Hey guys, I searched but can't find the answer I'm looking for.

The specs for the ITR have the front track at 5mm wider than the non itr dc. My question is, where to they measure the track from? And what makes the track wider on the ITR? I'm assuming the rear is wider as well?

I know the offset for stock itr wheels is +50 vs +45 for the gsr which leads me to think that the gsr's outer tire surface would stick out 5mm further to the outside of the car unless there is other factors that make the itr wider.

Thanks for any help.

 

Bearing to bearing I thought? Not sure though.

 

Where abouts on the bearing do you know? Outer surface? centerline?

Also looking up part numbers, all 94-01 integras use the same front bearing, so that wouldn't be what makes the difference in the track width.

 

The hub itself is different.

 

I understand that the hub has to be different in order to house the extra wheel stud, but does anyone know what about it is different other than that? Is the mounting flange thicker? Maybe someone has pictures of the hub side by side maybe?

 

I wasn't talking about the extra stud, sorry. Let me clarify. I'm pretty sure the extra width in the ITR's track comes from the hub & bearing width. In the rear, the trailing arm spindle or stubby axle that the hub bolts to, is slightly longer to accommodate the slightly wider hub & bearing. This is the reason that you cannot simply swap an ITR hub, to a non-ITR trailing arm.

I am 100% positive that the rear is wider, I'm not sure about the front. It may be the same as all other Integras.

I'm not exactly sure how the track is measured, wheel center-line maybe?

 

Ahh okay, gotcha.

If I'm correct both the front and rear track of the itr is wider than the non itr dc's. Both front and rear are 5mm wider.

 

The rear is 10mm wider (5mm per side)

I don't see anything about the front. I do know that an ITR bearing and hub will press into a non-ITR knuckle, so that leads me to believe that the front track may in fact be the same as all other Integras.

More Info:

http://www.integratyper.org/links.htm
http://www.itrsport.com/technical.html#rear_suspension

 

I think in the front it's gotta be the hub. The front track is listed at 5mm wider so I'm assuming that's the only thing it can be.

 

centerline of the bearing. AFAIK the front isn't wider, but I'm not sure anymore. The bearing is the same for non-ITR and ITR, the hub is obviously different but unless some piece of the suspension is different, the bearing won't move out any farther. Easy to find out by doing a search for part numbers for the UCA, knuckle and LCA for the front between the two.

 

^ Thats what I thought too, but all parts are the same expect for the hub.

Also all the data I can find tells me that the track is wider on the ITR by 4-5mm.

 

Where are you finding that the front is wider? I know the rear is, but I can't remember the front being wider.

 

^ http://www.itrsport.com/specifications.html

ITR Front Track 1480mm

Non ITR Front Track 1475mm

ITR Rear Track 1475mm

Non ITR Rear Track 1470mm

 

Yes, the front track is wider than the rear, and the extra width from the non-R to the R is in the hub. Front uprights/knuckles for ITR and non-R are the same.

Let me say that again, the front track width is wider than the rear track width, this is true for all the 3rd gen Integras. And the ITRs track width is wider than the non-R, front and back.

 

^Yea I understand that.

But what I don't get is where the track is measured from then, and also does that mean that each hub makes up for the 2.5mm difference?

 

This information is incorrect. I have access to the original design specifications.

ITR front track is 1480mm. ITR rear track is 1470mm.

Non-ITR front track is 1475mm. Non-ITR rear track is 1470mm.

You had everything correct except for the ITR rear track. The rear track was not changed from the non-ITR to the ITR.

 

Wheel center to wheel center.