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Drag 15'' Rims Need Help With Offset

T88 ON BOARD
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T88 ON BOARD Mentor

T88 ON BOARD

Posted
Posted

Hey all,

I have spoken to a few people about running 15'' Drag rims on my GT-R R32.....they have all said its a hard process to get the right offset! I have seen many drag GT-R's running 15'' rims so its not impossible...

Is there anyone out there that can help me out here? is it possible to order the Drag rims with the offset i require? saving me the hassle of trial and error? If anyone has been through the convertion i would love to hear what you gotta say :thumbsup:

I honestly dont know much about this subject as you can tell...I really need some help here!

Any ideas?

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https://www.sau.com.au/forums/topic/215394-drag-15-rims-need-help-with-offset/
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Jmaac Proficient

Jmaac

Posted
Posted

As long as your are prepared to put on spacers there should be no probs. They are illegal however

R32 GTR is a +30offset if that helps

You should be able go stock R32 GTST rims with a spacer (if u want cheap)

T88 ON BOARD Mentor

T88 ON BOARD

Posted
  • Author
Posted
As long as your are prepared to put on spacers there should be no probs. They are illegal however

R32 GTR is a +30offset if that helps

You should be able go stock R32 GTST rims with a spacer (if u want cheap)

Its for a Drag GT-R so wanna run the 15'' rims

others?

nisskid Grand Master

nisskid

Posted
Posted

sorry for my inexperience on the subject of drag, but do the rims need to be anything special to be a drag rim? as in are they typically made different from a normal road or circuit wheel?

as far as getting some wheels, most decent jap wheel manufacturers would make a 15x8-10ish (not sure what tyre u intend on running) as far as offset goes, a +30 should be alright, depending on the size of the tyre u intend on running, id be slightly worried about the tie rod end for the HICAS at the rear and the clearance there with a bigger wheel/tyre. but the most important part is disk type, you need to make sure (especially for the front) that u get a high disk, this will clear the calipers. as far as disk diametre goes, well i think a 15" at the front would be pushing it, but if uve seen others get away with it on stock disks then should be fine, just make sure u order a high disk and it should clear ur calipers. the main issue with most 15" wheels is they are made for cars with pretty much always have tiny brakes, so they often are a low disk and dont have much caliper clearance.

T88 ON BOARD Mentor

T88 ON BOARD

Posted
  • Author
Posted

Hey nisskid Does this mean if i buy a 15 ''drag rim that has a offset off between 0 and +10 all i have to do is run spacer plates to make it around +30?

about the brakes if i come across fitment problems i will run smaller brakes etc...

nisskid Grand Master

nisskid

Posted
Posted
Hey nisskid Does this mean if i buy a 15 ''drag rim that has a offset off between 0 and +10 all i have to do is run spacer plates to make it around +30?

about the brakes if i come across fitment problems i will run smaller brakes etc...

nah, it actually works the other way, spacers will reduce your offset, for instance a +20 offset with a 30mm spacer will make the offset effectively -10 offset. theres a few types of spacers, theres floating (slip on) spacers which just sit over the studs, these are usually used for <10mm applications as it reduces the usable length of the stud. then theres a bolt on spacer, these are usually >20mm, this would be ur best bet, finding a high offset wheel is easy as piss, especially with a 15" wheel, so you could get say a +45 (common offset) wheel and put a 25mm bolt on spacer making it around +20, then at least you dont have to worry about disk type etc as u know there will be probably be at least around 40mm of brake clearance, which should be enough for GTR calipers.

NXTIME Grand Master

NXTIME

Posted
Posted

What size slicks do you want to run? That will determine the width of the wheel and then the offset required. The only issue with 15" wheels might be the brake clearance. Some wheel manufacturers can overcome this with different dish designs.

  • 1 month later...
nisskid Grand Master

nisskid

Posted
Posted
You need 5.5" backspace 15x8" with 26 or 28 x 11.5 x 15 Mickey Thompson Et Street

Rear gtr r32 brakes isn't problem but the front sure it is big problem with 15"! You must use front brakes from 180sx S13 with redrilled disks :wub:

f**k thats a scary thought lol

GreeceS13 Rising Star

GreeceS13

Posted
Posted

The owner have it for DRAG use!! :wub:

The brakes from s13 fits with only a redrill on the discs because s13 is 4x114.3 and skyline 5x114.3, there are two generations.. 280mm and 256mm both will fit in 15" wheels easy!! But maybe you will need s13 rear brakes too to keep the right brake bias! For drag use you will not have any problem!! :/ Also they are lighter ;)

  • 8 years later...
Hiroshima Screamer Grand Master

Hiroshima Screamer

Posted
Posted

apologies on the dig up, saves me from posting the same question twice more or less...

I also too am in interested in running a set of drag rims on my R33 GTR , can anyone else she light on what size and backspace i'd need?

  • 4 months later...

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