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A test TAG was installed in this truck equipped with a 14 liter Detroit engine and Garrett turbo. The proto-type TAG used in this truck is very similar to that shown above for the HT60, but larger to fit the Garrett turbo. Here is some of what the driver had to say.
"The turbo air guide we installed in my Detroit diesel 60 series 550hp, 18 wheeler has made this engine even more pleasant to drive!! Immediately I noticed the 3-4 lbs. of added turbo boost and was really present in the lower rpm range 14-1600 rpms. It seems that electronic diesel engines tend to drop turbo boost @the lower rpm ranges which tells the boost control in the intake manifold to reduce the fuel rate. By keeping the turbo pressure up @ the lower rpm's it then keeps the engine pulling @ full power longer and helps get those big loads over the hills without shifting that next gear! Also I have noticed a slight drop in pyrometer temp. Also an added bonus when using the Jake brake to descend those long grades the 60 series Detroit maintains an additional 2-3lbs of boost which would indicate more retarding power!!! As previously stated loving every minute of the drive with the air guide!!
Mike"
This is only the first cross country run using the TAG and we hope to have more feed back from Mike and information about the TAGs results on the bigger diesel engines soon.
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