Hot or Not?
VMP Performance tests Heatshield Products’ I-M Shield on its GT350
By Steve Turner Photos by Steve Turner and courtesy of Heatshield Products
As the factory continues to squeeze more and more performance out of its vehicles the software in the PCM is also quick to reel in the ignition timing in response to heat. Since heat can lead to detonation, this is a wise safeguard. However, for those of us that want maximum performance at all times, keeping the inlet air cooler and the timing more aggressive is a great idea.
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