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Exhaust H-Pipe Observations

66 Sat

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Australia
Last week I had a H-Pipe fitted to the exhaust of my 66 Satellite. Not only is the car much quieter at a 3000rpm cruising speed (you can actually have a conversation with your passenger without yelling at each other), the throttle response is way better at low rpm. Both of these improvements were expected.
What was unexpected is when I park in my garage after driving it, the smell of fumes is hardly there at all, when before you could smell the car for a few hours after. I'm guessing the scavenging effect is making the car more efficient and before the exhaust gases would have been in the pipes after I shut the car off, and then escaped into the garage.
$80 well spent.
 
That is a lot of good from an $80 H pipe!
I bought a 3" diameter prefabricated X exhaust pipe crossover and had a local shop weld it in. It's compact and I know it boosts performance.
The Flowmasters, 3" diameter of my exhaust system, and the X pipe all contribute to the performance being equal to what I get when I open my header cutouts.
Through the mufflers is on the loud side, but no buffeting sound or droning, and I like to hear the chop of the cam.
 
My local mom and pop exhaust shop recommended a H Pipe for mechanical integrity. Didn't notice any performance change, but I love the sound. Even when I pulled into the driveway my wife commented on the sound improvement.
 
My local mom and pop exhaust shop recommended a H Pipe for mechanical integrity. Didn't notice any performance change, but I love the sound. Even when I pulled into the driveway my wife commented on the sound improvement.
That's especially important if your WIFE likes it....means that you get to live there another month or two! LOL!
 
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