HHR With Dual Exhaust Spotted!
Banned
Joined: 10-14-2005
Posts: 9,121
From: Rochester,N.Y.
Originally Posted by SoCalHHR
Why anyone would want to drive around without a spare is beyond me!?! 
That's just pushing it too far....
That's just pushing it too far....
I didn't carry a spare in my Mustang because I had run flats. 
Thread Starter
Senior Member
Joined: 10-14-2005
Posts: 5,359
From: SoCal
Yeah - OK, well...one exception. How many HHR owners have them? I think at this point, most are running on stock tires.
Of course, I have a family to worry about. There's no way I'm letting my wife and kid ride in a car with no spare.
Of course, I have a family to worry about. There's no way I'm letting my wife and kid ride in a car with no spare.
Senior Member
Joined: 08-30-2005
Posts: 95
From: Northeast Ohio
First off, my apologies for using SoCal's exhaust routing picture. 
The below is a VERY rough change on how it COULD be accomplished without causing any issues with the gas tank, fuel lines or evap equipment.
Bear in mind, I would NEVER attempt such a thing but only doing this as a possible senario for the before posted picture.
Cheers,
E
The below is a VERY rough change on how it COULD be accomplished without causing any issues with the gas tank, fuel lines or evap equipment.
Bear in mind, I would NEVER attempt such a thing but only doing this as a possible senario for the before posted picture.
Cheers,
E
Thread Starter
Senior Member
Joined: 10-14-2005
Posts: 5,359
From: SoCal
Yeah, we looked at that option. The two main problems are:
a) the crossover pipe will be visible from behind as the tire bay is too low.
b) the tire bay would be subject to excessive heat, which could damage the spare tire.
Your ovalized crossover pipe might work. Whenever you run a "Y" like this the flow into the furthest outlet is conpromised anyway, it's usually about 75/25% flow, as exhaust gases always take the path of least resistance.
We are just trying to address safety issues, as safety is more important than looks anyday!
a) the crossover pipe will be visible from behind as the tire bay is too low.
b) the tire bay would be subject to excessive heat, which could damage the spare tire.
Your ovalized crossover pipe might work. Whenever you run a "Y" like this the flow into the furthest outlet is conpromised anyway, it's usually about 75/25% flow, as exhaust gases always take the path of least resistance.
We are just trying to address safety issues, as safety is more important than looks anyday!
Last edited by SoCalHHR; Mar 20, 2006 at 05:42 PM.
Senior Member
Joined: 08-30-2005
Posts: 95
From: Northeast Ohio
Yes the flow is compromised but the heat issue would be somewhat addressed because of the reduced volume of exhaust gases. With the ovalized piping it would not be visible from behind. One could also add resonating tips to further reduce excess exhaust volume/sound.
Again, this is not my idea of a good dual exhaust but a possible solution for the questioned exhaust on the pictured HHR.
:)
Again, this is not my idea of a good dual exhaust but a possible solution for the questioned exhaust on the pictured HHR.
:)
