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      09-02-2015, 06:20 PM   #89
tlav17
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that's badass!
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      10-16-2015, 12:24 PM   #90
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Some food for thought-

My current toyo proxes rears are showing some severe wear and I will most likely replace them this winter when I put the car away.

Now I currently have 2 sets of wheels and tires for my m coupe, the stock wheels and tires (which I never use and only keep in the event I ever sell my car) and then my apex's proxes. I typically do 2-3 track days a year, and the rest of my time I spend on public roads. I only drive my car April-November, and the proxes hate the cold and rain, enough that I won't bother to take the car out in those conditions.
My thought is that if I'm only getting 7k miles out of a set of proxes that really only have about 500 track miles on them, should I replace them with something more civil, Michellin pss, and then maybe keep a set of proxes for track driving? Is it worth if it if I'm only at the track a hand full of times a year? I could even mount my track tires on my old stock wheels if I wanted.

Thoughts?
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      10-17-2015, 10:51 PM   #91
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Quote:
Originally Posted by Calichase View Post
Some food for thought-

My current toyo proxes rears are showing some severe wear and I will most likely replace them this winter when I put the car away.

Now I currently have 2 sets of wheels and tires for my m coupe, the stock wheels and tires (which I never use and only keep in the event I ever sell my car) and then my apex's proxes. I typically do 2-3 track days a year, and the rest of my time I spend on public roads. I only drive my car April-November, and the proxes hate the cold and rain, enough that I won't bother to take the car out in those conditions.
My thought is that if I'm only getting 7k miles out of a set of proxes that really only have about 500 track miles on them, should I replace them with something more civil, Michellin pss, and then maybe keep a set of proxes for track driving? Is it worth if it if I'm only at the track a hand full of times a year? I could even mount my track tires on my old stock wheels if I wanted.

Thoughts?
Running R-Comps on the street is pretty aggressive. With a UTQG of only 100, they really aren't meant to last too long and at 7k miles it seems like you actually did alright.

If you need R-Comps, I'd say use a set of wheels dedicated to track and pick up something more street friendly for the every day wheels. Or, go with the "Extreme Performance" street tire tier and see how you like them on the track (Hankook RS3, Dunlop Star Specs, Bridgestone RE-11, Toyo R1R, Federal RSR, etc.).
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      03-31-2016, 10:15 AM   #92
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A lot has been going on recently and I haven't been able to even work on the car much over the winter. I had a long list of things to check on during my annual winter maintenance, one of which was getting my oil analyzed.
07 M COUPE-022116.pdf

This certainly eases my worries of the bearings on my car. Looks like my car is very healthy!

On another note, I will be back on the track in 2 weeks so I plan to spend most of this weekend on the car, bringing it out of the garage from hibernation! The last time I drive the car was on the track in November so needless to say I'm very excited.

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Lastly, I will be spending the summer out in Palo Alto working for Tesla
However the m coupe will not be joining me, so as of right now the plan is to pick up an s2000 to attempt to occupy my needs and be able to track at Laguna Seca and Sonoma. Then sell it in early Fall and go all out on the m coupe next winter.

Speaking of which I was out there about 2 weeks ago and had the opportunity to watch 7 of the 35 total P1 gtrs get thrown around Laguna Seca. What an experience and sound they make!
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Last edited by Calichase; 04-02-2016 at 09:49 AM..
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      04-02-2016, 09:49 AM   #93
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updated with pictures!
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      04-02-2016, 10:40 AM   #94
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Quote:
Originally Posted by dubsesd View Post
I don't thing dreg ever installed it. Just car with mods he installed

2016 ///F80 M3 Individual Atlantis Blue / Black Full / Carbon Cermics / 6MT

MPE / M Performance & Carbon package / KW v3 / Vorsteiner VFF102 / Michelin PSS / 20% tint / 3d Design diffuser / IND reflectors / N54tuning C-Flap / EAS Carbon seatbacks / Pedal Haus Black anodized / M Performance Tri color alcantara Boot
Dubs, you can't just get away with your signature here. You have to show us some pictures of the car. You are quick with the upgrades BTW. You had it all lined up, did you?
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      04-19-2016, 10:08 AM   #95
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Was able to spend the weekend at my home track of summit point!

Car drove fantastic for being the first time out since November! Every time I have this car on the track I fall more and more for it! Such an incredible experience.

There was actually 5 other m coupes there! I have never seen 3 Interlagos blue m coupes at the same time!
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      04-19-2016, 11:00 PM   #96
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Looks tops mate bet you had a great day
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      04-23-2016, 05:23 PM   #97
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Looking great as usual! Interesting to see 3 IB M Coupes all together haha

What'll you be doing for Tesla?
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      04-28-2016, 11:22 AM   #98
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Old video that I never posted

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      06-03-2016, 05:12 PM   #99
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I love this car
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      06-22-2016, 06:39 PM   #100
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me too!
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      06-27-2016, 04:39 PM   #101
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Having a lot of ideas lately!

Just picked up a little summer project.

Wheels, r compounds, Coilovers, and an exhaust are all sitting in my closet!!


It's funny, I see member after member sell their m coupe for a z06 or gt4/3 and many inevitable buy another. The s2000 is certainly not a direct competitor to the m coupe but really makes me appreciate how incredible the car is. Raw yet refined.

Anywho, I have decided to change the route of my build for the z4m coupe. After 2 years of ownership the car had seen many track days and I believe that it's best purpose for me use is a heavily track prepared street legal vehicle.

My next modifications will follow this theme more closely, starting with an oem + aero package. I am in the design phase currently generating renderings of designs that are not only aesthetically pleasing but beneficial to the car as a whole. Unfortunately there are a few things I wish I could know to assist in design (center of pressure of car in relation to cg, overall drag and downforce measurements of the m coupe, and a realistic cad file) but I can make due without. I would like to thank @inTgr8r for the inspiration!!

Here's are the rough blueprints of what I have planned.


-Overall goals-
Make 350+whp/270ft lbs.
3250lbs full fluids and me with all safety gear


-Safety gear-
Rear half cage (black or IB, oem fit and finish)
6 point harnesses
better seat rails/mounts then


-Performance-
stoptech bbk-380x32mm 6 pot front, 355x28 4 pot rear
(must use apex arc 8 10" et25 front for the 380)
run 110 catless
Stop tech S.S. brake lines and hi temp fluid
296/280 cams (max duration for stock springs/ valvetrain) with 8500rpm red line
4.10 ring and pinion

-Suspension-
Moton 3 way Motorsports coilovers
front strut tower brace
Sway bars
Rear Under brace


Make carbon aero kit with (need cad model of car to run proper Cfd
1. front spoiler (apr like utilizing m stache 2 with front undertray extension)
2. rear diffuser (dodge viper acr ta 2.0 like) attempting to maximize size of diffuser tunnels. Only problem is our exhaust location really restricts this. I love the stock bumper design and do now want to install just a simple diffuser between the mufflers
3. 2 front canards each side
4. front fender extensions (similar to 997.2 gt3 RS thanks inTgr8r!)
5. rear lip spoiler
6. rear spoiler (apr like)

Other
Lightweight battery and mount-weigh current

Square wheels for track -275/35 Hoosiers on apex arc 8 18x10 et 25

On a side note, I've been busy working on another 4 wheel rwd vehicle. A small sae car. Just layed up and oven cured the pre preg monocoque over the weekend. Carbon wheels (2lbs each) have already been completed!
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Last edited by Calichase; 07-03-2016 at 06:54 PM..
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      06-27-2016, 07:02 PM   #102
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Quote:
Originally Posted by Calichase
Having a lot of ideas lately!

Just picked up a little summer project.

Wheels, r compounds, Coilovers, and an exhaust are all sitting in my closet!!


It's funny, I see member after member sell their m coupe for a z06 or gt4/3 and many inevitable but another. The s2000 is certainly not a direct competitor to the m coupe but really makes me appreciate how incredible the car is. Raw yet refined.

Anywho, I have decided to change the route of my build for the z4m coupe. After 2 years of ownership the car had seen many track days and I believe that it's best purpose for me use is a heavily track prepared street legal vehicle.

My next modifications will follow this theme more closely, starting with an oem + aero package. I am in the design phase currently generating renderings of designs that are not only aesthetically pleasing but beneficial to the car as a whole. Unfortunately there are a few things I wish I could know to assist in design (center of pressure of car in relation to cg, overall drag and downforce measurements of the m coupe, and a realistic cad file) but I can make due without. I would like to thank @inTgr8r for the inspiration!!

Here's are the rough blueprints of what I have planned.


-Overall goals-
Make 350+whp/270ft lbs.
3250lbs full fluids and me with all safety gear


-Safety gear-
Rear half cage (black or IB, oem fit and finish)
6 point harnesses
better seat rails/mounts then


-Performance-
stoptech bbk-380x32mm 6 pot front, 355x28 4 pot rear
(must use apex arc 8 10" et25 front for the 380)
run 110 catless
Stop tech S.S. brake lines and hi temp fluid
296/280 cams (max duration for stock springs/ valvetrain) with 8500rpm red line
4.10 ring and pinion

-Suspension-
Moton 3 way Motorsports coilovers
front strut tower brace
Sway bars
Rear Under brace


Make carbon aero kit with (need cad model of car to run proper Cfd
1. front spoiler (apr like utilizing m stache 2 with front undertray extension)
2. rear diffuser (dodge viper acr ta 2.0 like) attempting to maximize size of diffuser tunnels. Only problem is our exhaust location really restricts this. I love the stock bumper design and do now want to install just a simple diffuser between the mufflers
3. 2 front canards each side
4. front fender extensions (similar to 997.2 gt3 RS thanks inTgr8r!)
5. rear lip spoiler
6. rear spoiler (apr like)

Other
Lightweight battery and mount-weigh current

Square wheels for track -275/35 Hoosiers on apex arc 8 18x10 et 25

On a side note, I've been busy working on another 4 wheel rwd vehicle. A small sae car. Just layed up and oven cured the pre preg monocoque over the weekend. Carbon wheels (2lbs each) have already been completed!
Nice project!
But I have used 18x10 et 25 at the track and it rubs badly all four tires for me....thats with -3.5 camber on front and -2.5 on rear....and my front isn't even that low....not sure how you will manage to do that.
Do you mind me asking what were the ib z4m laptimes?

Thx!
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      06-27-2016, 09:00 PM   #103
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Hi Cali, love what youve got planned mate and will be keeping a keen eye on your build.

296/280 what are the specs and requirments on those?
Springs and retainers or are they still standard lift ?

I read somewhere that 296 intake needs uprated pistons?

Cant wait to see your aero package. :-D
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      06-28-2016, 03:00 AM   #104
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Quote:
Originally Posted by AriuSen View Post
Nice project!
But I have used 18x10 et 25 at the track and it rubs badly all four tires for me....thats with -3.5 camber on front and -2.5 on rear....and my front isn't even that low....not sure how you will manage to do that.
Do you mind me asking what were the ib z4m laptimes?

Thx!

i don't know how anyone gets these type of tyre setups to work, the z4 just cant take that type of width and offset... i suspect if we looked at alot of the cars where people shout "no rub" they would be damaged quite heavily.

one of my criteria for a wheel setup was a true aggressive as possible with no rub.
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      06-28-2016, 11:57 AM   #105
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Quote:
Originally Posted by Beedub
Quote:
Originally Posted by AriuSen View Post
Nice project!
But I have used 18x10 et 25 at the track and it rubs badly all four tires for me....thats with -3.5 camber on front and -2.5 on rear....and my front isn't even that low....not sure how you will manage to do that.
Do you mind me asking what were the ib z4m laptimes?

Thx!

i don't know how anyone gets these type of tyre setups to work, the z4 just cant take that type of width and offset... i suspect if we looked at alot of the cars where people shout "no rub" they would be damaged quite heavily.

one of my criteria for a wheel setup was a true aggressive as possible with no rub.
Actually I didn't even try at the track

I just test fitted...and now I remembered...the tires rub with my Springs and also rubs a lot on the fenders...I heard people using that, but it's physically impossible....I was using before 18x9.5 et22 and it was rubbing at the track.
Now I have 18x9.5 et 25 and it doesn't rub anymore.
I saw one person posting a pic of his car with 18x10 and his car was higher than a truck lol
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      07-03-2016, 06:58 PM   #106
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Quote:
Originally Posted by AriuSen View Post
Nice project!
But I have used 18x10 et 25 at the track and it rubs badly all four tires for me....thats with -3.5 camber on front and -2.5 on rear....and my front isn't even that low....not sure how you will manage to do that.
Do you mind me asking what were the ib z4m laptimes?

Thx!
Thanks for the advice! Did you have any fender work done? Meaning were your fenders rolled or pulled? Where were they rubbing? What brand tires?

I have only run at Summit Point, WV. Currently running 1:24s recreationally. Hoping to modify the car and run nasa TT next season!
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      10-24-2016, 09:30 AM   #107
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So a long over due update.

I've only put about 1500 miles on the car in 2016 but things will change in the next few months.


Over the weekend I went through the car in preparation for 4 track days in November at dominion raceway and summit point.

Quick overview of what I took care of

General maintenance/ inspections
Installation of strut brace
Installation of p3 vent guage
Installation of stoptech stainless steel brake lines
Installation of Harrison motorsports brass caliper guides and pins
Titanium backing plates
Fabrication and installation of custom front brake ducts with carbon inlets
Installation of pfc 08 track brake pads
Bled brakes with endless rf650 fluid
Fabricated a custom battery mount for my smaller lightweight battery and relocated closer to rear shock tower

Can't wait to get on the track with the new brake components!

Next on the agenda is a carbon front splitter with front air damn and side damns and a rear diffuser!
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      04-02-2017, 05:49 PM   #108
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Haven't posted in awhile as the car has been tucked away. Recently had the time to install a few goodies

Apex 75mm stud conversion
Raise the car up a hair
265/35/18s up front
Deka xt lightweight battery and relocation
Also fixed an o2 sensor issue so now the car runs without a cel.

Mods still uninstalled
-vf570 supercharger I picked up from a local member
-autosolutions ssk
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      04-02-2017, 05:54 PM   #109
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And an upcoming surprise


I have a few plans for the build.

For now, thinking of reaching out to frank smith for another dyno tune. Utilizing variable meth injection with 7 bungs (1 per itb plus 1 at the entrance to the intake manifold)

Two stages of tuning, low boost and no meth when the sport button is not engaged and high boost and meth when it is.

Then some smaller items such as additional oil cooling, a large heat exchanger and radiator will be addresses soon after.

But before that, I would like to change the rod bearings, vanos bolts and get a few more na track days in!
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      06-28-2017, 09:05 PM   #110
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Well after a long two weeks, a ton of work has been done to the m coupe. Here's a quick run through of the experience.


The goal was to install new parts, test/fix anything and break in the parts. Then dyno tune and ship the car via train to Florida where i have relocated. In preparation for a supercharged track car, I decided to address a few common s54 issues with the following parts.

-wpc treated bearings
-oem rod bolts
-oem vanos cam/hub bolts
-cyro treated vanos exhaust hub
-remilled (slightly smaller diameter) vanos oil pump disc
-vf570 supercharger


I gave myself two weeks of full dedication to the task and it came down to the wire. Big thanks to Tuning Tech Frank Smith and Beisan for suppling parts in a rush.

Vanos check and upgrade part 1 (days 1 and 2)

Starting up top, the valve cover was pulled and the vanos solenoid was carefully removed. Upon my surprise one of the exhaust hub's pins had sheared, luckily in a way that still allowed the damaged pin to function and alleviate some force that the other pin saw. The chip was right next to the hub, indicating that the issue may have happened not too long ago. I consider myself very luckily for finding this in time.


At the moment of discovery I had not planned on performing the exhaust hub and oil pump disk upgrade and did not have the new components. Fearing that messing with any components on either the bottom (rod bearings) or top side of the engine could result in timing issues, and that I didn't want to move from TDC of cylinder 1, I buttoned up and torqued the new intake hub side hardware and moved to the supercharger. Amazingly I sourced and found the needed components over the weekend and suppliers were able to get them to be asap.

Supercharger part 1 (days 2 and 3)

I purchased a used vf570 from a forum member some time ago. As much as the forum despises vf, I have had experience with the kit on m3s and liked both the hardware, ability to upgrade and fact that I was close to TTFS and could essentially perform the entire installation and testing without ever dealing with vf (which seems like the reason most people are not pleased with them).

I was not given instructions and therefore utilized the E46 m3 instructions which I later found out were not always the same.

I installed the blower assembly and intake/charge pipe and heat exchanger (both took much longer then anticipated as the lower alternator bolt required the engine to be moved to get to it).I followed the m3s heat exchanger placement and ended up leaving it in this alternate location.

I also found I was missing quite a few components including hardware, a manifold bracket, water pump relay, and a few other odds and ends. I reached out to vf expecting the worst and to my surprise they really pulled through. Gary was a pleasure, and despite me not buying the kit through them, they were helpful and even supplied me with the install manual for the z4m. They managed to overnight me all the components I was missing from SoCal to md in less then 24 hours after our first contact. I was impressed with the speedy response time and customer service of vf.

Vanos repair part 2 and valve adjustment (day 5)

With the cyro hub and remachined vanos oil pump disc in, as well as some needed gaskets and o rings, I reinstalled and torqued the new components. Careful attention was paid to ensuring the splines aligned as before.

With the vanos solenoid buttoned up, a valve adjustment was performed. To my surprise, 19/24 valves had to be adjusted despite having an adjustment just 12k miles ago.

Rod bearing replacement (day 6)

With the top side complete, the rod bearings were installed. I was genuinely surprised with the wear that I saw. I have had two oil analyses over two years, both which had very positive results (for not showing bearing wear).

After talking with a few bmw specialist, everyone agreed that the best course of action is oem rod bolts (not arp) and wpc treated bearings (not a coated type). The install was straight forward and my particular favorite part was the torquing/seating procedure calling for 3 iterations of the following Torques
5n*m, 30n*m and then 105degrees, then 360 degrees back out.

The oil pan was regasketed and reinstalled and oil was added. Total time from pan off to pan on was roughly 4 hours.

Supercharger install part 2 (day 7)

With a dyno appointment scheduled for day 9, and a 1000 mile break in period desired before that, time was of the essence.

With the new vf components and the z4m specific install in hand, the install went quickly. With some trimming, the front bumper fit around the heat exchanger in its lower position (but above the oil cooler) therefore was left there, hose lines were run, intake was run, the water pump and resovoir were installed, although the manifold install gave us a challenge. After a long night we stopped very short of success.

Supercharger install part 3 (day 8)

With a fresh outlook, the manifold slipped on quickly and the car was buttoned up. Since the kit was used, it did not come with a vf flash tune. Frank mentioned the car being drivable immediately so I figured I would perform the break in an then get a custom dyno tune at his shop. Well i don't know what I was thinking as a car that uses a maf sensor to run cannot run well without one. The car would drive, but stall and die when coming to a stop from a load (not catch an idle) to my surprise though, the car idled and rev'd beautifully unloaded. Fault codes showed tons of maf issues as well as an intake cam positioning issue.

Base Tuning (days 9, 10, 11, and 12)

The car was trailered to ttfs and flashed with a base tune used on another vf570 powered z4m. Frank and the guys and I spent all afternoon of day 9 attempting to read and flash the car to no avail, and the same continued for days 10, 11 and 12. Issues were caused by my small battery not being able to maintain 12v despite a battery charger on the car (to the engine bay jump points though, issue was resolved charging directly to the battery) and a strange backflow issue with the vf water pump causing the ecu to not shut off for until atleast 15 seconds after the car shut off.

Eventually the car was tuned and I tested it. It hesitated and jerked but ran well, however frank advised me that the vanos issue was still present and the cams being out of range meant the car was unsafe to drive. I drove the car low rpm for a while to ensure no stalling coming to a stop and then trailered the car back to the shop I was working at.

We followed a process of Reading faults, clearing them, having the car relearn adaptations and driving it worked out the kinks. After moving a hose clamp on a throttle body coupler that was interfering with the throttle body actuation, the car ran well. Multiple vanos system checks and tests were performed and the car passes all within range.

Now time to break-in in Florida and put her on a dyno for a custom tune and to get out to Sebring asap!
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