Print Page - Correct Offset

Title: Correct Offset
Post by: AshRX on March 17, 2008, 01:42:09 PM

I have seen a set of 18\'s i like which are the following:

Front 9J +20 Offset 18"

Rear 10J + Offset 18"

Will these fit ok on standard archs

Im running Tein Mono Flex Coilovers

Cheers

Title: Correct Offset
Post by: Jit on March 17, 2008, 02:12:16 PM

i dont think they wil fit under standard arches. ET20 is too low

Title: Correct Offset
Post by: AshRX on March 17, 2008, 02:18:38 PM

missed a bit...

18 inch

9JJ wide

+20 offset for 5H

18 inch

10JJ wide

+30 offset for 5H

Title: Correct Offset
Post by: Initial-D on March 17, 2008, 04:35:17 PM

I had +18 on 18x9" fronts and +22 on a 18x10" rears and they were out by nearly an inch front and back!

Title: Correct Offset
Post by: AshRX on March 17, 2008, 04:42:34 PM

take it these will be to wide then dam

could of got them for a really good price too

Title: Correct Offset
Post by: m4drx on March 17, 2008, 04:58:06 PM

i would say absolutely no chance also!

You could always roll the arches?

Title: Correct Offset
Post by: AshRX on March 17, 2008, 05:05:45 PM

might have to now

Title: Correct Offset
Post by: Shiuko on March 17, 2008, 05:23:35 PM

This might help.

http://www.1010tires.com/WheelOffsetCalculator.asp (http://www.1010tires.com/WheelOffsetCalculator.asp)

Title: Correct Offset
Post by: 20B_boy on March 17, 2008, 05:40:15 PM

Stock offset is +50 all round with an 8J 16. From there, use an offset calc like the one above or the one on driftworx.com.

Title: Correct Offset
Post by: Initial-D on March 17, 2008, 05:40:39 PM

What rims are they!?

Title: Correct Offset
Post by: AshRX on March 17, 2008, 05:52:46 PM

ill post pic later

Title: Correct Offset
Post by: Shiuko on March 17, 2008, 06:16:07 PM

Forgot to ad:

Sizes and offsets of the standard fit wheels and tyres for an FD.

16 Inch Wheel

Wheel diameter
16 Inch

Wheel rim width
8JJ

Genuine installing tire size
The 225/50R16 (with the grade the ZR)

Wheel offset
+50 (mm)

P.C.D.
114.3 (Mm)

Standard major diameter of tire of this size
632-635mm

17 Inch Wheel

Wheel diameter
17 Inch

Wheel rim width
Front 8JJ
Rear 8.5JJ

Genuine installing tire
Front:235/45ZR17
Rear:255/40ZR17

Wheel offset
+50 (mm)

P.C.D.
114.3 (Mm)

Standard major diameter of tire of this size
Front:644mm
Rear:640mm

Taken from this previous post:

http://www.mazdarotaryclub.com/forums/showthread.php?t=279&highlight=offsets (http://www.mazdarotaryclub.com/forums/showthread.php?t=279&highlight=offsets)

Title: Correct Offset
Post by: ro284 on March 17, 2008, 07:03:45 PM

Mine have 38 offset front and rear. front 17x8 rear 17x9 no problems with fit or rubbing antwhere,

Title: Correct Offset
Post by: essexgirlracer on March 17, 2008, 07:12:58 PM

how would an offset of 35 be

Title: Correct Offset
Post by: 20B_boy on March 18, 2008, 04:25:09 AM

Quote from: ro284Mine have 38 offset front and rear. front 17x8 rear 17x9 no problems with fit or rubbing antwhere,

I have 18x10 38 on the rear, lowered a little, with rolled arches - and I can still get them to rub just about if I *really* try...

Title: Correct Offset
Post by: Papercup on March 21, 2008, 01:33:36 PM

Quote from: ro284Mine have 38 offset front and rear. front 17x8 rear 17x9 no problems with fit or rubbing antwhere,

same here, 17x8 and 17x90, 40 offset, tight at the back but no rubbing even on track in a hurry

arches are not rolled

(http://www.driftworks.com/resources/wheel-offset-calculator,17.html)

this is very useful

http://www.driftworks.com/resources/wheel-offset-calculator,17.html (http://www.driftworks.com/resources/wheel-offset-calculator,17.html)

Title: Correct Offset
Post by: Kevin on April 04, 2008, 10:53:50 AM

I run 18 x 8.5 Front + 30 and 18 X 9.5 Rear +30 and have no problems at all.

Mazda Rotary Club

General => General Technical => Wheels & Tyres, Suspension & Brakes => Topic started by: AshRX on March 17, 2008, 01:42:09 PM