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HybridZ

73 240Z VQ37


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Hi everyone, I am at a good point with my build and wanted to share its history since its one of the few running and driving VQ37 swapped Zs in the country. I am going on over a decade of ownership. I originally bought the car from New Mexico and brought it over to Colorado. Come to find out, it was once a Colorado car also.

 

I picked it up in primer with a rebuilt engine but not really knowing too much about it since all I had were photos and the owners word.  The previous owner used it for autocross. The entire interior was missing and it had a rats nest for wiring. I remember it had a switch to manually turn on the fans. It also had a full radiator support and driver side frame rail replacement from a donor Z. I got lucky that this was done really well, I have had no problems getting the car aligned over the years and it drives straight! 

 

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I saved some money and got the car painted in black, the car was originally a yellow car. The painter actually welded in floor boards and frame rails and closed up the wheel wells from where they were cut for the ZG flares. The rear hatch had to get replaced since it had an inch of bondo over the key hole. Luckily, I was able to track a hatch from a 240Z in the junk yard (when is the last time you have seen that haha). I added sound deadner to the interior and then took the car to an upholstery shop to get the interior put it. I also added some nice gauges.

 

I was able to source some cheap Watanabe 16 inch wheels from yahoo auction Japan. They were different colors but I ended up paying around 900 usd after air shipping them spent another 300 getting them powder coated. I also picked up my Recaro seats from Japan. To this day I have no idea what car they came from but they are one of my favorite parts of the car. 

 

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The SUs where swapped out for a triple Mikuni 44s. I drove with those and even had them tuned but they were too finnicky at altitude. During this time I got into flipping carbs for resale. 

 

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I didn't want to deal with the Mikunis and decided to swap to fuel injection. I ended going Jenvey ITBs on Haltech. This setup actually worked great for about a year and even made it to the main page of my local Cars and Coffee.  Around that summer I started to develop some running problems where I was running too rich. On my way to the tuner the worst thing happened. The car caught fire. From what I could tell, the itbs backfired and caught the fuel line on fire. If anyone is running itbs on an L Series, I highly recommend an airbox. I got really lucky since a guy like 2 cars back behind me had a fire extinguisher and that the radiator hose blew and stopped the fire. 

 

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I sent the car over to my tuner/builder and waited on my insurance adjuster to visit the car. I was able to get a full payout through Hagerty and that kickstarted the funds to get my Z back on the road again. I knew I was done with L series. I never really wanted to build something that close to race car since I mostly drive my Z on the streets and occasional canyons. I wanted to stick something Nissan that could remain relatively stock. Something I could start up and just drive.

 

In the past I almost swapped VQ35HR motor and have always had that build in the back on my mind but I noticed that the engines were almost the same price as the bigger brother VQ37.  So I went with a VQ37 out of an automatic AWD G37. The reason I chose that engine was to avoid 370z's had been driven hard and the auto engines were cheaper with less mileage. The only change to the block that I needed was a lower oil pan from a RWD VQ and its bolts.  I sourced a transmission directly from Nissan since at that time it was actually only about 500 dollars more compared to a used transmission. I looked recently and it seems like the transmission have doubled in price since 2021 when I bought mine. 

 

 

Here are the photos of when I got her back. We ended up putting some flake in the engine bay since I grew up loving lowriders. I also installed a GTR intake conversion. It ended up being a bit of a hassle since the custom fuel rail didn't clear the injectors. We had to extend the fuel ports on the fuel rail to make them taller so that it could clear. I added a catch can since the car is set to vent to atmosphere. I pulled the headers and stripped them and cerakoted them also. The custom hood didn't make it out of the fire so I went carbon fiber. 

 

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Next I ended up getting the intakes extended to the front of the car to make it a true cold air intake. I recently took the Z engine harness apart and reloomed it and fixed one of my turn signals. Come to find out one of the wires was cut off. With the help of Dave Irwin, I was able to track down all of my missing grounds and also why both lights would blink at the same time (bad switch). I had an extra parts turn signal switch which I harvested and was able to get everything to work out.

 

I recently tackled getting my horn to work. I have never got it to work since my entire ownership. The guys at classiczcar forum really helped me trouble shoot it. Come to find out, my only horn didn't work and for some reason my steering rack wasn't grounded. This is pretty much where the car is now. I took her to a local car meet today and I am hoping to just get more seat time with her. 

 

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If anyone has any questions about the car or the swap feel free to message me. 

 

 

 

 

 

 

 

 

 

 

 

 

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Edited by Nismospek
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Yeah its a waste of money, it was a major cosmetic mod for the car. I think it was over 1800 with the conversion lower manifold, fuel rails, and gtr intake and cover and that was with me purchasing everything second hand. In the end the intake doesn't probably net any hp. I really dislike the stock plastic intake. It does get people confused at shows when I pop the hood though. 

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Those are Recaro LSB seats. Made 70s-90s and were available in a bunch of different makes overseas (BMW/VW/Ferrari etc), but in the US they came in the Mk2 VW Golf. 

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2 hours ago, calZ said:

Those are Recaro LSB seats. Made 70s-90s and were available in a bunch of different makes overseas (BMW/VW/Ferrari etc), but in the US they came in the Mk2 VW Golf. 

 

Yeah, but I haven't seen that pattern on any other car so I don't know what they came off. 

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