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Old 12-18-2009, 08:37 PM   #1
AkumaMotorsports
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Default Akuma Motorsports Nissan R35 GTR 3.8L Akuma turbos inside! - dyno pull


Akuma Motorsports presents you the ultimate Street/Road Course GT-R. This car is loaded with our Road Course Spec turbos and many other goodies to make this car nothing short of spectacular. The customer came to us and asked us if we were to do a GT-R how would we do it, well this is it. At Akuma we don't allow our customers to spend top dollar on parts that won't help them achieve their goal. We use our own racing experience and knowledge to our advantage when it comes to developing our products. Lets start with our Road Course turbos, if you look at the dyno graph below you can see that they have identical spool characteristics to stock turbos. You will get the responsiveness of the stock turbos but the power of larger turbos. How can you complain about that? They make well over 140 whp and 120 wtq over the stock GT-R at modest boost. Add our meth kit and you will see an easy 50-70 whp gain without a problem. Thats over 200 whp over stockbwith the same responsiveness and drivabiltiy!! They are a perfect compliment to your stage 2+ GT-R . Pictures of our build and turbos will be posted below. You can check out our blog for more pictures and descriptons.
Akuma Motorsports Blog

Event: Dyno Pull

Location: Akuma Motorsports. Morganville, NJ

Ambient Temp: 50*

Weather: Sunny, cold

Tires: Stock Dunlop GT-R All Season



Car: 2009 Nissan GT-R

Tuner: John Shafer (Akuma Motorsports)

Dyno Info: Mustang

Peak HP at RPM: 541whp @ 6500rpm

Peak Torque at RPM: 506 wtq @ 5000

Baseline hp/tq for a stock on same dyno: 385/380 on our Mustang dyno

Target Boost: 18 psi

Fuel: 93 octane

Engine/Power Modifications: Akuma Motorsports Road Course spec turbos , Mines Titanium Exhaust, Akuma Y-pipe, Akuma intakes, Harman Motive Downpipes, HKS EVC 6 boost controller, Espirt intercooler with intercooler piping kit, Synapse GT-R BOV Kit, Okada Plasma Coils, Akuma Spec Deatschwerks 730cc injectors

Driveline Modifications: Stock Tranny

Suspension Modifications: Tein Super Circuit Ultimate Spec with dual EDFC

Other Modifications: AP Racing 2-piece rotors, Endless ME-20 Brake pads, Endless Swivel Type Stainless Steel brake lines. ATE Super Blue brake fluid














Now that you've seen the heart of the power, here comes the rest of this monster.
The Mods List:
Power:
Akuma Motorsports Road Course Spec Turbos
Cobb Accessport with custom Akuma Tune (tuned by GT-R expert John Shafer)
Akuma Motorsports Big MAF intakes
Akuma Motorsports Polished Y-Pipe with custom 3" v-band to fit Mines Exhaust
Mines Silence-VX Pro Titan II catback exhaust
Harman Motive downpipes
Okada Project Plasma Coils
Deatschwerks one off 730cc injectors
Esprit Intercooler Kit with aluminum piping
Synapse BOV GT-R spec kit

Braking:
Endless ME-20 Racing Compound brake pads (front and rear)
Endless Swivel Type Stainless Steel brake lines
AP Racing 2 piece rotors (front and rear)
ATE Super Blue Racing brake fluid

Handling:
Tein Super Circuit Racing Ultimate Spec Coilovers
Dual EDFC for compression and rebound

Corner Balance and Aligned by suspension guru Robert Fuller (Robispec)


Boost Control:
Forge Actuators
HKS EVC 6 tuned with Easy Write software

























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Last edited by Audiosavvy; 12-20-2009 at 05:49 PM.
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Old 12-18-2009, 08:40 PM   #2
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That powerband looks ridiculous. 450ish whp at 3200 RPM?! I bet that car is good fun on the street.
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Old 12-18-2009, 10:27 PM   #3
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+1 Nice setup and tuning John!
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Old 12-18-2009, 10:35 PM   #4
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wow! sure wish i had the money to buy a gt-r cuz these things got some potential!
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Old 12-18-2009, 11:55 PM   #5
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very very impressive john.....nice to see someone not scared to build one of these.....i see them every day at the dealership and most who own them are hamsters who dont even know what the car is.......i have to some visit you guys

-adam
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Old 12-19-2009, 12:31 AM   #6
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Quote:
Originally Posted by Clark_Kent View Post
That powerband looks ridiculous. 450ish whp at 3200 RPM?! I bet that car is good fun on the street.
You mean 450 ft-lbs? 450 whp at 3200 rpm would be ~740 ft-lbs... which would be stupid ridiculous.
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Old 12-19-2009, 12:45 AM   #7
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seen that car in real life and its no joke...keep up the good work akuma
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Old 12-19-2009, 01:12 AM   #8
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Are the tein coilovers actually better then the stock GT-R suspension? I'm always wondering that- is changing the suspension on such a ridiculously factory tuned car really going to improve handling? Oh and nice work on the car...do you guys offer ride alongs? lol I'll pay!
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Old 12-19-2009, 09:36 AM   #9
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Thanks for the kind words everyone, we try to work very hard in doing all the R&D to ensure you get the best product possible. These are the cream of the crop when it comes to the Teins. And also the car being corner balanced and aligned by Robispec makes this 3800+ lb car seem like a go kart.

-Alex
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Old 12-19-2009, 10:31 AM   #10
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Wow John impressive!
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Old 12-19-2009, 10:35 AM   #11
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450 ft lbs at 3200 is just plain stupid. going by your evo dyno graph and previous dynos done, your dyno obivously reads low. i cant even imagine what numbers it would make on another dyno. all that matters though is the beautiful 1/4 time!
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Old 12-19-2009, 11:58 AM   #12
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with that kind of power can you still even drive it in the snow?

has anyone gotten a gtr into the 9's yet? last time i looked i think stage 2's were running low-mid 10s !!
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Old 12-19-2009, 11:58 AM   #13
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+1000 for trap speeds will tell the real deal...
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Old 12-19-2009, 12:08 PM   #14
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Very nice! At what power level will they need new gears?
PPGs
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Old 12-19-2009, 01:24 PM   #15
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Great work. Im curious, how does the car drive on the track after changing suspension and boost to non-ecu controlled pieces?
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Old 12-19-2009, 04:52 PM   #16
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To put it simply... I don't care what you drive or have driven... This gtr puts it to shame! The car is just simply staggering. The handling reminds you of a go kart, yet it remains extremely refined. The braking will quite simply snap your neck. The quick response of the powerband and the overall power combo is mind blowing. It quite honestly changes the way you view cars. The best part is that your little sister could still putt around In it without a hiccup!

As far as trap times, we recently finished a car that put 340 hp on our dyno and trAps consistent 116-118mph!! This car most likely will not be wasted on the quarter mile though. The owner will put the vehicle through it's true paces on the road course.

I'm sorry if it seems like I'm exaggerating, but after driving this car, there's really no way to accurately express myself.

Cheers,
Evan @ akuma

Last edited by Dom Terreto; 12-19-2009 at 04:59 PM.
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Old 12-19-2009, 06:43 PM   #17
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Quote:
Originally Posted by Capt Crunch View Post
You mean 450 ft-lbs? 450 whp at 3200 rpm would be ~740 ft-lbs... which would be stupid ridiculous.
Yes, ft-lbs. Good catch. I can't imagine that kind of power down low. Incredible. Maybe I need to stop playing with F/I cars with small motors.
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Old 12-19-2009, 07:40 PM   #18
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Amazing results. That torque curve is really insane. From about 3K rpms until redline it stays above 400ft-lbs.

Dayum!!!
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Old 12-19-2009, 08:48 PM   #19
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So whats the specs on the turbos?

ie. what makes them "your" spec turbo?
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Old 12-19-2009, 09:02 PM   #20
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Impressive!


Please update your opening post to reflect the required format in this link, to avoid having this thread closed
http://forums.nasioc.com/forums/show....php?t=1858764
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Old 12-20-2009, 02:24 PM   #21
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So it would be a good assumption that this is the same dyno as that fp red evo on 25 psi?
Good God!! Please get a trap speed for this beast.
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Old 12-20-2009, 03:40 PM   #22
AkumaMotorsports
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Same dyno, yes sir.

These are our turbos because we have them made for us specifically for our shop. We offer two versions for the GTR community. These are similar to a GT28RS with the extended tip technology. Similar to FP's HTA spec wheels.

Thanks for all of the positive results. We have been tuning/building quite a few different platforms lately. Don't worry we will get the Suby love going very soon. We have a modified Borg Warner Rotated kit coming very soon. I have an HTA 3082 on the STI now, and we will get the Borg next week for side by side comparison. Should be very cool stuff.

John

-Adam, you should def. stop by some day and see the shop.
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Old 12-20-2009, 04:08 PM   #23
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Quote:
Originally Posted by AkumaMotorsports View Post
Same dyno, yes sir.

These are our turbos because we have them made for us specifically for our shop. We offer two versions for the GTR community. These are similar to a GT28RS with the extended tip technology. Similar to FP's HTA spec wheels.

Thanks for all of the positive results. We have been tuning/building quite a few different platforms lately. Don't worry we will get the Suby love going very soon. We have a modified Borg Warner Rotated kit coming very soon. I have an HTA 3082 on the STI now, and we will get the Borg next week for side by side comparison. Should be very cool stuff.

John

-Adam, you should def. stop by some day and see the shop.
hopefully my wagon will also be running soon.
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Old 12-20-2009, 04:17 PM   #24
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Sick car
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Old 12-20-2009, 04:28 PM   #25
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Open for bidness

Last edited by Audiosavvy; 12-20-2009 at 05:50 PM.
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