sonicii

seems unlikely, would need bit $$ spent, the higher powered VQ35 fitted to the V36 skyline were dual intake and were externally very different looking to the standard DE engine, it would require a complete ECU and wiring replacement as well as trying to get it talking to the factory auto TCU. They were also a VQ35HR, not DE. There also was no 'infiniti Skyline GT500' There was a Skyline GT-R GT500 race model but it had a RB engine, not a VQ. Even the V36 skyline with this engine won't do 4.9 sec 0-100 with it's 5sp auto, so I can't see a J31 managing this with it's 4sp slush box. As above.. pictures please!

Do you mean NATS? I think it is fairly heavily integrated, not sure if upRev will do it, or you need to go with a full aftermarket ECU. NDS certainly cannot.

According to epc data, the part numbers are the same, so they should be identical. Even lists the same part number for the VQ37VHR

have a read through this - was a CVT, but most things will be similar, somethings will be more difficult as some of the transmission mounts for the CVT were the same as the 6MT, but not the same as the conventional auto.

G35 might have a different ECU as they were OBD2 compatible, the V35 ECU isn't. That said, I have never heard of anyone having issues with a V35 350GT with uprev, maybe there is something a bit unique about yours. Sorry, I can't help much further.

I thought relocating the park brake was one of the difficult tasks, with some people cutting and welding part of the tunnel from a manual to get all the hand operated park brake to function properly?

Technically yes, but don't assume you can use the entire 80L tank capacity, once you drop below about 5L remaining you are going to start sucking air in corners/inclines.

are you basing your figures on how much fuel you are actually putting in the car? or what the fuel gauge says? Fuel gauges are usually not accurate enough to use for judging economy when they are working well. Fill the car, reset the trip meter, drive for a few hundred KM then fill the tank again, you can then work out your economy based on the distance you travelled and the amount of fuel used. My 6MT is usually in the mid 10L/100km with 100% light urban driving and mid 7s on the highway. If you are really only getting 200km from 32L of fuel, this is quite bad, coming in at 16L/100km unless you are almost always in heavy peak hour traffic.

I didn't think that was a problem on the 350GT? only on the early 370GT?

Fair enough, but I suggest you do your research first so you know what you are in for

Maybe, you probably need to leave the auto TCU in place so the ECU doesn't through a huge hissy. However, the ECU wiring will be the least of your hassles, search for threads from others that have done it, it is a huge job.. just sell your auto and buy a manual V35!

Fairly sure the CVT V35 sedan also had paddles

^^ agree with this, regardless of the solution, ensure the brakes are properly bedded in to prevent the issue re-occurring. The tyre guy is correct, an unbalanced wheel will cause a vibration all the time, not just when braking.

^^ wondering this too, unless someone has retrofitted them. Wondering if the OP means tail lights?

it has the low volume import sticker on the passenger door jam, so it will be a V36 370GT, it has just had Infiniti badges and driver airbag swapped on. As you say, it would never have passed compliance as it is, so would have been installed post import, unless someone has done a dodgy.

with multiple problems with seeming unrelated systems, power/earthing should be the first place to look.

^^ this.. light comes back on because the fault is still there, you need to find out want is causing it and repair it.

^^ this.. .unless you want to spend $$$ blazing a trail, then use the experience of others. Plenty of people have boosted a VQ35, some have done LS1 swaps. There has been a couple of VK56 swaps in a 350Z, but I believe it is very tight and not really cost effective.

V36 models built/sold during the time they were available locally will be ineligible for import. Anything built before that time will be. The V36 350GT sedan was only available early in the V36 run, well before the G37 was sold here, so will certainly be available for import

Sorry, no idea about the tensioner. I am dreading the day I need to do a tensioner or water pump on either of my VQs. I have had the a noisy fuel damper and it was a constant knocking sound that changes with engine RPM, not just at startup, so if that is what you have, it might be the damper, hold onto the fuel hose on the right side of the engine while it is idling, if you can feel it pulsing in time with the knock, this is probably where the problem is.

Does the security light stay on while cranking? these are the symptoms you will see if NATS can't read the key chip, or reads an unrecognised chip.

Just a quick question, did you clean up all the factory grounds first to give a good comparison? I haven't known anyone who has installed grounding kits on the skyline specifically, but from prior experience on other cars, results have varied from 'awesome improvement' through to 'no noticeable change' depending how good the factory ground connections are, even on the same model vehicle.

it is a 350GT... a GT350 is a mustang.. I would start with removing the battery terminals, cleaning and refitting, as it sounds like a bad connection.

The CC I have in mine basically splices into the throttle pedal sensor, so the CC just simulates the throttle input, if yours is the same, then I suspect either the CC unit is faulty, or the wiring harness used by the CC has bad connections. Mine went into limp mode on hard right turns at one point and it turned out to be a bad crimp on the CC harness, I removed the connectors and soldered all the connectors and the problem never occurred again.

If you have ever removed the factory HU, you will see why that is impossible, you require the AC controls to suit the double din fascia.