runing with out a thermostat? how bad is it?

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Old Jun 21, 2007 | 02:39 PM
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projectef's Avatar
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Default runing with out a thermostat? how bad is it?

i know if you run without a thermostat on your daily driven car, its bad, but how bad, and what does it do.
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Old Jun 21, 2007 | 02:42 PM
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Default Re: runing with out a thermostat? how bad is it? (projectef)

well the coolant isnt going to be able to properly cool off like it should because it wont be given the proper amount of time in the radiator so you wont have an average coolant temp. I am not sure how bad this is though because my bro just took the thermostat out of his 89 prelude si 4ws and he said it actually ran cooler because the thermostat was stuck before. Well then i guess that if it runs cool it shouldnt hurt the motor but i am not 100% sure on that.

So maybe some more insight on how bad this could be.
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Old Jun 21, 2007 | 02:50 PM
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Default Re: runing with out a thermostat? how bad is it? (iandavis90)

running cooler isnt good. it wont let the engine heat up to optimum temp. other reasons aswell but i cant think of them.
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Old Jun 21, 2007 | 02:51 PM
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i have a 88 ef w/h22 and its gets real hot, n where i live is hot. so i wanted to know how i can keep it cool. should i get a low temp... thermostat?
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Old Jun 21, 2007 | 02:52 PM
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Default Re: (projectef)

that could work

Where is windsor, ca? I live in the high desert by Victorville and near Barstow.
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Old Jun 21, 2007 | 02:57 PM
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windsor is in nor-cal, right now is about 90, later in the summer its bout 98-102
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Old Jun 21, 2007 | 03:18 PM
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if ur car is running hot it could be a lot of different problems... how is your water pump?.. is it good?, what kind of ecu are u using?... is it wired properly?... is the thermostat good? is your fan engaugeing when it is supposed to?....
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Old Jun 21, 2007 | 03:21 PM
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Default Re: (projectef)

I live in puerto rico (hotter than hell) and I removed my thermostat today...... It runs a little colder than with thermo, the only thing is that it takes a little longer to warm up.....

remember to use silicon sealant to the thermo housing
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Old Jun 21, 2007 | 03:54 PM
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Default Re: runing with out a thermostat? how bad is it? (projectef)

dont remove the thermostat! Your engine will constantly be running rich trying to warm up. The stock honda thermostat is 171 degrees, its plenty cool. you should see normal operating temps of 180, the fan comes on at 200. If you want it to stay at 180 get one of those spoon/mugen/buddyclub fan switches they turn on at 180 and keep it there. If its still getting hotter with the fan on your motor is heat soaked and you need a bigger radiator/more fans.
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Old Jun 21, 2007 | 04:34 PM
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i was runing with out a thermostat for a while, but i notice when i drive around on a hot day, it whould get hot so i would pull over for a lil bit. so i put a thermostat in, but i still wanted it to run cooler, it hasnt got hot since i put the thermostat in though.
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Old Jun 21, 2007 | 04:37 PM
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i guess i'll get a better fan swith just in case, and im using a 92 radiator w/the ac fan, its small, because i dint have enough room with the normal fan. i'll get a bigger fan too.
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Old Jun 21, 2007 | 04:49 PM
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Default Re: runing with out a thermostat? how bad is it? (Crx Jimmy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crx Jimmy &raquo;</TD></TR><TR><TD CLASS="quote">dont remove the thermostat! Your engine will constantly be running rich trying to warm up. The stock honda thermostat is 171 degrees, its plenty cool. you should see normal operating temps of 180, the fan comes on at 200. If you want it to stay at 180 get one of those spoon/mugen/buddyclub fan switches they turn on at 180 and keep it there. If its still getting hotter with the fan on your motor is heat soaked and you need a bigger radiator/more fans.</TD></TR></TABLE>


AMEN! which is why i hated my KOYO until i was boosted.


stock motor kept running pig rich. supercharged motor ran perfect.
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