Thread: Detroit 8v71TI
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Old 09-05-2014, 02:21 PM   #3
kulas44
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City: Venice Louisiana
Country: United States
Join Date: Dec 2013
Posts: 1,097
Compression ratio is lower in the TIs than on a NAs. Low cylinder temps are a problem on TI engines that are not loaded enough (ran slow). Serious cylinder glazing can occur if operated to long at low power. You can remove the turbos and intercoolers and go to a 7E55 injector (318 hp in the NA engine) and reduce or eleminate the low load problems, but you still have the lower compression ratio, which basically just lowers the power output even more. The 7E55 injectors are the latest Calif. bus version and pretty much fix the smoke proble. The timing could be adjusted to partially compensate for the lower cr.
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