wcbcruzer

Ok guys, so which is it? I know both the #1 and #6 theoretically have the potential to be the hottest, but I hear mixed opinions. When I was researching where to tap for my pyro about a year ago people were saying #1 gets the hottest on a 12v, and #6 gets the hottest on a 24v. Now people tend to believe that #6 gets the hottest on both engines.

jlipskoc

I always understood it to be the cylinders near the firewall, cause there further away from the water.

Seems like any piston pics has always been the last cylinder in the back.

qssc

just get someone with those digital laser thermometers to take temps on all the ports on the exhuast manifold and post them. that should give you what u want to know

74dart

Ive always heard #6 also but when I melted mine down #1 and #2 melted 3-6 were fine.

Mslaughter

I followed the directions on PDR's webpage, they said put the probe closer to the firewall because of #6 on both 12v and 24v.

BCSCUMMINS

I would say its #6 it is farther away from the intake I don’t think it gets as much air.

wcbcruzer

#1 doesn't get as much coolant.