Back in 2012, I wrote and article about how absurd Obama’s 54.5 mpg CAFE regulations were. You can see that article, which is still relevant, here. One of the things I mentioned in that article was how Jimmy Carter did a similar thing back in the 70’s but thankfully was repealed by the Regan administration. History seems to repeating itself because news came today that the Trump EPA is rolling back the totally insane Obama era plan.
A while back I received this Flowmaster Pro Series muffler as a promotional item from Autoanything.com. I have been sitting on the muffler for quite some time when after an alignment shop somehow managed to damage my exhaust, I had the perfect excuse to install it. I can now finally report back on this interesting muffler design.
The small block chevy is the iconic hotrodders engine. Its been around since 1955 and is even still made new today for the aftermarket. Without too much trouble, 400hp out of one of these engines isn’t hard to achieve. But in this modern age where we see 350hp out of NA V6’s and now turbo 4 cylinders with that level of output, 400hp doesn’t really sound or feel all that special. Is it possible for the hotrodders mainstay to compete with modern engines?
My current state of affairs
When you open a shop manual for setting pinion angles or look it up online, generally, they give a specification for what it should be for your car. But, if your car has been modified, which it most likely is because you’re reading this, the pinion angle listed probably wont work.
My car was designed for a T5 transmission which was substantially smaller than the T56 I now run. I might have been able to get the correct driveline angles if I ran my car at the factory ride height, but since my car is lowered, the large size of the T56 limited how high I could raise the transmission to correct the angle at the front U-joint. The solution was to make an extension over the trans tunnel to allow it to be raised.
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Some time ago, I ran across an interesting muffler design from Flowmaster. The design used two perforated sheet metal cones mounted point to point inside the muffler case. Back then, the muffler was called the “Hush Power” series; but now they are calling it the “Pro Series” line. Strangely, They also have a smaller pipe diameter version called the DBX series; I’m not sure why they name those differently.