Engine Dif

cre · 08-07-2007, 08:03 AM

Different compression ratio due to different pistons,
*slightly* different intake cam,
GTE has oil squirters,
GTE's injectors are ~35% larger,
the N/A block doesn't have a place for the turbo's oil return or supply,
the N/A's thermostat neck doesn't have the fitting for the turbo's coolant routing,
the N/A will need an adapter for an oil cooler,
the GTE uses a higher amperage alternator,
the GTE's oil pump has a higher flow (IIRC),
the GTE's AFM is MUCH less restrictive and more accurate,
the N/A has valving to modify the intake air flow when driving at a high load,
the N/A's ECU uses a MUCH more aggressive timing advance map..... etc, etc, etc.

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08-07-2007, 08:03 AM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Different compression ratio due to different pistons, slightly different intake cam, GTE has oil squirters, GTE's injectors are ~35% larger, the N/A block doesn't have a place for the turbo's oil return or supply, the N/A's thermostat neck doesn't have the fitting for the turbo's coolant routing, the N/A will need an adapter for an oil cooler, the GTE uses a higher amperage alternator, the GTE's oil pump has a higher flow (IIRC), the GTE's AFM is MUCH less restrictive and more accurate, the N/A has valving to modify the intake air flow when driving at a high load, the N/A's ECU uses a MUCH more aggressive timing advance map..... etc, etc, etc.