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Twin Turbo (CARB Legal) 2018 370z NISMO
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http://www.the370z.com/members/karlk...fore-after.jpg
I finally did it. I've wanted to get my car supercharged for years (see Supercharging in Cali), but was worried about voiding the warrantee and making the car less reliable. But my warrantee is expired now (early 2018 model) and earlier this year, Eugene Turkov (ByThaBay) got his Twin Turbo kit CARB tested and approved. So it was time! It's not the cheapest forced induction option, but it is pretty competitive with the other twin turbo kits. I can’t legally crank the boost up as high as those of y’all outside of cali, but it’s still pretty quick, and hopefully a bit more reliable than the old stillen kit, which is the only other kit that's CARB exempt. - kit: https://vq37tt.com/products/eac-twin-turbo-kit - install: https://vq37tt.com/products/eac-twin...t-installation It's got: - 2x Nissan R35 GTR Turbochargers (re-built by PT Turbo) - Turbowerx Exa-Pump Oil Scavenge System - Z1 Urethane Adjustable Engine Mounts - Denso R35 GTR 650cc Fuel Injectors - AAM Stage 1 Intercooler - Omni 4 Bar Map Sensor - Custom fabricated aluminum piping + black powder coat - Z1 Oil Pan Spacer - Z1 Oil Cooler I just got the car back today, just about 3 weeks after I dropped it off. Pretty quick turn around! Still need to dyno it and get the final tune. But so far the car runs pretty great! It's definitely got a monster under the hood waiting for me to let it out. Worth noting, we had to delete the NISMO body damper bar, because it overlapped with the oil cooler and pipes. The intercooler might have a little bit of the same effect tho. It's unclear if the bar is necessary off the track, but it's a bummer to lose it (it's not cheap). Will add some more pics soon! |
Well, the kit makes more power than the stock Exedy clutch can handle!
Surprisingly, the car still hit the advertised peak numbers (430/400): - 427 whp @ 6220 rpm - 406 ftlbs tq @ 4270 rpm It could have made more, even with the stock nismo exhaust, on pump 91 octane, with the cats still installed, but we found out that hard way that the Exedy clutch is only rated for 383 ftlbs torque. The power curve hits that and the clutch slips. It’s still totally drivable day to day, but it slips if you floor it. Honestly, I drove it around town for a week and never had enough road in front of me to floor it, so I didn’t notice. But I’m probably gonna have to get the JWT clutch, rated for 600 ftlbs, to get full value out the kit, especially if I want to track it. |
I just found out about this kit today, I will be following this thread. Are you driving the car now or waiting for the new clutch? I am really glad to see another CARB approved option for us, I didn't think it was possible!
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Slipped under my radar as well. Keep us up date in the progress of the build!
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The JWT clutch is installed and works like a charm! It handles all the kit torque just fine. It's a little stiffer, a little heavier, but not too bad.
I just got back from a road trip up to Oregon and Washington. Put another 2.5k miles on the Z. lol, it needs another oil change now. Destroyed a Challenger in the norcal mountains. Good times! It's great having the torque to pass just about anyone, even going up hill, and still have more to spare. The KW v2s and Potenzas did a lot of the leg work keeping me from flying off a cliff, I'm sure. The dyno trip got delayed, tho, along with a chance to film a few drive-bys. I'll post the new numbers when I have them. |
Glad to hear you're enjoying the car! Hope we can meet up next time I'm in the area.
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New oil can and washer fluid reservoir are installed!
The turbo kit originally came with 2x prototype oil cans, one on each side. The turbos are too low to drain straight into the engine oil pan, and the kit comes with a scavenge pump, but the oil cans add a little extra buffer so the oil can expand when hot or collect if the scavenge pump isn't running, without backing up in the turbo and coming out the exhaust. Anyway, the prototype cans were temporary and the new oil can is a single larger can that sits up front behind the intercooler. This way there's only one place to service that's easier to access and the piping to the scavenge pump can be more efficient. I don't have a side pic, but here's the underside. http://www.the370z.com/members/karlk...-can-front.jpg When the turbo kit was first installed, we had to delete the washer fluid reservoir to make the new piping fit. This seems pretty common with other kits too. So Eugene's been working with the guy from 370zed.com, who designed a new smaller washer fluid reservoir, and it's finally ready. Smaller than the original, but nice to have! http://www.the370z.com/members/karlk...-reservoir.jpg Both of these will come standard in the full turbo kit going forward. And it sounds like Eugene will soon be offering a smaller "tuner kit" without these and other supporting parts, for those looking for just the bare essentials. Heading up to Mendocino next weekend to get new numbers now that the JWT clutch is installed. Stay tuned (pun intended) for results from the dyno! |
Nice work, I'm interested in that washer bottle. They don't seem to have anything up on 370zed.com yet unfortunately.
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Nice build! I just finished up my build this weekend and hit the dyno! Interested to know what kind of money you spent on your build. mine is A LOT lol
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Yeah, I got the "EAC Twin Turbo Kit" I linked in the first post that has the CARB exemption (EO# D-873). I also had Eugene install it.
Prices were as listed on his website for the kit + install + tax (around $21k in CA). Then add some other odds and ends on top, like oil, oil filter, brake fluid, coolant, etc. Then I also replaced my 2018+ OEM Exedy clutch with a stronger JWT HD Clutch, along with a new JWT CSC, and resurfaced my flywheel. All together the extra parts and labor there were around $2k. But if you have an pre-2018 model, the stock clutch should be fine with the kit. Bonus: The kit was recently featured in MotorTrend: https://www.motortrend.com/reviews/e...infiniti-vq37/ The headliner pics are other cars, but if you scroll down a bit, that pic of the nismo engine bay is my car. :) |
Here’s the car on the dyno:
https://www.youtube.com/watch?v=Ix6lFG8EHiI In 4th gear, the curve looks nice and smooth and peaks at 427 whp and 407 ftlbs. http://www.the370z.com/members/karlk...o-4th-gear.png You can see that the torque is much higher than a supercharger at much lower RPMs. So it’s a lot of fun on the road! In 5th gear, it hits 435 whp and 416 ftlbs. http://www.the370z.com/members/karlk...o-5th-gear.png For comparison, here’s the stock Dyno sheet: http://www.the370z.com/members/karlk...ismo-dyno.jpeg |
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