Mazda Rotary Club

Cars by Model Type => 2nd generation RX-7's => Topic started by: tr1cky on March 04, 2006, 07:14:55 PM

Title: FC offsets???
Post by: tr1cky on March 04, 2006, 07:14:55 PM
Hi,

Can anyone tell me what the offset is on a standard FC wheel?? along with the wheel width?

Seems to be loads of info on FD stuff, but very little on FC\'s :confused:

Would like to know so I can figure out what offset I need for some wider wheels :King

Cheers rich
Title: FC offsets???
Post by: grinder on March 04, 2006, 07:37:32 PM
hows this :

RX7 - 89 to 92

PCD  : 5x114
Offset  : 35 to 45
Bore : 59.6

Not to sure on the bore figure - but the rest looks OK :D
Title: FC offsets???
Post by: tr1cky on March 04, 2006, 08:01:15 PM
thats a good starting point Stu...

If someone, maybe you Stu, could let me know what width rim and offset they are running(so I know it works!)??

That would be great!
Title: FC offsets???
Post by: grinder on March 04, 2006, 08:07:20 PM
i cant think what the FC runs i think its 6JJ wide

you have to be careful on the FC as im not sure what size you can run on the fronts due to the front shocks

now i think that the FD has 7JJ rims - and they are tooo wide to fit on the fronts without spacers .. like i said - im not 100% sure matey

Stu
Title: FC offsets???
Post by: jetpilot on March 05, 2006, 01:16:30 PM
I am running 8.5 fronts, 9.5 rears, i think the offset\'s are around 42 - 45, using a 5 mm spacer on the front but rears are ok.
Title: FC offsets???
Post by: tr1cky on March 11, 2006, 04:39:00 PM
OK

Seen some wheels I like, but think clearence of the arches is going to be a problem!?

8.5front with ET+30 offset
9.5rear with ET+30 offset

From my understanding the fronts would stick out too far by around 5-7mm and rears by about 10mm, am I right??
Title: FC offsets???
Post by: 88GT-R on March 11, 2006, 07:24:10 PM
8.5 with a +30 will be neigh on perfect for the front.  9.5 with a +34 is just inside the rear arches, and with about 10-15mm clearance to the shock.

John
Title: FC offsets???
Post by: tr1cky on March 11, 2006, 09:32:18 PM
So John,

Are these the offsets you run?? Only alot seems to be said and it is very difficult to find a setup which is known to work!

Wanna make sure I get it right 1st time round and not have to use spacers

Cheers Rich

Quote from: 88GT-R8.5 with a +30 will be neigh on perfect for the front.  9.5 with a +34 is just inside the rear arches, and with about 10-15mm clearance to the shock.

John
Title: FC offsets???
Post by: 88GT-R on March 12, 2006, 06:18:22 PM
I am running 9.5 +34mm on the back, and have the same for the front, which are not fitting at the moment. I have not tried the 8.5 +30mm, but am confident that it should be good. Have you had a look at //www.fc3spro.com website or asked on //www.rx7club.com

John
Title: FC offsets???
Post by: tr1cky on March 12, 2006, 06:25:42 PM
Cool! Thanks mate :WaveBye

Yeah looked at both sites, seems to be alot of conflicting info from different people though. But some good info too.

Pretty confident the fronts will work now though. Got a feeling the rears will require the arches rolling or maybe even pulling out abit...Any ideas??
Title: FC offsets???
Post by: 88GT-R on March 12, 2006, 07:24:53 PM
They will only need a touch, as my tyre sits about 4mm in from the lip.

John
Title: FC offsets???
Post by: tr1cky on March 12, 2006, 07:52:36 PM
Quote from: 88GT-RThey will only need a touch, as my tyre sits about 4mm in from the lip.

John

Excellent, cheers for your help mate, made up my mind now! Can hear the wallet screaming for help already :evillaugh