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Need help on an engine swap.?

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Old 29 Nov 2010, 01:54 pm   #1 (permalink)
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Default Need help on an engine swap.?
im talking about an mr2 turbo. if i were to want to swap out the USDM 3s-gte engine and replace it with a JDM 3s-gte engine, would it be a direct fit? or are would i have to modify some stuff to get it to fit right in? im just being hypothetical, since i looked up online that the jdm engine has a bit more horsepower than the USDM engine. thanks!
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Old 29 Nov 2010, 02:09 pm   #2 (permalink)
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Should be a direct fit, both were made at the same plant using the same castings. Any difference in horsepower may be due to one or more factors that I simply don't know, and might even question and it's probably not much of a difference at that. Ask someone at a JDM shop about the HP question, and seek advice about fitment.
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Old 29 Nov 2010, 02:54 pm   #3 (permalink)
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This is what you're getting with the JDM motor: bigger injectors, ceramic CT20 turbo, no EGR, more aggressive cams, different oil cooler, and more aggressive ECU fuel map/ignition. The USDM motors are utilize MAF(and TVIS) vs the JDM motors use MAP. The internals are the same.































It should drop in just fine, but there should be some harness work involved. So you'd be looking at some writeups on a 3S-GTE 2nd generation being converted to 3S-GTE 3rd generation.
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