01-17-2020, 09:55 AM | #69 | |
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Was informed that it made room, made things easier, lightened up the components to work with, etc.. Made it simpler.
Quote:
The install video they have is of an M4 (four doors). It's a bit different with just two doors. RSR also doesn't expect you to put the side bolsters of the back seats or the seat belt covers back in. I wanted to keep it as "stock" as I could. I think they expect you to put in the seat delete - I'm not paying a bunch of bucks for a piece of pressboard covered in Ozite. First thing was to cut a clearance notch so the top bolster attachment hole was accessible again. Cutting this plate where I did does absolutely NOTHING in damaging structure or strength. The tab just hangs over the lip that the seat belt attaches to and the mounting point for the down bars is the seat belt mount - you can see the hole at the back. Then I trimmed the seat belt covers: Stuck them back in, marked the bolsters and didn't quite take enough angle into account - both holes ended up being a tad biased outward so the fit left a small gap as seen in the pix below: RSR wants an X cut into the carpet where the legs of the main hoop mount. They just tucked the ends up against the legs and I thought it looked a tad unfinished. I went about it a bit differently (as usual...) and tried to make the fit "more better". My cut outs ended up being about 1/2" forward of where they needed to be but I was able to cheat it out and trim the pucks I pulled out and fit them into the gaps: Here are the gaps at the rear cage where it goes into the bolsters: Yes, that's a grinder slip. While cutting the clearance hole of course the cut off wheel caught and scraped the powder coating off of the bottom of the down bar. Crap happens. At least my consistency at missing is the same - just a quarter inch. If someone's going to take enough time to look in and state that I missed I'll just kick 'em in the shins and say "You go do it by yourself." ---- Yes, previous alignment was completely dorked. Looks like I need to go on a little solo breakfast run in the twisties and see how things feel now this morning.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
|
Appreciate
1
CrashFL137.50 |
01-18-2020, 10:19 AM | #71 |
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Thank you, thank you very much. (in my best Elvis, of course!)
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
Appreciate
0
|
01-19-2020, 08:47 AM | #73 |
Lieutenant Colonel
704
Rep 1,917
Posts |
The former. Not ideal, but aside from that they build a nice cage.
__________________
Matt
|
Appreciate
0
|
01-20-2020, 02:07 PM | #74 | |
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Quote:
Rear down bars bolt into the seat belt retractor mounts, using the OEM fasteners and the legs are held in with three nut/bolt/washer. You drill three holes in the floorboard for each leg - outer rear is not mounted. There are three or four 8mm head screws on the bottom of the car and five or six push pin retaining clips along the bottom edge of the belly pan just at the rear of the door - pull them and then pull down on the belly panel (discovered some swearing seems to help at times) and you can get to the location of the nuts. It's a tight fit but doable. They supply nice zinc coated Grade 8 hardware and large washers to spread the load over the floor. Only thing I'd change is going to a shorter bolt than they supply - about half an inch of thread is just sticking out and there for nothing more than threading over. As a rule, you only need 1.5 to 2 threads extending out of the nut.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
|
Appreciate
0
|
03-06-2020, 09:14 AM | #75 |
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Looking forward to tomorrow: Have an HPDE day at Arizona Motorsports Park (gonna be busy too - have two students, one's a friend who'll be driving my car. She's excited!).
I'm really excited to see how the new set of Ohlins and CORRECT camber & toe settings work. New rubber, new dampers, new settings - woo hoo! (: In the process of securing a Cobra Nogaro seat so I can take advantage of my harness. It doesn't work safely with the OEM seat.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
03-06-2020, 09:36 AM | #76 | |
Major
1576
Rep 1,049
Posts |
Quote:
Interesting thread, seems like a knowledgeable lot here. Only experience I have with the R888 is that they're LOUD on the dyno, almost louder than the exhaust of the car we had in the shop. Is it the same in the car? |
|
Appreciate
1
243Racing1447.50 |
03-06-2020, 09:41 AM | #77 | |
Banned
1448
Rep 1,414
Posts |
Quote:
|
|
Appreciate
0
|
03-06-2020, 04:33 PM | #78 | |
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Quote:
Regardless, it was WAY off. Yup - they are loud everywhere.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
|
Appreciate
1
Conissah1576.00 |
03-06-2020, 05:08 PM | #79 |
Lieutenant Colonel
2181
Rep 1,663
Posts |
Are you running spacers up front for extra clearance or do the Apex clear the Ohlins no issue? I'm considering Ohlins (had them on my M3), but JRZ RSOne's are effectively the same price with camber plates which definitely don't have clearance issues.
|
Appreciate
0
|
03-07-2020, 06:53 AM | #80 | |
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Quote:
No rubbing anywhere.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
|
Appreciate
0
|
03-07-2020, 09:19 AM | #81 | ||
Colonel
2428
Rep 2,526
Posts |
Quote:
I have a set of tc kline plates with the oem strut adapter on them, so I was curious if the ohlins would mount up. Thanks. |
||
Appreciate
0
|
03-07-2020, 04:46 PM | #82 |
Lieutenant Colonel
2181
Rep 1,663
Posts |
|
Appreciate
0
|
03-07-2020, 10:51 PM | #83 |
Major
1103
Rep 1,263
Posts
Drives: 20 BMW M2C 17 Mazda MX-5 RF
Join Date: Oct 2006
Location: "Get Busy Living, or Get busy Dying"
|
What is your rear seat still doing in the car with that cage? You will drop 60lbs taking it out...
__________________
2005-2006 BMWCCA Boston Chapter president
2004 Mazda Rev It Up Finalist 2002-Present HPDE Instructor My 2020M2C Build: https://f87.bimmerpost.com/forums/sh....php?t=1696726 |
Appreciate
0
|
03-08-2020, 11:14 AM | #84 | |||
Dirt Junkie
116
Rep 76
Posts
Drives: 2020 BMW M2 Competition
Join Date: Aug 2019
Location: North Scottsdale, Arizona
|
Quote:
Quote:
1.9 camber, toe in - 1 degree. Yes, Toyo R888R sneakers. The springs came with the Ohilns. I kept a pretty close eye on temps across the tire's face (Longacre gauge with pyro temp sensor - http://www.longacreracing.com/produc...auge-0-100-psi) and was pleased with the consistency of the measured temps (140ish outer to 155ish inner tread temps up front, 150-155 rear). Quote:
First, I wanted to keep the back interior of the car for aesthetics. That'll probably change as I move onward with the car. It's only 6 months old with 3100 miles (of which around a third are track) so I'm not quite ready to start yanking out and shelving stuff. I know I can loose quite a bit of weight removing it but I don't care to spend close to 2K for a sheet of press board covered in Ozite for the "back seat delete". I'm capable of doing the seat delete on my own, just don't have the time/desire to spend on it right now - that's all taken up with my present (5 year long) project in the pic below. Once it's done I'll probably direct more attention to the M2. ------------------- New suspension - Thoughts and observations. With the stock suspension, coming out of turn 8 and into 9 at AMP there are chatter bumps and it's slightly off camber. The back end was twitchy, skittish and never felt planted at all. I had a student with an M4 that has adjustable ride suspension (guessing magnetically controlled - I'm not up on BMW's technology - still new to it) and it was silky smooth over the section and felt very compliant and planted. My car, with the Ohlins now, feels the same way. It was stuck down, planted and put the power down w/o getting all skittish. Cornering seems much better too - more confidence going into them and less understeer unless pushed. The balance is better. I can stick/slip either end as desired with a little pedal dancing (left foot braking helps SO much in being able to overlap inputs for chassis balancing). Back end seems much more planted too - still seems like I get oversteer pretty badly on throttle & exit but that's all controllable with my right ankle. Do have to admit that the four wheel drift at 80+ out of a couple of the corners at AMP are a lot of fun. I'm impressed with just how controllable the M2 is even when the tail is out wagging in the breeze like a happy puppy. Overall I'm VERY pleased with what I've done to the car for the track. I do have one complaint/desire to change: My brakes are great, no issues (Pagid yellows), would just like something a tad more "personalized". They stop well, have good modulation, blah, blah. What I'd like, though, is a bit more pedal meaning I wish it would stiffen up sooner in the throw and have a more solid feeling. The pedal has a soft zone when initially stepping on it and then once it gets into the braking area of it's throw, it's on the softer side with a tad more travel than I'd like. Gives me a mushy feeling with less modulation feel than I'd like. I'd prefer a slightly stiffer pedal with less throw - What'd I'd do in my off road stuff to solve this would be to up the piston size in the master cylinder and change the ratio between the pedal and the pucks along with adjust the pedal throw and where it enters the brake pressure zone.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming 'WOW-What a Ride!'" - Anonymous
|
|||
Appreciate
0
|
03-08-2020, 11:19 AM | #85 |
Colonel
2428
Rep 2,526
Posts |
The rear seat weighs 60lbs? Pulled mine out when doing some wiring and it didn't seem that heavy. Maybe 25lbs? Dunno, maybe I'm just super buff. (definitely not)
|
Appreciate
0
|
03-08-2020, 12:37 PM | #86 | ||
Brigadier General
4016
Rep 3,539
Posts
Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA
|
Quote:
Quote:
__________________
-328d Wagon Build Log (with helpful reference links)
-My YouTube Channel for some of the best DIYs and in depth information Please don't PM me for suspension recommendations unless interested in paid private consultations. |
||
Appreciate
0
|
03-08-2020, 12:45 PM | #87 |
Brigadier General
4016
Rep 3,539
Posts
Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA
|
Ohlins use the OE top mounts (front and rear). They come with an adapter that sits against the OE top mount thrust bearing that necks down the spring size (IIRC they use 65mm springs).
__________________
-328d Wagon Build Log (with helpful reference links)
-My YouTube Channel for some of the best DIYs and in depth information Please don't PM me for suspension recommendations unless interested in paid private consultations. |
Appreciate
0
|
03-08-2020, 12:58 PM | #88 | |
Colonel
2428
Rep 2,526
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|