Incremental lowering

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Feb 20, 2018 | 08:16 PM

trevor90

Thread Starter

Pro

Joined: Nov 2017

Posts: 591

Likes: 164

From: South FL

Incremental lowering

I know,... another thread on lowering on stock bolts.. but, i don't think ive seen this addressed.

I have the car up in my frame rack, i just did my stage 3 lip, now i'm thinkiing i should lower the car.

From what i've seen it seems everyone is lowering the car all the way, i'd like to NOT do this. My question is, can the bolts be lowered in increments? If not, how do i make sure the car is lowered evenly on each side? I really don't think i want to go all the way down.

Feb 20, 2018 | 08:28 PM

MustOBeenYellow2015Z

Burning Brakes

Joined: Jan 2015

Posts: 811

Likes: 177

From: Virginia

I haven't done my C7Z but the way I did my C5Z was put the car on electronic scales, write down the wheel weights, then I lowered mine all the way down & made sure I still had the same wheel weights as it came from the factory (That told me I lowered it evenly). I don't know if putting the car on scales is necessary but Im OCD & thats how I did my C5Z.

Quote:

Originally Posted by trevor90

Feb 20, 2018 | 08:57 PM

DJackman

Drifting

Joined: Nov 2004

Posts: 1,923

Likes: 62

From: California

Lowering

I lowered mine all the way on the rear and I left 2 full turns for the front and it rides the same and able to save scapes

Feb 20, 2018 | 10:46 PM

pkincy

Safety Car

Joined: Jun 2003

Posts: 4,250

Likes: 656

From: San Diego Ca

I counted the turns on each bolt when I lowered my C6Z. I have not lowered the C7Z. I scrape enough at the stock height.

Feb 20, 2018 | 11:34 PM

sunsalem

Race Director

Joined: Sep 2014

Posts: 11,905

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I had the dealer today lower my Z 3/4 of an inch.
By the time it settles, it might be a total of one inch.
Not sure if I want to go lower just yet...will wait and see.

Feb 21, 2018 | 12:51 AM

Connman

CF Senior Member

Joined: Sep 2015

Posts: 1,700

Likes: 148

From: Tucson, AZ

St. Jude Donor '17

Should be able to just measure the height of the bolt protruding through the top of the hole, no?
Or just crank it all the way up, line the bolt with a sharpie, and count the number of full turns you back it down..?

Feb 21, 2018 | 12:54 AM

Connman

CF Senior Member

Joined: Sep 2015

Posts: 1,700

Likes: 148

From: Tucson, AZ

St. Jude Donor '17

Quote:

Originally Posted by sunsalem

I had the dealer today lower my Z 3/4 of an inch.
By the time it settles, it might be a total of one inch.
Not sure if I want to go lower just yet...will wait and see.

Isn't it crazy the variance in dealerships... My local dealership (which isn't where I purchased), said they won't touch the lowering bolts - and their reasoning was that by them doing so, it would void any warrantied suspension issues.

Feb 21, 2018 | 12:05 PM

mikegaan

Racer

Joined: Sep 2012

Posts: 342

Likes: 52

I did not lower mine all the way, just enough to eliminate that 4-wheeler look. Also put in a slight nose-down rake (1/4" lower in front). Total drop about 1" (it will sink a bit further with a little time/mileage), measured from top of wheel arch to ground. Adjustment increments are infinite, as in you can turn the bolt as little or as much as you like. I did not use corner scales to make the adjustment, just a tape measure. After lowering, I checked and the corner weights were within 20 lbs. If you're going to track the car, sit in it and have someone else read the corner scales.
I then had a 4 wheel alignment done. Happy with look and ride, no issues with scraping.

“...And, as posted elsewhere, each 360 degree turn results in a 0.0791 height adjustment; ergo, a 540 degrees of turn will give you 1/8" difference. (John ‘Elegant’).

Here's an excellent post re. lowering

https://www.corvetteforum.com/forums...nd-photos.html

Last edited by mikegaan; Feb 21, 2018 at 12:10 PM.