What's your exhaust ground clearance? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

hawkyV8 · 09-13-2021, 11:21 AM

So the other day I spot a buddy in town as I'm driving by. Since he's a car guy too I decide to nail the gas and show off a little. Much to my surprise he said when I nailed the gas and went over a buckle in the pavement there was a huge shower of sparks. I never knew because my car is loud.

So when I got home I decided to see what caused it. Some quick measuring showed me that I only have 3 inches of clearance on the exhaust in two places. I run 18" wheels so I'm already 1" lower than stock. I was planning on installing lowering springs next summer but now I'm worried I'll have lots of issues.

Anybody else sitting at 3" or less? Any issues?

Omega · 09-13-2021, 12:04 PM

What do you mean, your 18" wheels have lowered the ground clearance? What size tires do you have?

Where is the lowest point? By the diff, headers or somewhere else?

Sent from my Pixel 4 XL using Tapatalk

InFiD3ViL · 09-13-2021, 01:30 PM

I am on coilovers with a nearly 1.75 inch drop and have low hanging header collectors. The only time I have ever had a clearance issue was doing 85mph on a highway that had some uneven pavement sections, causing the car to undulate up and down for a second or two, hitting the collectors.

But around town, over speed bumps and crappy roads? No issues as long as you drive normally and are aware of the conditions.

hawkyV8 · 09-13-2021, 02:10 PM

Quote:

Originally Posted by Omega

What do you mean, your 18" wheels have lowered the ground clearance? What size tires do you have?

Where is the lowest point? By the diff, headers or somewhere else?

Sent from my Pixel 4 XL using Tapatalk

My tires are 285/40/18 so 2" less diameter than stock 20's which yields a 1" less ride height. The lowest points are the right side collector and one of the hangars in back.

Camaro2ss2010 · 09-13-2021, 07:23 PM

My collectors drag on speed bumps. I’ve yet to go over any with my cutouts but I’m sure they won’t like it either.

Rob3D · 09-13-2021, 07:41 PM

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wasthatacop? · 09-13-2021, 11:01 PM

I'm on 20" with 1.4 drop springs. I rub a lot on speed bumps, an have to be very mindful of the terrain. I'm guessing my clearance is 4"

Neighborhood kids were driving RC cars in front of my house a few weeks ago and one of the toys got stuck under my car.

redrum_maro · 09-14-2021, 01:18 AM

Running ZL1 wheels wrapped in 285/35 R20 front and 305/30 R20 rear, long tubes and cutouts, coilovers at 1 inch drop. Has me sitting 1.75 inches lower measured from the fenders. The lowest points are my collectors and cutouts sitting roughly 2.5 inches above the ground. Have to be very careful where I enter and what speed bumps are ahead. Have had two bad experiences where my cutouts have gotten me stuck and had to be pushed out. While driving on canyons I've been told by trailing cars that on rough patches or little drops in elevation they have seen sparks be shot underneath my car.

09-13-2021, 11:21 AM	#1
hawkyV8 Drives: 2010 Camaro SS 6m Join Date: May 2020 Location: Iowa Posts: 62	What's your exhaust ground clearance? So the other day I spot a buddy in town as I'm driving by. Since he's a car guy too I decide to nail the gas and show off a little. Much to my surprise he said when I nailed the gas and went over a buckle in the pavement there was a huge shower of sparks. I never knew because my car is loud. So when I got home I decided to see what caused it. Some quick measuring showed me that I only have 3 inches of clearance on the exhaust in two places. I run 18" wheels so I'm already 1" lower than stock. I was planning on installing lowering springs next summer but now I'm worried I'll have lots of issues. Anybody else sitting at 3" or less? Any issues?

09-13-2021, 01:30 PM	#3
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,586	I am on coilovers with a nearly 1.75 inch drop and have low hanging header collectors. The only time I have ever had a clearance issue was doing 85mph on a highway that had some uneven pavement sections, causing the car to undulate up and down for a second or two, hitting the collectors. But around town, over speed bumps and crappy roads? No issues as long as you drive normally and are aware of the conditions. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

09-13-2021, 07:23 PM	#5
Camaro2ss2010 Drives: 2010 Camaro 2SSRS M6 Join Date: Jan 2019 Location: Alabama Posts: 1,249	My collectors drag on speed bumps. I’ve yet to go over any with my cutouts but I’m sure they won’t like it either. __________________ ECS supercharger, custom ground cam, ported throttle body, long tube headers, aeromotive fuel pump, fic injectors, ATI super damper, Corsa Extreme exhaust, elite engineering catch can and many other things.

09-13-2021, 11:01 PM	#7
wasthatacop? Drives: 2010 2SS Join Date: Apr 2017 Location: Los Angeles Posts: 360 View My Garage	I'm on 20" with 1.4 drop springs. I rub a lot on speed bumps, an have to be very mindful of the terrain. I'm guessing my clearance is 4" Neighborhood kids were driving RC cars in front of my house a few weeks ago and one of the toys got stuck under my car. __________________ 2010 2SS living in Los Angeles replaced engine @ 93,000 miles w/ crate engine, camshaft by Comp Cams installed by me, replaced valve train parts, 1.4" BMR lowering springs ZL1 factory rims misc: drilled and slotted rotors, fresh air brake cooling system, new speakers, installed reverse camera, muffler delete

09-13-2021, 12:04 PM	#2
Omega Drives: G8 Join Date: Mar 2012 Location: NJ Posts: 251	What do you mean, your 18" wheels have lowered the ground clearance? What size tires do you have? Where is the lowest point? By the diff, headers or somewhere else? Sent from my Pixel 4 XL using Tapatalk

09-13-2021, 07:41 PM	#6
Rob3D Drives: Car Join Date: Jan 2013 Location: Alabama Posts: 1,192

09-14-2021, 01:18 AM	#8
redrum_maro Runs on caffeine Drives: 2010 Camaro SS Join Date: Apr 2020 Location: Somewhere driving fast Posts: 120	Running ZL1 wheels wrapped in 285/35 R20 front and 305/30 R20 rear, long tubes and cutouts, coilovers at 1 inch drop. Has me sitting 1.75 inches lower measured from the fenders. The lowest points are my collectors and cutouts sitting roughly 2.5 inches above the ground. Have to be very careful where I enter and what speed bumps are ahead. Have had two bad experiences where my cutouts have gotten me stuck and had to be pushed out. While driving on canyons I've been told by trailing cars that on rough patches or little drops in elevation they have seen sparks be shot underneath my car.