http://cgi.ebay.com/ebaymotors/ws/eB...412594702&rd=1

thanks
-Steve

 

Yep but looks like it's already over

 

yeah I know =) I won 4 of them for $660, good deal eh?
i was told to be worried about the backspacing, should I?
thanks

-Steve

 

What's the backspacing on the rims?

 

No worries with those, they will fit beautifully.

-Shawn

 

sweeet

I was told this:

Uhh... dont want to burst your bubble. but if they are for a 80's-96 vette, they might not fit right.. the backspacing was smaller on the LT1 cars... like 38mm compared to the C5 at 58mm... unless these are different.. Most sites that sell ZR1's have two backspacing options.... for the 96 and older vettes then the newer F-bodys and vettes....


Does that make sense to anyone here?? I have no clue about that kinda stuff.

I'm putting these on my new LS1
-Steve

 

I was told this:

Uhh... dont want to burst your bubble. but if they are for a 80's-96 vette, they might not fit right.. the backspacing was smaller on the LT1 cars... like 38mm compared to the C5 at 58mm... unless these are different.. Most sites that sell ZR1's have two backspacing options.... for the 96 and older vettes then the newer F-bodys and vettes....


Does that make sense to anyone here?? I have no clue about that kinda stuff.

I'm putting these on my new LS1


88-96 Vette have the same offset for a 9.5" rim as your LS1. For 93 - 02 F-body's, I think the only exception may be a Convertible Trans Am. I believe it has the 38mm offset.

Offset is the measurement taken from the centerline (very middle) of the rim. If it's positive, then the mounting face is closer to outside edge of the rim, negative closer to the inside of the rim. Backspace is the measurement from the inside of the rim to the mounting surface. These measurements change as you change the width of your rim. In general, for 4th gens, you need a high positive offset, around 50mm for 9 inch rims, less positive if it's an 8 inch rim. This dictates how far the wheel will stick out from the car. You need to get close to the correct wheel offset to keep from adversely affecting handling, wheel bearing loads, etc...

 

ok, with that being said, they are 9.5" wide, and a 45mm offset, will these fit right or will I need to buy some sort of a spacer?
-Steve

 

9.5"rim width / 2 = 4.75" + 45mm/25.4 = 1.772" offset + 0.25" for tire buldge = 6.77" backspacing, is this ok?

 

i had the same question myself about a week ago, i was looking at some 17x8 wheels with a 38mm offset. to answer your question, i think the wheels may be a tad wide in the front with the 45mm offset and the 9.5" width..

TA25TH's ride inspired me to look at wheels without the traditional 56mm offset...

after checking out this page http://www.skulte.com/adapterfaq.html i found out some good info as to how width/lip measurement/offset relates to overall wheel fit, but basically the higher the offset the farther inward the wheel will fit.. ie the same wheel with a 38mm offset will stick out farther than an identical wheel with a 56mm offset..

i believe the wheels you bought are the same as the wheels on the webpages below (17x9.5 enkei v1's, more than likely the same offset)..

here is a website with a 96 camaro: http://camaro96rs.homestead.com/page1.html
and a 95z here: http://www.racenet.net/photo/micah.htm

the wheels look a tad wide on the front , but fit nicely overall IMHO...

 

They will fit pretty much the same as the Torque Thrust II's. The TT II's have a 7.00" backspace and roughly a 45mm offset. If you do a search, I posted pictures of the TT II's to show where the wheels/tires sit with that backspace. It will also show comparable locations of a ZR1 56mm offset, and another aftermarket wheel with a 49mm offset, for comparison.

To calculate backspace on the wheel, you do not include "tire bulge".... you add the width of the flange that retains the bead. That dimension is typically closer to 0.50"... and if you use that number in the calculation above, and leave out the tire bulge, you will get a 7.00" BS.

[EDIT]
LINK TO PHOTO POST - scroll down near bottom of thread

 

ok, with that being said, they are 9.5" wide, and a 45mm offset, will these fit right or will I need to buy some sort of a spacer?
-Steve


Your only talking a difference of about 10mm from the "stock" offset for that rim width. There are 25.4mm in an inch, so it will push the wheels out a little less than half an inch. I don't think it would visually look that much different. Definitely don't need a spacer, that would just push them out more. You would use a spacer with rims with a higher + offset, like the stock C5 rears, which are around 65mm.

Agreed, the fronts may look a little wide, but the rears will probably line up with the body panels really nice. You might try a slightly smaller tire on the front if it concerns you ... a 255/40 or something. Check with the tire manf specs to ensure what tire size will fit the 9.5" rim width. 275/40 came on the Corvette 9.5's, but I bet 255 would fit as well.

Those Enkie's look really nice. Looks like you found a good deal!

 

sweet, i can't wait to get these now!!!
for tires I have either 275 40 r 17 or 285 40 r17's on there right now, will those fit the rims oki doki?
-Steve

 

both of those tire sizes will fit fine..

 

Yes, 275s are a correct size for 9.5" rims, so are 285s. The diameter of the tire on the 285/40s will be slightly larger, and the sidewall bulge slightly more (This is because the sidewall is 40% of 285mm instead of 275mm). A taller tire will throw your speedo off slightly, your speedo will show slower than you are actually going, but the difference should be minimal. The 275/40 17s are a correct "plus" size from the factory 245/50 16s. Going with a 285 shouldn't throw the speedo off by enough to really worry about.