KAZU Posted December 15, 2001 Share Posted December 15, 2001 Viper caliper with fabricated bracket Mustang Cobra 13 rotor, slip onto the 300zx turbo (87-89) hub Mustang wheel (17-8, 5.7 backspacing) I like the Bullitt's I'm not sure the hub offset is identical to the other 300ZX hub but it can be used if I make the caliper bracket to locate the caliper far outside from the original caliper mounting. Rotor replacing will be more easier than early style. Any suggestion or pros and cons? Yes, I need the coilover kit. I'll place the order somewhere soon. Regards, Kazu Quote Link to comment Share on other sites More sharing options...
Guest scca Posted December 15, 2001 Share Posted December 15, 2001 should work. i tried the cobra R rotors but found they still needed some machine work. that is gonna be one hell of a bracket. also you will NEED to have your struts mounted in a mill and mount the caliper bracket from the opposite side of the mounting ears (most likely) as the front side of the ears is NOT machined on a early Z strut. i had a strut mount made and mounted both struts into it for the milling machine to make a pass at the ears to make them smooth. Quote Link to comment Share on other sites More sharing options...
KAZU Posted December 15, 2001 Author Share Posted December 15, 2001 Thank you for the valuable information. I drew a rough sketch of it. The Cobra rotor outer surface will be located more outside of the 240z hub:-( The other (secret) plan was transplant of whole mustang (SN95) hub support, sturt and coilover conversion. Regards, Kazu Quote Link to comment Share on other sites More sharing options...
Guest scca Posted December 15, 2001 Share Posted December 15, 2001 i wouldnt use the cobra rotors. try using Z32 front rotors instead as they have a hat and offset of at least 2" the cobra is offset less than 1/2". Quote Link to comment Share on other sites More sharing options...
KAZU Posted December 15, 2001 Author Share Posted December 15, 2001 Thanks again! I like your idea. That's the easiest way if the rotor thickness is enough. I'll be thinking the SN95 plan as a future project because it may correct too large king pin inclination angle and positive radius scrub of 240z with wide tires. Regards, Kazu Quote Link to comment Share on other sites More sharing options...
KAZU Posted December 26, 2001 Author Share Posted December 26, 2001 For guys who are considering brake conversion, I made list of rotor dimensions. This is incomplete because no data of 300ZX turbo, 87-89. Also I've heard some of the 300ZX 2nd gen rotor are smaller in thickness. A B C D E F G --------------------------------------------------------- 240 Z S30 70 - 73 F S 271 52 12.7 81 4 260 Z S30 73 - 78 F S 271 43.5 12.7 81 4 280 ZX S130 2/79 - 5/84 F V 250 29 20 81 4 280 ZX S130 2/79 - 8/81 R S 269 69 10 68 4 280 ZX S130 9/81 - 4/84 R S 258 47 10 68 4 300 ZX Z31 84 - 9/85 F V 274 35.5 22 81 4 R S 290 47 10 68 4 300 ZX Z31 9/85 - 89 F V 274 35.5 22 81 5 R S 290 47 10 68 5 300 ZX Z32 89 - 94 F V 280 54 30 68 5 R V 297 64 18 68 5 -------Reference------- Mustang Cobra 94 - 98 F V 330 43.5 28 71 5 R32 GTR 2.6L 6/89 - 8/93 F V 296 54 32 68 5 R32 GTR(v-spec) 8/93 - F V 324 53.75 30 68 5 --------------------------------------------------------- A = Front or Rear B = Solid or Vented C = Rotor Diameter D = Original Height E = Rotor Thickness F = Centre Hole diameter G = No. of Lug Holes | F | -- ---- ---- | | | D --------------------------- -- | | | E -- --------------------------- -- |------- C -------| It is well known that GT-R brakes are interchangeable with 300zx rotors. I took GT-R rotors. Regards, Kazu Quote Link to comment Share on other sites More sharing options...
KAZU Posted December 26, 2001 Author Share Posted December 26, 2001 I'm sorry it can't be read very well. Kazu Quote Link to comment Share on other sites More sharing options...
KAZU Posted January 13, 2002 Author Share Posted January 13, 2002 Update. After measuring the distance between strut ears and 88ZX turbo hub, I found the offset of GT-R rotor is not enough. So I cancelled the order then finally bought Wilwood hats for Pantera and Coleman rotors. The hat offset is 1.38. Rotor thickness is 1.25. With them, the Viper calipers can be mounted by flat brackets and some sims. Regards, Kazu Quote Link to comment Share on other sites More sharing options...
KAZU Posted February 24, 2002 Author Share Posted February 24, 2002 Installation has finished. http://home.earthlink.net/~kazuhix/inj/viperstang.jpg Thank you for valuable information! Regards, KAZU Quote Link to comment Share on other sites More sharing options...
jeromio Posted February 25, 2002 Share Posted February 25, 2002 Hey - off topic, but I really like your lower valence/spoiler. Where'd you get that piece? Those wheels are really nice. Do you have any pics of the brakes w/out wheel mounted? Quote Link to comment Share on other sites More sharing options...
DavyZ Posted February 25, 2002 Share Posted February 25, 2002 The final assembly with the Bullitt wheel looks really tough! Nice work, and thanks for all the info Davy Quote Link to comment Share on other sites More sharing options...
Guest scca Posted February 25, 2002 Share Posted February 25, 2002 saw the pic of the hat on the hub and was wondering what keeps it from going off center? does the inside of the hat fit tight to the OD of the hub? as it looks like the hat can float a bit as the holes are 1/2" for the pantera studs and you are using smaller metric or 7/16". need some more pics of the bullits on the car to see how it looks. saw the one pic but the car is too much sideways to get a good feel for it. http://home.earthlink.net/~kazuhix/inj/my240zmb.jpg if others havent seen it Quote Link to comment Share on other sites More sharing options...
KAZU Posted February 25, 2002 Author Share Posted February 25, 2002 The wheels look so classical, nobody noticed that my z has 17 inches with 13 inch rotors behind them Also, I can live with rear drum brakes for a while because the wheels are in good old motif. jeromio, it was there already when I bought the car. May be the cheapest and smallest one from MSA. It doesn't disturb z's classical look, because lip is so small. Nobody.... BTW I visited your site so often. I got many info from you, thanks. SCCA, that was exactly the headache I had because I don't know who can make hub rings near here. A set of Crager mag nut was sacrificed. The diameter of the nut is slightly larger than the lug hole of the hut so two of five lug holes were enlarged . Then I cut tips 1/4 in from the nuts, screw them onto the two studs of the hub. No wobble but trace shudder under the high speed braking. I'll add some pics. Regards, KAZU Quote Link to comment Share on other sites More sharing options...
nullbound Posted February 26, 2002 Share Posted February 26, 2002 looks great kazu! very classy! i've thought about doing the 5lug conversion, too, for a set of 17" american racing torq-thrust II's. jeromio, that is the 50-1420 from MSA. it is one of the cheapest front spoilers you can buy. very nice and lightweight, too. got one on the car in pic 21 in my photo album. Quote Link to comment Share on other sites More sharing options...
nullbound Posted February 26, 2002 Share Posted February 26, 2002 oh, will you be doing a writeup for your conversion on your site? Quote Link to comment Share on other sites More sharing options...
KAZU Posted February 26, 2002 Author Share Posted February 26, 2002 I've got mail but I can't send mail right now. Here, I'll place some additional info. The hats can be found at www.martelbros.com, or www.wilwood.com The diameter of the lug hole actually is slightly larger than 0.67", listed on their catalog. The reason why I did not buy the Wilwood rotors is that the viper pads would be wider than the friction surface of their rotors. Measurements can be found on those sites. I've found good site to buy rebuilt caipers. www.diskbrakesus.com You can find some 4-pod calipers, such as RX-7, at a reasonable price. Regards, KAZU Quote Link to comment Share on other sites More sharing options...
KAZU Posted March 11, 2002 Author Share Posted March 11, 2002 I'm sorry I found one of the links above was wrong http://www.diskbrakesrus.com Side view of the Bullitt wheels on z. KAZU Quote Link to comment Share on other sites More sharing options...
Guest super280z Posted March 11, 2002 Share Posted March 11, 2002 KAZU, thats looks rad, have you thought about putting a package deal together for all of us non-suspension wise people? Quote Link to comment Share on other sites More sharing options...
KAZU Posted March 11, 2002 Author Share Posted March 11, 2002 have you thought about putting a package deal together for all of us non-suspension wise people? nobody would buy because it would be a little bit pricy calipers $225 (used, ebay) rotors $290 (Coleman racing #D30-125-1300-762) rotor hats $240 (Martelbros, Wilwood #170-0635) '88 300zx turbo hubs $150 (used, zbarn.com) 7075AL t=1/2", 6" x 1' for brackets $75 (McMastercarr) -3AN brake hoses & 10 x 1.0mm inverted flare to -3AN adaptors $40 (Coleman & amstreet rods) bolts, nuts & shims $50 helical insert kit $70 (McMastercarr) KAZU Quote Link to comment Share on other sites More sharing options...
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