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kind of the same logic i when through. i sold my FAT shroud and fan assembly and bought the DTM for the same price as selling those used (had even more into them). my head temps dropped 75-100 degrees each side and went from up to a 50 degree difference per side with the FAT shroud to at most a 25 degree difference per side with the DTM and most often dead on. running normal i am 225 each side. under heavy load i have yet to get them over 250. that's with a 2316 at 9.7:1 with 2.0l heads running 93 octane (best we have here).
that said, i love the looks of the 911 shroud more. i just decided i like my engine staying cool and living longer more. Jake is the only one i know that has put the time into testing that many shrouds, is willing to share all of his findings publically and i know for a fact that i can trust him and his information. that lead me to the decision i made. i know he has spent some time looking at impoving 911 shrouds, but was not able to complete the study with any meaningful results.
i'm sure there are ways to improve it. i personally would love to see that happen. just love the look and the sound. it all comes down to what is your acceptable level of cooling. they all cool.
keep at it Bry (and Sandeep)...even if you go with a DTM or other 911 shroud.
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