American Muscle in Japan - Twin Turbo Corvette Z06 Challenges Tsukuba Circuit

Hearing the deep rumble of an American built V8 down the straight at Tsukuba Circuit is something you don’t get to experience too often. It’s not completely unheard of, there are a few Corvettes that frequent Tsukuba that are owned by drivers here. Shigeto Nagashima’s 600hp, NA Z06 that is tuned by Advance Auto, consistently runs in the 57 second range. There is also Takayuki Matsumoto, usually seen in his matte pink RWB 993 ‘Phoenix’, who sometimes subs in his Chevy Service Miki tuned C6. With all that being said, Tsukuba has never seen American muscle quite like this.
After WTAC, Feras shipped his 1,300hp, twin turbo Corvette straight to Japan, where it now resides at Under Suzuki’s shop near Sagamihara. Over the past few weeks, Feras, supported by the friendly guys at Hoosier, have been working out the intricacies of Tsukuba’s TC2000 circuit and dialing in the car more and more with each event. After his third outing, he successfully put himself in the top ten fastest tuning car times at the track - 9th overall with a 53.191.
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Even Under had a drive in the Z06, albeit on the lowest power setting, and had a lot of positive feedback and feeling to pass on to the team. We caught up with them at the most recent Unlimited Works track day last week to get a closer look at the Corvette.
- Late model 427 engine built with a 2000 horsepower package using twin Garrett G35-900 turbos
- Low boost setting is 800 horsepower, and 1300 at the highest. The car is typically set at 1100
- 1:1 6 speed sequential six-gear sequential resulting in roughly 185mph top speed
- Bosch Motorsports ABS and 380mm/355mm Pro-System Alcon brake kit with PMU NASCAR pads
- Verus Engineering aero package with carbon-kevlar body from HGK. The car currently weighs 2640 pounds
- The Corvette is on 335 series Hoosier A7 tires
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[@ferasqartoumy]

Thanks for the love 🙏 stoked to be at Tsukuba! Truly a dream come true 🍻

[@NaritaDogfight]

Looking forward to the progress

[@evilblackcat6357]

Larry Chen did an interview with the guy about his car a month back on his channel when he participated in Sydney. The build is pretty wild for being relatively simple in comparison to others and he does it with a lot of donated parts too. Check it out if you get the chance.

[@FDCALI]

I would love to hear the side conversations the Japanese guys had seeing this thing rip around the track. It's also so inspiring seeing a privateer, although he has a lot of backing now, make it across the pond to the holy land with his car at Tsukuba! And how awesome is it that the Suzuki brothers and Kato lended him a hand. What'd you think of it Sean?

[@DIARRHEA-PANIC]

I'm sure it's nice to have some outsider competition, just to stir up the pot.

[@NaritaDogfight]

Sounded great, and Feras is a genuine guy. Seems like he's going to leave this car in Japan for a few seasons.

[@justchillin515]

Holy sh** that car has power, here in the states we only see them go straight. Beautiful to watch it be tamed correctly.

[@Boostguru]

the car runs in gridlife, check it out.

[@user-ed7rk3gg1y]

lol what? go to a track day, corvettes are some of the most common cars there

[@justinfrazier9566]

Are you serious? You see more Corvettes on road courses and autocrosses than you do at drag strips.

[@KyleOfTheNorth]

Bruh, go to a track... lots of corevettes cornering.

[@boogaluu292]

hahhaha what on earth are you on about

[@builtbybobby2417]

Legendary!!! I've been watching this build for a year now

[@spdcrzy]

Feras has already made history with this car, and he's only getting started.

[@adeadlyfart13]

Ah man this is just beautiful!

[@WinTuned]

Always great to see a world challenger at Tsukuba! Is this the world's quickest Corvette 🤯

[@DIARRHEA-PANIC]

This car and driver remind me a lot of Under. Not too fancy, but very committed 👌

[@NaritaDogfight]

They make a good duo

[@1loumellor51]

This is the coolest time to be alive.

[@NaritaDogfight]

Agreed

[@FBS_raceteam]

that turbo Ls idle is wicked

[@MattBeardless]

Fantastic to see another carbon kevlar Z06 in motorsport. There's one actually being used in UK drifting by Axel Hillebrandt with a Rotary swapped into it too.

[@NaritaDogfight]

interesting~!

[@MattBeardless]

@@NaritaDogfight It's a super cool bit of kit - sounds insane too as you might imagine.

[@croutix13]

Awesome !!!! Cette voiture a le diable dans la peau

[@rubenjimenez5213]

Awesome 💪💪👍👍

[@Hispeed1]

"How much downforce do you want?" Yes

[@xMattHoffman333x]

Needs more dogfight stickers on it!

[@NaritaDogfight]

agreed haha

[@stance46]

51.952! Let’s gooooo (updated run)

[@STABILBrand]

🔥🔥🔥

[@zeczy]

I wonder what time it would get on 295 A050s

[@NaritaDogfight]

295 would be a lot less tire haha

[@erickgoesbeep]

Are the hoosier a7 faster than the yokohama a050? or they about the same in terms of laptimes?

[@NaritaDogfight]

A050 GS is considered a faster tire, size for size.

[@Robert1187]

What did the japanese say about this car??????👀👀

[@NaritaDogfight]

They thought it was cool

[@hiks1969]

Very Fast!

[@user-jg8qh8yz2d]

アッパラティ！ アッパラティ！ アッパラティ！

[@roda1999]

Dang should be interesting not speaking the language of most of your crew/competitors/officials. Cant wait for the main event in a few weeks

[@NaritaDogfight]

Hoosier guys speak English, which is a big help