d3c0y Posted February 10, 2012 Share Posted February 10, 2012 I guess it really depends on how low you are running the car really and having stiffer springs will help you out as it wont hit the top of the guard like mine currently does . Are you saying you run stiffer than 400# springs in your racecar? I think with my current wheels i would be able to just clear 235s, but as you say you have modified camber settings so i'm probably running more -ve camaber than you. You could always shorten your lower control arms a bit? That would move it in the couple of mm you would need. Alternatively you could run an 8.5 rim and put a bit more stretch on the tyre, but again it all depends on how low your ride height is. Quote Link to comment Share on other sites More sharing options...
NZeder Posted February 10, 2012 Share Posted February 10, 2012 Are you saying you run stiffer than 400# springs in your racecar? Well I will be, the fast zed's here in NZ run a bit more than 400# thats for sure. My car was purchased as set for targa so 375# progressive rears and 450# progressive fronts and that is for targa. For a circuit car we don't run progressive springs and start at 400-450# in the rear and more in the front but only on cars with strut to strut cages. But it is very rare to see a rear anti-sway bar on the back of a zed here in NZ too Quote Link to comment Share on other sites More sharing options...
d3c0y Posted February 10, 2012 Share Posted February 10, 2012 Looks like i better start fabbing up some half decent strut bars then haha. Quote Link to comment Share on other sites More sharing options...
260z.76 Posted February 16, 2012 Share Posted February 16, 2012 Hiiv desided im going to buy rota rb 17x8.5 +4 and run a 225 tire Will these fit under a 76 2+2 with a 1.5" lowering or will the guards need rolling?? Thanks heaps Quote Link to comment Share on other sites More sharing options...
d3c0y Posted February 17, 2012 Share Posted February 17, 2012 1) Have you read any of this thread? 2) Did you bother searching anywhere? http://forums.hybridz.org/index.php/topic/103675-rota-rb-r-17x85-4-offset-what-size-tires/ Why is everyone so lazy? Quote Link to comment Share on other sites More sharing options...
260z.76 Posted February 17, 2012 Share Posted February 17, 2012 Yes i did search and that is for a 240z with coilovers an not a 2+2 with stock suspention Quote Link to comment Share on other sites More sharing options...
NZeder Posted February 17, 2012 Share Posted February 17, 2012 I have posted the answer in there before. Stock suspension max back space is approx 4.5" aka 8" rim with a 0 offset. The 0 offset on the rear of a 2 seater car (ie 240z, 260z 2 seater) requires either lots of negative camber and or guard rolling. The 2+2 have a little more room in the lip department so they should work (I say should as I have never owned a Bus aka 2+2) So 8.5 +4 will work with coilovers and lip work as stated on that thread on hybridz - be it 240z or 260z 2 seater or 2+2 as 8.5 +4 = 4.9" backspace = will hit the spring perches on either 240z or 260z = game over for stock suspension forget about that lip/guards My old red 240z had 16x9 -7 with stock 240z spring perches (not stock springs or inserts) and they worked with lip/guard work and a 225/45/15 type. However this same setup which as 4.7" of back space did not work on 260z with the lower front spring perches so I can say 100% that 4.5" works on the front of a 55mm strut (aka 260z strut) but the 4.7" does not that is how close it is. So at 4.9" game over .2" aka 5mm too much upfront. These rims should work in the rear fine - it will be upfront you have issues. However you could run a stock 10mm spacer up front and it might work if the guards are rolled on the front. However this is just by calcs so only why to know for sure is if someone has done it already. Quote Link to comment Share on other sites More sharing options...
zzzzed Posted February 17, 2012 Share Posted February 17, 2012 Is it common with the Rota rbx that with the front rims, the center caps don't fit over the bering caps. ? Quote Link to comment Share on other sites More sharing options...
NZeder Posted February 17, 2012 Share Posted February 17, 2012 Is it common with the Rota rbx that with the front rims, the center caps don't fit over the bering caps. ? correct they don't Quote Link to comment Share on other sites More sharing options...
zzzzed Posted February 17, 2012 Share Posted February 17, 2012 Oh cool. I feel normal again Quote Link to comment Share on other sites More sharing options...
260z.76 Posted February 17, 2012 Share Posted February 17, 2012 Nzeder are you saying if i roll the guards and get 10mm Spacers ill fit 8.5+4 will fit all round Quote Link to comment Share on other sites More sharing options...
NZeder Posted February 18, 2012 Share Posted February 18, 2012 Nzeder are you saying if i roll the guards and get 10mm Spacers ill fit 8.5+4 will fit all round They might fit.....a 8.5 +4 with a 10mm spacer on the front of a 260z with rolled guards on the front is the same as a 8.5 -6 right. +4 and +10 space makes -6 (I know + + = - WTF - but a +4 is 4mm more inwards from so a 10mm spacer will effectively the same as a -6 offset rim) So that in mind - there is a pic of my 260z with a stock spring perches (no springs block of wood to simulate fully compressed suspension) a 16x8.5 -6 and a 225/50/16 rubber. Now my front guard at this time had a bit of round tacked on to the lip and the lip was then bent around this wire to keep strength in the guard after this rolling. And the same rim on Dad's old S31 (aka 260z shell but actually a Fairlady Z with L20E power) - this car was stock suspension, guards you can see the rim is very close to the spring perch and a 8.5" -6 rim has 4.5" backspace so that is why I stay a 4.5" backspace is the max you can fit on a 260z with stock spring perches. Quote Link to comment Share on other sites More sharing options...
NZeder Posted March 3, 2012 Share Posted March 3, 2012 Well for us boys in NZ anyway...An order has gone up to Rota for RK-R 15x8 +10 they will be in NZ in approx 8-9 weeks. So I will get pics then Cheers Mike Quote Link to comment Share on other sites More sharing options...
d3c0y Posted March 4, 2012 Share Posted March 4, 2012 Sweet cant wait to see what they look like! What colour scheme did you get? Quote Link to comment Share on other sites More sharing options...
NZeder Posted March 5, 2012 Share Posted March 5, 2012 Sweet cant wait to see what they look like! What colour scheme did you get? Well as the min order is 40 items aka 10 sets of rims we kept the colour choice simple and either flat black or royal flat Gunmetal Here is sample colours 15x8 ET0 aka +0 Offset shown. Quote Link to comment Share on other sites More sharing options...
Tj Posted May 3, 2012 Share Posted May 3, 2012 Is the RB available in a 15X9 in a negative offset such as -10 like the Shakotan is? Or do I need to go up to the 17" RBX? Quote Link to comment Share on other sites More sharing options...
d3c0y Posted May 3, 2012 Share Posted May 3, 2012 Only the 17" RB-X Quote Link to comment Share on other sites More sharing options...
Tj Posted May 3, 2012 Share Posted May 3, 2012 Thanks for that. Not a big issue, they don't seem to be any more difficult to fit and they don't look too dissimilar. Did I read correct somewhere that there's an issue with them clearing the bearing cap on the front hubs? Quote Link to comment Share on other sites More sharing options...
d3c0y Posted May 3, 2012 Share Posted May 3, 2012 that's only the clip in center caps that dont fit over the bearing covers. 17" tyres are cheaper and you can run bigger brakes too. If you want 15" Watanabe R-Type are the go they go well over 10" in that size. Quote Link to comment Share on other sites More sharing options...
dat2kman Posted May 3, 2012 Share Posted May 3, 2012 Hmm, trawled back through the 7 pages on this thread,, umm, Who can give me info on what they know or have seen of rims of an "older"style, ie Watas, Longchamps, etc that are around a 15 x 10", yes 10" wide, with around a 0 offsett? Reason, my Historic Datsun racecar, has the pissibility of being CAMS permitted to upgrade to a 15x10 and to runn full slicks. I have thrown on some 15x10 with a Neg 26 offsett, the outer protrudes past flares unacceptably, and thete is not enough "meat" on the back side/hubface of the rim to pull it back the 25 to 30 mm it needs. Who has seen what??? Other option is to go for three piece customs,,, pricey option for just a few meetings a year Quote Link to comment Share on other sites More sharing options...
d3c0y Posted May 3, 2012 Share Posted May 3, 2012 Weird offset to be running on such a big wheel on a RWD offset car. I'll keep an eye out on yahoo auctions for you Jason. Quote Link to comment Share on other sites More sharing options...
dat2kman Posted May 3, 2012 Share Posted May 3, 2012 Ta Jake, it's for the little red car with the wide flares. Those 15 x10 Supalites you got from me, stuck out too far, they do a Chalkenger, same stick out, cant machine it back enuf. If i can get a 0 or a slight plus say 10 or 15, i can play with slip ons, or machine backside a bit. Currently the car is in up to 1969 CAMS spec, but i can now apply for up to 1981 spec, it ran the 10's in mid 1970's! With the usual lw profile Dunlop/Avon slick Four matching in 4 stud 114.3 datsun toyota etc Quote Link to comment Share on other sites More sharing options...
Tj Posted May 3, 2012 Share Posted May 3, 2012 that's only the clip in center caps that dont fit over the bearing covers. 17" tyres are cheaper and you can run bigger brakes too. If you want 15" Watanabe R-Type are the go they go well over 10" in that size. Oh cool. I must have misread that. Thanks for the clarification Quote Link to comment Share on other sites More sharing options...
d3c0y Posted May 4, 2012 Share Posted May 4, 2012 Those 15 x10 Supalites you got from me, stuck out too far, they do a Chalkenger, same stick out, cant machine it back enuf. Ha i havent bought any wheels from you Quote Link to comment Share on other sites More sharing options...
dat2kman Posted May 4, 2012 Share Posted May 4, 2012 Ha i havent bought any wheels from you My brain hurts, i thought about two year ago you did, or, someone from the Goldy did, gggrrr, cant remember! There is a user on secretdrift lives near me, got a pair of Rota Grids 15x8 0 offset in gold for sale at $300, just a pair name is savagenate, if anyone interested i could get rhem for you. He also selling set of Longchamps 15x9 15x7 at $1600 What are these really rhat special? If the Longchamps were around 600 the set, i'd grab them and get the 7" pair widened. Quote Link to comment Share on other sites More sharing options...
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