Update on my Z4M Coupe Mods

[wrose]

Finally I have my M ready for summer !!
First thanks to all of you for the information you've made available to me!!

Here's what I've done since last year:
- TMS SS brake hoses, Camber bolts, Wheel Stud Kit & caliper bushing kit
- Hawk HP Plus brake pads
- Apex Arc group buy wheels (18x9 w 245/40/18 tires & 18x10 w 285/35/18 V12 tires)
- APR gb front splitter
- Rear lip spoiler
- Finally (best for last) ESS S/C

On order-3d design gauge pod (with boost, oil pressure & coolant temp)

Special Thanks to Plantirion, Beedub, Shipkiller, fr8tdog and Crfine 88 for the information provided that made my decision very informative and easy.

First track day after break-in was yesterday and the increased power is awesome
- Have to learn how to drive it all over now !!
Tracked it again today --Wow
Can't wait to get to Calabogie in July
- Will post photos and video of yesterday at the track soon( son has it on his I-phone )

Shipkiller - are you having any front tire wear issues with "O" toe and -2.5 camber? mine are wearing as if the front wheels are towed "in"-I think it may be the tires because I've checked the alignment on 2 machines-Any suggestions?

[ZStig]

this thread is worthless without pics

[l4zy]

you had a busy year.

[z4mnyc]

Originally Posted by wrose

Shipkiller-are you having any front tire wear issues with "O" toe and -2.5 camber? mine are wearing as if the front wheels are toed "in"-I think it may be the tires because I've checked the alignment on 2 machines-Any suggestions?

What pressure are you running the tires at hot on the track? I had the same problem with Hoosiers and lowering the pressure helped.

You should use a pyrometer and check the outer, middle and inner temp of the fronts as you come off the track. This will help to understand how the fronts are set up.

[wrose]

i'm running 40 psi ft and 36 psi rr hot. I'll lower them to 38 & 34 today and see how that feels .
Thanks
Wayne

[Newff]

I also have ARC-8's with Hankook V12's What PSI would you think I should use for regular daily driving?

[Finnegan]

Originally Posted by Newff

I also have ARC-8's with Hankook V12's What PSI would you think I should use for regular daily driving?

I'd probably stick with the OEM recommendations on the door jamb for everyday driving. Tire pressure at the track is another story.

Wrose, how did the lower pressures work?

[Samjam927]

Originally Posted by Roffle Waffle

this thread is worthless without pics

+1

[wrose]

I used 38 ft/ 34 rr pressure hot yesterday and it seemed to have more grip. I'm going to remove the wheels today and have a good look at the tires and also see how the Hawk brake pads look after 3 track days .

[wrose]

Originally Posted by Roffle Waffle

this thread is worthless without pics

Here you go!

And some video by my son using his iphone on a mount in his car.

[ZStig]

oh cool! a sepang bronze roadster in the garage too. Cool videos, its funny how the WRX sounds like its not even revving to 4000rpm

[kennef]

nice videos!!

May I know the track video recording app your son using?

[a_riddler]

Harry's LapTimer http://download.cnet.com/Harry-s-Lap...-75041826.html

[wrose]

This is Graham (Waynes Son)

a_riddler is correct, I'm using Harry's GPS Laptimer Pro. - Here is actual site, best app for 15ish bucks. It records every 2nd lap with video and GPS for every lap.
http://web.me.com/hschlangmann/LapTi...page/Home.html

It's pretty crazy to see how fast he pulls away on the straighter sections. I'm running RS3's and he has V12's so my stickier tires are helping my corner speeds, but the ESS adds sooo much power
I totally suggest it for anyone thinking about it, its quiet and looks so clean.



I have a scosche mount that has a flexible neck, i have it offset from center, and bent so you don't see the mount. I've spent a TON on mounts and this is the best i've used (walmart, $25 in canada)

its the mount from: http://www.scosche.com/consumer-tech/product/1594 and the neck from: http://www.scosche.com/consumer-tech/product/1863

[Tonybest]

If by Calabogie in July, you mean the weekend of the 15-16-17th. I will come and say hello, since I am registered.

[SmartBastard]

How is the 285/35/18 in rear working out for you? I'm thinking about going the same setup on APEX ARC-8 as well, tires will me either semi-slick or full slicks ...

[VinnieAces]

awesome stuff,

thats the coolest app i've ever seen too

[wrose]

Originally Posted by SmartBastard

How is the 285/35/18 in rear working out for you? I'm thinking about going the same setup on APEX ARC-8 as well, tires will me either semi-slick or full slicks ...

I have gotten rubbing on the fender liners(outside on left and inside on rt.)
which is from agressive driving on our local track which has a rough surface and 11 turns over its 2.5 km . On normal roads no noise from rubbing and also at Calabogie in July i didn't notice any rubbing. the extra bite from the footprint on the 285's make it worth it ( 10.1 inch contact vs 9.1 inch for
stock 255s . Also last year I have DSC issues with stock tires but this year no issues even with the extra power of the S/C.
I am using Hankook RS3's -very pleased .

[SmartBastard]

Originally Posted by wrose

I have gotten rubbing on the fender liners(outside on left and inside on rt.)
which is from agressive driving on our local track which has a rough surface and 11 turns over its 2.5 km . On normal roads no noise from rubbing and also at Calabogie in July i didn't notice any rubbing. the extra bite from the footprint on the 285's make it worth it ( 10.1 inch contact vs 9.1 inch for
stock 255s . Also last year I have DSC issues with stock tires but this year no issues even with the extra power of the S/C.
I am using Hankook RS3's -very pleased .

Thanks a lot for the feedback

[ShakyDog]

Your collection is what I am looking to complete. I have the roadster and the X3, just need the ZMC or Si Coupe :-)

Steve

(Just want a track car)

[wrose]

Originally Posted by ShakyDog

Your collection is what I am looking to complete. I have the roadster and the X3, just need the ZMC or Si Coupe :-)

Steve

st want a track car)

Look for the M Coupe -you won't be disappointed . My first Z was a Z4 3.0l Roadster -then moved to the M (roadster and Coupe) . Coupe is a great track car stock and only improved with mods you choose to suit personal taste.

[crfine88]

Great build wayne! She is a purpose built beauty!