Piston dia on std 4-pots?
16 March 2002, 09:02 PM
#2
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BTTT !
Surely there must be someone on here who knows ??
Just wanted to compare the std size to those offered by Hi-spec, Godspeed, AP etc. - is it worth upgrading calipers too ?
Cheers,
Stan
Surely there must be someone on here who knows ??
Just wanted to compare the std size to those offered by Hi-spec, Godspeed, AP etc. - is it worth upgrading calipers too ?
Cheers,
Stan
17 March 2002, 01:06 AM
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Stan, if you really REALY want to know, I'll try and find my 4-pot calipers and measure them.
Yes, upgrading is worthwhile but the Scoob's brake weaknesses are discs first, then pads, and lastly calipers. Unless you're a track day junkie, a good set of discs and pads, retaining the standard calipers, will give you superb braking.
Godspeed or Pagid discs seem the best/best value, with pads of your choice.
Richard.
PS Why is everyone so obsessed with calipers? It's the discs that do the real work.
Yes, upgrading is worthwhile but the Scoob's brake weaknesses are discs first, then pads, and lastly calipers. Unless you're a track day junkie, a good set of discs and pads, retaining the standard calipers, will give you superb braking.
Godspeed or Pagid discs seem the best/best value, with pads of your choice.
Richard.
PS Why is everyone so obsessed with calipers? It's the discs that do the real work.
17 March 2002, 05:11 PM
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Cheers Hoppy.
I was interested in the areas so I could see the relative difference in force applied to the pads. If its minimal then I'll just go for a 335mm disc upgrade and sell the EBC 292mm grooved(and STI std 292mm set collecting dust in the garage).
Stan
I was interested in the areas so I could see the relative difference in force applied to the pads. If its minimal then I'll just go for a 335mm disc upgrade and sell the EBC 292mm grooved(and STI std 292mm set collecting dust in the garage).
Stan
17 March 2002, 05:25 PM
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just to put a spanner in the works I don't think you can measure the true piston diameter with out taking the caliper apart.If I remember correctly the exposed part of the piston is a smaller diameter due to the recess for the dust seals.
Andy
Andy
18 March 2002, 08:57 AM
#6
You can measure the pistons by pulling the outer piston seal and measure across them , I do not have any here to measure myself , I will check later and let you know , At the end of the day it is as Hoppy says the discs and pads that make the most difference to the brakes , a calipers is a caliper , the AP are lighter , and will dissipate heat quicker and look nicer ,which may give you more benefit on the track , If you have the Subaru four pots with say our 335mm disc kit , they will work as good as the AP 330mm kit , we have tried them side by side and found no difference in braking power , Our 335mm kit uses bigger pads than both the standard setup and the AP kit ,
Hope this is of some help , Ian
Hope this is of some help , Ian
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