JDM vs USDM motor

[gja06]

So I'm in need of a new motor for my 91 tt. All I'm seeing online are JDM motors. Is there any big difference between that and USDM motor? Should I go ahead and just buy the JDM motor? Thanks.

[NolimitZ32]

Physically the only difference between the two is the position of the oil filter tree and a couple other insignificant things AFAIR. Now as for buying a JDM engine (its an engine, a motor is driven by electricity), I recommend that you read through he JDM Engine Experiences thread before making your decision.
jdm-engine-experiences-noobs-read-t530009.html

EDIT: This is incorrect, the Oil Filter Tree as pointed out by itsa300zx is always in the same location, it is the oil pressure sending unit that is on the opposite side on the JDM engines.

[MrFeesLaw]

Physically the only difference between the two is the position of the oil filter tree and a couple other insignificant things AFAIR. Now as for buying a JDM engine (its an engine, a motor is driven by electricity), I recommend that you read through he JDM Engine Experiences thread before making your decision.
jdm-engine-experiences-noobs-read-t530009.html

I would love to agree with you on the motor vs. engine discussion... But unfortunately I cant... According to the proper definition of a motor it can be powered by fuel, gas, air, electricity, or any other form of power. An engine, however, must be an internal combustion device. Therefore, an Engine is a type of motor, but not all motors are engines. I had argued for years with people over the motor vs engine discussion and finally looked up an article and was proven wrong... It broke my heart. Threw my whole concept of reality into question lol.

[itsa300zx]

Only the oil pressure sending unit needs to be moved to the other side. All else is the same

[NolimitZ32]

Physically the only difference between the two is the position of the oil filter tree and a couple other insignificant things AFAIR. Now as for buying a JDM engine (its an engine, a motor is driven by electricity), I recommend that you read through he JDM Engine Experiences thread before making your decision.
jdm-engine-experiences-noobs-read-t530009.html

I would love to agree with you on the motor vs. engine discussion... But unfortunately I cant... According to the proper definition of a motor it can be powered by fuel, gas, air, electricity, or any other form of power. An engine, however, must be an internal combustion device. Therefore, an Engine is a type of motor, but not all motors are engines. I had argued for years with people over the motor vs engine discussion and finally looked up an article and was proven wrong... It broke my heart. Threw my whole concept of reality into question lol.

http://www.engineering-dictionary.org/motor
In layman's terms you would be correct, the accepted definition has come to encompass all forms of machinery imparting motion through conversion of fuel source to physical energy, this is due to the general public's incorrect use of the term. In engineering terms a motor is propelled specifically by electricity.

Only the oil pressure sending unit needs to be moved to the other side. All else is the same

Oil pressure sensor attaches to the oil filter tree. EDIT: ON USDM MODELS ONLY

[itsa300zx]

Only the oil pressure sending unit needs to be moved to the other side. All else is the same

Oil pressure sensor attaches to the oil filter tree.[/quote]

Yes, for the North american (USDM)engine.
No, for the JDM engine. No room for it, as the steering linkage of the RHD, is in the way.

ALL VG30de(tt) engine have the oil filter on the right side.

[NolimitZ32]

You know what now that I think about it you are absolutely correct, my apologies. It's been a while.

[gja06]

Thanks for the responses guys! After reading that thread, I think I'm just going to take it to someone who rebuilds. Seems like the better option than buying a JDM engine.

I have 2 dead cylinders. Changed coil boots because of leaks, but that didn't fix the problem. Don't know what else it could be, and I have no time to do the work myself(not like I'm really mechanically inclined anyway). I know this'll cost me an arm and a leg, but oh well. Thanks again!

[NolimitZ32]

Go rent a compression tester from autozone and run a compression test on all the cylinders, also if you know anyone with the tools and know-how get a leakdown test done before you go throwing money at the problem. If the issue is electrical you will be mighty pissed having spent all the time and money on a rebuilt engine only to have the problem resurface.

[gja06]

Go rent a compression tester from autozone and run a compression test on all the cylinders, also if you know anyone with the tools and know-how get a leakdown test done before you go throwing money at the problem. If the issue is electrical you will be mighty pissed having spent all the time and money on a rebuilt engine only to have the problem resurface.

So here's the problem...the car is violently shaking and turbos aren't working. Guy I took it to said there was a leak and he changed the coil boots and that didn't solve the problem. He said I have 2 completely dead cylinders and that I need to take it to someone who does rebuilds.

[itsa300zx]

Go rent a compression tester from autozone and run a compression test on all the cylinders, also if you know anyone with the tools and know-how get a leakdown test done before you go throwing money at the problem. If the issue is electrical you will be mighty pissed having spent all the time and money on a rebuilt engine only to have the problem resurface.

So here's the problem...the car is violently shaking and turbos aren't working. Guy I took it to said there was a leak and he changed the coil boots and that didn't solve the problem. He said I have 2 completely dead cylinders and that I need to take it to someone who does rebuilds.

^^^ This guy does not seem to know his way around the Z32. Have you checked the injector/connectors yet?
There is no mention of that anywhere in this thread. Two dead cylinders could easily be injectors or PTU or just a bad connector. Do you know which two cylinders?
Agreed with NolimitZ32, also get someone in your area that knows these engines to look at it before dumping too much cash into a rebuild.

[nissanfreak12]

^^^ This guy does not seem to know his way around the Z32. Have you checked the injector/connectors yet?
There is no mention of that anywhere in this thread. Two dead cylinders could easily be injectors or PTU or just a bad connector. Do you know which two cylinders?
Agreed with NolimitZ32, also get someone in your area that knows these engines to look at it before dumping too much cash into a rebuild.

This is sound advice, you have a 91, which means you have the old style injectors. Those are prone to failure due to ethanol blends in the gas. Simple test is to grab an ohm meter and test them yourself. Hardest part is taking the connectors off, the rest is very simple. If they read between 10-14 ohms, they are good. 14.1+ they re bad. less than 9.99, they are bad. If two are bad, it is best to go to new style or phase II injectors. The others are not far behind.

An ohm meter is roughly $30 from the auto parts store and a necessity with these cars. Now go learn how to test, find a new mechanic, and post results. We will help you, thats what we do.

[franknickells]

Deleted for shameless plug. If you want to advertise on NICO go through the proper channels