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Thermostat question

markmurfie

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So, after reading this thread, I fully intend to buy a Reisch 170 T-Stat. But how would I know if I've done any damage to my engine already from the heat? I'm tuned with bolt-ons if it makes a difference.
The amount of wear that happens in a modern engine would be measured in thousandths of inches or less. I would say if you don't have and excessive noise from the engine or very noticeable white out black smoke(not like what you see on start up on a cold day) I would not even worry about it.
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kris5597

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Reische 170 ordered... and its back ordered for weeks lol.
 

dubster99

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Reische 170 ordered... and its back ordered for weeks lol.
I might see what my local napa/vatozone has and see how it does.
 

Tommy V

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Having a tune adds more timing,adding more timing adds more heat.If ur stock no need to.change but if ur modded using a lower tstat is not going to give more horsepower but will keep u from losing hp due to extra heat.
 

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markmurfie

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Having a tune adds more timing,adding more timing adds more heat.If your stock no need to.change but if your modded using a lower tstat is not going to give more horsepower but will keep you from losing hp due to extra heat.
Did you not see the pictures of the timing adder tables for ECT that I posted? Those are stock and adder tables add to the base timing. Using a lower T-stat will add timing if you are modded/tuned or stock by lowering coolant temperatures. That will increase HP either way.
 

Tommy V

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Did you not see the pictures of the timing adder tables for ECT that I posted? Those are stock and adder tables add to the base timing. Using a lower T-stat will add timing if you are modded/tuned or stock by lowering coolant temperatures. That will increase HP either way.
Your not going to gain hp from changing a tstat stock,it will benefit by keeping the ecu from pulling power at higher temps,but the engine will not have more overall hp.
 

markmurfie

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Your not going to gain hp from changing a tstat stock,it will benefit by keeping the ecu from pulling power at higher temps,but the engine will not have more overall hp.
lets say the stock thermostat keeps you coolant temps at 200* you get 0 timing adder

you replace your Tstat and now your coolant temps are at 180* you get 10 timing adder

Multiply those by the load vs rpm table and stock you get 0 timing added and with nothing but a new Tstat you get from 1.3* to .6* added. That's not a lot, but it allows the ecu to add timing with out even tuning it. You get power from a tstat. Possibly 5-15hp.

if the stock tstat lets the coolant temps go over 200* it will start to pull timing. It is more likely to do this than a lower temp tstat.
ECTIGN.PNG
 

Tommy V

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Ok man,i get what your saying,your not getting what im saying.Ive only been doing this for 30 years.Take your car to.the track stock and run it,then put a lower tstat and run it again with the same variables and see what u get.When stock their are alot more safteys besides ect that effect time,like cot protection.
 

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Ok man,i get what your saying,your not getting what im saying.Ive only been doing this for 30 years.Take your car to.the track stock and run it,then put a lower tstat and run it again with the same variables and see what u get.When stock their are alot more safteys besides ect that effect time,like cot protection.
so with that logic, you also won't benefit from a supercharger because the stock tires won't hook.:crazy:

Cat Overtemp Protection has nothing to do with coolant temps, let's keep this on topic.

And with that said, if you really want to hit every piece of the tune, then just tune the car and disable COT.....takes about 3 seconds.
 

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Tommy V

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so with that logic, you also won't benefit from a supercharger because the stock tires won't hook.:crazy:

Cat Overtemp Protection has nothing to do with coolant temps, let's keep this on topic.

And with that said, if you really want to hit every piece of the tune, then just tune the car and disable COT.....takes about 3 seconds.
Lol
 

Tommy V

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so with that logic, you also won't benefit from a supercharger because the stock tires won't hook.:crazy:

Cat Overtemp Protection has nothing to do with coolant temps, let's keep this on topic.

And with that said, if you really want to hit every piece of the tune, then just tune the car and disable COT.....takes about 3 seconds.
Its as simple as this stock the car does not need a lower tstat,Tuned theirs more timing which causes more heat and why the race tunes re ommend 93oct Hence higher flash point..If the stock tstat was robbing 15 hp im sure ford would have put a lower one in.But i know u know everything.Thats why i added the cot ptotect comment because if your add a lower tstat u need tuned anyway for fans and get cat protection off.
 

kris5597

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Its as simple as this stock the car does not need a lower tstat,Tuned theirs more timing which causes more heat and why the race tunes re ommend 93oct Hence higher flash point..If the stock tstat was robbing 15 hp im sure ford would have put a lower one in.But i know u know everything.Thats why i added the cot ptotect comment because if your add a lower tstat u need tuned anyway for fans and get cat protection off.
I believe it was determined that Ford installed the higher temp thermostat for emissions and engine longevity. Saying Ford would have done it if it was robbing 15hp is like saying the factory tune is good because Ford did it. We all know there is a ton left on the table on a stock coyote with modifications and tuning.
 

Tommy V

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I believe it was determined that Ford installed the higher temp thermostat for emissions and engine longevity. Saying Ford would have done it if it was robbing 15hp is like saying the factory tune is good because Ford did it. We all know there is a ton left on the table on a stock coyote with modifications and tuning.
No shit were talking about a stock car gaining up to 16 hp by hanging a lower tsta.Its not happening..Now your talking about how much is to be gained tuned,which i already know.Were Talking ABOUT A STOCK CAR.
 

Tommy V

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U know what everybody stock go change your tstat and get all this hp these guys are talking about.lol.
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