Help - 17x8.5JJ, ET40 should fit the front of an FD, right?

Started by elford_tim, December 15, 2007, 03:32:28 PM

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elford_tim

Oh buggeration, I\'ve just tried to fit my new-to-me TE37s. The front ones are as above, and unfortunately on full lock rub the front wheelarch liner. And that\'s with the very well worn Japanese tyres on them (235/45 - I\'m sure they\'d fit without tyres but that\'s not that useful) Actually I haven\'t checked the back liner but they look like they\'ve got enough clearance there. I\'ll check that in a minute.

My impression from reading the stick offset thread was that ET40 in these dimensions should be a straight fit.

Any ideas? Are there any alternative wheelarch liners around or somesuch?

This is getting on my nerves as this is the second set of wheels that almost fit to this car.
1989 Turbo II convertible in Essex Stilletto white

rx7veilside


elford_tim

I just played with the recommended Tyresave calculator and supposedly the difference between the two wheels with their respective tyres (225/50/16 and 235/45/17) is about 12mm diameter-wise. Which is certainly noticeable, but I\'m surprised that the wheelarch liner would have that little clearance - after all, that\'s 6mm difference in radius, which is roughly the depth of the thread.

That said, 225/45/17 is within 3mm of the diameter, but it\'s a tad expensive to find out if they do fit better or not.
1989 Turbo II convertible in Essex Stilletto white

rx7veilside

#3
is it 225/40/17 at front and 255/35/17 for rears

batman

REAL MEN PLAY WITH TWINS     :Laugh

elford_tim

Strange contraptions used by odd people like me who insist on driving their cars even if it\'s wet outside.
1989 Turbo II convertible in Essex Stilletto white

batman

i drive in all conditions just avoid the big puddles and never suffered from water problems mate not like a piston problem seem fine without them
REAL MEN PLAY WITH TWINS     :Laugh

elford_tim

Quote from: rx7veilsideis it 225/40/17 at front and 255/35/17 for rears

Weeellllll. I assume you\'re suggesting that I should have 225/40/17 on the front then?

Those FDs that came with 17" from the factory have 235/45s on them according to the tyre thread. Which incidentally is what I\'ve got on those wheels at the moment. But then again mine\'s a 92 so originally came with 16" wheels, which is indeed what it\'s wearing now.

The odd thing is that these wheels have been on a \'93 FD (which still had its wheelarch liners) without any rubbing.

Is there anything about the \'92 front suspension that is different?
1989 Turbo II convertible in Essex Stilletto white

batman

no no dear friend i have 245 40 17s extra width no rub >:)
and my coil overs are set low
REAL MEN PLAY WITH TWINS     :Laugh

rx7veilside

but the offset on the factory cars was probably higher the offset can make a lot of difference..the suspension wld be the same assuming standard suspension
i have the ultralite alloys 8.5x18 at front with 225 tyres and get no rubbing at all but it is tight
if they were on a fd prev and didnt rub then its illogical that they rub on yours
either they rubbed on the other car or ur liners our out of position

elford_tim

The \'original\' offset is ET50, on both the 16" and 17" rims. Just out of interest, what\'s the offset on your 18s?

I\'m beginning to suspect that I need to check the way that the front wheelarch liners are mounted - they seem to be a lot closer to the wheel than the rear ones are, for starters. Maybe they\'re mounted slightly out of position or something.

At the end of the day if they came of an FD of similar age, they should fit so I better find out what is different. If I can, that is... I guess I could always fit 225/45s or 225/40s at the front to get a bit more clearance, but it shouldn\'t be that critical in the first place.
1989 Turbo II convertible in Essex Stilletto white

Ricco_04

Well the standard size on a 92 FD is 225 on a 8" width rim and +50 offset (offset taken from your post above).  Compared to your 8.5 & +40 offset this gives you 4mm more clearance on the inside but the wheel extends 16 mm more to the outside.  So although it\'s not much maybe that\'s whats causing it?

If it is and a 225 sits on safely (I have no idea) then this should help your clearance (as above by mr veilside)

elford_tim

Finally got my act together today and removed the wheelarch liner. While pulling that out I noticed that something already wore a hole into the liner! I don\'t know if that something were my standard 16" wheels or not but I don\'t think that\'s good news.

With the liner off, the wheel fits and at full lock I can get my hand between the windscreen washer tank and the tyre so I\'d think I\'ve got just about enough clearance.

My wheelarch liner did look a bit bodged on and is also missing some fasteners; I knew the car had a front bumper replaced at one point and that doesn\'t seem to have been fitted with the usual Japanese, erm, precision. Guess it\'s time to see if wiggling some brackets will give me a bit more clearance.

Hrmpf.

Anybody got some spare wheelarch liner fasteners?
1989 Turbo II convertible in Essex Stilletto white

20B_boy

Quote from: elford_timMy impression from reading the stick offset thread was that ET40 in these dimensions should be a straight fit.
I wouldnt have expected them to fit properly due to the reasons give above i.e. running a 235 on a half inch wider rim with -10 difference compared to the stock offset.

If you buy less than a 50 offset you have to expect problems. If you drive like a pansy (assuming no rubbing on lock issues) then a lower offset might work. If you drive on track or generally more aggressively then low offset = ballache.
R.

elford_tim

Did you see the post above that said those wheels have been on another FD with wheelarch liners and there were no problems with them rubbing said liners? Oh, and the bit where I posted today that the wheelarch liners on my car have been damaged despite me running the original wheels?
1989 Turbo II convertible in Essex Stilletto white