Ok I heard the other day that if you get a 160 stat without the "programming" your car dosent go into closed loop, hurts your performance, and destroyes your sensors. Is this true?

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'98 Artic White Z28 M6
Free Mods! LS1 Lid, Smooth Bellows, 160 Stat, Flow Cat-back, B&M Ripper.

http://camaroz28.cardomain.com/id/gc456

 

I hope not!!

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1998 Camaro SS A4 #2,515 OF 3017
NBM w/ grey leather
T-tops, all GM options
MODS:
-SLP dual-dual (came with car)
-Hypertech 160 thermo
-SLP Lid w/ K&N and smooth air bellows

 

I've never heard that. Basically all the programming does is turn the fans on earlier, to better work with the 160 stat. The computer should sense the rest. I don't see how the car running a little cooler would ruin the sensors.

 

From what I understand the temp to worry about is much lower... at most 140 degrees.
I have had the free thermostat mod and the auto fan mod on my car for 2 years now and have seen no issues... Seems like I would have set a code or something by now, and there are folks that have had the mods even longer.
Doesn't sound right to me.
Dave

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• Dynomouth Exhaust!
• My 98...318 rwhp/334 ft lbs
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Urban Legend

A bunch of BS passed on from an idiot to people who just dont know better. and it soon becomes fact.

Most people never ask about it and then they believe it too.

160 stat and fans on alot sooner for 3 years
all is good




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DaveD
1998 WS6 #207
-ARE Stage II Head/Cam
1998 Regal GS
-It Has Boost

The Phantom of CamaroZ28.com
Http://PhantomTA.cz28.com

[This message has been edited by PhantomTA (edited August 03, 2002).]

 

Thanks guys for easing my mind.

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'98 Artic White Z28 M6
Free Mods! LS1 Lid, Smooth Bellows, 160 Stat, Flow Cat-back, B&M Ripper.

http://camaroz28.cardomain.com/id/gc456

 

Came across this post in a search and was curious about the free thermo mod

 

This can have effects IF the temps stay at 160 or lower and the PCM calibration is stock.

Reasons, the PCM is programmed :

For the internal smog tests the PCM runs, to have a VALID drive cycle the engine must be started under 122 water degrees and MUST exceed 160 degrees.
If that is not meet then it is not considered a valid drive cycle and the I/M tests cannot get into a passed state and could take the PCM many drive cycles to get those tests completed in a shorter timeframe.

Also depending on the PCM calibration in winter months if temps stay below 160 degrees the PCM using different amount of fuel when in WOT then when the temps are hotter.

Using a 160 stat would cause engine to take longer to heat up so that cold start functions like rear O2s or AIR take longer to meet the PCM calibration or exhaust cooler so O2s report incorrectly if they are not hot enough.

As a norm other then in winter weather using 160 stat would not be a issue since engine runs hotter then the fully opened position of that stat.

 

the free thermo mod is a way to turning your stock stat into a 160 for really cheap..

i think it's on www.installuniversity.com

 

They have a question like this in the Nov isue of GMHTP. Interestingly, in Ed Wright's (Owner of Fastchips) relpy, he states that LS1 engines tend to make the most power at 180-205*.

 

Yep 180-185 is a real good temp for an LS1 that's why most set there fans to come on at 185-190 and go off at 175 with a 160 stat. Just cause you have a 160 stat doesn't mean that your temps will ever stay at 160.