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2011 GTM supercharger Nismo forged engine build

Originally Posted by SG4247 Just a note.. but, my JWT cam lobes would strike the ladder in a couple places. My heads are off a 2010 MY so not sure

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Old 06-06-2022, 08:34 PM   #16 (permalink)
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Quote:
Originally Posted by SG4247 View Post
Just a note.. but,

my JWT cam lobes would strike the ladder in a couple places.

My heads are off a 2010 MY so not sure what yours are - or even if they are affected.

Better to know and check now, vs later.
My heads are from 2017 and even though it didn’t touch it was too close for my comfort. I did some grinding on both heads for better clearances. One side was very close to spark plugs tubes and other seemed like it was very close to the actual edge of the head casting so girded that as well. Thanks for the heads up though.
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Old 06-24-2022, 12:32 PM   #17 (permalink)
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So it looks like tomorrow is the day for first start up. Excited but slightly nervous. Got my radium surge tank installed, got the base tune for 100octane. Tried to build some oil pressure by cranking the starter but nothing. Tomorrow I will pressure fill oil through the pressure switch to aid priming of oil pump and fill oil passages.
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Old 06-26-2022, 08:12 PM   #18 (permalink)
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She is running! Start it right up. Let it run to operating temperature for 15mins with blipping throttle. Runs great. Drained oil, replaced filter, put it all back together and as soon I was gonna go for it’s first ride I slightly touched coolant reservoir and it fell in.
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Old 06-26-2022, 10:04 PM   #19 (permalink)
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Replaced the reservoir. Local autozone had it. Actually oem Nissan part. Drove it 15 miles and runs good! No leaks, no overheating. Boundary oil pump definitely upped the pressure. Dyno tune scheduled for 7th of July .
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Old 06-27-2022, 07:04 PM   #20 (permalink)
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Video of first start up.

https://www.youtube.com/shorts/PjybfhRUEuI
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Old 07-04-2022, 07:55 PM   #21 (permalink)
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So drive over 125 miles total so far and encountered small issues. After installing radium surge tank I can’t get the fuel level gauge to read properly. Since I always had funky fuel level readings I decided just to order new sensors but still nothing. It shows no fuel in the tank. I have to go back in there and do ohm readings and see what’s wrong. Another issue I have which I didn’t notice until I decided to drive the car, shut it off and then restart when hot. I would usually take the car out of the garage, drive it for 20miles and then park it back and recheck. Never restarted it right after. Few days ago I took it out then drove it for 10mins and shut it off. 5 mines later slow crank(did have weak battery) but even with a jumper it had real hard time starting. At 3rd or 4 th try I decided to give some gas and it fired up. It happens every time when I try to start it right after driving when it’s hot. Cold start are very much normal. Replaced the battery with new antigravity which was on my list anyways. Tested it again for hot start, same thing, slower crank and no start until added the throttle then starts. Decided to change the starter thinking when heat soaked could be causing hard starting. Fast forward, with new starter the hot start issues continue but this time the engine turns much faster with new starter so I think it was on its way out anyways. Since I’m running only base tune, my diagnosis it must be the tune, running very rich causing hard start. At least that’s what I’m hoping it is.
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Old 07-04-2022, 09:45 PM   #22 (permalink)
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Fuel level fixed. Turned out the pins turned inside the surge tank when in tightened the top part and were touching. Readjusted and all good.
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Old 07-08-2022, 06:56 AM   #23 (permalink)
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Car was dropped off yesterday morning at RT Tuning. Had uprev but switching to ecutek. Dyno day is today! Hoping for trouble free session 🤞
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Old 07-10-2022, 08:00 AM   #24 (permalink)
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So dyno session went pretty well. Switched to ecutek and upped the limiter to 7800 RPM. It was about 98F out and was down 3lbs of boost due to ati pulley. Was bummed out a little bit on lower power but my butt dyno proved me wrong. The car drives and feels like never before. Torque comes on very quick and lively. First Track day and a shake down on Monday at NJMP.
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Old 07-12-2022, 11:38 AM   #25 (permalink)
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Track shakedown completed. Ended up running 3 sessions before ran into a small issue that ended my day. Goal was too take it easy and increase the speed with each session as long every thing checks out. First 2 session 50% throttle and 5k rpms but still felt quick. After 2 sessions I was getting little more comfortable so went ahead and drove little more aggressive the next session reving it close to 5500 close to 6k rpms. It felt really good and was hoping to basically go all out by the end of the day. Unfortunately my supercharger oil line was touching the exhaust manifold and ended up melting the line and leaked all the oil out. Thankfully it happened right after I parked the par in the pits so no fluid loss at the track. Overall pretty happy with how little issues I came across. I am pretty confident that the next track event the car will be ready and go all out.
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Old 06-21-2024, 02:36 PM   #26 (permalink)
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Cool build. Car looks bitchin. Hopefully he still has it and tracking it!
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Old 06-22-2024, 08:32 PM   #27 (permalink)
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Quote:
Originally Posted by Rjk370z View Post
Cool build. Car looks bitchin. Hopefully he still has it and tracking it!

Agreed^ car looks amazing. The Nine Lives Big Wang is incredible.

Coincidently I just added some heat sleeve on the supercharger oil line that runs next to the manifold because I was nervous it’d get too hot. And now I’m reading OP’s last post of this very issue…


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Old 06-23-2024, 10:28 AM   #28 (permalink)
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Maybe I should give an update. She’s still running! Unfortunately my own engine build didn’t last and it failed.
Turned out to be my own fault and mistake I made during assembly. I take that as a learning experience. Since then I threw an 2020 low mileage engine in, upgraded 1.5 stage unit to stage 2 compressor. Made 530whp at the dyno and she’s been running strong. Here are my most recent track onboard videos.

https://youtu.be/4ZIQKk_Q7ks?si=7DFVDveIXkSb25GV

https://youtu.be/fyB2PlzGqSQ?si=FRdUCpHORbbLKyIC
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Old 06-23-2024, 03:46 PM   #29 (permalink)
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Just curious what went wrong with the engine build?

Is that airfoil setup custom or does Nine Lives offer a dual element setup? Don’t remember seeing that on their website.

Care to share any info about cooling? It’s asked constantly on here but what is your oil cooling setup? Also, are you running the stock GTM 13-row supercharger oil cooler, or did you upgrade to something bigger for track duty?


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Old 06-23-2024, 04:30 PM   #30 (permalink)
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Was recommended to use a arp stretch gauge to tighten the rod bearing bolts. I had no prior experience with that tool. It was pretty tough to use it because of limited space. The #5 rod bearing failed most likely because I over tightened and it was too tight of a clearance. At least that’s what I think happened after tear down. Basically metal shavings ruined everything else. I was pretty bummed out.

Nine lives racing they sell a dual element that you can add to your existing wing. It does work very well. Built my own splitter with nine lives racing splitter ramps.

When it comes to cooling I have pretty much under control.
Csf triple radiator. No more ac so scrapped the condenser. Definitely improved air flow especially with intercooler in the front.
Trackspec hood vents.
30/70 coolant ratio with water wetter. Z1 low temp coolant regulator does help alot. Ran mishimto prior but it was running engine too cool unless it was high 90s F ambient.
Still running gtm 25 row oil cooler with auxiliary fan and without thermostatic plate. It’s in the fender area. Made ducting and louvered fender liner. Don’t mind the Home Depot hoses. Needed to get it done for that weekend.
Biggest gains were from opening up the front bumper area, making a ducting towards the intercooler/radiator area. Also adding a splitter helps direct a lot more air into the bumper opening. I was surprised how much of a difference it made. I can do most of the 20min session without worrying about temps. Last track day I did sunny with 80F, the oil and coolant didn’t get pass 215F. Before after 2 hot laps I had to completely back off and let it come down on temps. It was very annoying.
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