Synlubes Posted February 27, 2003 Share Posted February 27, 2003 Anyone looked in to 2nd gen Mazda RX7 calipers? The frts are made by same manufactuer and aluminium. Are the mounting tabs in the same location as the stock Z (early model)? Are they any bigger than say Toyota`s (non vented) front calipers? The rears are vented with Ebrake. ??? Quote Link to comment Share on other sites More sharing options...
Guest zline Posted February 27, 2003 Share Posted February 27, 2003 Anyone looked in to 2nd gen Mazda RX7 calipers?The frts are made by same manufactuer and aluminium. Are the mounting tabs in the same location as the stock Z (early model)? Are they any bigger than say Toyota`s (non vented) front calipers? The rears are vented with Ebrake. ??? I'm not to sure about the mounting tabs but they should be close, the Turbo II calipers are HUGE so go after those ones not the GSL/X/GTU models. The problem with a turbo ii caliper however would be it came from a 5x114.3 pcd wheel. Quote Link to comment Share on other sites More sharing options...
Synlubes Posted February 27, 2003 Author Share Posted February 27, 2003 Hey zline, When you say TurboII, are you talking about just a 2nd gen turbo RX7 or are there diferent favors of these things? I`m going 5 lug so that not an issue, neigher is rotor size. It`s going to be a custom job with what ever brakes are put on the car. Quote Link to comment Share on other sites More sharing options...
Guest zline Posted February 27, 2003 Share Posted February 27, 2003 Hey zline' date='When you say TurboII, are you talking about just a 2nd gen turbo RX7 or are there diferent favors of these things? I`m going 5 lug so that not an issue, neigher is rotor size. It`s going to be a custom job with what ever brakes are put on the car.[/quote'] Yeah Turbo II was just the name of the FC body turbo RX7s...I'd use that caliper...its gargantuan, not to mention vented =) the rears use the ebrake but you'll need to extend the cable because its pretty short they way they have it set up, shouldnt be to hard though. Great caliper choice, I'd run a 12.1" rotor vented with those calipers, theyve got enough bite, and some endless carbon pads. Why not use Z32 Turbo calipers? they're 30mm and are aluminum...? Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted February 27, 2003 Share Posted February 27, 2003 hey man dont knock the non turbo models brakes.. there pretty big also, and will stop a old Z like nothing. plus can be had cheaper and found in any junk yard. mike Quote Link to comment Share on other sites More sharing options...
Trevor Posted February 27, 2003 Share Posted February 27, 2003 It's been done on a Datsun 510. Assuming you have a vented rotor in mind. [/url]http://dimequarterly.tierranet.com/pictures/Graeme_Suckling.htmlhttp:// Note the big adaptor plate to span between the Nissan strut lugs which are about 3.5" apart, and the Mazda caliper lugs, which are about 6.25" apart. If you are fitting a small enough rotor, the 4 holes can be in a straight line. I've mocked this up with a 300ZX 11" rotor, and the caliper needs to ride out about 1/2", making a bigger ( and presumed less rigid) adaptor plate. Quote Link to comment Share on other sites More sharing options...
Guest zline Posted March 1, 2003 Share Posted March 1, 2003 hey man dont knock the non turbo models brakes..there pretty big also' date=' and will stop a old Z like nothing. plus can be had cheaper and found in any junk yard. mike[/quote'] im not knockin em im sayin the turbo one is just bigger and if I was plannin on doin this swap i'd use the larger if i had the choice...i mean why not? http://www.mazdarecycling.com for the parts or http://www.fc3s.org Quote Link to comment Share on other sites More sharing options...
blueovalz Posted March 1, 2003 Share Posted March 1, 2003 I checked into these at one time. My goal was to increase the total piston area on the front calipers (I was using the front 280ZX calipers with the 300ZX rotors at this time) for improved clamping force. I found that the two pistons on these calipers had a smaller total piston area than the single piston on the ZX calipers. As nice as they were, I felt that it would have be a down-grade for what I wanted. The biasing (F/R) was at the minimum limit on my car at the time, and I could not afford to lose any more clamping force on the front, so this would have hurt me. Being the ZX piston is slightly larger than the Z piston, this caliper may be a good mod for those wishing to improve the front brakes cheaply. Quote Link to comment Share on other sites More sharing options...
Synlubes Posted March 1, 2003 Author Share Posted March 1, 2003 I found that the two pistons on these calipers had a smaller total piston area than the single piston on the ZX calipers. Terry, I may have missed something here. Are you saying that 2 of the 4 pistons are smaller than the 1 ZX piston. Or, that all 4 pistons combind are smaller than the 1 ZX piston. These are 4 piston calipers. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted March 1, 2003 Share Posted March 1, 2003 It is often misunderstood in that total piston areas between floater and non-floater calipers is like comparing apples to oranges (unless you only use one side of the non-floaters). Example: Just suppose that the ZX floating calipers had a piston that was the exact same diameter as the OEM Z (non-floating) calipers. These two designs impart the same pressure onto the sides of the rotor. The volume of fluid (single stroke of the brake pedal) used to decrease the distance between the two pistons (rotor width) on the Z caliper is the same volume of fluid used to decrease the distance between the floating piston and opposite side frame on the ZX caliper. Let us suppose that you were to weld one side of the Z caliper (piston in place so it could not move) so that only one of it's two pistons operates freely. Then the free piston would double it's movement with the same amount of fluid use (single stroke of the brake pedal) than it did before, but with the opposite side piston welded in place, it cannot move, and therefore, the decreased distance between the two is back to the original amount for the single stroke of the brake pedal when both pistons were free. But because this caliper is a non-floater, only one side of the rotor is affected. OK, now let this caliper float so that when the free piston hits the rotor face, the piston movement now is transfered to pulling the rest of the frame (welded piston) or caliper into the other side of the rotor. This is the concept of the floating caliper. To compare piston area of floater to non-floater, you must only use ONE side of the non-floating piston area measurements when comparing it to a floating caliper piston area. Quote Link to comment Share on other sites More sharing options...
Synlubes Posted March 1, 2003 Author Share Posted March 1, 2003 So Terry, What you are saying is..... just kidding Thanks, for the examples I get it. Quote Link to comment Share on other sites More sharing options...
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