Avoiding Ground Clearance Obstacles
I'm a potential buyer in a few months, and plan to daily this car in New England. It will not be garaged, it will be driven in the winter, and it will get roughed up. I'm ok with all of that and will plan accordingly. However, the one thing I can't get out of my head is the ground clearance. My apartment complex has 2 relatively nice speed bumps, but my work has some nasty triangular spike strips (3.25" height I think). Also, I live in Rhode Island with just pathetic road maintenance so there are potholes and all types of raised/lowered obstacles around. I've done enough research to be mostly certain that this is all doable, I've searched threads and posts, watched youtube videos, and will test drive one soon. What I haven't been able to find is any good descriptions of what it's like to drive around such roads.
How often do you have to avoid obstacles, take bumps and ramps sideways, drive slower just to have enough time to plan your attack? Is it so constant that it would drastically reduce the fun of owning such a car in my area?
I sort of plan on a base 2LT but maybe a Z51 2LT, but I don't want extra aero pieces below the base ground clearance.
When driven. It is drove like my Harley.Constantly looking at the road surface.I know the alloy rims and precise light suspension ain't designed for pot holes.
You can drive and not pay attention But it may cost ya
The Change in seasons and Traffic Volume eats these roads up.
Last edited by PobreWey; Dec 22, 2017 at 09:20 PM.
The Best of Corvette for Corvette Enthusiasts
My driveway is really tough, I had a rental Nissan Maxima two weeks ago, and its front bumper rubbed the apron. My C7's do okay if I go slow (to avoid suspension compression) and angle it a little (2014 Base & 2018 GS without front splitter). The biggest issue is visibility of low objects forward - the front camera on the 2LT & 3LT help quite a bit.
Added a spitter to my 2014 and have the optional carbon fiber Stage 2 aero option splitter on my Grand Sport. 5 inch clearance that should be no issue with speed bumps when you drive slow. However going down a step driveway is an issue at the street intersection. Those have to be avoided. Can gain some clearance by pulling out at an angle. I added a Scrape Armor splitter protector. Those are also available for cars with no splitter to protect the protruding bumper that is only about 6 1/4 inch clearance. Scraped one side on a curb before I added a splitter to my 2014 C7! Was much more careful after and splitter! It did cover the scrape, the new owner will see if they remove the splitter!
Depending on the model, there are either side or side and center rubber air dams. They have only 3 1/2 inch clearance but bend backward. They also provide and early warning that the next lowest thing that will hit are aluminum "skid pads" or "radiator supports, which GM calls them. They provide both functions. Had installed FANG protectors on my 2014 C7 and hit them a few times, no damage. Installed on my Grand Sport and so far not hit them. See pic below. (Not as hard to have happen as first might appear! There is one mall entrance with a dip and strep entrance. When I travel slowly no issue. But had several occasions where an AH is coming around a bend at a high rate of speed and was forced to accelerate. Combo of speed and dip and scrape! Have a few spots like that and some entrances I won't drive in and park a distance away.) May want to add FANGs, inexpensive, easy install. Scraped them on my C6 several times. Some think the rubber air dams scraping cause an objectionable noise. When those aluminum skid pads hit pavement it makes the rubber air dam noise sound like music!
As someone mentioned, buy wheel and tire insurance for pot holes. I bought tire insurance at Discount Tire for $250 just for the tires (that are nail magnets.) Have few pot holes in Eastern SC but wheels can break if you hit one at speed.
My biggest concern are 18 wheeler tire treads on the interstate. They can take out a $1200 splitter! Just had to make an evasive maneuver around one the other day. Best know where all cars are around you if following an SUV etc as they just driver over what will cause big issue for you! Then you can steer around. Had friend with a C6, no splitter etc that road over one and it wrapped around and axle. Expensive repair.
Top pic, C6 Scrapped Skid Pad, terrible noise! Middle pic, Skid Pad Part. C7 Protector FANG Installed on 2014 C7. Also installed on Grand Sport
Last edited by JerryU; Dec 23, 2017 at 08:05 AM.
The tell-tales for me were two large speed bumps on the main road near my house and a steep incline on a road near the exit from work. Scraped both consistently in the C6 but nothing in the C7 Z.
Yes, you'll want to be aware of the nose but the C7 is actually an improvement...
/r
Allen
I'm a potential buyer in a few months, and plan to daily this car in New England. It will not be garaged, it will be driven in the winter, and it will get roughed up. I'm ok with all of that and will plan accordingly. However, the one thing I can't get out of my head is the ground clearance. My apartment complex has 2 relatively nice speed bumps, but my work has some nasty triangular spike strips (3.25" height I think). Also, I live in Rhode Island with just pathetic road maintenance so there are potholes and all types of raised/lowered obstacles around. I've done enough research to be mostly certain that this is all doable, I've searched threads and posts, watched youtube videos, and will test drive one soon. What I haven't been able to find is any good descriptions of what it's like to drive around such roads.
How often do you have to avoid obstacles, take bumps and ramps sideways, drive slower just to have enough time to plan your attack? Is it so constant that it would drastically reduce the fun of owning such a car in my area?
I sort of plan on a base 2LT but maybe a Z51 2LT, but I don't want extra aero pieces below the base ground clearance.





Seems like the GM Exec's (Harlen) and others can get the Michelin Alpin PA4 but the rest of us can't find them..... They make them, but they say unavailable everywhere I've looked. Not that I"m going to drive our car in the snow, but it would be nice to run it when it's below 40 degrees F.
Last edited by Strake; Dec 23, 2017 at 10:51 AM.
Seems like the GM Exec's (Harlen) and others can get the Michelin Alpin PA4 but the rest of us can't find them..... They make them, but they say unavailable everywhere I've looked. Not that I"m going to drive our car in the snow, but it would be nice to run it when it's below 40 degrees F.
However you can get Pirelli Sotozero Winter tires that fit. As I recall the rear are a bit narrow, like 325 but the same diameter as the OEM 345s. For Winter narrower is better anyway.
Like I did when living in CT 35 years ago, just get another set of wheels for Winter.
Could always buy a Ferrari FF, it comes with Sotozeros!

Last edited by JerryU; Dec 23, 2017 at 11:02 AM.
PS: I recall having to make a lot of measurement for my modified '67 Corvair where I applied a Plus 1 approach, when Plus 1, etc was not a word used! Nor was tire "profile" a published parameter. But those Continental 714s looked so good at the NY Auto Show and the rep made them sound exactly what I needed! But the minimum diameter was 14 inches! Found that custom aluminum wheels from a larger Chevy fit and had the right offset. Those Continentals fit great- just needed to measure the diameter!

They worked so well in wet and dry that when I bought my 260Z had the dealer put them on custom aluminum Minilite wheels and tossed the narrow steel Z wheels!
Last edited by JerryU; Dec 23, 2017 at 11:14 AM.


















