AdamOst

Hmm, that thread got me no real closer to picking a sump

Was the sharp left hander layout. I need more power to go faster on straights though, only gots 160kw or so damn stock engine. Though im a couple of kph down on the last time i went which is odd, i was hittin 199/200 previously but slower laptimes.

I was braking just after 150m, I dont think you can brake any later than that on road tyres

Only an old one, the trackday just come I had camera in the bumper. http://www.youtube.com/user/aost

Might be the long stint, though i did a 13 lap stint at the end of the first trackday I went to at HD, then did an entire trackday with no issues at taupo, then did another TD at HD and did 3 normal stints, and felt the crack driving home again, then 8 months later did this trackday at taupo and felt it after my first session. These sessions are usually 1 warmup, 5 flying, 1 cooldown. I never leave the handbrake on and always do a warm down lap at least not really using brakes. Generally my warmup lap is mostly tame, though once or twice I did go a bit hard I guess, dude to there only being a 20min gap since the last session. Ill try make more use of the warmup lap then, and for any long distance stints at the end of the day maybe take a slow lap or two in the middle.

noticed the first one on the drive home, it was a bit wobbly in the steering wheel under braking but i thought ti was just the pads being low. Went to drive ot work the next day and it felt like a wheel was loose so checked them all and saw the crack. This time i noticed it when i went to swap the marshalls around the track. So both times its been after hot laps, not during.

MIght have to do a roadtrip to wellington to get it done then. Been meaning to go to wellington again sometime so gives me an excuse I guess.

dont know how many turns exactly, just every few minutes i pushed the car forward a bit.

version 6 easy, dat rear wing and front bumper combo.

Its what im thinking. The braking itself is fantastic, specially on road tyres, its just that i\'ve cracked two rotors in two trackdays now

Why do none of the auckland places do v6 reflash :<

Did most of that really Might have gone a bit rough on the outlap on one of my stints. I now have a spare for future issues, was only 75$ each fomr partmaster. Thankfully Taupo had some in stock so I flicked the old one off, put the new one on, did a few shakedown laps to bed it in and off i went again. My final session at taupo was 13 laps, with a big off but had no real problems with fade or anything. Same the first time i went to hampton downs

I have only noticed the crack when ive gone out again and hit the brakes for the first time and its shuddered, theres pad material on the rotor and running bnt rbf500 fluid.

Yeah im on the brakes as hard as I can be tbh, to the point of the abs sometimes coming on a bit. The front end of the car is all stock, so i dont know how good that is for airflow. Cracked a rotor with both the pagids and bendix ultimates. Sigh, maybe its time to do a bembros upgrade....

Did ~120kms at both HD and Taupo, then cracked the first rotor 2 sessions into next visit to HD. Cracked the other one after my first session at Taupo.

Hampton downs: maybe high teen degrees air temp, dry, main straight braking from 200kph Taupo: similar conditions/braking I guess. Cars stock, 1300kg version 6 sti? Brakes are stock 4 pots with pagid rs-29 pads. RE11 road tyres. Taupo only really has the 3 main braking zones I guess which are in a straight line, so braking heavily for 50-75m then turn into corners. This time as well i made sure to rotate the wheels a bit when parked up every so often to rotate the heat. Did a cool down lap after each stint barely using brakes.

So, for the second consecutive trackday ive managed to crack a rotor. They were new about a year ago, OEM type ones from Subtech. Original pads were bendix ultimates, just swapped to pagid RS-29 ones. I was braking pretty heavily, sometimes activating abs i guess which probably didnt help things either. Anything I can do to help stop this happening in future? Less aggressive on brakes is an option I guess, but a bit hard to do when trackday adrenaline kicks in. Ill look at removing the ABS fuse as well. Ducting? Proper aftermarket rotors? ???

Need to get around to getting some of these made, didnt get it sorted for last trackday

Not so much today, but on friday went to a trackday I organised, and set a new PB which I was pretty happy with. Also cracked a front rotor for the second consecutive trackday >_< Luckily partmaster in taupo had some in stock so replaced it and carried on. Video of my quickest lap. Car is still mostly stock, so will need to start spending some money on suspension/power to drop it down further.

cross post frm project thread but. Trackday prep Penrite 10w40 racing oil BNT rb500 brake fluid pagid rs29 front pads, bendix cgt rears install underbody brace bleed fluids install sandghwich plate for oil pressure/temp gauges Get brake fluid in my eye The beginning Front brakes Gravity, how do you work? Gauges Underbody K brace

Where do I buy an oil sandwich plate thing from? I got one with my defi genome gauges, but it\'s missing the seal and the seal place I went to in onehunga were not so confident in giving me something. So it might be easier to just buy a new one then risk using the wrong seal. See scarles sell a pro sport one, will that do?

Dont think my v6 has one, ive had fuel surge on the track and run it pretty low yet never seen it. Was it an option?

For a street driven car does having the number plate mounted in the stock position really make that much of a difference to airflow/IAT?

Yeha im leaning towards macbuilt, but i spent all my money so will pick one up in a couple of months. Did you just get the default one or modified al?