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Discussion Starter · #1 ·
After getting one of my over the frame rail headers caught on a obstacle and bending the hell out of it this weekend I'm up for a new setup. I plan on useing the ramhorn or blockhugger type manifolds, but where to go after that? The cruiser has a 350, sm420, and 3 speed case and there isnt any room on the passenger side between the t-case and frame to route the pipe. My motor is mounted forward enough to run the passenger side pipe over the bellhousing to the drivers side then run the two together to the back of the cruiser. Anyone have their exhaust done like this? Any other ideas? I dont want to run the pipe under the t-case, that would hang to low. Also, does it matter how far or close the mufflers are mounted to the engine?
 

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I have a similar set-up, 350, 465, 3 speed case.
I have Hooker ceramic coated block hugger headers. From there they go into 2 1/2" pipe.
The pass side comes down and under the oil pan, comes across and Y's into the drivers side.
It then becomes 3" and follows the inside of the drivers side frame rail.
It follws the angle of the frame in the back when it angles up, continues back and goes out behind the left rear wheel.
It has a cat next ot the 465 that I have put a heat shield on and the muffler is where it angles up just in front of and above the axle.
The cat is the only thing that has ever hit anything cause it hangs down a hair under the frame rails. But it is fixing to come off.
My engine is a TBI 350 and it runs really well with the setup I have.
Let me know and I can put up some pics, it will give me an excuse to go out in the garage.
 

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You should get some of those "out the fender" headers and run the pipe to a big ass muffler right underneath your rocker. That way your spotter gets asphyxiated, and the exhaust can get hung up on...oh never mind. <IMG SRC="smilies/thefinger.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0">
 

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I run hugger headers, 2.25" initial pipes to a crossover, and 2.5" straight out the back. The only place where the exhaust is below the frame rail is where the oil filter is located (room to remove) and where it exits just inside the drivers side rear spring shackle. Muffler is located "next" to the rear driveshaft. Crossover was custom made...passenger pipe runs beneath the oil pan and connects almost immediately. I run a FLAT skid plate with a cutout for the TC, and the exhaust runs above it...nothing to catch on.
 

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Old Rock Doc
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Here is a view of the exhaust system on my FJ40. It uses 2.25" stainless tubes to a Y located aft of the transfer case and then a 3" tube from there. The crossover is beneath the oil pan.


The entire system is above the frame. As you can see there is plenty of room on the driver's side, even for my Cats (ok kittens. <IMG SRC="smilies/wink.gif" border="0"> The only problem I have with this system is that on full compression of the passengers front, my driveshaft front u-joint hits the crossover tube.Keep this in mind if you crossover under the oil pan.
 

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Great info everyone.

I just ordered a set of Dynomax huggers Friday, and was wondering about the routing myself.

I have a pre smog cruiser so I don't have to worry about cats.

Any more pics?
 

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Discussion Starter · #7 ·
Ok, seems like most people are routing the passenger side under the oil pan. I was hoping to keep the duel exhaust but it would be cheaper to run just one 3" pipe and 1 muffler. Also, I seem to remember reading somwhere that the engine gets a little more low-end torque with a single exhaust. Or maybe it was the addition of a cross over pipe that gave a higher torque number.

Fecamel- Dont blame your crappy spotting on the exhaust fumes. You were <IMG SRC="smilies/rasta.gif" border="0"> way before then. <IMG SRC="smilies/rolleyes.gif" border="0">
 
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