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03 g35 vq37 swap ... Not your typical wanna know info thread

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Old 01-22-2016, 09:15 PM
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03 g35 vq37 swap ... Not your typical wanna know info thread

Ok so I've done research , people saying its not worth it it's hard blah blah blah , does anyone know if it's been done or no? I will tell you why.. I AM doing this swap.

I just picked up a decent shape mildly modded 04 brembo coupe that has rod knock

I already HAVE a crashed ( rear ended) but full running 38k mile 2010 370z nismo. I bought at auction for another swap that fell threw and already parted enough off car that I broke even and still have full drivetrain and it's still running in the bare shell. Fires right up. So I have EVERYTHING needed to do this expensive and extensive swap.

Both cars are 6 sp

Z fever is willing to make me a full drop in harness for 2400 which considering the amount of wiring that needs to be done it seems fair.

My questions are pysically mounting it as I can't seem to get an awnser anywhere.

What mount setup needs to be used ? Also driveshaft anyone know what one will work or do I need custom ? Any info is greatly appreciated. Thanks.
 
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Old 01-23-2016, 12:54 PM
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Sounds like a wiring nightmare. Why not save the $2400 and transfer the 37 cpu and harness over then worry about wiring into the ignition switch? Dont really see how a harness would make the new engine compatible witj it's VEVT and such.

I would pull both motors, measure the engine mount stud distances on both, if they match, great. If not, look into the locations they are on the blocks and perhaps you can put the 03 mounts onto the 2010 engine. After that, take some measurements to ensure the transmission and engine are the same length as each other. If they are, any 6mt drive shaft would work, unless the splines are different on the front end of the 2010 shaft. The 370 shaft will be too short.
 

Last edited by yosip1115; 01-23-2016 at 03:49 PM.
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Old 01-26-2016, 10:23 AM
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I am really considering using the full harness out of the 370 with cluster ignition ( since it doesn't have a regular key) im thinking I can swap everything over and possibly make a new dash out of the two ( g35 and 370) mold a few things and hsbe a custom setup. I should mention this car will be far from a daily driver, it mostly be used as my drift car as I do pretty much every event I can. Im going to start doing this withen the next week or so. Z fever claims plug and play with g cluster and everything if I go that route. We shall see but im leaning more to what you suggested and maybe save some money.
 
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Old 01-26-2016, 11:14 PM
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I would agree with Yosip: Would be easier and cheaper to carry over the 370 harness and make it work.
 
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Old 01-27-2016, 05:12 AM
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everything yosip said. dont bother with the harness
 
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Old 01-27-2016, 10:00 AM
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The 07-08 350Z came with an HR engine. So I would look to using those engine mounts, I believe it will bolt right in. You'll need the steering rack from an 07-08 Z also. The starter on the HR engine is on the opposite side as the DE and you'll need the rack to clear it.

As far as wiring, try to use as much of the 370Z harness as possible. The VVEL controller is up next to the battery so don't forget that along with the 370Z ECU. I'm used to engine swaps on older Nissans, but the concept is that you use as much of the donor harness as possible and only splice in the parts that need to interface with the chassis.

Driveshaft might need to be a custom piece, unless one from a G37 will fit.

I started seriously considering this when a friend had his 2011 G37 6MT totaled from rear damage, but the insurance buy back was too high to justify attempting.
 
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Old 01-27-2016, 10:32 AM
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you'd probably save yourself money and a headache by selling the HR motor and just buying a replacement DE.
 
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Old 01-27-2016, 01:41 PM
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Originally Posted by PhoenixG35
you'd probably save yourself money and a headache by selling the HR motor and just buying a replacement DE.
Well, duh, but where's the fun in that?
 
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Old 01-29-2016, 06:23 PM
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Originally Posted by LoSt180
The 07-08 350Z came with an HR engine. So I would look to using those engine mounts, I believe it will bolt right in. You'll need the steering rack from an 07-08 Z also. The starter on the HR engine is on the opposite side as the DE and you'll need the rack to clear it.

As far as wiring, try to use as much of the 370Z harness as possible. The VVEL controller is up next to the battery so don't forget that along with the 370Z ECU. I'm used to engine swaps on older Nissans, but the concept is that you use as much of the donor harness as possible and only splice in the parts that need to interface with the chassis.

Driveshaft might need to be a custom piece, unless one from a G37 will fit.

I started seriously considering this when a friend had his 2011 G37 6MT totaled from rear damage, but the insurance buy back was too high to justify attempting.

Very good insight.

Are you sure the starter would interfere? The starter for my AWD VQ was on the opposite side of the engine and both worked fine in my car. I ended up switching to a RWD starter and extending the wiring because the AWD one interfered with my turbo piping.
 
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Old 01-29-2016, 08:06 PM
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Originally Posted by PhoenixG35
you'd probably save yourself money and a headache by selling the HR motor and just buying a replacement DE.
I boight the car with intent to swap it , if I wanted a regular g35 I wouldn't of bother buying one with a knock in the first place.

I completly stripped donor car today, every wire possible out of car without a single cut. Pics up shortly as im cleaning up now but this really doesn't seem as hard as everyone makes it when you have a full donor car. Everything looks very similar and im used to engine swaps im not a novice by any means. It will run in a few weeks without a doubt.
 
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Old 01-30-2016, 10:28 AM
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Finally pulled the g in last night, getting ready to tear the DE out of it. I got a full house here in my shop im im a bit of a hoarder when it comes to jdms ha.

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Old 01-30-2016, 01:48 PM
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In doing some research on mount brackets , I know ebay isn't the best Credibal source but every 07-08 mount looks identical to 03-06 that are listed. And I've looked a handful, just don't wanna waste 70 bucks if they are in fact the same.
 
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Old 01-31-2016, 03:36 AM
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Tomm starts pull of DE engine , I ordered up a 07 350z rack and engine mount brackets for a suprisingly good deal on eBay. All from salvaged 07 z with 55k 120 shipped for rack and 70 shipped for brackets.

For exhuast I admit I'll be using cheaper reps. Dc "style" headers are a great deal at 278 shipped. Test pipes ect going to be all cheaper mandrel bent units connected to my ark exhuast. I've had tons of luck in the past with most of the exhuast parts I've used from ebay. They require a bit of fitting but well worth the hundreds in saving. Sonething like the exhuast if copied from a known performing piece and hold up I see no reason why to not use them mind you im not a fan of rep parts. There are very very few parts I'd use replica exhuast piping being one of them m.
 

Last edited by GTR203; 01-31-2016 at 03:47 AM.
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Old 01-31-2016, 05:03 PM
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Originally Posted by GTR203
Tomm starts pull of DE engine , I ordered up a 07 350z rack and engine mount brackets for a suprisingly good deal on eBay. All from salvaged 07 z with 55k 120 shipped for rack and 70 shipped for brackets.

For exhuast I admit I'll be using cheaper reps. Dc "style" headers are a great deal at 278 shipped. Test pipes ect going to be all cheaper mandrel bent units connected to my ark exhuast. I've had tons of luck in the past with most of the exhuast parts I've used from ebay. They require a bit of fitting but well worth the hundreds in saving. Sonething like the exhuast if copied from a known performing piece and hold up I see no reason why to not use them mind you im not a fan of rep parts. There are very very few parts I'd use replica exhuast piping being one of them m.
Just noticed you're from New Haven... Mind taking me for a spin when this is all done? I'll ride down with my G. I'm from the Torrington area, don't judge. ha. Why'd you buy engine mounts? Don't you have them already? lol.
 
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Old 01-31-2016, 07:27 PM
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Of corse I'll take you for a spin , if you ever want pop by my shop during the build fellow nissan enthusiast are always welcomed. As far as mounts go it seems like different threads say different things. That 03-04 arnt right and 370 arnt right, I'd have to use z33 hr mounts. Regardless it was only 70 bucks and now I have all three sets so one has to work.
 


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