Track Project M3

titan · 17-08-2010, 12:50 AM

Hi guys

whilst not having a CSL you guys seem to know what you're doing so i thought i'd post up here...

Just bought a 2003 M3 for a cheap trackday project. I say "cheap" because my other track car - an evo - is the other end of the spectrum. I've "been there, done that" with regards to engine mods and now want to do something a little more sensible.

So i was thinking stock M3, strip and lighten, sort the brakes and suspension, then leave the engine alone ! Chuck in a pair of more suitable seats, rear cage and harnesses and job done.

A friend has the alcon kit that Thorney are peddling as the CSL Cup kit (same size front rotors as on my evo, bigger rears though!), I've had one on order for a while, but Thorney are apparently waiting on a bit of hose from alcon...we'll see - I know John posts on here perhaps I can get some action on that ;-)

I would prefer to run 18" to keep tyre costs down, I've heard that running a 9J at the front can help with track, does anyone know what offset front/rear would be correct?

With regards to the suspension, choices choices choices...I've a 3-way competition KW kit on my evo which seems to work well. I looked at Ohlins and Nitron when deciding...I've had a read on here and moton/intrax also get some big thumbs up. Bearing in mind that this is meant to be a cheaper trackday project I don't want to spend the earth, KW Clubsports at a little over 1k, or the Nitron setup at 2.5k ?

Can much weight be shelved? I know the stock electric seats weigh a tonne, but appreciate any advice on where decent savings can be made.

All and any advice most appreciated!

17-08-2010, 12:50 AM	#1
titan S5 - Full Throttle Join Date: Aug 2010 Posts: 268 Casino cash: $1363	Track Project M3 Hi guys whilst not having a CSL you guys seem to know what you're doing so i thought i'd post up here... Just bought a 2003 M3 for a cheap trackday project. I say "cheap" because my other track car - an evo - is the other end of the spectrum. I've "been there, done that" with regards to engine mods and now want to do something a little more sensible. So i was thinking stock M3, strip and lighten, sort the brakes and suspension, then leave the engine alone ! Chuck in a pair of more suitable seats, rear cage and harnesses and job done. A friend has the alcon kit that Thorney are peddling as the CSL Cup kit (same size front rotors as on my evo, bigger rears though!), I've had one on order for a while, but Thorney are apparently waiting on a bit of hose from alcon...we'll see - I know John posts on here perhaps I can get some action on that ;-) I would prefer to run 18" to keep tyre costs down, I've heard that running a 9J at the front can help with track, does anyone know what offset front/rear would be correct? With regards to the suspension, choices choices choices...I've a 3-way competition KW kit on my evo which seems to work well. I looked at Ohlins and Nitron when deciding...I've had a read on here and moton/intrax also get some big thumbs up. Bearing in mind that this is meant to be a cheaper trackday project I don't want to spend the earth, KW Clubsports at a little over 1k, or the Nitron setup at 2.5k ? Can much weight be shelved? I know the stock electric seats weigh a tonne, but appreciate any advice on where decent savings can be made. All and any advice most appreciated!