S13 wheel tech - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

krustindumm · 10-10-2005, 09:12 PM

so i figured i'd share what i've learned so far trying to get some flush & wide wheels for my s13 coupe.

You need the outer lip about 93mm from the hub to get the rim flush on an S13 with 0 camber. Add about 1mm per degree of negative camber for a 15" wheel.

How do you find that?

wheel width in inches x 25.4 / 2 - offset in mm + spacer in mm + 10mm for thickness of the lip

example:

I am running 15x7+32 with a 34mm spacer.

7 x 25.4 = 177.8mm
/ 2 = 88.9mm
- 32mm = 56.9mm
+ 34mm = 90.9
+ 10mm = 100.9mm

here's how that looks with about 2* of negative camber front and 3* negative rear:

mr_240sx · 10-10-2005, 11:31 PM

all you gotta do now is lower your 4x4!

krustindumm · 10-11-2005, 12:26 AM

any lower and it scrapes.

front lip is 2" off the ground, and I live 1.5 miles from pavement. If i go to a taller tire (currently 195/50/15) then i can lower it more, reducing wheel gap, but keeping my ground clearance.

Maeda · 10-11-2005, 02:25 AM

Quote:

Originally Posted by krustindumm

any lower and it scrapes.
front lip is 2" off the ground, and I live 1.5 miles from pavement. If i go to a taller tire (currently 195/50/15) then i can lower it more, reducing wheel gap, but keeping my ground clearance.

My front lip is 2 mm off the ground.
Lower it more.

The pavement thing I can't help you though, so keep it up maybe an inch.

A Spec Products · 10-11-2005, 02:39 AM

man ive been outta school too long, easy on the math dude haha

i guess youve figured it out, but its pretty known already what sizes/offsets are flush i.e

15x7+0 S13 F/R
16x8+10 S13 R
17x9+15 S13/S14 F or F/R
17x10+25 S13 R
17x10+12 S14 R
18x9.5+12 S14 F/R

you dont have to SLAM it socal style, but like maeda said, u can leave inch or so. personally $.02 id rather run no zenki lip and have no fender gap than run zenki and have gap.

so, youre running LESS than a 195/50? yikes, just run 195/60 and call it a day, then you dont need to slam it as much to lessen the gap

krustindumm · 10-11-2005, 09:19 AM

Thanks, for totally missing the point of the thread.

BTW, those sizes you listed negate camber and width changes.

My car is low enough as it is, my steering rack scrapes at 4-5 points along my road every time I leave. The lip is nice and flexible, it just folds under. It drives pretty nice, and I'm not to concerned about how it looks, fuck it's my daily driver after all.

240meowth · 10-11-2005, 01:07 PM

the freak is up w/ people w/ super duper lowered cars, let's be practical here.

btw, thanks for the write up, now i just need enough $ to buy wheels that size...

jy116 · 11-06-2005, 10:31 PM

15x7 +0 on front is like 1cm out beyond the fenders

krustindumm · 11-06-2005, 11:56 PM

should have ended up with like a -15+7 by my formula, i think. That was the plan anyway.

CHARLIE2020 · 11-07-2005, 12:28 AM

Here what an 18x8+30 offset looks like all around.

10-10-2005, 09:12 PM	#1
krustindumm Zilvia Junkie Join Date: Dec 2004 Location: Iowa Age: 40 Posts: 473 Trader Rating: (0) Feedback Score: 0 reviews	S13 wheel tech so i figured i'd share what i've learned so far trying to get some flush & wide wheels for my s13 coupe. You need the outer lip about 93mm from the hub to get the rim flush on an S13 with 0 camber. Add about 1mm per degree of negative camber for a 15" wheel. How do you find that? wheel width in inches x 25.4 / 2 - offset in mm + spacer in mm + 10mm for thickness of the lip example: I am running 15x7+32 with a 34mm spacer. 7 x 25.4 = 177.8mm / 2 = 88.9mm - 32mm = 56.9mm + 34mm = 90.9 + 10mm = 100.9mm here's how that looks with about 2* of negative camber front and 3* negative rear: __________________ ASE Master Technician Last edited by krustindumm; 10-11-2005 at 12:28 AM..

10-11-2005, 12:26 AM	#3
krustindumm Zilvia Junkie Join Date: Dec 2004 Location: Iowa Age: 40 Posts: 473 Trader Rating: (0) Feedback Score: 0 reviews	any lower and it scrapes. front lip is 2" off the ground, and I live 1.5 miles from pavement. If i go to a taller tire (currently 195/50/15) then i can lower it more, reducing wheel gap, but keeping my ground clearance. __________________ ASE Master Technician

10-11-2005, 02:39 AM	#5
A Spec Products Post Whore! Join Date: Mar 2005 Location: Socal! Off 60/605 Posts: 7,256 Trader Rating: (27) Feedback Score: 27 reviews	man ive been outta school too long, easy on the math dude haha i guess youve figured it out, but its pretty known already what sizes/offsets are flush i.e 15x7+0 S13 F/R 16x8+10 S13 R 17x9+15 S13/S14 F or F/R 17x10+25 S13 R 17x10+12 S14 R 18x9.5+12 S14 F/R you dont have to SLAM it socal style, but like maeda said, u can leave inch or so. personally $.02 id rather run no zenki lip and have no fender gap than run zenki and have gap. so, youre running LESS than a 195/50? yikes, just run 195/60 and call it a day, then you dont need to slam it as much to lessen the gap __________________ A SPEC PRODUCTS CORP AME Wheels, Advan, ARC, Gram Lights, Nardi, Personal, Recaro, Works Bell, Work Wheels, Volk Racing, 5Zigen, & more! 626.618.1100 x 103 / aim: aspectuan Advertiser's Specials! Read / Give Feedback! Please Rate Us!

10-11-2005, 09:19 AM	#6
krustindumm Zilvia Junkie Join Date: Dec 2004 Location: Iowa Age: 40 Posts: 473 Trader Rating: (0) Feedback Score: 0 reviews	Thanks, for totally missing the point of the thread. BTW, those sizes you listed negate camber and width changes. My car is low enough as it is, my steering rack scrapes at 4-5 points along my road every time I leave. The lip is nice and flexible, it just folds under. It drives pretty nice, and I'm not to concerned about how it looks, fuck it's my daily driver after all. __________________ ASE Master Technician

10-11-2005, 01:07 PM	#7
240meowth Nissanaholic! Join Date: Dec 2001 Location: torrance, ca Age: 41 Posts: 2,407 Trader Rating: (4) Feedback Score: 4 reviews	the freak is up w/ people w/ super duper lowered cars, let's be practical here. btw, thanks for the write up, now i just need enough $ to buy wheels that size... __________________

10-10-2005, 11:31 PM	#2
mr_240sx Post Whore! Join Date: Nov 2004 Location: Ottawa Age: 38 Posts: 6,320 Trader Rating: (4) Rides Gallery: mr_240sx Feedback Score: 4 reviews	all you gotta do now is lower your 4x4!

11-06-2005, 10:31 PM	#8
jy116 Zilvia Addict Join Date: Aug 2003 Location: Berkeley, CALifornia Posts: 785 Trader Rating: (0) Feedback Score: 0 reviews	15x7 +0 on front is like 1cm out beyond the fenders __________________ KYB AGX w/ dust boots $500obo... sadly serious

11-06-2005, 11:56 PM	#9
krustindumm Zilvia Junkie Join Date: Dec 2004 Location: Iowa Age: 40 Posts: 473 Trader Rating: (0) Feedback Score: 0 reviews	should have ended up with like a -15+7 by my formula, i think. That was the plan anyway. __________________ ASE Master Technician

11-07-2005, 12:28 AM	#10
CHARLIE2020 Zilvia Addict Join Date: Jan 2005 Location: Socal Fontana Age: 48 Posts: 784 Trader Rating: (0) Feedback Score: 0 reviews	Here what an 18x8+30 offset looks like all around.