Quote:
Originally Posted by 06WRBScoob
Our cars seem to have a nice place for the header to be (away from everything else).
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The headers are UNDER the block.... at a stop heat rises....straight into the block increasing your coolant temps which then increases engine temps. Not really the best place for headers really.
As far as the turbo getting too hot... The turbo is already seeing huge exhaust temps. Some guys even run a 'turbo bag' on the exhaust side of the turbo. By keeping the heat within the turbine the hot and expanding gasses will increase thermal efficiency of the turbine design. What is bad for a turbo is rapid heating a cooling. It can ruin the turbine. Also, the faster the turbo spins...the more cool air it draws in from the intake, helping to cool the charge temps and the quicker the hot air is pushed out the exhaust.