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DeWitts Radiator
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What pressure cap rating should I use?
I get asked this question daily and most people stress out over the decision when they really shouldn't. A coolant mixture of 50/50 has a boiling point of 223 degrees. Pressurizing the system will raise the boiling point by 3 degrees for every 1 psi on the pressure cap. A system with only a 7 psi cap will have a boiling point of 244 degrees and that should be a temperature that no system should ever reach. Typical pressure caps are either 13# (262 F) and 15# (268 F) and six degrees difference is nothing to lose any sleep over. Sometimes people will overfill the system and mistake expanding fluid for boiling fluid and think they need a higher pressure cap to prevent the coolant from escaping. After the coolant has exhausted to the driveway and the engine cools down, they will re-fill the system and continue the cycle over and over.

http://www.dewitts.com/blogs/news/13852841-what-pressure-cap-rating-should-i-use

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See DeWitts at Bloomington Gold Corvette Show next week

  
Bloomington Gold 
Date:  June 27-29, 2014
Location: U of I fairground Champaign IL

Spaces:  E110-113

www.bloomingtongold.com

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Aluminum Radiators for LS series engine conversions

New economy single row radiator for C4 Corvettes
 We are pleased to announce the release of our new single row radiators for C4 Corvettes. This new design features a single 38mm tube and reduced fin height, which allows for more tubes in the same given space.  A special internal tube design creates turbulance which increases heat rejection over laminar flow designs. The best part is the core cost less to manufacture and this saves our customers money. The early unit for 1984-89 is part number 1129084A and the later unit for 1990-96 is part number 1129090A (Auto) and 1129090M ( Manual)  

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Bloomington Gold Event in St. Charles IL
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