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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!
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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!