Editing Brake pads (section)

==Porterfield==
===R4===
[[File:porterf.jpg|1000px|thumb|Porterfield brake pad temperature friction overview]]
Carbon kevlar brake pads for the Elise R4 race compound. The R4 is Porterfield's motorsport pad for the Elise.<br>
Purpose(street/track/both): Track<br>
Coefficient of Friction: .5+ <br>
Material: Carbon Kevlar<br>
Bed in: "limited bedding procedure"<br>
Dusting: ?<br>
Pad Wear: ?<br>
Rotor Wear: "rotor life extended"<br>
Noise: ?<br>
Max operating Temp: "450F and above" <br>

===R4-1===
Vintage Compound. high friction racing material has grown to be a very popular choice for drivers who need the highest possible friction with a low pad temperature. Developed and tested in the vintage racing community
===R4-S===
Carbon kevlar brake pads for the EliseR4-S high-performance street compound. The R4-S is Porterfield's street-friendly version of their popular race pad.<br>
Purpose(street/track/both): Performance Street*<br>
Coefficient of Friction: .4<br>
Material: Carbon Kevlar<br>
Bed in: "limited bedding procedure"<br>
Dusting: Low<br>
Pad Wear: Good<br>
Rotor Wear: Low<br>
Noise: Little to none<br>
Max operating Temp: 1100 F<br>
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*My own experience: These work very well on street AND Track (While it says 'NOT FOR TRACK USE')*. Not much dust or noise. When cold they feel wooden when hard braking, normal daily driving you will not notice this.<br>
At trackday I measured 200C and experienced no fading entire day. After two trackdays the disc (still original) had 1mm rubbed off. When (really) pushed had they can ate my oem discs.<br>
After 5 trackdays rear have ~2mm left. I like these pads. You can really lean on them on track and perform well on public road.<br>
/*Website has changed since I bought these 5 years ago. It used to say it was track&street with street bias. Later it was updated that USA site said 'street use only' and UK site said 'track use only'. Now all sites state street use only.

===R-4E===
Endurance Race. A Carbon Kevlar compound made to last a bit longer than the original R-4 compound.
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Manufacturer website: http://www.porterfield-brakes.com/<br>
Where to buy (USA): https://www.blackwatchracing.com/SearchResults.asp?Search=porterfield <br>
UK Shop website: https://www.porterfieldbrakes.co.uk/applications/?ppf_year=2008&ppf_make=LOTUS&ppf_model=Elise<br>