Lots of heat inside of car

[IJ.]

Oil Cooler T-Stats are different they're 90/10 by design I seem to remember my Toyota valve sealing fairly well when I tested it many years ago, by comparison the GM valve leaks like a collander, the supplied Vintage Air Servo controlled valve seals 100% but I suspect when powered it'll have a part open park position.

Even if the valve is slightly open it's not going to contribute much to his heat issue unless one of the Mixer Doors is damaged/open.

The way the HVAC is designed you can have 100% hot water in the heater and if the Mixer door isn't open you freeze (happens when the AC Amp or the CC amp dies)

 

[GrimJack]

Another thing to mention... do you have the climate control set on exterior air, or recycle? If you leave it set to exterior air, even when the fan is off it will still blow hot due to airflow from your speed. As the heater core is always hot, this will slowly heat up whatever vents are selected.

In a stock, working, system, the AC is used to cool this back down to whatever temp you have selected.

 

[GrimJack]

Even if the valve is slightly open it's not going to contribute much to his heat issue unless one of the Mixer Doors is damaged/open.

The way the HVAC is designed you can have 100% hot water in the heater and if the Mixer door isn't open you freeze (happens when the AC Amp or the CC amp dies)

Interesting... I wonder if the mixer door is set to open with the CC on exterior and the temp on low?

 

[Zumtizzle]

I chucked 2 Toyota valves last week so can't confirm but I thought they sealed fairly well?

It seats well.

I don't see how being open a crack will contribute to heat.

On a Buds SC300, when his heater control valve wouldn't open. I ziptied it open and when we would adjust the heater knob it would noticeably blow cold and hot hot air on their respective setting.

So there must be a door inside contributing to heat management.

 

[Heavy D]

well yea warm air i can understand, but im talking about hot air, but if im boosting the car up good, doing high rpms, then the cabin gets hot, but if i start on a nice day and just taking it easy the cabin is nice and cool. but again even on my N/A wasnt even like this hot

 

[kotu100]

is the rubber shifter boot in place? i had mine off for a while and the cabin used to get SOOOO hot. i could use it as my heat in the wintertime. so i finally put the rubber boot back in and the heat went away amost completly.

 

[Heavy D]

damn after reading about the vsv now, that could be the problem, i believe the air is coming from out side, ill try having inside air only and see what happens, cause i usually have outside air to get cool breeze coming in, i ust thought now that i was the cat on the tranny cause the tranny to heat up a bit, but then like i said how it mostly happens on the highway more, then all the air is getting forced in faster by having the vents blowing air from outside in. and thats why at low speed at driving in towns never get hot, so ill check it out tomorrow when i go on the highway.

 

[kotu100]

shifter boot.... im tellin ya

 

[Poodles]

Already mentioned

 

[jetjock]

There is a very small amount of flow.

This is true. Designed to do it in fact. Iirc it's not built into the valve itself. It's a function of the bracket.

 

[Heavy D]

well for the vsv, just a very small amount of coolant will flow through the vsv, i put one against a water hose and just a tiny bit of water barely makes it through. also forgot to say, the shift boot is fine, i already inspect it.

 

[Poodles]

Did you inspect all 4?

 

[Heavy D]

yea its good, i took them off when i did the sogi shifter mod, and they where good, well i like how they said about by passing the heater core and having outside air coming through, i left the inside air while i messed around the highway and it stopped blowing hot air, usually on most cars its never like that, but w/e, i just couldnt stand driving the car like that.

 

[Poodles]

The big one doesn't seal anymore if you do the sogi mod...

 

[Heavy D]

didnt know that lol, but so far its been good now, like yea there is just a tiny bit of heat going by the shifter, may be thats why that small amount of air, but when the cabin was to get hot, it will get hot, like if your foot was next to a fire, and then again i think the cats are clogged, the car didnt want to do more than 8psi, so i kept boosting hard a couple of times on the highway, doing couple pulls of high rpm then i got the turbo to do over 8psi. thanks for the help too.

 

[Torque]

I have a single turbo 1jz swap and it too gets hot as hell on the freeway both by the shifter and the passenger foot area. This summer i'm gonna attempt to lay some thermal sheild on the tranny tunnel and heat wrap my downpipe.

 

[Zumtizzle]

This is true. Designed to do it in fact. Iirc it's not build into the valve itself. It's a function of the bracket.

Correct!

 

[jetjock]

Well duh . That would be built btw, not build. My bad.

...well for the vsv, just a very small amount of coolant will flow through the vsv....

In the interest of accuracy coolant doesn't flow through the VSV but I understand what you were getting at. Not that your problem has anything to do with that assembly...