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12-31-2011
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#1 |
 Join Date: Dec 2011
Location: Fallon NV
Posts: 24
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Just bought a ZR1 and had questions.
Hey guys I just bought a 1990 black/grey ZR1, #646, with 28,000 miles on it. I had a couple of questions about the cooling system. The car warms way up at idle (up to 109 C on the A/C console) before the cooling fans cut on. I looked under the car at the radiator and didn't really see anything blocking the flow. I also priced new radiators and noticed some crazy price differences. Amazon has an AC Delco radiator for $136 and then most of Eckler's radiators were $500-600. What gives? Is there really a difference? Next question, how can I tell if the fuel injectors on the car have been replaced without tearing the motor apart? Can anyone recommend a site other than ebay where I can buy a CD of the shop manual? Thanks for reading and thanks in advance for the answer!
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12-31-2011
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#2 |
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
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Re: Just bought a ZR1 and had questions.
That's the way it is stock,fans turn on at 230*f.
Stock T-stats are 180* Not radiator unless you have a leak,you have low mileage. You can have your chip reprogram to turn fans on earlier. Pete
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'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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12-31-2011
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#3 | |
Join Date: Dec 2003
Location: Arcadia, OK
Posts: 3,404
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Re: Just bought a ZR1 and had questions.
Quote:
It's hard to see if debris is restricting airflow through the radiator. Having said that, I wouldn't worry about it unless the fans won't keep it in the range of 195~215 @ hwy speed.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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12-31-2011
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#4 |
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Join Date: Oct 2011
Location: Between Texas & Calif
Posts: 120
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Re: Just bought a ZR1 and had questions.
By the way, welcome to the zoo!
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12-31-2011
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#5 |
  
Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,899
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Re: Just bought a ZR1 and had questions.
Throw away your Eckler's catalog.
Welcome
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1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project |
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12-31-2011
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#6 |
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Join Date: Dec 2011
Location: Fallon NV
Posts: 24
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Re: Just bought a ZR1 and had questions.
Thanks for the welcome and the advice. I'm surprised that the temperature fluctuations are normal. Jerry, went to your site probably going to be putting in an order for the oil cooler lines soon. You don't happen to sell those copies of the ZR1 shop manuals on CD do you?
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12-31-2011
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#7 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,609
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Re: Just bought a ZR1 and had questions.
http://www.helminc.com/helm/product2...490&itemtype=B
That's the link to Helm. They have the 90 set in stock. It's $157.00 + shipping. btw, welcome to the Brotherhood!   Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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12-31-2011
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#8 |
Join Date: Aug 2005
Location: Scottsdale, AZ
Posts: 2,446
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Re: Just bought a ZR1 and had questions.
Welcome, try Marc's chip, it does many things and turns fans on early
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12-31-2011
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#9 | |
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Join Date: Dec 2003
Location: Arcadia, OK
Posts: 3,404
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Re: Just bought a ZR1 and had questions.
Quote:
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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12-31-2011
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#10 |
  
Join Date: Apr 2007
Location: Northern VA
Posts: 2,651
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Re: Just bought a ZR1 and had questions.
Welcome aboard!
Here is a Ebay listing for a FSM CD http://www.ebay.com/itm/1990-CHEVROL...sories&vxp=mtr and LT5 supplement manual http://www.ebay.com/itm/1990-1991-19...sories&vxp=mtr
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
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