My New, 23 Year Old ZR-1

[HIZNHRZ]

This ZR-1 is now for Sale

Two summers ago I put a set of C6 ZR1 wheels and tires on my 2006 ZO6. I really liked the look of these wheels. From the day I bought them I also thought they would look sharp on my C4 ZR-1. I test fitted the C6 ZR-1 wheels on the C4 ZR-1 several times. Doing so confirmed that one day I was going to buy a set for the 1991 ZR-1. The C6 19” wheels didn’t look bad on the front of the C4 but I thought the 20” wheels on the back were too much.
This winter, when I decided I was going to put Michelin runflats on my 1991 ZR-1 I also decided to install the C6 ZR1 wheels. The wheels, tires, and lowering was done by Marc Haibeck who did his typical outstanding work. The look may not be for everyone but I really like it.

The ZO6 that started me thinking I'd like to see C6 ZR1 OE wheels on a C4 ZR-1.
http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5556_zps617cb006.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5556_zps617cb006.jpg.html)

My ZR-1 with the CCW 18" Classic's (front and back) before the new wheels.
http://i62.photobucket.com/albums/h113/hiznhrz/IMG_2286.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_2286.jpg.html)

My new, 23 year old ZR-1 with its recent makeover. 275/35 18"X9.5" on the front and 325/30 19" X 12" on the back.
http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5651_zps703a00f0.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5651_zps703a00f0.jpg.html)

http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5646_zps207727a8.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5646_zps207727a8.jpg.html)

http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5645_zps86432ae2.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5645_zps86432ae2.jpg.html)

http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5644_zps5f997118.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5644_zps5f997118.jpg.html)

[HIZNHRZ]

Marc Haibeck's real handywork...

http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5640_zpsabb31eda.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5640_zpsabb31eda.jpg.html)

http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5641_zps142c80ab.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5641_zps142c80ab.jpg.html)

[USAZR1]

Personally,I think your car looks awesome,now. Nice to see you stretching the envelope.

[efnfast]

Those look great.

[88GTAChuck]

I agree they look awesome! Any spacers to get the correct back spacing? Or are they just stock CR ZR1 rims? This is something I've been thinking about doing to my Z.

[XfireZ51]

I seriously considered those wheels. After all, they are for a ZR1. But opted for the Z06 5 spoke instead but I think your black can work w them better than my black rose. 20" rears SCREAM for bigger brakes BTW. THe Z06 rear calipers I installed do a much better job of filling out the 19" rear wheels. The stock C4 brake looked puny like it came off a Corolla.
I think the silver looks awesome also.

[HIZNHRZ]

I agree they look awesome! Any spacers to get the correct back spacing? Or are they just stock CR ZR1 rims? This is something I've been thinking about doing to my Z.

Thanks. I'm very pleased with both the wheels and tires.

I did use a spacer on the rear wheels. The design objective was for the outside edge of the wheels and tires to be located and look the same (as the OE wheels and tires) in terms of their location to outboard side the wheel housing.

The new wheels were 18 X 9.5 inch (fronts) with a +57mm offset and rear wheels were 19 X 12 inch with a +59mm offset. The OE front wheels were 17 X 9.5 inch with a +56mm offset. The OE rear wheels were 17 X 11 with a +36mm offset.

Marc recommended and sourced a 10mm spacer for the rear wheels. The 10mm spacer met the design objective by insuring all of the one inch additional wheel width was on the inside of the wheel housing.

The rear tires were also 1" larger in diameter. The front and rear suspension were lowered 1/2". The speedometer was also corrected +4%.

[USAZR1]

My new, 23 year old ZR-1 with its recent makeover. 275/35 18"X9.5" on the front and 325/30 19" X 12" on the back.
http://i62.photobucket.com/albums/h113/hiznhrz/IMG_5651_zps703a00f0.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_5651_zps703a00f0.jpg.html)


Nice stance! How did you lower the car?

[XfireZ51]

So these are not OE ZR1 wheels then?

[HIZNHRZ]

20" rears SCREAM for bigger brakes BTW. THe Z06 rear calipers I installed do a much better job of filling out the 19" rear wheels. The stock C4 brake looked puny like it came off a Corolla. I think the silver looks awesome also.

I agree with you on all points. The reason for sending the car to Chicago, however, was it had a pilot bearing that was fused to the transmission input shaft and a clutch disc that imploded. I needed a replacement clutch that would handle the engine mods and I wanted to retain my OE dual mass flywheel. Marc had the package I was looking for.

I had planned to go with the C6 brake package. With the transmission out of the car it seemed to make sense to have Marc send it to Bill Boudreau and have him do his ZF magic.

I spent a big part of my brake budget on on the transmission. I was going to wait on the wheels until I could swing the tires, wheels, and brakes all at the same time. I ended up going with 18" wheels in the front and 19" wheels in the back.

With a little luck I'll buy the high ticket items (Street Shop rear brake adapter kit, rotors, and C6 ZO6 calipers) this summer. The install and remaining parts will need to wait until next year.

[HIZNHRZ]

So these are not OE ZR1 wheels then?

No. I could have made the 20" OE wheels work. The combination of the 20" wheel and a tire sidewall that was .5" smaller just didn't look right to my eye. I also convinced myself that going with the OE ZO6 tire size would not be a problem in my lifetime.

[XfireZ51]

I agree with you on all points. The reason for sending the car to Chicago, however, was it had a pilot bearing that was fused to the transmission input shaft and a clutch disc that imploded. I needed a replacement clutch that would handle the engine mods and I wanted to retain my OE dual mass flywheel. Marc had the package I was looking for.

I had planned to go with the C6 brake package. With the transmission out of the car it seemed to make sense to have Marc send it to Bill Boudreau and have him do his ZF magic.

I spent a big part of my brake budget on on the transmission. I was going to wait on the wheels until I could swing the tires, wheels, and brakes all at the same time. I ended up going with 18" wheels in the front and 19" wheels in the back.

With a little luck I'll buy the high ticket items (Street Shop rear brake adapter kit, rotors, and C6 ZO6 calipers) this summer. The install and remaining parts will need to wait until next year.

Pretty much what I did except for the trans part. A bit by bit process. Couple of little kinks getting the Z06 rears to work. Particularly w getting the eBrake cable right. But you have some that have blazed the trail, so ring me up when you get to that part.

[XfireZ51]

No. I could have made the 20" OE wheels work. The combination of the 20" wheel and a tire sidewall that was .5" smaller just didn't look right to my eye. I also convinced myself that going with the OE ZO6 tire size would not be a problem in my lifetime.

Agree on both points. Thought 20" was a bit much. Tire availability was also a consideration for the 19s.

[HIZNHRZ]

Nice stance! How did you lower the car?

Replaced the 8" spring bolts that run between the ends of the rear spring and the top of the suspension knuckle with longer bolts.

Replaced the front leaf spring and in the process laminated new "Lowering Wedges" onto the front leaf spring.

Back is easy, the front - not so much.

I also had trouble with the ride height of passenger side being higher than the ride height of the driver side. Marc Haibeck also took car of this problem when he had the car this past winter.

[We Gone]

Looks great.. Congrats on a fine ride.

[HIZNHRZ]

Finally was able to get my "parts" powder coated. Looking forward to seeing how these will look like on my car...the plan is to use a set of old C6 brake pads to wear throught the powder coating on the rotors. Thoughts?
Fronts:
http://i62.photobucket.com/albums/h113/hiznhrz/IMG_0494_zpshjnu0ixz.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_0494_zpshjnu0ixz.jpg.html)
Rears:
http://i62.photobucket.com/albums/h113/hiznhrz/IMG_0500_zps0atgbjd9.jpg (http://s62.photobucket.com/user/hiznhrz/media/IMG_0500_zps0atgbjd9.jpg.html)

[XfireZ51]

They will look great but stop you even better. The amount of pedal travel needed to slow your car down will decrease. You'll find that you are stopping sooner than you thought. I have another set of stock rotors if you need them. Anxious to see how my lighter rotors will feel on the car,

[Mystic ZR-1]

They look great!
But, why didn't you have the powdercoater
mask off the pad wear area?
Getting the rotors "turned" to get off the pad area powdercoat
may be a better option than wearing it off with old pads?

[Jagdpanzer]

Finally was able to get my "parts" powder coated. Looking forward to seeing how these will look like on my car...the plan is to use a set of old C6 brake pads to wear throught the powder coating on the rotors. Thoughts?


Scott,
They turned out great.
To avoid a potential headache mess of burned off powder coat everywhere I would go along with Mystic's suggestion and take them down to your local brake shop and have the coating turned off the contact surface with a brake lathe.

[HIZNHRZ]

But, why didn't you have the powdercoater
mask off the pad wear area?
Getting the rotors "turned" to get off the pad area powdercoat
may be a better option than wearing it off with old pads?

To avoid a potential headache mess of burned off powder coat everywhere I would go along with Mystic's suggestion and take them down to your local brake shop and have the coating turned off the contact surface with a brake lathe.

Thanks for the feedback. The OE rotors on my Z06 seemed to rust quickly. I brushed high temp paint on the rotor hubs and outer edges of my Z06. This stopped the rust. The brake pad contact area, however, did not extend to the outer edge of the rotor surface. When I brushed on the paint, I didn't tape. I let the brake pads clean up the rotor surface leaving a perfect outer diameter annular ring on braking surface of the rotor.

When I brushed on the paint, I obviously didn't cover the entire rotor contact surface. With these rotors, to get the outer edge cooling fins and drilled holes painted, and to avoid the cost of all the tapping, I had them paint the entire wheel (except the contact area for the parking brake). For the cost of the tapping, I could have almost bought the Coleman 2pc. rotors built by Performance AFX (I'm exaggerating but it would have been expensive)!

I was going to wear the powder coating off with the old OE pads. Once the powder coating was worn off the rotor suface I was going to install new Hawk pads. Do you think wearing off the black powder coat and leaving the annual ring will make an unnessary mess? Do you think I risk hosing up the freshly powder coated calipers?

[RussMcB]

Looks great!

I'm not sure if I followed the description accurately, but I hope it's not saying the whole rotors were powder coated. If yes, I'd be more comfortable after having the rotors turned so your pads are not contacting the powder coat. As has been mentioned by others in this forum, the initial bedding is important, and you don't want unwanted material embedded into the rotors.

Perhaps you can mount the rotors temporarily, install the pads and do some very light braking, only to show the part of the rotor that needs to have the powder coating removed.

[carter200]

If you need the powdercoating machined off email me and I can do the job.

[Vette73]

Love the look of the tire and wheel package ....So these are stock size Z06 wheels and tires?

Forgive me for being too lazy to check out page one....Lol...

[Vette73]

Ok just looked, got it.....I see you used a spacer for the rear? So the Fitment was no problem!

[5ABI VT]

Love the c6 zr1 wheels in silver and dislike them in chrome or black. If it were me Id go 19 all around and widen the rears to 12. Might need a spacer in the rear but I always thought they would look stunning. Cant go wrong with those ccws either those are timeless =D>

[HIZNHRZ]

This ZR-1 is now for Sale.

[dredgeguy]

Scott, hope it sells out the Mid-Atlantic area so some of us can have a chance to win a local car show:) You have a great looking car and good luck with the sale.
Sent you a PM a few days ago.

[Vette Guy]

Beautiful ZR-1.... sorry to see you selling her....

[TopCorvetteFan]

Is there a link to a for sale description/listing?

Thanks...

[HIZNHRZ]

No for sales ad at this time. Independent information from someone who knows this car as well as the owner can be acquired by talking to Marc Haibeck. It will not be difficult for a motivated buyer to get information.

Please PM with questions or requests for information and pictures.

[dredgeguy]

Scott, sent you a PM