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dave91
Joined: Sun Mar 27, 2011 11:37 pm Posts: 411 Location: Brisbane
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 Posted: Sun May 01, 2011 11:29 pm |
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hey guys I'm trying to decide if I should get 31's or use my dad's spare 33 bighorns, not sure what size, but they are fat bastards. Looking at a coily zook with 2' susp lift. I'd be putting a body lift in too and doing the tfer case. what is offset..? Is it a camber or spacers or anything along those lines? I'd also need wheels (king wheels?)
Cheers
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SierraDan

az supporter
Joined: Fri Feb 04, 2011 10:55 pm Posts: 9347 Location: Newcastle
Vehicle: G13BB Jimny
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 Posted: Sun May 01, 2011 11:36 pm |
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I'd go 31's. Either on a 15x8 rim with a -23 through to -28.
Or as some guys on here like a 15x7 rim on an equivalent offset.
_________________ mlm
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Sun May 01, 2011 11:38 pm |
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I like as big as possible, if you can 33s.
Offset refers to the wheels, and how far from the centerline they are, big wide tyres need big offset generally.
What are your plans for the Tcase
_________________ Bad decisions make good stories.
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Sun May 01, 2011 11:39 pm |
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Just saw, your in Qld, if this is to be on the road, I don't think you can run 31s even.
_________________ Bad decisions make good stories.
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Sun May 01, 2011 11:43 pm |
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You can run any size tire in qld it's just cop bait nd illegal
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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Rusho

Tubby Elfsdong
Joined: Sun Aug 02, 2009 11:30 pm Posts: 6501 Location: Northside, Brisbane
Vehicle: Coily Sierra
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 Posted: Mon May 02, 2011 12:55 am |
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SuziBlu wrote: Just saw, your in Qld, if this is to be on the road, I don't think you can run 31s even.
I have 30's and they are illegal....I think technically a 29 is illegal  I don't like your chances getting a coily front end holding up to 33's if you are going to wheel the shit out of it. The 1.3 might not be a big fan of pushing them around either
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 12998 Location: Melbourne
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 Posted: Mon May 02, 2011 1:05 am |
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Stay with 31's. Going up to 33's with make the job eleventybillionX harder - Gearing, axle strength, clearance all get much harder to resolve. 31's are sweet on a coiler with a 2" BL and a gear drive transfer with 4:1 gears.
Steve.
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dave91
Joined: Sun Mar 27, 2011 11:37 pm Posts: 411 Location: Brisbane
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 Posted: Mon May 02, 2011 2:51 am |
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Oh ok, well i'm not planning on having it 'legal' because we're only allowed a diameter increase of 1.5cm before it becomes illegal. I'll get a rwc with stock tyres then mod it. I was told that 6.5:1 would be good for 33's, so 4:1 is good for 31's? should I get a body lift as well as a susp. lift if I'm using 31's?
_________________ Every problem can be solved with a Ratchet.
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 12998 Location: Melbourne
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 Posted: Mon May 02, 2011 2:57 am |
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Suspension lift isn't required to clear 31, a 2" BL will clear the tyres. 4:1 gearing will be fine.
Suspension is a minefield for coil sierras. The closer you leave the suspension to stock, the less problems you will have.
Steve.
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dave91
Joined: Sun Mar 27, 2011 11:37 pm Posts: 411 Location: Brisbane
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 Posted: Mon May 02, 2011 3:04 am |
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so just a body lift? will it have good flex and be good for 4x4ing?
_________________ Every problem can be solved with a Ratchet.
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Rusho

Tubby Elfsdong
Joined: Sun Aug 02, 2009 11:30 pm Posts: 6501 Location: Northside, Brisbane
Vehicle: Coily Sierra
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 Posted: Mon May 02, 2011 3:06 am |
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dave91 wrote: so just a body lift? will it have good flex and be good for 4x4ing?
I doubt it...you would probably need suspension and body lift. Before you ask, look on eBay, the optima kits are great 
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 12998 Location: Melbourne
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 Posted: Mon May 02, 2011 3:22 am |
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That's a different problem.
The more flex you add, the more room your tyres need to move. Obviously, with just a BL, you'll only have stock flex. The thing is, aftermarket shocks and springs (on stock mounts) don't add much flex either, but they can improve ride. Improving ride is a different issue to adding flex or running a bigger tyre.
If you don't want to get into fabrication, a bolt on 2" suspension lift will improve ride (a bit) and add a bit of flex, but won't cause cause other problems.
Improving flex doesn't make a huge amount of difference to off road ability. A little bit, sure, but not much. A locker makes much more difference than flex. for me, improving flex is really about improving balance so the car feels more predictable when it's picking up wheels, but the lockers are what's adding capability.
Steve.
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ZUKOFHZRD
Joined: Tue Mar 29, 2011 9:57 am Posts: 50 Location: perth WA
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 Posted: Mon May 02, 2011 9:46 am |
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what do you have to do to add flex then?
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Rusho

Tubby Elfsdong
Joined: Sun Aug 02, 2009 11:30 pm Posts: 6501 Location: Northside, Brisbane
Vehicle: Coily Sierra
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 Posted: Mon May 02, 2011 9:50 am |
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Correct springs and bump stops is my guess 
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Mon May 02, 2011 10:10 am |
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ZUKOFHZRD wrote: what do you have to do to add flex then?
4 link front and rear =D
nar... best bet is do a RUF conversion (do a search) and a bigass guard chop.
_________________ 
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smiffkid

az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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 Posted: Mon May 02, 2011 10:12 am |
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ruf on a coily could be a problem alien
_________________ dodgy brothers mechanical
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Mon May 02, 2011 10:14 am |
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making it a leafy would just make it more awesome... lol
_________________ 
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smiffkid

az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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 Posted: Mon May 02, 2011 10:15 am |
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haha,
a guy in tassie had custom coils made with about 4 inchs of lift, and ran 33 inch thorn birds, seemed to go alright
_________________ dodgy brothers mechanical
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Mon May 02, 2011 10:17 am |
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need custom everything to run 4" coils in a coily though.
_________________ 
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smiffkid

az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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 Posted: Mon May 02, 2011 10:20 am |
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yea i know
_________________ dodgy brothers mechanical
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Lockie666

az supporter
Joined: Sat Apr 17, 2010 11:30 pm Posts: 1874 Location: Perth
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 Posted: Mon May 02, 2011 10:21 am |
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alien wrote: need custom everything to run 4" coils in a coily though.
I'm sure you'd know.
He'd just need panhard rods, dropped castor arms and extended brake lines, dropped pitman... annndddd..
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Mon May 02, 2011 12:59 pm |
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an engineer? =)
_________________ 
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smiffkid

az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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 Posted: Mon May 02, 2011 10:46 pm |
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different shocks
_________________ dodgy brothers mechanical
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