running Hot?

9

91whiteponygt

New Member

Mar 24, 2006

61

0

0

May 26, 2006

#1

• May 26, 2006

• #1

i have a 91 gt with h/c/i swap with a 180* thermostat. car now on a hot day with a/c running runs about 210*. is this wrong? car has edelbrock perf. heads, b-303, gt40 intake/man aod, 3.73, no converters, 2 chamber flows, aslo temp gauge reads wrong sometime when using headlights, but seems to read right during the day. please help

 

FORCED2DV8

New Member

Jun 6, 2005

458

0

0

Grand Rapids MI

May 26, 2006

#2

• May 26, 2006

• #2

As you make more power....you will generate more heat, 210 is a little hot from where I like it, try switching to a 160 t stat, make sure your anti freeze is 20% and water is 80%, You want to stay around 180 under normal driving conditions, Do you have a electric fan or stock still??

 

9

91whiteponygt

New Member

Mar 24, 2006

61

0

0

May 26, 2006

#3

• May 26, 2006

• #3

have a stock fan but would take some suggestion on an electric one. will the 160* not mess up the stock computer or anything?

 

vristang

15 Year Member

Mar 31, 2005

4,933

101

124

Seattle

May 26, 2006

#4

• May 26, 2006

• #4

Coolant temps of 160 - 180F can cause problems with the computer.

Your coolant level is not that low.

I would look into a good e- fan before switching to a 160F stat. There are some potential downsides to that. Downsides to an e- fan is less drag on the motor = More power (not too bad for the downside).

Also, 210 is not that hot for having a/c on. I try to keep my coolant temp around 200F. If your system is in good shape and you don't see high temps where you live then you should be able to push the temp up for increased preformance, engine durability, and decreased emissions.

Just my opinion,
jason

 

feifong

New Member

Apr 4, 2005

319

0

0

mesa

May 26, 2006

#5

• May 26, 2006

• #5

210 is not that bad for an h/c/i swap mine actually creeps up to 240 after my swap ive been running it with no tstat because i didnt want it to overheaat and it looks like thats what its doing.

 

88Stang331

New Member

Mar 30, 2006

239

0

0

May 26, 2006

#6

• May 26, 2006

• #6

Like what was said above, make sure you have the right combination of Coolant/Water (distilled). I have Stock t-stat and a head/intake swap and my car runs cooler i think.

 

9

91whiteponygt

New Member

Mar 24, 2006

61

0

0

May 26, 2006

#7

• May 26, 2006

• #7

what is any easy way to check and make sure my stock gauge is working properly, also i just put in a 3,000 stall torque converter

 

just4bob50

Active Member

Apr 2, 2005

504

5

28

Pa.

May 26, 2006

#8

• May 26, 2006

• #8

feifong said:

210 is not that bad for an h/c/i swap mine actually creeps up to 240 after my swap ive been running it with no tstat because i didnt want it to overheaat and it looks like thats what its doing.

Click to expand...

Running no t-stat can actually make your engine temps higher ,because the flow rate of the coolant is increased so much that the coolant doesnt spend enought time in the radiator to cool it down enough. If you are having temps above 210 on a 180 t-stat and the guages are accurate then it is probrably time for a rad. and water pump upgrade. After I changed to a Summit aluminum rad. and high flow pump I never see temps above 195 and that when Im pounding on it. Most times it floats between 178-183.

 

9

91whiteponygt

New Member

Mar 24, 2006

61

0

0

May 26, 2006

#9

• May 26, 2006

• #9

the car also had 65mm bbk tb and c&l maf

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

May 26, 2006

#10

• May 26, 2006

• #10

Does it seem to cool off once you get going on the highway, etc? I would want to determine if the radiator is unable to reject enough heat overall (running hot at all times) or if it's running hotter while stopped or going slow (more likely a fan issue).

Of course, things like the chin spoiler, U/D pulleys, etc all factor into considerations.

Good luck.