Track forum general chit chat.

[reidetailing]

Car is stripped in prep for additional weight loss and roll cage.

Once completed, it will be going in an acid dip/bath to fully bring it to barebones.

[XCUSE_M3]

Is anyone interested in a ready to run car. Just need a kill switch and fire suppression install to run wheel to wheel. Cars is built and very competitive in TT3 and would be great in ST3.

[///Mac]

Originally Posted by danvitmon

For anyone wondering, stock muffler with a catless x pipe will pass 90db days. I did a 90db day at Laguna and didn't have any issues at all. X pipe was resonated but they're straight through.

Not the case for me. I have Paddoq catless x-pipe (maybe mine is not as resonated as yours...) and stock unmodified muffler and I blew sound @ 94db at Laguna last month. I had to lift for the rest of the day.

[sperkins]

Originally Posted by ///Mac

Not the case for me. I have Paddoq catless x-pipe (maybe mine is not as resonated as yours...) and stock unmodified muffler and I blew sound @ 94db at Laguna last month. I had to lift for the rest of the day.

Same here. Blew 95 on a 92 day. I have an MS intake as well, so there was some induction noise added in there. Keep in mind air temp, specifically in those cold Monterey mornings, will play a part with how the sound is picked up by the mic. In the future, I will only sign up for 100db plus days at Laguna.

[danvitmon]

Originally Posted by sperkins

Same here. Blew 95 on a 92 day. I have an MS intake as well, so there was some induction noise added in there. Keep in mind air temp, specifically in those cold Monterey mornings, will play a part with how the sound is picked up by the mic. In the future, I will only sign up for 100db plus days at Laguna.

That's so strange! I have an MS intake as well and would go track right every single time, sometimes staying on the curbing even by the sound station. Maybe the Valvetronic forward resonated setup is slightly quieter? Unsure. I posted a youtube video of my POV of the sessions so you can see what RPM I am at compared to yours. Weird!

[P1zzaboy]

Around here Tremblant is strictly enforced 92dB. I have not been ok with RPI Catless x-pipe + oem muffler, but have been fine since I swapped to catted AFE xpipe. Night and day difference, and still sounds nice when I put back my meisterchaft muffler

[omgzirra_exe]

the trick is to use NT01 and make tie fighter sounds that overwhelm your exhaust.

[jmeenach]

Finally upgraded my front lip from some ebay junk that the previous owner installed to the Ridgeline Motorsport GTS 5-piece lip that I shared a few weeks ago. Fitment required a little massaging, but honestly, it fits better than expected.

The bad news: this FRP lower tray is rather brittle for the use I have for this car and I already have a crack from barely grazing a speedbump in my parking garage that is unavoidable. The good news (I guess): They sell replacement parts and they offered me a discount on the replacement lower tray compared to what they would normally charge. The better news (hopefully): I'm working on scanning the lower tray with a friend that has a 3D printer that he has used for multiple motorsport aero parts so I can make something more robust. That'll take a few months before I have the time to complete that project, but that should help in the long run. Depending on cost, I may be able to create a few replacement pieces for others as well.

[IMG]M3-8-13-24 by Jaryd Meenach, on Flickr[/IMG]

[tsk94]

I posted over in the Suspension section for the Strom Upright thread, but figured I'd throw it in here as well.

Looking for some insight from those that installed the strom uprights on their car. How much less static negative camber are you guys running compared to before? I would typically run around -3.5* to -3.8* in my old car, but not sure where I should start with the uprights installed on the new car I'm building.

Any input would be appreciated

[Bimmer Barney]

Got to do some standing mile runway/airstrip runs this weekend. Running all seasons (so launch control was useless), I hit a top speed of 174.

Had a number of runs with my friend who has an F80 M3CS. Surprisingly I was hanging through 1-4 gears but 5-7 gears he would walk hard. His top speed was 185.

I got to drive his. The torque advantage is noticeable and it felt great. The E90 feels more visceral. Part of that is because it just is, but also it’s older and less refined. I daily my E90 and could see the F80 CS as a replacement some day.

[sperkins]

Originally Posted by Bimmer Barney

Got to do some standing mile runway/airstrip runs this weekend. Running all seasons (so launch control was useless), I hit a top speed of 174.

Had a number of runs with my friend who has an F80 M3CS. Surprisingly I was hanging through 1-4 gears but 5-7 gears he would walk hard. His top speed was 185.

I got to drive his. The torque advantage is noticeable and it felt great. The E90 feels more visceral. Part of that is because it just is, but also it’s older and less refined. I daily my E90 and could see the F80 CS as a replacement some day.

Sounds like a rush! I've always wanted to do something like that.
I'm sure you've seen the video of the guy on the Autobahn reaching high 190's in our cars--- that would be next level.

[Bimmer Barney]

[1FastSicilian]

hey fellas, finally doing my subframe and diff mounts soon so preparing to buy everything..

I dont want any diff whine... should I just go with solid subframe and refresh the OEM diff mounts?

car is DCT with 77k miles.. no issues with clunks or anything now, I just want to do the preventative stuff.

[omgzirra_exe]

Originally Posted by 1FastSicilian

hey fellas, finally doing my subframe and diff mounts soon so preparing to buy everything..

I dont want any diff whine... should I just go with solid subframe and refresh the OEM diff mounts?

car is DCT with 77k miles.. no issues with clunks or anything now, I just want to do the preventative stuff.

yeap.

solid sub frame with oem diff bushing is the recipe for a 'street' car

might as well address your rear suspension bushings if possible.

also buy all new hardware. some will say not needed.. so you can make that your choice. at least replace the diff mount bolt. that can break off.. randomly.

[RalliartRsX]

Originally Posted by 1FastSicilian

hey fellas, finally doing my subframe and diff mounts soon so preparing to buy everything..

I dont want any diff whine... should I just go with solid subframe and refresh the OEM diff mounts?

car is DCT with 77k miles.. no issues with clunks or anything now, I just want to do the preventative stuff.

The drivetrain needs some compliance. There's zero reason to solid mount the diff....or gearbox for that fact

Solid subframe, OEM or slightly harder durometer diff bushing to keep it both civilized and allow complaince

The oem diff bushing are actually really good for a dual duty car

[1FastSicilian]

Originally Posted by RalliartRsX

The drivetrain needs some compliance. There's zero reason to solid mount the diff....or gearbox for that fact

Solid subframe, OEM or slightly harder durometer diff bushing to keep it both civilized and allow complaince

The oem diff bushing are actually really good for a dual duty car

Thanks!

I'll end up doing solid and new OEM diff mounts.. I assume all 3 are the same mounts? Can anyone verify this?

[Redd]

Originally Posted by 1FastSicilian

Thanks!

I'll end up doing solid and new OEM diff mounts.. I assume all 3 are the same mounts? Can anyone verify this?

You mean the diff mounts? No - the two rear mounts are the same. The front mount is different.

[1FastSicilian]

Originally Posted by Redd

You mean the diff mounts? No - the two rear mounts are the same. The front mount is different.

Thanks, looking at FCP and they only offer the rear mounts...

I wonder how it would be if I did the 2 new rear oem mounts and front in PF purple.....

[Redd]

Originally Posted by 1FastSicilian

Thanks, looking at FCP and they only offer the rear mounts...

I wonder how it would be if I did the 2 new rear oem mounts and front in PF purple.....

Sorry I got it reversed. The two front ones are same, the rear one (foam) is different. Both are available on FCP.

Front (need 2x) - https://www.fcpeuro.com/products/bmw...ng-33312284019

Rear (need 1x) - https://www.fcpeuro.com/products/bmw...ng-33312283384

I've not seen any reviews about mixing the stock mounts with PU. However if I were to guess, I would say that the rear one is where diff whine comes from and that's probably why BMW used foam on that mount.

Good luck.

[mikerunt]

Anyone have experience with Blacksheep Motorsports in Austin?

I also posted on the f8x channel

[Estragon]

I'm a Bay Area transplant so have had access to some pretty good shops over the years. I checked out various shops in Austin when we arrived and ended up going with Mike at Blacksheep Motorsports. He's very knowledgeable and absolutely meticulous in his work, though he's not cheap. He also tracks an E90 M3, I believe.