Water through Intake Manifolds

Richard Sweet said:

Everyone, my original description was incorrect. I apologize.
After actually touching the I.M., I determined that there is not a temperature difference of the runners.
With my exhaust cross over ports blocked on the I.M. and the engine warmed up, the temperature by touch, close to the carburetor, at idle, the runners to all cylinders is about 45*F.

I guess I got worried about something that I imagined in my mind.
Please accept my apology.

Click to expand...

Hey no biggie always good to be aware..

Those IR gun thermometers are as low as $11 on Amazon

Well I took *F temps of the I.M. front split (FS) to runners 1&2 and the rear split (RS) to runners 7&8, using an infrared temperature gun, in park with the hood up.
Starting at 9:40 a.m. at idle, choke closed, the FS was 66.5* and RS was 64*.
At 9:45, choke 3/4, idle, FS=69*, RS=65.4*.
At 10:02, choke open, idle, FS=136*, RS=124*.
At 10:07, about 1500rpm, FS=171*, RS=136*.
At 10:14, engine off, FS=161*, RS=149*. End of test.
It pays to measure.

So it looks like there is plenty of heat and I'm glad I blocked off the exhaust port into the I.M.. Like others have said, there's not much need for more heat to the I.M..

Somebody, Clifford? Used to sell 4bbl flanges with heater hose fittings much like the common old Ford ones. These were intended for Clifford 6 manifolds and headers, which have no manifold heat at all. They are VERY cold blooded.

It is not the cold, so much, as HUMIDITY. This is because high velocity air going through the carb venturi causes a cooling effect, and is made worse with humid air Fuel is even worse in this regard, "the refrigeration effect." I can still remember, one hot day in San Diego, a dune buggy with an aftermarket manifold (Corvair?) had FROST under the manifold on a hot day