I have been doing HPDE in my 2011 135i for a year and am looking to change it up.
So I have been wanting to make the switch to more of a momentum car, with hopefully lower consumable costs.

I have done lots to the 135i to make it reliable, and optimized for the track. So Im wondering, S2K in stock form will it need anything to be romped on at the track?

Are their any glaring deficiencies that must be addressed, or is the car ready to roll onto a track for multiple sessions.

I assume just proper tires and track pads?

My 135i needed a LSD, and some suspension to even be predictable and to a degree safe on the track. In addition it eats tires, partly due to weight ~3300 and understeer issues.

So id love advice or input. I looked at miatas but just cant see myself doing that. Also this is a dual purpose vehicle, DD and track.

Thanks in advance!

 

 

What it "needs" for a track day mostly depends on the skill of the driver.. Most people do their first track day or two with whatever tires are on the car and OEM pads. If you are moderately quick and/or drive a track with heavy breaking the stock pads will not last long. So yes, pads and tires are all you "need".

For my first track day here's what I did:

Changed all fluids (engine, trans, diff, brakes, clutch)

Aftermarket pads with cheap rotors (the S2000 is known to crack brake rotors, its a good idea to bring a spare or two again depending how quick you are, heavy braking etc)

Hankook RS3-V2 tires

The car was my daily at the time so I wanted a dedicated set of pads/rotors and wheels/tires that I could just swap back to my stock stuff once back home. Car was dead reliable in super hot ambient temps (june in FL).



Once you've got some drive time in the car under your belt you will be able to see/feel any changes you want to make such as sway bars, shocks or going to a square tire setup, modify as necessary. The diff in these cars is pretty good (IMO), I don't see/hear of many people swapping them out. More serious guys do oil coolers, brake ducting and/or front BBK.

Check out the racing and competition sub forum ( https://www.s2ki.com/s2000/forum/11-...peed-ventures/ ), there is alot of discussion on this topic. Welcome, and enjoy

 

Thanks for the warm welcome, I will definitely comb through the racing & competition sub forum.

The advice is well received. Yeah unfortunately the 135i comes with an open diff stock so it had to go. I use moderate race/track pads on the 135i and definitely have a set of rotors and pads that get swapped in and out pre/post track weekend.

I do want to just drive the car a bit before making any changes. I get easily bit by the mod bug and its all downhill.

I am in the intermediate group for HPDE with Chin, have about 15 days. I got into it while driving a 6 speed TSX lol... How much track time will the rs-3 stand up to? obviously thats variable to the driver, but perhaps for you...

 

No problem.

Well, they made it through the weekend (think I did 7 sessions?) some ~800 mile round trip and they barely looked used lol. I havent been back to the track since, unfortunately . There is a ton of debate and discussion on the different tires (RE-71R, Dunlop ZII/ZII SS, RS3, etc). I went with the RS3 because they seem to be the best at handling heat, last the longest and are pretty cheap, alot of the FL guys were running them.

I think the general consensus at the moment is that unless you're chasing track records, just buy any one of them and have fun.

 

 

Hello and welcome to the Forums!

 

Welcome.

Check out the link in my signaure.

 

Thanks guys/gals! Mike, ive already read several of your threads great stuff.

 

Quick question maybe someone can help me with this but what is the path/mods for the most power you can make with the lowest weight?

From what i gathered:
ITBS
Header
Test Pipe
Single exhaust
Standalone ECU/EMS

The other question is what is the lightest supercharger option? ( i dont want turbo lag)

My goal is to retain the 50/50 weight balance and hopefully keep the weight down as much as possible while being able to daily drive the thing...