160 Degree Thermostat and Car Issues....

[fastfaster]

ted at jannetty racing got 752 rwhp out of my ls3. i have seen his results. i'm going with teds opinion. i have yet to see him wrong!

[HtownSS]

Originally Posted by aj2ssrs

Wasn't looking to have a pissing match, just curious how much difference there is in temperature with the lower thermostat. If it isn't that much different than why bother.




Thanks HtownSS. So you are running about 7 degrees cooler than I am. Normal driving I'm 189 to 194. Temperature climbs in traffic maxxing out at 202. I guess the debate will continue, I personaly don't see what's to gain from several degrees but I may be wrong. It's a bigger difference if everything is stock, about a 17 degree swing on the cooler side. Are you tuned with the fans coming on earlier?

Yes tuned, with cam, headers.

[BLACK10]

i live in the south and my temps are around 175-180*. my weather here is usually in the high 90's, with winter temps around 40*. The benifit i see running a 160* stat is the when sitting in 100* weather and in traffic and also at the track, my car does'nt get to 230* anymore.

Does anyone have proof of a 160* thermostat causing long term effects to a motor?

[Ovenmitt]

Your car will run hotter then the the factory thermostat's open point anyway, there isnt any reason to get a 160.

At 200 degrees a 160 and 180 are both fully open.

[JANNETTYRACING]

A Class in Thermodynamics would make you better understand where I am coming from.

Combustion efficiency is directly affected by cylinder head temperature and how fast it wicks away heat from the combustion process.

Don't you Think Every engine company across the Planet has tested what works best for combustion efficiency.

With Combustion efficiency comes Performance!

HMMM Seems every engine manufacturer in the world has settled on 195 minimum to 230 maximum, but SLP and LPE knows better because they sell thermostats.

Albert Einstein was in the Minority too

7 years is a good start,

I have been building and tuning engines for over 30 years, I am on the Dyno Day in and Day out at the race track on the weekends and on the street regularly, and I have seen and continue to see stuff that supports my findings.

As I Said I am Open Minded and Still waiting on the Technical data of the advantages of a 160 Thermostat in These Engines.

There definitely Was an advantage on Pre Reverse Cooling Small Block Chevys, and I can go in to detail on that if you like.

Ted.

[SlingShot]

Originally Posted by Ovenmitt

Your car will run hotter then the the factory thermostat's open point anyway, there isnt any reason to get a 160.

At 200 degrees a 160 and 180 are both fully open.

This is what I always thought, once you hit the mean temperature of the coolant, it doesn't matter at what temp the valve opens. @ 200 degrees they are all open fully. The only thing that is different is how fast the temp comes up ...

[JANNETTYRACING]

Originally Posted by SlingShot

This is what I always thought, once you hit the mean temperature of the coolant, it doesn't matter at what temp the valve opens. @ 200 degrees they are all open fully. The only thing that is different is how fast the temp comes up ...

Correct, so Why Burn the Extra fuel to get to Operating Temps?

[caverman]

Kind of a side question.....a few of ya'll are posting your exact engine temperatures. How are you seeing your temps? Maybe I missed something in the DIC but all I see is a C to H guage. It doesn't tell me my exact numbers.

Are you installing a temp guage to monitor the exact temperature?

[boostedyards86]

intriguing debate. seems like the old which is better turbo or supercharger debate.... ill keep my 160tstat in...

[aj2ssrs]

Originally Posted by caverman

Kind of a side question.....a few of ya'll are posting your exact engine temperatures. How are you seeing your temps? Maybe I missed something in the DIC but all I see is a C to H guage. It doesn't tell me my exact numbers.

Are you installing a temp guage to monitor the exact temperature?

The temp gauge is in the DIC. Switch to the diagnostics portion of the DIC and you can scroll between coolant temps, individual tire pressure, remaining oil life.

[JANNETTYRACING]

Originally Posted by danhr

I believe ted is referring to when people run them for nitrous. The TR6 is a projected tip, which isn't ideal for running with nitrous, yet a lot of people do it because "the internet said so". More people have better luck with the br's

Acutally No, Here is a perfect Example.

2 weeks ago, a Guy calls me up and says I want to Purchase one of your Tunes, I had my car tuned locally and and I am not Happy with the Driveability but the Power is Great.

So I say Let me guess, the guy sold you TR6 Plugs and a 160 Stat, He Says in amazement Yeah How'd you know?

I says Before I sell you a Tune Do me a Favor, Reinstall your Stock Plugs and Stat and get back to me.

A Week Later I get an Email from the guy, with a BIG THANK YOU,

I did what you said and my car runs perfect now, You could have easily sold me a tune but were kind enough to make a suggestion first and it worked.

Thank You so Much Your an asset to the C5 Community.

Ted.

[2SSCAMARO]

Originally Posted by JANNETTYRACING

A Class in Thermodynamics would make you better understand where I am coming from.

Combustion efficiency is directly affected by cylinder head temperature and how fast it wicks away heat from the combustion process.

Don't you Think Every engine company across the Planet has tested what works best for combustion efficiency.

With Combustion efficiency comes Performance!

HMMM Seems every engine manufacturer in the world has settled on 195 minimum to 230 maximum, but SLP and LPE knows better because they sell thermostats.

Albert Einstein was in the Minority too

7 years is a good start,

I have been building and tuning engines for over 30 years, I am on the Dyno Day in and Day out at the race track on the weekends and on the street regularly, and I have seen and continue to see stuff that supports my findings.

As I Said I am Open Minded and Still waiting on the Technical data of the advantages of a 160 Thermostat in These Engines.

There definitely Was an advantage on Pre Reverse Cooling Small Block Chevys, and I can go in to detail on that if you like.

Ted.

Although I would never challange your skills and knowledge in engine building and tuning, I do offer this food for thought. One reason the OEM's choose the 192* stat is that the vehicle they sell must be able to operate satisfactorily in say Watertown NY where winter temps fall far below Zero and also be sold and operate properly in Tuscon AZ in 100* plus ambient temps. They use one stat for all and I believe make compromises in doing so. Heat is not friendly to many items under the hood such as IAT, gaskets, seals, hoses, fluids, etc. If you can help reduce heat soak by reducing the under the hood temps, that is a plus. Long tube headers and superchargers add greatly to the heat being generated under the hood in addition to the heat being transferred from the engine block, engine oil, radiator, and coolant fluid. By keeping the coolant temps lower,I can reduce the under the hood temps and help reduce the effects of heat soak. When I was NA with long tubes, cai, and a tune with a 160* stat on Pirellis I was running 12.5's - 12.6's @ 111 -112 which is probably as good as most with the same mods except running a 192* stat. Reducing the exposure of all the under the hood components to higher temps is a plus IMO.

[JANNETTYRACING]

Originally Posted by 2SSCAMARO

Although I would never challange your skills and knowledge in engine building and tuning, I do offer this food for thought. One reason the OEM's choose the 192* stat is that the vehicle they sell must be able to operate satisfactorily in say Watertown NY where winter temps fall far below Zero and also be sold and operate properly in Tuscon AZ in 100* plus ambient temps. They use one stat for all and I believe make compromises in doing so. Heat is not friendly to many items under the hood such as IAT, gaskets, seals, hoses, fluids, etc. If you can help reduce heat soak by reducing the under the hood temps, that is a plus. Long tube headers and superchargers add greatly to the heat being generated under the hood in addition to the heat being transferred from the engine block, engine oil, radiator, and coolant fluid. By keeping the coolant temps lower,I can reduce the under the hood temps and help reduce the effects of heat soak. When I was NA with long tubes, cai, and a tune with a 160* stat on Pirellis I was running 12.5's - 12.6's @ 111 -112 which is probably as good as most with the same mods except running a 192* stat. Reducing the exposure of all the under the hood components to higher temps is a plus IMO.

In a Drag Race only situation I agree because of Heat Soak only sitting in the staging lanes, but lets face it, these cars don't sit on the trailer all week.

Our L99 car went 12.4s 113 mph with the stock stat and never shut if off between runs and kept the hood closed.

Ted.

[2SSCAMARO]

Originally Posted by JANNETTYRACING

In a Drag Race only situation I agree because of Heat Soak only sitting in the staging lanes, but lets face it, these cars don't sit on the trailer all week.

Our L99 car went 12.4s 113 mph with the stock stat and never shut if off between runs and kept the hood closed.

Ted.

Yeah, but what if your tune was better than mine!