re: "Tunnel" shot. Both barrels.
On a previous project (79 vert) I ran mild (1 1/2" or 1 7/8" ish, to long ago) steel tubing for the water lines straight down the tunnel. I utilized the small access panel in the front (for the shifting rod) to get the pipes in. And cut two oval wholes out the back/bottom just below and before the horns split.
It really worked well. Everything was pretty much kept inside. There was no shifter interference and I don't belive my shot threw the rear tunnel had any impact on the pan. I did have a few "hang ups" as I tried to pass the pipes down and back. But nothing that a sledge couldn't handle :wink:
I'm guessing it was more work than attaching directly to the bottom of the pan. But it sure cleaned up things. I kinda' remember the tunnel feeling warm(er) but nothing I would change next time.
Actually, what I might try with my current sedan. Since I'm running a type II trans with the shifter "over the top. Pumping the entire tunnel full of a (light weight) insulation foam? I would be insulating the watter lines and (guessing here) cutting down on a serious noise producer? I'm guessing that hollow tunnel really has to amplify the noise coming up from the transaxle? Talk about your 8Ft trumpets?
Anybody care to ring in on these hair brained ideas?
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