wheel size?!

ok i was reading a post a while ago, and just trusted the guy knew what he was talking about, but now i am wondering...the svx wheel offset is what?? he said offset is 50? now i see the guys with the ones on ebays said they are 40. which is it?!

[Never2phat]

Factory rims.............

Bolt pattern: 5x114.3mm (4.5")
Centerbore: 56mm
Offset: 50+

You can go with a lower offset, as others have done, but you up the chances of bearing problems. Some members have as low as a 38+ offset and have had no problems.

B.C.

[wawazat??]

offset is 55mm on the stock wheels as I have stated in previous posts. I have 17" x 7.5" with 48mm offset on mine.

[1994SubaruSVX]

guys for more than a year i have been running 38mm offset enkei RS6's with no problems. they 17 x 7.5in. with 225/45 Potenzas plus my car is lowered two inches. i have had no rubbing or any other kind of problems.

what do you guys think about 16" with a 40 offset?

how about a wheel that is 16 X 7
5 x 114.3 (5 bolt pattern 114.3 spacing)
42 offset..
what is the widest tire I can use that will fit both the rim and not rub the well??
what about the 42 offset?? how will that affect my car??
thanx 4 da info---squiggy

[Motorsport-SVX]

Theres NO truth to the rumor of lesser offset rims causing premature wheelbearing problems !!! Svxs with stock rims STILL have the same amt of problems as those with different offset rims. .IMHO the very positive offset Subaru uses might be one of the reasons Causing the bearing problems. I can see how it would put more load on the bearings too. For the record, I truley believe you can use anywhere from a +38 - +50mm offset rim and experience no issues.

[wasions]

Originally posted by casper150
what do you guys think about 16" with a 40 offset?

I was checking on that a year or so ago and found that the biggest problem with 16" aftermarket wheels, is that there's very little clearance (like measure in thousanths of an inch) between the rim and the caliper. Looks like a pretty small pebble could do some serious damage.

. . . or maybe not, I didn't get them.

[Motorsport-SVX]

Originally posted by wasions


I was checking on that a year or so ago and found that the biggest problem with 16" aftermarket wheels, is that there's very little clearance (like measure in thousanths of an inch) between the rim and the caliper. Looks like a pretty small pebble could do some serious damage.

. . . or maybe not, I didn't get them.

thats the least of your worries honestly. If a caliper is that weak it shouldnt be on the car. The pebble would be dust in a second...
Put on what you like with any of the offsets mentioned before...youll be fine. Ive had every size and combination on my own SVXs for the last 3 yrs....Ive been selling custom rims-tires since the mid 80s......my advice comes from a proffesional standpoint.

well, thanks for everyones thoughts i will let you know how they look or work by next week, that is if the $115 power steering lines comes in by then!

[oab_au]

Originally posted by Motorsport-SVX
Theres NO truth to the rumor of lesser offset rims causing premature wheelbearing problems !!! Svxs with stock rims STILL have the same amt of problems as those with different offset rims. .IMHO the very positive offset Subaru uses might be one of the reasons Causing the bearing problems. I can see how it would put more load on the bearings too. For the record, I truley believe you can use anywhere from a +38 - +50mm offset rim and experience no issues.

Hi Dayle, I don't think 12mm would affect the bearings.

Don't confuse the wheel dish offset with the steering axis offset.

The steering axis is a line drawn, looking from the front, down from the top strut bearing, through the bottom ball joint, touching the ground in the center of the tyre tread. This is zero axis offset.

If less wheel dish offset is used, say 38mm instead of 50mm, that would place the tyre tread center 12mm inside the steering axis center to give a negative offset or "negative scrub radius".

This positive or negative scrub radius is used by designers to counter act other problems. It won't give any problems while both wheels have the same grip on good roads.

If braking hard on a uneven road the wheel with the most grip will try to steer in to the opposite side, causing the car to dive around under brakes. When accelerating around a corner, the outside wheel would have the grip to steer the car away from the cornering line, to produce "torque steer".

If you want the car to steer well under all conditions, use the same wheel dish offset.
Harvey.

[Motorsport-SVX]

Originally posted by oab_au


Hi Dayle, I don't think 12mm would affect the bearings.

Don't confuse the wheel dish offset with the steering axis offset.

The steering axis is a line drawn, looking from the front, down from the top strut bearing, through the bottom ball joint, touching the ground in the center of the tyre tread. This is zero axis offset.

If less wheel dish offset is used, say 38mm instead of 50mm, that would place the tyre tread center 12mm inside the steering axis center to give a negative offset or "negative scrub radius".

This positive or negative scrub radius is used by designers to counter act other problems. It won't give any problems while both wheels have the same grip on good roads.

If braking hard on a uneven road the wheel with the most grip will try to steer in to the opposite side, causing the car to dive around under brakes. When accelerating around a corner, the outside wheel would have the grip to steer the car away from the cornering line, to produce "torque steer".

If you want the car to steer well under all conditions, use the same wheel dish offset.
Harvey.

All good info, but getting back to the bearings, how far in or out the wheel sits from the bearing center would determine how much load is put on the bearing over an extended period of time and miles.....Im just curious as to how much it really effects these cars in stock configuration.

[oab_au]

Originally posted by Motorsport-SVX


All good info, but getting back to the bearings, how far in or out the wheel sits from the bearing center would determine how much load is put on the bearing over an extended period of time and miles.....Im just curious as to how much it really effects these cars in stock configuration.

Don't know Dayle, don't think 12mm (.5in) would cause that much more lateral load on the bearings. Wheel offsets that I have seen on older "hot rods" where the wheel center has been reversed to give 2"to 3" offsets, certainly did.

I think Subaru missed the boat, in the wheel bearing dept. I
don't think they accounted for the high lateral forces, that this car can generate at speed in corners.

The bearing tracks are too close together, to handle these high forces. If the bearing tracks were, say 50mm (2") apart, the lateral forces would place less load on the races.

So what is the out come, don't corner fast !!!!!.
This car sticks like s**t to a blanket and I don't mind paying for the thrill
Harvey

[1994SubaruSVX]

Dayle maybe your opinion will finally end this stupid offset myth. I have been hearing people terrified of putting 38mm offset wheels for the last year. I tried and tried to tell them that everything would be ok as long as the stayed in the 7.5in or lower range.

Hopefully now this myth will be put to rest.