Track forum general chit chat.

[Bimmer Barney]

Heading to Laguna Seca on February 12 with speed district hope to see some of you guys out there

[StripclubDJ]

Originally Posted by Bimmer Barney

Heading to Laguna Seca on February 12 with speed district hope to see some of you guys out there

What DB is it?

[derbo]

I'm signed up for 2/5 sonoma raceway with SpeedSF.

[derbo]

Originally Posted by StripclubDJ

What DB is it?

Looks like 105dB

https://speeddistrict.com/2022-schedule/

[turbo_joe]

Someone was talking about doing monoball front control arms, I just posted mine up for sale
https://www.m3post.com/forums/showth...6#post28407386

[k_mann]

Holy crap how do you guys get the drive shaft off the diff? I can't hardly get it to move. Tried dropping the diff and subframe together and it's still only came out a couple mm

[Davisca455]

Originally Posted by aututto

Holy crap how do you guys get the drive shaft off the diff? I can't hardly get it to move. Tried dropping the diff and subframe together and it's still only came out a couple mm

Ya, mine was a really tight fit.
I sprayed some penetrating oil at the joint, then was able to pry it apart at the two little slots.
Just a little movement at a time, back and forth, back and forth.

[k_mann]

Originally Posted by Davisca455

Ya, mine was a really tight fit.
I sprayed some penetrating oil at the joint, then was able to pry it apart at the two little slots.
Just a little movement at a time, back and forth, back and forth.

Thanks a ton! I guess I just need some reassurance. It's out now!

[stefan_e36]

Hi, I would like to ask, if anybody use racing simulator for training?
as for me I use it , because of the winter))

[derbo]

Originally Posted by stefan_e36

Hi, I would like to ask, if anybody use racing simulator for training?
as for me I use it , because of the winter))

My wife and I recently bought pieces for a sim rig earlier this year. I like to think it helped a lot.

https://speedsecrets.com/q-whats-the...ce-sim-racing/

This was posted a few days ago about how to maximize your sim practice. I thought it was a good read.

[k_mann]

Ok new question. I was able to get the rear subframe bushings out with ease. But there is like no lip to the front ones. What you you guys use to stabilize when pressing in?

[Davisca455]

Originally Posted by aututto

Ok new question. I was able to get the rear subframe bushings out with ease. But there is like no lip to the front ones. What you you guys use to stabilize when pressing in?

I cracked off the lip from the stock bushings using a cold chisel and pliers.
Then I used what's called a "stripper" to support the frame around the bushing bore.
The stripper is anything that has a hole just a fraction larger diameter than the bore in the frame.
(The 3rd photo shows the large aluminum stripper underneath the subframe with its hole aligned with the bore in the subframe)

For removal, I used a custom pusher to push only the outer metal lip of the OEM bushing, while the stripper supports the frame underneath (top 3 photos).


I also used the stripper for installation of the solid bushings (bottom photo).

More detailed info on how I did the solid install in this link…

https://www.bimmerpost.com/forums/sh...php?p=27648714

[stefan_e36]

Originally Posted by derbo

My wife and I recently bought pieces for a sim rig earlier this year. I like to think it helped a lot.

https://speedsecrets.com/q-whats-the...ce-sim-racing/

This was posted a few days ago about how to maximize your sim practice. I thought it was a good read.

Thanks, I’ll read this

[k_mann]

Originally Posted by Davisca455

I cracked off the lip from the stock bushings using a cold chisel and pliers.
Then I used what's called a "stripper" to support the frame around the bushing bore.
The stripper is anything that has a hole just a fraction larger diameter than the bore in the frame.
(The bottom photo shows the large aluminum stripper underneath the subframe with its hole aligned with the bore in the subframe)

For removal, I used a custom pusher to push only the outer metal lip of the OEM bushing, while the stripper supports the frame underneath.


I also used the stripper for installation of the solid bushings.

Oh boy. It's looking a lot more like I'm going to take it to a shop to have them pressed in LOL

[Bimmer Barney]

What was the original game plan if not pressing in the new bushings??

[k_mann]

Originally Posted by Bimmer Barney

What was the original game plan if not pressing in the new bushings??

Original game plan was have my shop do everything. But I'm bored and it's winter so figured I'd tackle it myself and get some tools in the process. I actually think pressing in won't be as bad. I'm struggling to catch that lip to press them out. Which won't matter so much when pressing.

I'm thinking of taking a hole saw to some 4x4 to maybe brace it a little more

[Davisca455]

Originally Posted by aututto

Original game plan was have my shop do everything. But I'm bored and it's winter so figured I'd tackle it myself and get some tools in the process. I actually think pressing in won't be as bad. I'm struggling to catch that lip to press them out. Which won't matter so much when pressing.

I'm thinking of taking a hole saw to some 4x4 to maybe brace it a little more

Transmission shops, rear end shops, most machine shops will have a hydraulic press, just look for something like that in your area.
You could even print out my sketch for the pushers and share it with them, they may already have something close.

Also, let them know to get a well fitting (.875" ish) spacer to place between the top and bottom halves of each pair of bushing bores…don't want those to flex and cause misalignment when pressing in the bushings.

[k_mann]

Originally Posted by Davisca455

Transmission shops, rear end shops, most machine shops will have a hydraulic press, just look for something like that in your area.
You could even print out my sketch for the pushers and share it with them, they may already have something close.

Also, let them know to get a well fitting (.875" ish) spacer to place between the top and bottom halves of each pair of bushing bores…don't want those to flex and cause misalignment when pressing in the bushings.

Nice thank you! Curious what lube did you use for the bushings? Also was the spacing a bit different on the rears? I pushed both out and noticed one was a little wider than the other. Could just be due to the uneven cuts on the reliefs

[Davisca455]

Originally Posted by aututto

Nice thank you! Curious what lube did you use for the bushings? Also was the spacing a bit different on the rears? I pushed both out and noticed one was a little wider than the other. Could just be due to the uneven cuts on the reliefs

I used a thin coat of Valvoline EP grease, but anything should be fine.
Mine went in with very little force (2-1/2 tons?), so maybe even dry would work without issue?

(After the flange on the bushing touched down, I "seated" them by ramping up the pressure to 4 tons. Anything higher, I was afraid of crushing the frame.
Your pressures could vary, depending on bushing sizes, spacer fitment, hydraulic press and alignment differences.)

The gaps on each side of my frame were slightly different, so I made one for each side.
But if I recall correctly, the difference was only like .020", so probably wasn't necessary to make two?
But that could also be why mine installed with very little force?

[k_mann]

Home Depot plumbing did the trick! They're out now!

[fanatic1]

Originally Posted by kyippee

I'm impressed - I gave my friend the keys to my car and in 9 minutes he beat my dry PB. It was his first time driving an E92 M3. I even gave him mismatched brake pads on the front axle, but I couldn't stop him Ran a 1:39.00 even when turn 3 had a stream of water that would cause understeer then oversteer. He thinks there's 1.37.xx in the current setup if we could get a dry day and give him a few more minutes of driving time with it..

Track was damp at this point, it was raining the night before and intermittent throughout the day!

1:39.00 lap only:

Full session:

Your friend the same one that runs fast sideways?

Nice laps!

[kyippee]

Yup same person