[bateau]

Originally Posted by Bee Pee

Yes no problem to unbolt the forward rear subframe bolts provided weight is still on the wheels.

Just to clarify, for F30 sedan, are we talking about total of the following parts:

1 x Genuine BMW Connecting Support - 33312284647
6 x Genuine BMW Star-Socket Screw - 07119907189
1 x Genuine BMW Tension Strut – 33316797444
1 x Genuine BMW Push Rod Left – 33326793651
1 x Genuine BMW Push Rod Right – 33326793652
2 x Genuine BMW Torx Bolt – 33306861221

Total is $188.36 from getbwmparts.com.

BeePee you have both F80 plate and V-brace - how much harsher is the ride on bumpy roads?

[Bee Pee]

Originally Posted by bateau

Just to clarify, for F30 sedan, are we talking about total of the following parts:

1 x Genuine BMW Connecting Support - 33312284647
6 x Genuine BMW Star-Socket Screw - 07119907189
1 x Genuine BMW Tension Strut – 33316797444
1 x Genuine BMW Push Rod Left – 33326793651
1 x Genuine BMW Push Rod Right – 33326793652
2 x Genuine BMW Torx Bolt – 33306861221

Total is $188.36 from getbwmparts.com.

BeePee you have both F80 plate and V-brace - how much harsher is the ride on bumpy roads?

Ride is better and nvh is less as body is flexing less

[kevinjt]

Originally Posted by bateau

Just to clarify, for F30 sedan, are we talking about total of the following parts:

1 x Genuine BMW Connecting Support - 33312284647
6 x Genuine BMW Star-Socket Screw - 07119907189
1 x Genuine BMW Tension Strut – 33316797444
1 x Genuine BMW Push Rod Left – 33326793651
1 x Genuine BMW Push Rod Right – 33326793652
2 x Genuine BMW Torx Bolt – 33306861221

Total is $188.36 from getbwmparts.com.

BeePee you have both F80 plate and V-brace - how much harsher is the ride on bumpy roads?

Exactly what I bought!. (For my F30)

[natesi]

We have someone in comment 68 saying the F32 brace creates more harshness and someone in comment 90 saying less harshness.

Has anyone else installed the F32 brace in their F30 and would like to chime in on their experience?

[Lancelot]

I have, and to be honest doesn't make a significant difference for me;

But my feedback is affected by two considerations:
1: i have the f80 plate on top of that, and i had the f80 plate only before that.

2: having stiffer anti roll bars installed, more subtle effects from braces are probably less noticeable.

[AG23]

Anyone try one of these reinforcement plates on an F36 gran coupe with x-drive? Any noticeable difference?
Does this help at all with steering feel or moreso with body roll?

[Dog Face Pony Soldier]

Originally Posted by ajg.esq

Anyone try one of these reinforcement plates on an F36 gran coupe with x-drive? Any noticeable difference?
Does this help at all with steering feel or moreso with body roll?

No X-Drive here but I do have chassis reinforcements installed. The benefits are for the most part, neither of what you mention. The main benefit is stability during cornering. A great example would be a hitting bumps during sustained cornering. The stiffer chassis will enable the car to hold its line better in these situations.

[AG23]

Originally Posted by glennQNYC

No X-Drive here but I do have chassis reinforcements installed. The benefits are for the most part, neither of what you mention. The main benefit is stability during cornering. A great example would be a hitting bumps during sustained cornering. The stiffer chassis will enable the car to hold its line better in these situations.

Thank you for the clarification. Sounds good.

[EvenKeel]

Anyone who says they can feel a difference after installing this plate should give up their day job and become an F1 development driver.

[ATs335Xi]

Originally Posted by bateau

Just to clarify, for F30 sedan, are we talking about total of the following parts:

1 x Genuine BMW Connecting Support - 33312284647
6 x Genuine BMW Star-Socket Screw - 07119907189
1 x Genuine BMW Tension Strut – 33316797444
1 x Genuine BMW Push Rod Left – 33326793651
1 x Genuine BMW Push Rod Right – 33326793652
2 x Genuine BMW Torx Bolt – 33306861221

Total is $188.36 from getbwmparts.com.

BeePee you have both F80 plate and V-brace - how much harsher is the ride on bumpy roads?

Not the first $188 I would spend on upgrades, but not a lot of risk for the marginal improvement. I have KW Street Comforts and Dinan sway bars going in this week. The additional bracing is definitely on the list for the future.

[FaRKle!]

Originally Posted by Smee

What torque do I tighten then up to?

The CPM instructions say 30 Nm (22 ft-lbs).

That said, I checked the break torque of the stock bolts on my F31 and they were around 10ft-lbs.

I ended up torquing the bolts to 30Nm after installing the F80 plate.

[sspade]

Originally Posted by FaRKle!

The CPM instructions say 30 Nm (22 ft-lbs).

That said, I checked the break torque of the stock bolts on my F31 and they were around 10ft-lbs.

I ended up torquing the bolts to 30Nm after installing the F80 plate.

Which part number did you buy?

[1QuikWS6]

Originally Posted by sspade

Which part number did you buy?

I wouldn't even bother with the CPM plate as the OEM plate is $20 max (I paid $15 for mine) - OEM plate is more than adequate...

[sspade]

Originally Posted by 1QuikWS6

I wouldn't even bother with the CPM plate as the OEM plate is $20 max (I paid $15 for mine) - OEM plate is more than adequate...

I agree... so we can confirm that the F80 plate is a direct bolt on to the F30 chassis?

Can someone confirm 33312284647 is the correct part number?

[sspade]

Originally Posted by 1QuikWS6

I wouldn't even bother with the CPM plate as the OEM plate is $20 max (I paid $15 for mine) - OEM plate is more than adequate...

Where did you get your OEM plate/brace for $15?

Any chance you have the part number?

[henkinc]

I have a stock suspension 335Xi (with Dinan engine mods) and don't know if the rear stiffener would by itself substantially benefit my car. Does it require a new exhaust hanger? And what/where is the V brace? Is V brace stock on my car? Also, some of you have OEM part numbers. Does BMW sell this rear plate as an option? Some pictures for a 335 Xi might help me.

I plan at some point to buy Dinan shockware which modifies the OEM shock settings to stiffer in both comfort and sport modes. I might also get Dinan springs and bump stops. And the Run Flats will go away! But I only drive street. No racing.

Thanks for thoughts.

[anom3]

Old topic revival time! I am about a week or two out from DIYing this. Slight novice here, but I'm not stupid and this looks like a very easy install.

a) Can this be done on ramps? When the car is sitting on its wheels do the push rods (left / right) bare any weight?

b) Anyone know the torque for the bolts that go through the push rod and the large bushing?

Thanks!

[FaRKle!]

Originally Posted by anom3

Old topic revival time! I am about a week or two out from DIYing this. Slight novice here, but I'm not stupid and this looks like a very easy install.

a) Can this be done on ramps? When the car is sitting on its wheels do the push rods (left / right) bare any weight?

b) Anyone know the torque for the bolts that go through the push rod and the large bushing?

Thanks!

Yes it can be done on ramps (that's how I did mine way back). The torque spec for the bolts that secure the plate to the body is 24Nm. The torque spec for the other end of the braces at the subframe bushing area is 100Nm (+90deg if using new bolts) but you don't need to undo those to slide the reinforcement plate in.

[anom3]

thanks for reaching out.

im talking about the v brace mainly. my 2012 prod 335 didnt come with the v brace in there at all.

so i need to replace the two carriers that sit on top of the 2 front rear axel bushings as well.

i figured the plate is an easy install on ramps, but i am talking about releasing the bushing bolts while the car is on its wheels. one at a time, but still...

torque spec i found... bmw lists the bolt that goes through the rear axel bushings at 108 nm. at least for my vin.

ps : by carrier i mean : https://static.schmiedmann.dk/Produc...367598_big.jpg

Originally Posted by FaRKle!

Yes it can be done on ramps (that's how I did mine way back). The torque spec for the bolts that secure the plate to the body is 24Nm. The torque spec for the other end of the braces at the subframe bushing area is 100Nm (+90deg if using new bolts) but you don't need to undo those to slide the reinforcement plate in.

[mixmastermike]

Originally Posted by anom3

thanks for reaching out.

im talking about the v brace mainly. my 2012 prod 335 didnt come with the v brace in there at all.

so i need to replace the two carriers that sit on top of the 2 front rear axel bushings as well.

i figured the plate is an easy install on ramps, but i am talking about releasing the bushing bolts while the car is on its wheels. one at a time, but still...

torque spec i found... bmw lists the bolt that goes through the rear axel bushings at 108 nm. at least for my vin.

ps : by carrier i mean : https://static.schmiedmann.dk/Produc...367598_big.jpg

Really interested to hear your thoughts once you get this installed.

I'm running B8's with F80 Springs (MA/MR) H&R front sway bar and BMW 15mm rear. Adjustable end links and SPL bump steer/tie rod ends.

One of the best decisions I made was to switch to a 245/40/18 set up

[TheUnicorn340]

For people who've done this, would you be kind enough to drop all of torque specs for this install on f30? I saw @[FaRKle!]'s specs, however I think they're still a few missing? Hard to keep track. Thanks!

[henkinc]

I know it isn't a strut in the rear ...the one I added in the front - a true strut bar-- helped somewhat. I would imagine a rear reinforcement bar would reduce understeer, if have any effect.
Thanks.
Charlie