms if anyone is interested.

Do you still have these if so how much

11-03-2020, 04:09 PM	#224
itsrichierich Moto Lover 187 Rep 591 Posts Drives: '19 BMW S1000XR Join Date: Jun 2020 Location: San Diego, CA Instagram - @itsrichierich23 iTrader: (0)	Has anyone tried just installing the thrust arm to adjust the caster? For some reason I got really positive caster on my F30 after lowering it on Bilstein PSS10 and using KMACs adjustable bushing for the lower arms. Try to stay away from camber plates.
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11-08-2020, 06:11 PM	#230
itsrichierich Moto Lover 187 Rep 591 Posts Drives: '19 BMW S1000XR Join Date: Jun 2020 Location: San Diego, CA Instagram - @itsrichierich23 iTrader: (0)	I have a brand new set of F80 M3 upper and lower control arms if anyone is interested.
	Appreciate 0 Quote

01-22-2021, 02:43 AM	#232
Freakystein Enlisted Member 17 Rep 35 Posts Drives: F30 335i Join Date: Jun 2020 Location: Malaysia iTrader: (0)	It seems like this F80 LCA & TS does have a lot of different feedback, some are perfectly fine with it, but some are not. I did the LCA only and i do love the streering feel now but i do have rubbing issues on the left wheels, the right is totally fine. Anybody faces this kind of issue? I have order a pair of TSs to go with it and see will it correct the caster issue.
	Appreciate 0 Quote

01-23-2021, 12:27 AM	#235
Freakystein Enlisted Member 17 Rep 35 Posts Drives: F30 335i Join Date: Jun 2020 Location: Malaysia iTrader: (0)	Well, mine is rubbing on the left side, but my tires are slightly oversize at 235/35R20 on the fronts. Anyway, I've gotten a pair of TS which have yet to be install, will install that and see how it goes. I do have ohlins n millway camber plates, but still wanna have a f80 arms as it does give a lot better feedback on the front end, the car feels a lot nicer to drive. Btw for the spacers use, I've seen ppl mentioning using 2mil & 15mil, should we use alloy or steel spacers in this case?
	Appreciate 0 Quote

03-07-2021, 04:22 PM	#237
YR430D Second Lieutenant 46 Rep 203 Posts Drives: BMW 430D Join Date: Oct 2017 Location: UK iTrader: (0)	I have bought the Lemforder LCA and TS as well as the spacers and the headlight rod. I’m having second thoughts if to go ahead because of the following: I run 19” M4 wheels with 255/35/19 front tyres - car is lowered in Bilstein dampers and Eibach springs. There is no tyre rubbing at the moment. Will this mod cause my tyres to run? Anyone done the mod with my wheel and tyres setup? Secondly having less thread on the tie rod arm is a concern, is the F8x rod longer? If so would this fit and get around the issue of less thread in the tie rod end?
	Appreciate 0 Quote

03-27-2021, 08:05 PM	#240
Pussiwillow Major 521 Rep 1,148 Posts Drives: Alpine white 2014 335i msport Join Date: Aug 2020 Location: Arizona iTrader: (2)	I see people say m3 TS doesn't correct the caster much; some say it does, I don't mind extra castor, I just don't want to rub, anyone know with just m3 arms, If my 403m 19's with 245 would rub, lower on ST-XA not dumped
	Appreciate 0 Quote

05-13-2021, 02:05 PM	#241
Astute PsyD 102 Rep 156 Posts Drives: 2016 340i M-sport Join Date: Feb 2019 Location: Atlanta, GA iTrader: (2) Garage List 2016 BMW 340i F30 [0.00]	So I'm interested in doing something regarding the LCA/TS for my F30. I'm running F80 ZCP springs in rear and Eibach front springs with F80 ZCP bumpstops. I'm also running 437m with a 245/35/19 in front and 275/30/19 in rear. I daily my 340i but love a good mountain run. I wondered if the F80 LCA/TS would be a good setup for me, but I'm also seeing that it might need a spacer, which wouldn't be good because the 437m already sits pretty flush. I also saw reviews that the Turner monoball solution isn't great for a daily. I'd love to hear any feedback on what you guys think would be the best setup to pursue.
	Appreciate 0 Quote