Running Hot - Page 2

Benesesso · 03-02-2008, 01:22 AM

I've had this problem with both of my turbo Supras. I found a radiator shop that built me a couple of 3 row radiators. They helped, but the cars still run hot in the Phoenix summers. I changed the fan in the 1990 to a direct-drive stainless steel flex fan, and that helped, but it's a bit noisy.

In the summer, at ~110+ deg., both cars get up to ~220-230, on accurate gages, and the faster I drive the hotter they get. I run 50% antifreeze to keep the boiling point high. Both cars have good head gaskets.

I am convinced that Toyota screwed up and should have provided for a lot more airflow thru the rad.

sd88supra · 03-02-2008, 06:47 AM

^You should ask mrnickeleye about keeping your turbos cool. He lives in the desert as well and made some modifications to his N/A to keep it running cool, and they might help your turbos. Only I can't remember exactly what he did, but it had to do with cutting something out to increase the hot air flowing out.

mkiiisupra · 03-02-2008, 12:16 PM

The rubber seal that runs along the back of the engine bay above the firewall.... I know he removed that. it helps some heat escape through there.

Also make sure ur radiator cap is in good condition

supra_chick_1987 · 05-29-2008, 10:28 PM

Hey, my car finally spilled coolant everywhere when I drove it.....and I got the hydrocarbon test done. It was indeed the head gasket, though we are unsure of the severity of the problem.

My mechanic has said that this is a very costly repair, and he is urging me to get a whole new motor....what would you all recommend?

Please help me save my baby!!!!!

Chambers · 05-30-2008, 11:27 AM

You could buy a new engine, but it wouldn't be smart to buy one and not do a rebuild, because that engine might have a bhg as well. Either way you are going to have to tear down a engine to see whats wrong if anything.

I would suggest you get the crank checked to see if it is withing tolerance of the TSRM, if it clears then you can do a rebuild on the engine you have now and keep your engine.

supramacist · 05-30-2008, 06:41 PM

Quote:

Originally Posted by Benesesso

I've had this problem with both of my turbo Supras. I found a radiator shop that built me a couple of 3 row radiators. They helped, but the cars still run hot in the Phoenix summers. I changed the fan in the 1990 to a direct-drive stainless steel flex fan, and that helped, but it's a bit noisy.

In the summer, at ~110+ deg., both cars get up to ~220-230, on accurate gages, and the faster I drive the hotter they get. I run 50% antifreeze to keep the boiling point high. Both cars have good head gaskets.

I am convinced that Toyota screwed up and should have provided for a lot more airflow thru the rad.

Do an ac delete and get rid of the condensor blocking the radiator.

SC: Is this the same mechanic that unplugged your coolant sensor??
If it is. Find a new one or start gearing up to get dirty. Because if this guy didn't know about the sensor. You don't want him near the internals.
This is your car not a guinnea pig.

CyFi6 · 05-31-2008, 01:31 AM

a new engine is going to be just as costly, if not more, and probably will blow a head gasket within a short time if its on the original gasket

Benesesso · 05-31-2008, 03:09 AM

>"Do an ac delete and get rid of the condensor blocking the radiator."<

Except that I live near Phoenix, and the days may not get below 100+ until October----.

dj7mge · 06-01-2008, 12:11 AM

rebuild what you have use a stronger gasket and try some water wetter it works really good for about 3months my dad uses it in his drag car dropped his operating temp from 220 to 180-200

JPJ · 06-03-2008, 03:21 PM

Quote:

Originally Posted by supramacist

Do an ac delete and get rid of the condensor blocking the radiator.

SC: Is this the same mechanic that unplugged your coolant sensor??
If it is. Find a new one or start gearing up to get dirty. Because if this guy didn't know about the sensor. You don't want him near the internals.
This is your car not a guinnea pig.

Exactly!!!
The fact that your mechanic did this leaves little room for doubting the fact that he is indeed a moron.

03-02-2008, 01:22 AM	#11
Benesesso 3" Exhaust Join Date: Nov 2005 Location: Phoenix, AZ Posts: 145	I've had this problem with both of my turbo Supras. I found a radiator shop that built me a couple of 3 row radiators. They helped, but the cars still run hot in the Phoenix summers. I changed the fan in the 1990 to a direct-drive stainless steel flex fan, and that helped, but it's a bit noisy. In the summer, at ~110+ deg., both cars get up to ~220-230, on accurate gages, and the faster I drive the hotter they get. I run 50% antifreeze to keep the boiling point high. Both cars have good head gaskets. I am convinced that Toyota screwed up and should have provided for a lot more airflow thru the rad. __________________ "You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein 1988 and 1990 Turbo Supras

03-02-2008, 06:47 AM	#12
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	^You should ask mrnickeleye about keeping your turbos cool. He lives in the desert as well and made some modifications to his N/A to keep it running cool, and they might help your turbos. Only I can't remember exactly what he did, but it had to do with cutting something out to increase the hot air flowing out. __________________ -1987 5 spd N/A with TEMS: low miles! All stock with the exception of electric fans and an '89 front bumper, Yokohama 225/50/16 with stock rims. It's a mess and in the garage. -1987 5 spd Turbo with TEMS: miss-matched tires, needs lots of work, but it runs! Project car. -1988 N/A auto targa: all stock except 18" rims with Falken 265/35/18 in rear and 225/35/18 in front; daily driver.

03-02-2008, 12:16 PM	#13
mkiiisupra Lexus & 550's Join Date: Sep 2007 Location: Las Vegas, NV Posts: 570 Blog Entries: 1	The rubber seal that runs along the back of the engine bay above the firewall.... I know he removed that. it helps some heat escape through there. Also make sure ur radiator cap is in good condition __________________ 1990 Toyota Supra Turbo A/T ------------------------------------------------ Questions about oil? take a look http://www.supramania.com/aehaas/

05-29-2008, 10:28 PM	#14
supra_chick_1987 Stock Join Date: Feb 2008 Location: Atlanta Posts: 7	Head Gasket Hey, my car finally spilled coolant everywhere when I drove it.....and I got the hydrocarbon test done. It was indeed the head gasket, though we are unsure of the severity of the problem. My mechanic has said that this is a very costly repair, and he is urging me to get a whole new motor....what would you all recommend? Please help me save my baby!!!!!

05-30-2008, 11:27 AM	#15
Chambers walbro fp Join Date: May 2007 Location: USA - Harford County, Maryland Posts: 481	You could buy a new engine, but it wouldn't be smart to buy one and not do a rebuild, because that engine might have a bhg as well. Either way you are going to have to tear down a engine to see whats wrong if anything. I would suggest you get the crank checked to see if it is withing tolerance of the TSRM, if it clears then you can do a rebuild on the engine you have now and keep your engine. __________________ Whats in the garage, well.... in the yard. 1986.5 Toyota Supra - NA - 5 spd 1986 Ford Ranger Lowrider - 5 spd 1984 Ford Ranger XLT - 7" Lift - 4X4 - Auto "Stuck in the 80's"

05-31-2008, 01:31 AM	#17
CyFi6 3" Exhaust Join Date: Oct 2007 Location: SLO Posts: 234	a new engine is going to be just as costly, if not more, and probably will blow a head gasket within a short time if its on the original gasket

05-31-2008, 03:09 AM	#18
Benesesso 3" Exhaust Join Date: Nov 2005 Location: Phoenix, AZ Posts: 145	>"Do an ac delete and get rid of the condensor blocking the radiator."< Except that I live near Phoenix, and the days may not get below 100+ until October----. __________________ "You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein 1988 and 1990 Turbo Supras

06-01-2008, 12:11 AM	#19
dj7mge Stock Join Date: Mar 2008 Location: milwaukee,WI Posts: 18	rebuild what you have use a stronger gasket and try some water wetter it works really good for about 3months my dad uses it in his drag car dropped his operating temp from 220 to 180-200

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