veryhot_post in Exhaust for maximum ground clearance in Exhaust Author Topic: Exhaust for maximum ground clearance  (Read 2561 times)

Offline Scooter

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Exhaust for maximum ground clearance
« on: April 18, 2020, 11:49:10 AM »
Hi all, looking for general advise on exhaust for ground clearance. Love the stance of my Challenger but I'm scraping pavement nearly every time I take it out for a drive. Honestly don't know how the previous owner took this thing anywhere... lol.

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Got a whopping 2" of ground clearance on the passenger side with no one in the car. That neat dimple at the front of the header was the result of the mechanic trying to get it on an alignment rack after installing SPC adjustable upper A arms to get correct camber. The mufflers at the rear bottom out occasionally as well if I hit a good whoopey-doo on the highway over 75mph. Currently has a set of Hooker Super Comp's and Pypes 2-1/2" exhaust.

Plan is to install a set of TTI shorty's and have 2-1/2" exhaust (with X-pipe) all the way back and have a set of mufflers only just prior to the exhaust tips up high next to the tank. Like the sound (and location)of the Magnaflows Topcat has on his Cuda and am leaning in that direction. Would like to purchase as much of it as possible from TTI to avoid issues. A few folks with the TTI shorty's have noted their Header adapter pipes could be up closer to the bottom of the car. Will give TTI a call and see how much they can help out.

I have already purchased a 90 degree oil filter adapter and it's on the way. Anything other considerations I need to be mindful of?

-Scott



Linkback: https://forum.e-bodies.org/exhaust/17/exhaust-for-maximum-ground-clearance/15820/

Offline 7212Mopar

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Re: Exhaust for maximum ground clearance
« Reply #1 on: April 18, 2020, 12:41:11 PM »
You should not have ground issues with shorty headers and even full length TTI that goes above the steering linkage. TTI exhaust system had issue with their straight header adapters but they have a fix for that. Just talk to Sam at TTI. A few of us got the fix and there is thread on here. Is this small block or big block.
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Offline Scooter

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Re: Exhaust for maximum ground clearance
« Reply #2 on: April 18, 2020, 02:06:23 PM »
^^ Small block 360. Did not see mention of a fix in the threads I have read.. can you please link?

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Re: Exhaust for maximum ground clearance
« Reply #2 on: April 18, 2020, 02:06:23 PM »

Offline RUNCHARGER

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Re: Exhaust for maximum ground clearance
« Reply #3 on: April 18, 2020, 02:29:55 PM »
Hooker should just quit making headers altogether. Their Mopar headers have been junk for decades, they could easily have updated their obsolete designs and poor workmanshhip by now.
Sheldon

Offline floorit426

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Re: Exhaust for maximum ground clearance
« Reply #4 on: April 18, 2020, 03:51:16 PM »
 :iagree:

Offline usraptor

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Re: Exhaust for maximum ground clearance
« Reply #5 on: April 18, 2020, 04:21:03 PM »
I realize it's a different engine, but I'm running the TTI long tube headers on my '70 'Cuda with a 440 and have no issues with the headers or exhaust hitting.  And the front of my car has the torsion bars adjusted so it sits lower than normal.

Offline anlauto

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Re: Exhaust for maximum ground clearance
« Reply #6 on: April 18, 2020, 04:38:46 PM »
How about a picture of your car to get an idea on it's stance ? Your current header clearance sucks :thumbdown:
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Re: Exhaust for maximum ground clearance
« Reply #6 on: April 18, 2020, 04:38:46 PM »

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Re: Exhaust for maximum ground clearance
« Reply #7 on: April 18, 2020, 06:25:15 PM »
I've looked at the TTI long tube, best photos installed I've seen puts the collector right at or just below the tranny pan. Might still be too low. If anyone has them installed and would care to post up some pics I'd be happy to look at them. Shorty's seem to be the best bet to guarantee ground clearance.

Side view
fetch?id=999&d=1587259054 in Exhaust for maximum ground clearance in Exhaust

Ground level
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From the collector back
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Offline MoparLeo

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Re: Exhaust for maximum ground clearance
« Reply #8 on: April 18, 2020, 06:44:54 PM »
One thing to do is to check what the ride height is set at. Then compare to what it should be. All exhaust clearances are based on what the factory recommended ride height is. The specs can be found in section 2-30 of your 1973 Dodge Chassis Service Manual.
https://www.aa1car.com/library/ride2h.htm
« Last Edit: April 18, 2020, 07:10:20 PM by MoparLeo »
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Offline 7212Mopar

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Offline GoodysGotaCuda

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Re: Exhaust for maximum ground clearance
« Reply #10 on: April 18, 2020, 07:17:42 PM »
a983ada0ef6c17f9cef5a91bd3665cbd in Exhaust for maximum ground clearance in Exhaust

Gen3 Hemi TTI headers, front is lowered a bit.


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Re: Exhaust for maximum ground clearance
« Reply #10 on: April 18, 2020, 07:17:42 PM »

Offline 7212Mopar

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Re: Exhaust for maximum ground clearance
« Reply #11 on: April 18, 2020, 07:43:15 PM »
I am running 245/45/17 front and center of wheel fender arch is about 24.75" from ground, on the low side. But I am running Hotchikis 1.1 torsion bar. The TTI header flange end is about 3.25" to the floor. I don't have ground clearance issue after the TTI tail piece fix and I have a sloped driveway. If you have taller tires, you will have more clearance.

Offline screamindriver

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Re: Exhaust for maximum ground clearance
« Reply #12 on: April 18, 2020, 07:59:29 PM »
Maybe I was one of the lucky ones.. My Hooker Super Comp headers{1 7/8th primaries} had no issues with ground clearance..I used one of the first TTI 3 inch H pipes for a gear vendors OD and had to report on the fit...From there it was the standard TTI 3 inch exhaust..The exhaust can only be so close to the floorpan...If the vehicle is lowered from the factory ride height there's not much to be done other than a full custom exhaust with some creative routing.. :alan2cents:

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Re: Exhaust for maximum ground clearance
« Reply #13 on: April 18, 2020, 08:06:42 PM »
Thanks for the photo Goody! You've got more than double my clearance at that location and does not look like yours have ever touched asphalt.

Current tires Back BFG 255-60r-15 102s, Front BFG 255-60r-15 95s. Engine and tranny mounts look correct. Torsion bars are adjusted down.

Here is a shot from the rear forward.

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Re: Exhaust for maximum ground clearance
« Reply #14 on: April 18, 2020, 08:25:35 PM »
I have Pypes 2.5 exhaust as well.. my mufflers appear to be higher up than what I'm seeing in your photo 

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I've got the cheap Hooker Headers, routed the exhaust through the cross member

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Re: Exhaust for maximum ground clearance
« Reply #14 on: April 18, 2020, 08:25:35 PM »

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