Phantom Posted July 1, 2004 Share Posted July 1, 2004 Well - I'm taking the big plunge and ordered the adapters today to upgrade the brakes on the 280Z28. After a long and painful search and deliberation cycle I have opted to get the 240SX/300ZX rear disk upgrade from Modern-Motorsports and the JSK Innovations Willwood upgrade for the front. I would have preffered to have had mfg. matching brakes front and rear but this is the only combination that matched my criteria: 1) Most brake for the price, 2) Availability of spare parts, 3) Concerns about the Modern-Motorports big brake upgrade fitting my particular set of 16" wheels, and 4) Keep the e-brake. I still have tow or three decisions to make: 1) The Willwood Superlite IIA's have been replaced by the Superlite forged series. The IIA's are still available at a really good price though http://www.pitstopusa.com but the forged series are supposed to handle peak heat situations better (like me running out at Texas Motor Speedway). 2) Do I upgrade to the 79-81ZX 15/16" Master cylinder or stick with my 7/8". 3) Do I install a proportioning valve. This will be answered after I install the brakes and can evaluate the front-rear balance. Quote Link to comment Share on other sites More sharing options...
Brad-ManQ45 Posted July 2, 2004 Share Posted July 2, 2004 Go eith the bigger M/C. Put the proportioning valve in when you swap the M/C. You WILL need to adjust it - nothing ever works perfectly when mixing parts....to believe otherwise is JPF. Quote Link to comment Share on other sites More sharing options...
Savage42 Posted July 2, 2004 Share Posted July 2, 2004 I even talked to a tech at Wilwwod and asked him for the right combo for front & rear calipers. After getting all the numbers, he says it should be so close that I shouldn't need a proportioning valve. A few days later, I emailed Wilwood with all the info he gave me to verify everything. The reply (probably from another tech) said "Looks like a great setup. I would still put in a proportioning valve, just in case and you'll won't have to bleed the brakes to put it in later". Funny, even the guys "in the know" have different perspectives. I figure that I might as well put one it. Also allows you to adjust for wet conditions, on & off the track. (not saying that's an issue for most, but might be with me) Road courses are hairy in the rain!! Quote Link to comment Share on other sites More sharing options...
Guest the_dj Posted July 6, 2004 Share Posted July 6, 2004 280Z28. That's my user name on almost every other forum I'm registered at. I asked for mine here to be changed to that but I never got a reply. I came to this forum looking for brake upgrade information and for some reason your topic caught my attention. Quote Link to comment Share on other sites More sharing options...
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