My Most Excellent Z06 Wheel Adventure

[XfireZ51]

I sold and delivered my chrome ZR-1 5 spokes to a CF member in RI. Unfortunately, he has them back on the market. Turns out the offset is wrong for his C4. I only found out after I had delivered the wheels to him. Back here in Chicagoland, I cleared the snow/ice from the driveway and then decided to remove the wheel studs. I received the 18mm hub/wheel centric spacers from wheeladapters.com. Also bought a set of
GM racing wheel studs to put on.
Funny thing though, I never realized that the rear rotors has 10 stud holes until I looked at it today. OK, not too much of an issue but I also saw today that the WHEEL HUB also has 10 holes.:confused: What kind of Corvette wheel hub would be made with 10 holes (different patterns) or why would you drill additional stud holes except for non-GM wheels?!
So the question is "Am I facing installing new rear hub bearings?". Been there before so I now what it takes.
Discuss. :blahblah:

[Jeffvette]

Put up some pics. I got to see this.

[Ccmano]

"If it ain't broke don't fix it" a wise man once said. If your rear bearings are good, you can replace the studs and mount your wheels, your good to go, leave well enough alone.
H
:cheers:

[tccrab]

10 holes, are you sure you're hubs/rotors are stock?
My '90 (although a little rusty) only has 5.
:dontknow:
http://i71.photobucket.com/albums/i159/tccrab/100_1329.jpg

TomC
"Crabs"

[XfireZ51]

10 holes, are you sure you're hubs/rotors are stock?
My '90 (although a little rusty) only has 5.
:dontknow:
http://i71.photobucket.com/albums/i159/tccrab/100_1329.jpg

TomC
"Crabs"

Tom,

The rear rotors are not stock. They're aftermarket slotted and drilled so more of a universal fit. What I didn't expect to find was a hub flange with more than 5 holes. But =Jeff= has shown me an illustration of an OEM hub bearing with 8 holes. I'll have pics tomorrow.

[XfireZ51]

Ok. Here's some pics of what I found after removing the rotor.

[Jeffvette]

Ok. Here's some pics of what I found after removing the rotor.


I've seen swiss cheese with less holes. Who made the rotors?

[XfireZ51]

I've seen swiss cheese with less holes. Who made the rotors?

No indication of manuf. for rotors. Came with the car.
No cracking tho. Holes all chamfered. The hubs look like OEM
being sold today. Why the extra holes isn't clear because they aren't meant to hold wheel studs. I'll be grinding down new stud heads tonight for install tomorrow. Wheels/tires should be here Wednesday.

[XfireZ51]

Wheels and tires being delivered this afternoon. Gotta get hopping on installing studs. :occasion1

[Ccmano]

Did the studs come with the spacer or did you get them locally? What length are you using?
H
:cheers:

[GOLDCYLON]

We want pics when this is done :thumbsup:

[XfireZ51]

Did the studs come with the spacer or did you get them locally? What length are you using?
H
:cheers:

Hans,

Spacers were separate. I got studs from GM. I believe they are about 2.75" racing studs.

[GOLDCYLON]

Hans,

Spacers were separate. I got studs from GM. I believe they are about 2.75" racing studs.

Partnumber for the cause? Cost? :thumbsup:

[-=Jeff=-]

Partnumber for the cause? Cost? :thumbsup:

Gm Wheel Stud PN: 22551491 around $2.50 ea I think

[GOLDCYLON]

Gm Wheel Stud PN: 22551491 around $2.50 ea I think

Awesome thanks Jeff. Just in case

[XfireZ51]

Gm Wheel Stud PN: 22551491 around $2.50 ea I think


Yep. That's what I paid for them at local Chevy dealer. And now I bought lug nuts. He also had a wheel lock set that he sold me for wholesale. 16 lug nut and 4 lock nuts + key = $55.00. I'll post pics of everything later.
Just came back from picking up wheel stud tool at Pete's. :thumbsup:

[XfireZ51]

Some pics

[XfireZ51]

Some more pics

[GOLDCYLON]

Thanks for the pics Dom! This project may help the next guy out who is considering this project.

[carter200]

Some pics

How much were the spacers?

[XfireZ51]

How much were the spacers?

$140 from www.wheeladapters.com

[RICKYRJ1]

Thanks for the pics Dom! This project may help the next guy out who is considering this project.


I'm almost there. New wheels are coming today and the tires should be here sometime next week. My 3 peice 18" Kinesis wheels w/PS'2 will be going up for sale. :thumbsup:

[RUSSELL]

What do those wheels look like and how much.
Might be interested in the them been looking for some thing
different then the A molds that are on my Z. PM if you want to talk about
them with me.


Russell
91 Polo Green # 1501

[ScottZ95ZR1]

I'm almost there. New wheels are coming today and the tires should be here sometime next week. My 3 peice 18" Kinesis wheels w/PS'2 will be going up for sale. :thumbsup:

Those Kinesis wheels are sweet! :cool:

[Ccmano]

What do those wheels look like and how much.
Might be interested in the them been looking for some thing
different then the A molds that are on my Z. PM if you want to talk about
them with me.


Russell
91 Polo Green # 1501

Here's what Dom's talking about. Not sure of the cost, I'm sure Dom will tell us that.
http://www.zr1netregistry.com/forum/showthread.php?t=10179

Not sure which Kenisis wheel Scott is refering to, probably the K58. They make several models.

Hans
:cheers:

http://www.vividracing.com/catalog/wm.php/images/kinesisk58.jpg

[XfireZ51]

First pics hot off the iPhone.

Just a couple of notes:

I took the car down the driveway and down the block slowly to let everything seat. No rubbing noises although rear brake line is up against hub. Will need to tie wrap for now. EBrake clears by about 3/8".

The 18mm spacer is right on the edge of being too much. If I am not happy, may try a 16mm. This confirms the measurement I did with the previous wheels of 5/8" difference between complete Z06 wheel offset and the ZR-1 5 spoke.

I did get the wheels re-balanced before putting them on.

Also pretty sure I'll need an alignment.

[Aurora40]

FYI, if you are in the market for new rear rotors to replace your swiss cheese ones, I'd have to suggest Baer's 13" upgrade. It's not much more than the cost of 2-piece rotors alone, and it would really help fill in those rears. Those wheels make your rear brakes look puny. Are they 18/19's?

[Ccmano]

Your right about being right there in terms of offset. They look great! :thumbsup: Are they factory or aftermarket? What tires are you running, they look like Goodyears.
H
:cheers:

[XfireZ51]

Your right about being right there in terms of offset. They look great! :thumbsup: Are they factory or aftermarket? What tires are you running, they look like Goodyears.
H
:cheers:

Hans,

They are OEM Speedlines. I was surprised by how light they felt even with the tire. And those are GY F1 Supercars.
These are 18x9.5/19x12.

[LGAFF]

I thought the Z06s ended up being close to the LT1 offset, I have 20mm on mine and they sit alittle in if anything......wondering if your hub is different?

[XfireZ51]

Your right about being right there in terms of offset. They look great! :thumbsup: Are they factory or aftermarket? What tires are you running, they look like Goodyears.
H
:cheers:

Hans

How did you tie wrap the rear brake lines? I need to do that for ever so slight clearance.

[Ccmano]

One zip tie loosely around the top of the shock, a second zip tie around both the brake line and the first zip tie. I adjusted it with the wheel mounted and off the ground so that the line is about one inch (or less) away from the wheel. I found that when the car was back on the ground it was still away from the wheel. Good luck.
H
:cheers:

[XfireZ51]

More fitment pics

[LGAFF]

Looks pretty damn good to me.

[Ccmano]

Looking good!:thumbsup:

BTW... what's that white stuff on your lawn and roof?

H
:cheers:

[GOLDCYLON]

More fitment pics

Looks good Dom but Brrrr.....

[XfireZ51]

Looking good!:thumbsup:

BTW... what's that white stuff on your lawn and roof?

H
:cheers:


DAMN YOU HANS!

[Ccmano]

DAMN YOU HANS!

:sign10:

H
:cheers:

[-=Jeff=-]

Looks good Dom but Brrrr.....

Nah it was warm today



about 22 deg

[-=Jeff=-]

Looking good!:thumbsup:

BTW... what's that white stuff on your lawn and roof?

H
:cheers:


:sign10:

We may have that white stuff.. But we don't have to deal with the SMOG NAZIS

:sign10:

[Ccmano]

:sign10:

We may have that white stuff.. But we don't have to deal with the SMOG NAZIS

:sign10:


I've got a "guy" that knows a "guy"
H
:cheers:

[Paul Workman]

Yeah, it must be that damn Left Coast Air. How sooooon they forget!! But, I'd be glad to send you some of this white crap, Hans. That way you wouldn't be so homesick!:sign10:

Miss ya buddy. Merry Christmas to you and your lovely family.

P.

[XfireZ51]

One final detail. I bought the plastic caps to cover the lugs. All was fine except for the 2 rear wheel locks. The wheel locks do not have outer thread as far up the regular lug. That means that the longer racing studs I installed interfere with the plastic cap. I'm thinking of drilling a small hole at the top of the plastic cap allowing the stud to poke thru the cap and allowing thread to engage.

[RICKYRJ1]

Do you need the wheel locks?

[XfireZ51]

Do you need the wheel locks?

In Chicago? Are you kidding?!

[Paul Workman]

Most Exellent...Yeeeaaaah Buddy! 'Em er purdy, purdy, purdy!!!!

[RICKYRJ1]

In Chicago? Are you kidding?!

NO, Last I heard OBAMA and his crew moved to DC :jawdrop: :dontknow:

[-=Jeff=-]

NO, Last I heard OBAMA and his crew moved to DC :jawdrop: :dontknow:
:sign10: :sign10: :sign10:

YEah I have wheel locks on my car, but honestly if they want the wheels THAT bad, they will get them anyway..

[XfireZ51]

Yes they're in DC but members of the Bush/Cheney crime family are still here.

[XfireZ51]

Had the opportunity to finish the final details. I drilled out the center of the plastic caps so the tip of the wheel stud no longer interferes. I can paint that wheel stud tip silver to blend it further with the cap.
As for the brake lines, it didn't take much for clearance. I used long tie wraps around a hard brake line. Plenty of clearance for now. Unfortunately we've got snow on the ground and more on the way thru Xmas. Test drive will need to wait for now. :mad::redface:

[carter200]

Unfortunately we've got snow on the ground and more on the way thru Xmas. Test drive will need to wait for now. :mad::redface:

NO guts NO glory :wave:

[Ccmano]

Dom,

If you can manage to dig out the driveway can you post some more pix? I'd like to see a bit more of how it looks.

And BTW... I still think my political crooks are better than yours!

H
:cheers:

[GOLDCYLON]

:sign10: :sign10: :sign10:

YEah I have wheel locks on my car, but honestly if they want the wheels THAT bad, they will get them anyway..

No kidding, all your causing the thief is more time that it will take to get to the wheel. Hopefully more time than he wants to spend and he will move on to an easier car. :mad:

If a thief whats your wheels or your car for that matter its gone.

[XfireZ51]

NO guts NO glory :wave:

Easy for you to say yellin from Texas.


Hans,

I couldn't agree more. Bush/Cheney are much greater crooks.

[Ccmano]

Easy for you to say yellin from Texas.


Hans,

I couldn't agree more. Bush/Chaney are much greater crooks.


Bush/Chaney had 8yrs, By the time it's over Obama will make them look like amatures...
H

[XfireZ51]

Bush/Chaney had 8yrs, By the time it's over Obama will make them look like amatures...
H

At this time I would appreciate that we terminate the political commentary on this thread.
My interest here was to provide information on using Z06 wheels.
Anybody want to discuss Bush or Obama, please take it to the
Off-Topic forum.

[-=Jeff=-]

At this time I would appreciate that we terminate the political commentary on this thread.
My interest here was to provide information on using Z06 wheels.
Anybody want to discuss Bush or Obama, please take it to the
Off-Topic forum.

So did you take it out last night to do some donuts in the snow?

:sign10:

[XfireZ51]

So did you take it out last night to do some donuts in the snow?

:sign10:

You mean you didn't hear the crisp snap of crackling fiberglass last night?
:sign10:

[-=Jeff=-]

You mean you didn't hear the crisp snap of crackling fiberglass last night?
:sign10:

:sign10:

[XfireZ51]

It was 35 and sunny here in Chicagoland. Take that you SoCal guys.:bootyshak
Roads looked pretty good although there was some thawing runoff in places but no real big. Decided to finally take the car out for a run to see if I felt anything diff about the 18/19 Z06 wheels and the F1 Supercars.
Some general impressions on cold asphalt:

Car drove straight and it likes the cold dry air. No vibes. Based on a few off/on ramps and some curves I am very familiar with, I could feel the car as being more responsive to steering input. It was immediate. In comparison, the previous wheel/tire combo felt like there was a slight delay. In off/on ramps, the rear felt very planted. Previously, the rear would feel as if it was dancing around a bit. The front usually would feel like it was pushing into a curve. Today, it felt like a controllable oversteer. The front tucked in nicely.

Also, given the diff in diameter for the 19" wheel tire combo, I decided to see how much of a speedo error I would have. I used my GPS which provides road speed readout. Overall, speed differential was 2.5-4mph with speedo reading slower. At speedo indicated 80mph cruise, GPS showed 83-84mph. Not sure if that's enough to warrant a speedo gear change. One note, I do not have a benchmark for the speedo v GPS using the standard tire/wheel combo. For all I know it could have been the same differential. Anybody else with similar experience?