Brakes - Track Days

mmm-five said:
You can get pad transfer onto the discs, which will results in a bit of rumbling/vibration, but it's usually settled down after a few laps and a bit of heat :thumbsup:
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I had pad transfer onto discs with my VX220 before I uprated the brake pads and the judder was terrifying. I have a picture of me braking with black discs. The problem didn't go away though until I put Pagid RS4-2 pads in with new standard discs.
 
ga41 said:
If you would do 40min flat-out driving then they won't last... Firstly you would experience brake fluid boil, mushy and soft pedal, then eventually the pads would probably overheat but you'd most likely stop by that time anyway due to the soft pedal.

It depends really on what driver you are. I had my brakes upgraded to a Stoptech big brake kit soon after i started tracking the car as i got fluid boil even with upgraded fluid. In hindsight I think i should have instead worked more on my technique and spend the money on brakes later on. I've only had a few trackdays with the big brake kit and then stopped but that's another matter.
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I do tend to brake very hard on the threshold of locking the wheels.
 
The more I look into the Boxster S the more I'm worried about it. I was hoping it would be good for track without mods but some forum posts state you need to uprate some oil parts to ensure the big end doesn't get starved of oil under cornering? :/
 
We did nothing to our Boxster, but if you are running sticky tyres at places like Mallory or Donington with long right handers you may be more likely to have a problem, where oil accumulates in the left bank and can't return fast enough to the sump. Adding the extra oil pump (part of the X51 pack iirc) or a spacer to create a deeper sump will sort this (careful of clearance when riding kerbs).
The cars you are looking at can make excellent track cars, but they are road cars first and all will need some sort of upgrade to make them suitable for long periods of sustained thrashing. If not, buy a Caterham. :driving:
 
Fishy Dave said:
We did nothing to our Boxster, but if you are running sticky tyres at places like Mallory or Donington with long right handers you may be more likely to have a problem, where oil accumulates in the left bank and can't return fast enough to the sump. Adding the extra oil pump (part of the X51 pack iirc) or a spacer to create a deeper sump will sort this (careful of clearance when riding kerbs).
The cars you are looking at can make excellent track cars, but they are road cars first and all will need some sort of upgrade to make them suitable for long periods of sustained thrashing. If not, buy a Caterham. :driving:
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Thanks for the advice. I'm finding the VX220 too hardcore and lacking in creature comforts so I doubt I would be happy in a caterham. In fact I feel sorry for people sitting in the cold getting soaking wet.. rather them than me. I envy the people sitting in M3's and Boxster's, they look so comfortable and Cadwell is a 6 hour round trip :)

Really like the look of the Z4M and sitting in it feels better than a Boxster, I get a lot of advice saying I shouldn't get one to use on the track but to be honest I'm not interested in lap times, I'm interested in fun and I have a feeling a Z4M could be quite a tail happy joy.
 
gaffer1986 said:
Really like the look of the Z4M and sitting in it feels better than a Boxster, I get a lot of advice saying I shouldn't get one to use on the track but to be honest I'm not interested in lap times, I'm interested in fun and I have a feeling a Z4M could be quite a tail happy joy.
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It feels nicer to sit in than a boxster and certainly more raw to drive however the boxster is smoother, I know its not but I felt it was more a cruiser. I think you should be listening to those people telling you as out of the box the Z4M is not a great track car. Re the above you will be turfed off most UK tracks if you want to mess around trying to throw an underrsteery car around.
 
Seems to drift ok, although I'm yet to drive one on track so can't say much really.

https://www.youtube.com/watch?v=CWEBw-2D_pE

Has anyone fitted different pedals to help with heel and toe, I sat in one last Saturday and heel and toe felt near impossible.
 
gaffer1986 said:
Do you use the side of your foot then instead of your heel?
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If you are asking questions like this then you don't know how to heal and toe correctly, I have always used half foot on brake and half foot on throttle, suggest you get some instruction. :thumbsup:
 
I beg to differ, been heeling and toeing for 10 years. I make use of whatever part of my foot I can reach the gas with depending on the pedal layout. Although some pedals have the brake too high with the gas too far away which makes it a bit of a stretch. I found this with the Z4M but in the Boxster S and my VX220 heel and toeing was almost telepathic.
 
mattwaltersz4m said:
gaffer1986 said:
Really like the look of the Z4M and sitting in it feels better than a Boxster, I get a lot of advice saying I shouldn't get one to use on the track but to be honest I'm not interested in lap times, I'm interested in fun and I have a feeling a Z4M could be quite a tail happy joy.
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It feels nicer to sit in than a boxster and certainly more raw to drive however the boxster is smoother, I know its not but I felt it was more a cruiser. I think you should be listening to those people telling you as out of the box the Z4M is not a great track car. Re the above you will be turfed off most UK tracks if you want to mess around trying to throw an underrsteery car around.
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Wait till later in the day when things are quieter and I find the Marshalls are OK with sliding as long as you're not silly with it. But granted not always.
 
gaffer1986 said:
Seems to drift ok, although I'm yet to drive one on track so can't say much really.

https://www.youtube.com/watch?v=CWEBw-2D_pE

Has anyone fitted different pedals to help with heel and toe, I sat in one last Saturday and heel and toe felt near impossible.
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I like this clip, great skill to drift at high speed: https://www.youtube.com/watch?v=ZmqZ_80kzOY

The biggest issue I find to heel and toeing in the Z4M is the sensitivity of the brakes. Quite difficult not to end up like a nodding dog due to the high level of assistance. :(
 
I'd happily have a Cayman S, and quite enjoyed the (limited) drives I've managed in a friend's.

Although he's gone for a GT3 for track days (so he can shake me off), and a GT3RS for 'investment' :censored:
 
mattwaltersz4m said:
gaffer1986 said:
The Porsche has this sorted :)
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gaffer1986 said:
I want the Boxster for it's mid engined handling and brakes
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gaffer1986 said:
Boxster seems more serious
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gaffer1986 said:
The more I look into the Boxster S
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gaffer1986 said:
Boxster S
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A theme building, in summary you should buy the boxster :P :D
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Haha, I am heading the Porsche way but for some reason I keep getting the feeling should get a Z4M. I think it's the reliability.
 
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