so it should work fine, unrestricted? not too much flow? i'll bet your heater works well

 

While we are on the subject of taps, does anyone know the size and thread pitch of the IAT2 sensor and Oil Pressure sensor?

 

oil is 1/4" pipe thread, i think

iat2, is small, maybe 1/8" pipe?

just take the senders with you to the hardware store and match them up.

 

Well; it could flow threw and make it actually be cooler; who knows. Right now I just need to get my A/C recharged

 

actualy the restrictor is on the inlet side to the heat exchanger, not the outlet. so it restricts the amount of water going into the heater core; it doesn't slow the flow out of the heater, which it seems that you were thinking. i am still undecided on whether i will cut it out or not. does anybody know if that it a bad idea?

it seems like it would divert more water through the heater, instead of back through the cylinder heads to the crossover. the two problems i see are when the coolant goes through the heater core, it returns it to the pump without going back to the radiator.

i will be finishing this up tomorrow.

 

Yeah; it's on the inlet side, but not really a big differece as it's a restriction either way. The water going threw the heater core should cool just about as good as going threw the radiator. If you turn the heater on then it will cool better than the radiator.

 

do you race with your heater on?

 

I've used it in the lanes and all to pull heat out of hte motor and it works!

 

That is precisely why I'm not going to T the rear of my heads in with the heater core. The rear of my heads are going directly to the thermostat housing I'm going to run.

 

then where are you pulling coolant from to run the heater?

 

found my answer on another forum:

"If you remove the restrictor you will shorten the life of your heater core. Early modulars had issues with short life of the core mine went in 4 years after I bought the car at 70K miles"

 

I would think the coolant would take the path of least resistance to the water pump....so with the restrictor removed there would be no reason for the water to flow forward thru the rest of the cylinder head...it would go thru the heater core and then straight to the pump. Of course the hose itself would be a restriction because that is a lot of coolant we are talking about but anyway I would be affraid of not enough flow thru the forward part of the cylinder heads or at least slowing the flow down too much.
Dale

 

i am going to get some new fittings today so i can keep the restrictor in the line.