Ive looking to get a hypertech chip for my TA they say i need to use a 160 degree thermostat with the chip i want, but one of the books says that you shouldnt use a 160 degree thermastat for some reason just wanna know if anyones using one and has had any problems with it thanks

 

Yea dont. 160 is too cold. I had it in mine when i bought it and it never left closed loop cause it never got up to operating temperature. The coldest id go is 180.

 

Back in the day when I had an LG4 with a Hypertech chip I used a 160 thermo. I don't remember having success with it. I don't remember what I had in it when I dumped that motor in 1995 but I'm going to bet it was something closer to 180.

If I remember right to, I don't have that chip any more, I think it did two things; moved up the rev shift point some and turned on the fan earlier. Other than that I don't think it improved the performance of the LG4 one bit.

 

I run 160s along with cooler fanswitches in all of my TPI cars and have for over 20 years. It has NOTHING to do with open/closed loop operation, which is timed in the chip and EXHAUST temp controlled.
Not a thing wrong with 160s at all.. unless your trying to pass emissions (I have never had to worry bout it) or are a cold person and need melt your leg off heat in the winter.
I'd skip the aftermarket chips tho.

 

Why do you run the 160 stat TTOP?

 

Because I'm fat and dont like the extra heat!

Years ago, I did many back to back runs with the car runing a steady 160degs compared to steady 230-240degs. Guess which was faster?? By a lot.
When these cars were new you should have seen all the cars in the pits with Ice on the intakes to keep them cool, they are just faster when motor is cooler. Even normal driving there is a difference.
I also just don't like it to be run n 230-240degs and have done all I can to help keep it cooler under the hood.
The temps are that hot to help w emissions so if you have testing run your car w stock temps for the tests...

 

Engines do run better at lower temps and will last longer, too. Hotter engine temps are better for emissions testing. If you need to pass emissions but want to run cooler, you may have to swap thermos out when that time comes. I would suggest one of those forever gaskets by Mr. Gasket part #738G that can be used over and over instead of a cork gasket that needs to be replaced every time you take the water outlet off.

 

In what reality ?

A bone stock 305 will see NO gain in running lower t-stat temps and a p.o.s chip except a loss of MPG and worse emissions.

 

Not even close to true. Running a 160 thermo for over 15 years on my car. Track tested as TTOP350 stated the cars run a lot faster cold. I also remember days of icing the TPI motors at the track.

My mileage has stayed the same and the car has no problem going into closed loop as confirmed with my data scanner. I also use the hypertech fan control switch to turn my fans on sooner.

I see that you have 6,300 posts looks like we have an internet troll.

 

So I'm watching the Daytona 500 and I noticed that every time a car was drafting a car in front of them the engine would start to get hot. Water temps would sky rocket. And then I noticed that cars who drafted a lot would eventually blow up due to over heating. Thier engines didn't last as long because of the heat build up. Imagine that.

 

That's reassuring. I've been running a 160* t-stat and a stage 2 hypertech chip in my '89 for 22 years. Every now and then, I get paranoid with all the "super cooling" and not getting into closed loop talk, and think about going to a 180. Never have though.

BTW, it has always passed emissions with flying colors.

 

been running a 160 for 10 years without any issues. my car runs great in the cold.

 

I see you can't do simple math either to see my post count is over the course of 12 years. Hardly trolling if you can do math. I've also been a moderator of this message board. I'm sure all 'trolls' are invited to do that. I wouldn't bother with saying that but, since you seem to think I have no other course of action but 'trolling', it seemed relevant to your comment.

I simply said, in what reality ? That was in reference to your comment that a cold motor has better longevity. Does that mean it will last 50k miles and be done ? No.

Did I make a comment about open/closed loop? I don't recall that.

Mileage? Yes, but, that's subjective, I should have left that part out.

One statement, I made indirectly is, colder running motors don't last as long.
I didn't make any claims to actual longevity.

The other comment, a p.o.s. Hypertech chip and a cooler t-stat won't do jack s--t for a >STOCK< 305 motor.
We are not talking about your almighty track car.

It's common sense that you want something you are trying to squeeze every last HP, tenth/thousands of a second out of, you want cooler.

I'm sorry your comprehension skills are so low that you didn't understand what I said.

To 'troll', to me, is to give useless advice. Which you did.

I gave an honest answer, which you seem to have a problem with.

 

Lol"I lived n sc"and it gets very hot here"n summer"so on a stock 350 tpi"is ok to run a 180 r a 160? Will this hurt anything? Me personailly I don't like a. Hot engine"tech says factory tthermo stats operate at 220 _ 240 so?

 

Dskeezy16, I woudlnt waste any money on the eprom for the 1226870 if you are still using that. I would do a upgrade to the 1227165 ecm. There are lots of guys parting these out in the classifieds you should be able to get a good deal on a ecm/memcal and maf.

 

Have also been running the 160 since the 80's. Even have a couple holes drilled in it, (like the ones SLP use to sell)

Heats a bad thing for the motor/gaskets and what not.

 

Hear me out on this one:

If a Camaro's normal opearating temp is 200 - 220, and you are running a 160* thermostat..when it reach's its op temp. wouldnt it stay open the rest of the time the car is running? Newb question..

 

No.

When you change the Tstat you change the operating temp to 160. Thats assuming your fans are setup for that temp.

 

So can u change it to a 180 and not have to do ant other mods? Will the fans still work properly?

 

Can u run the fans to a toggle switch to run when u won't them too?will it create a problem with the computer? New ?

 

Aha I see. So would a single fan wired to a toggle be sustainable for a 160 temp?

The reason I ask is because right now I have a 180 in a 350. And it seems to like to run about 200-210 right after it opens, then as I get through town to where I need to be (depending on the temp outside) its almost 220 or a little higher. And I am kindof wanting to run it right at 180<. But I cant seem to get it to stay there. maybe a fan/shroud combo upgrade?

 

This I know for a fact will not cause a problem with the computer. As my relay went out and couldnt find the issue.

 

K thks 4 the info

 

I have an 87 GTA with the factory TPI, 5.7 and 160 thermostat. Everything else is stock except the fan was wired to come on with the key for now. I get some people telling me with 160 degree running temp. My car will run off the 02 sensor only and not the ECM, and that my car will run richer and get poor mileage. What do you guys say? I have not changed my chips nor ECM's. Also I get a lot of references to switching my MAF and ECM to an 89 model for some reason and mentioned above are some part numbers I presume are for such parts. Aside from my first question above, what is the difference in the 89 ECM and MAF and what would I expect my car to do differently if I went with that? Is it just those two parts or is there something else I need? A me cal is mentioned but I'm not sure what that is?

 

I've been using a 160 tstat when the car was a stock 305 TPI with no issues and it has passed emissions every time and it still does as a 335 supercharged stoker motor now. Cooler seems better from my humble experience.

 

See my post in chip advice. I liked superchip the best. It wasn't major, but a little seat of the pants feel. Ive swapped back and forth for a week between 3 chips.