cjr198car Posted May 4, 2011 Report Share Posted May 4, 2011 240/260/280Z toyota caliper upgrade. I used this on my 510. See my last post for the finished product. -Colton Quote Link to comment
DISLEXICDIME Posted May 4, 2011 Report Share Posted May 4, 2011 wouldn't brake fade be a issue with the solid rotors? Quote Link to comment
thisismatt Posted May 4, 2011 Report Share Posted May 4, 2011 Or use 280zx or s12 200sx struts and be ahead already with vented rotors. The bolt size is referring, I believe, to the shoulder size on the rotor fixing bolts (that you attach the rotor to the back of the hub with). They're probably the same thread, you'd just need to use the bolts from whatever rotor you're using. Quote Link to comment
datzenmike Posted May 4, 2011 Report Share Posted May 4, 2011 Brake fade can be a problem if racing or extreme canyon carving where the rotor can't shed the heat faster than it's made. A hot rotor is fine but heat will be transferred to the caliper and then it can boil the fluid and cause the brake fade. Brake fade is very rare as the type of driving that causes it is seldom seen on the street. If these rotors work on a 6 cylinder, and I'm guessing here, 2,800 pound car, how much harder would you have to drive a 2,100 pound 510 to get brake fade? A vented rotor would run cooler and give even more resistance to fade but are likely heavier (and with a larger caliper) and would add to the unsprung weight. I have the 4 piston Toyota calipers and single rotor from an early 4x4 on my 620. I have done several back to back high speed stops and they work very, very well. Oh yeah, the truck weighs 3,600 pounds now. Quote Link to comment
thisismatt Posted May 4, 2011 Report Share Posted May 4, 2011 Brake fade can be a problem if racing or extreme canyon carving where the rotor can't shed the heat faster than it's made. A hot rotor is fine but heat will be transferred to the caliper and then it can boil the fluid and cause the brake fade. Brake fade is very rare as the type of driving that causes it is seldom seen on the street. If these rotors work on a 6 cylinder, and I'm guessing here, 2,800 pound car, how much harder would you have to drive a 2,100 pound 510 to get brake fade? A vented rotor would run cooler and give even more resistance to fade but are likely heavier (and with a larger caliper) and would add to the unsprung weight. I have the 4 piston Toyota calipers and single rotor from an early 4x4 on my 620. I have done several back to back high speed stops and they work very, very well. Oh yeah, the truck weighs 3,600 pounds now. I can't imagine the yota 4 pot calipers weighing less than the 280zx, but I could be wrong. I know they're heavy, though. Quote Link to comment
datzenmike Posted May 4, 2011 Report Share Posted May 4, 2011 I can't imagine the yota 4 pot calipers weighing less than the 280zx, but I could be wrong. I know they're heavy, though. Oh they are big alright but instead of one big piston on one side you have two pair for even clamping. Only meant that a single rotor would be lighter than a vented. Quote Link to comment
DottiBlue Posted May 4, 2011 Report Share Posted May 4, 2011 I think the slotting and drilling will also help dissipate heat and weight in addition to the larger 10.62 inch size. FWIW You want to be careful with drilling rotors. Under hard braking, and excessive heat, you can crack the rotor because of all the holes that are drilled in it. Race cars will run slotted, but not cross drilled rotors. Quote Link to comment
Sinnful Posted May 4, 2011 Report Share Posted May 4, 2011 I'm running S12 200SX struts but they are the 87-88 V6 ones. then to keep 4 lug I got 85 300ZX hubs and rotors and then got some Z32 4 piston calipers (the aluminum ones ) Quote Link to comment
qwik510 Posted May 4, 2011 Report Share Posted May 4, 2011 I know that the toyota calipers (s12w) are a popular upgrade for the 240Z. The calipers are very heavy though. Check out www.hybridz.org and do a search for the upgrade. Lots of good info there. Quote Link to comment
sssr20det510 Posted May 4, 2011 Report Share Posted May 4, 2011 I answered my question: (I found this on the realm) the steering knuckle bolts are aligned differently from the 280zx. [/b]" the steering knuckle bolts are the same as zx, the hole is however bigger, s12 v6 struts have a 100 mm bolt spacing between the caliper bolts same as z32 Quote Link to comment
izzo Posted May 4, 2011 Report Share Posted May 4, 2011 I had some serious brake fade issues in my 81 510 wagon. But i rallied the PISS out of that thing down the backroads in Rainier oregon... Quote Link to comment
cjr198car Posted May 6, 2011 Author Report Share Posted May 6, 2011 Starting the brake upgrade, 4 piston calipers, 15/16 brake master cylinder. In other news I will also be upgrading the outer stub axles to these 27 spline units from a 1976 280Z. Quote Link to comment
cjr198car Posted May 30, 2011 Author Report Share Posted May 30, 2011 Finished the upgrade. Not certain on all of the components I have, but I ended up using 240Z slotted and drilled rotors (so I must have a 240Z hub, but not certain on the spindle), 280ZX tokico illumina strut inserts (I may have a 200sx/810/280zx strut, but I doubt 280zx or else I would have vented rotors), 1979 toyota 4 pot calipers, stainless steel braided lines, and swift 280lb springs. Had a few issues with piecing everything together, but its together! -Colton Quote Link to comment
Shagy Posted May 31, 2011 Report Share Posted May 31, 2011 the steering knuckle bolts are the same as zx, the hole is however bigger, s12 v6 struts have a 100 mm bolt spacing between the caliper bolts same as z32 http://i396.photobucket.com/albums/pp41/sssr20det510/d2c76232.jpg http://i396.photobucket.com/albums/pp41/sssr20det510/41bdb5ef.jpg I want to do a 5 lug swap badly. I searched here but did not find much information. Quote Link to comment
Sinnful Posted May 31, 2011 Report Share Posted May 31, 2011 I want to do a 5 lug swap badly. I searched here but did not find much information. The keeper has a set of the S12 struts that you want then, they already have coil overs on them Quote Link to comment
Unclejesse88 Posted June 1, 2011 Report Share Posted June 1, 2011 The late model Toyota 4x4 calipers, 86-95, are wider to accommodate a vented rotor. Caliper bolt spacing is the same. You would just have to find a rotor to work with it. If I recall correctly, this setup requires the struts to be installed on the opposite sides to avoid tie rod interference. Quote Link to comment
PurePontiacKid Posted June 7, 2011 Report Share Posted June 7, 2011 Finished the upgrade. Not certain on all of the components I have, but I ended up using 240Z slotted and drilled rotors (so I must have a 240Z hub, but not certain on the spindle), 280ZX tokico illumina strut inserts (I may have a 200sx/810/280zx strut, but I doubt 280zx or else I would have vented rotors), 1979 toyota 4 pot calipers, stainless steel braided lines, and swift 280lb springs. Had a few issues with piecing everything together, but its together! http://farm4.static.flickr.com/3212/5774654820_b9a21fc63b_z.jpg[/img http://farm6.static.flickr.com/5063/5774655006_b7c71defbb_z.jpg[/img http://farm4.static.flickr.com/3306/5774654934_97963225cf_z.jpg[/img -Colton now... since you used 240Z rotors and hubs and possibly struts, wouldn't it be possible to use the Z31 vented rotor, rotor spacer and vented calipers that the 240Z guys do? that way you would probably never ever have to worry about brake fade! haha I'm kind of disappointed at the use of Illumina's though :/ Quote Link to comment
cjr198car Posted June 7, 2011 Author Report Share Posted June 7, 2011 Ian, I can do the vented upgrade, but Im not certain the caliper will fit under my wheel (they protrude out a ton, and a spacer on my front wheel to make clearance is a no go. I also didnt like the idea of having to buy the rotor spacers for a $100). I had illuminas before and I wasnt unhappy. I also got a great deal on the new ones I purchased. So yeah, could of went more badass on the whole setup, but budget dictated my brake upgrade/strut rebuild and I think I made the best with what I had to work with. -Colton pics on the car: Quote Link to comment
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