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2020 Corvette of the Year Finalist (appearance mods)
C7 of Year Winner (appearance mods) 2019
2017 C7 of Year Finalist
2015 C7 of the Year
St. Jude Donor '14-'15-'16-'17-'18-'19
Originally Posted by pnsnkr
Has anyone observed noticeable degradation in cooling efficiency in either daily drive use mode or on track after lowering the car by this method?
None here...still within specs if you aren't changing the lowering bolt to go even lower.
Originally Posted by SMT1004
Quick question. Process to lower shows putting car on jack stands then to jack up each wheel off the ground by jacking up on the leaf spring to off load the wheel. Any problem just jacking up on the leaf spring, while car sitting on the ground?
Be sure to protect your leaf spring regardless of how you off load the wheel.
Just did this today although this before pic is from a few weeks ago.
I got 1/2 inch lower in the rear and 3/4 inch lower in the front on stock bolts maybe is will settle a bit more in the coming days? if not iam fine with it....not a huge overall difference in appearance but i can tell there is less body roll in general and it does look better.
Has anyone else had unbalanced tire wear issues after lowering the C7 on stock bolts? I got an alignment done(at the dealership) right after I lowered the car and another a year later. Both reports said they were fine. I'm having uneven tire wear on the inside of all tires now. Prior to lowering I had no wear issues and the OEM Michelin ZP tries wore evenly.
2020 Corvette of the Year Finalist (appearance mods)
C7 of Year Winner (appearance mods) 2019
2017 C7 of Year Finalist
2015 C7 of the Year
St. Jude Donor '14-'15-'16-'17-'18-'19
I had no idea the photos had disappeared, but fortunately I found them on my laptop (except for the before and after of the rears). I loaded the photos again on the first post.
Has anyone else had unbalanced tire wear issues after lowering the C7 on stock bolts? I got an alignment done(at the dealership) right after I lowered the car and another a year later. Both reports said they were fine. I'm having uneven tire wear on the inside of all tires now. Prior to lowering I had no wear issues and the OEM Michelin ZP tries wore evenly.
Originally Posted by C7s
Looks like they gave you the track alignment instead of stock alignment.
Not sure a "dealer" would call it a "Track or Street" alignment. GM has one alignment spec and all camber for all C7s is +/- 0.60 degrees. Therefor a Grand Sport can vary from -0.5 to -1.7 degrees and show as OK Green on an alignment machine. Tech can and often will just say, "All's Fine," if within that wide range.
You have to tell most what you want, i.e. if you have no other thought the centerline on all specs. Toe is also important for tire wear and should be set close to zero, which is about where the GM centerline is.
Note, I'd forget trying to specify rear caster if at a dealer as many do not have the measurement tool and even IF they do they might not have the skill to use it! Those are a different set of adustments and there are forum posts where it was screwed up and caused significant handling problems. If Tracking, go to a shop who has the experience and skill to measure and set rear caster as you'll probably want a camber outside the GM spec anyway. Some Tracking specs are published on the Forum.
03-16-2018, 02:21 PM
