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9 second ls swap 260z build


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New to the forum here so ill start from the beginning. Picked up a 260z shell june 2018. Fairly bare. Had some seats, a steering wheel, a brake pedal, and suspension. No body wiring or drivetrain besides the diff and halfshafts. So first thing i did was called my tuner and had him get me a tune date for the car as he is usually out 3 months for tunes which gave me that much time to get the car road worthy so let the fun begin. My goal for the car was build something that was a blast to drive, runs 9s in the quarter mile and does 170mph in the 1/2 mile. 

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Started hunting for parts to get the ball rolling. Got a deal on a lq4 and m12 t56 I couldnt refuse. Due to my power goals I didnt want to do the header deal twice so I decided to try and make the arh headers work with the dirty dingo motor mounts and jtr trans mount. Since I got those mounts with the car.

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Got the fuel cell in. Made some coil relocation brackets. Then started working to get the headers clearanced to the steering shaft. That was essentially the only part that didnt fit well using the mounts I had. Got some wheels and tires also. 16x8.5 Circuit Performance CP25 and 245/50/16s. 

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1 hour ago, LooseRocks said:

3 months for a home build going from shell to dyno.  That's impressive.

Thanks. There was for sure a bit of luck going on finding parts and everything going together smooth. This was a year ago. I just recently finished putting a blower on it and it took all of 3 months to figure it out.

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14 hours ago, HuD 91gt said:

Nice job! We’re you able to keep the air filter where you had it in the above pictures?  When I attempted to mount mine there, the hood hinge kept hitting it.

Looks like i didnt add the picture. I had to 90 it as it didnt clear.

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16 hours ago, 1969honda said:

Very impressive, are you still running the stock rear and drive axles? I thought I could see a cv boot in one picture but not 100% on that.

Welded R200 and stock half shafts. Heres one that was on the car for the 9 second pass.

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First time to shift sector. On motor in full street trim went 147mph. And on a 200 shot 3rd through 5th 166. Pilled it up to a 250 shot and missed 4th gear to another 166mph pass. Noticed the car was missing a little so I thought it ate a plug. But it ended ip throwing a belt when i missed. So all of 4th and all of 5th on a 250 shot was done with no water pump. 280 degree water temp was no bueno.

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I thought that potentially the head gasket was compromised after that but did a 0-150 pull once I got home and everything checked out good. So that means it was time to get after some more 1/4 mile passes. Weighed in at just over 2500lbs no driver. Best pass of the day on a 200 hit once i grabbed 2nd netted a 10.3@139 and that was with a 4th gear miss. So I was quite happy with the results. Still on a welded r200 and factory half shafts.

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Decided to throw it back on the dyno to see what kind of numbers is was making with the 200 and 250 shot. This is just a small proton kit so I was skeptical it was making much over 600whp. Come to find out it made 598whp on the 250 shot and 603whp on the 200 shot. It was running out of solenoid and going extremely rich on the 250 shot. 

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