• Tech
    • Tech Category
      • Engine
      • Bottom End
      • Rods and Pistons
      • Head and Headwork
      • Cams and Valvetrain
      • Cooling and Heat Management
      • Intake
      • Headers and Exhaust
      • Rotary
      • Engine Management and Tuning
      • Drivetrain
      • Transmission
      • Clutch and Flywheel
      • Differential and Final Drive
      • Driveshaft and Axle
      • Axles
    • Tech Category
      • Suspension
      • Shocks and Coilovers
      • Springs
      • Swaybars
      • Arms and Links
      • Bushings
      • Steering
      • Geometry Correction
      • Suspension Setup and Tuning
      • Brakes
      • Wheels and Tires
      • Fueling
      • Forced Induction and NOS
      • Aerodynamics
    • Tech Cat
      • Electrical
      • Battery and Power Distribution
      • Electronics
      • Wiring
      • Electrical System Education and Troubleshooting
      • Lubrication
      • Interior and Controls
      • Exterior
      • Paint and Bodywork
      • Wraps and Film Protection
      • Exterior Care and Maintenance
      • Data Acquisition and Tuning
      • Fabrication and Safety
      • Tips and How-To
  • Projects
    • Make A-D
      • Acura
      • Integra (DC2)
      • NSX
      • CSF RSX (DC5)
      • BMW
      • E30 (SR20 Powered)
      • E36 323is
      • E36 M3 (Black)
      • E36 M3 (Silver)
      • E39 M5
      • E46 M3
      • E90 M3
      • E46 Racecar
      • Yost Auto E92 M3
      • Yost Auto F82 M4
      • Chevrolet
      • Camaro Gen5
      • Corvette Stingray (C7 Z51)
      • Corvette Stingray (C8 Z51)
      • GMC Canyon
      • Dodge
      • Viper GTS
    • Make E-I
      • Ford
      • E350 Tow Rig
      • F150 EcoBoost
      • Fiesta ST
      • Focus ST
      • Mustang 5.0 (Grey)
      • Mustang 5.0 (White)
      • Mustang S197 (Budget Track Car)
      • Mustang S550 GT
      • Honda
      • Civic EF Racecar
      • Civic Si (Coupe)
      • Civic Si (EP3)
      • Civic Si (Saloon)
      • EJ Civic
      • Polystrand CRX
      • S2000 (AP1)
      • S2000 (AP2)
      • Infiniti
      • G20 Racecar
      • G20 (P10 AWD Turbo)
      • G35
      • G37S
    • Make J-M
      • Isuzu
      • Vehicross
      • Lexus
      • ISF
      • SC300
      • Mazda
      • V8 RX7 (3rd Gen)
      • RX-7 (3rd Gen)
      • RX-7 Restomod (3rd Gen)
      • Skyactiv 3
      • Frankenmiata
      • Miatabusa
      • My Girlfriend’s Miata
      • Mitsubishi
      • EVO VIII
      • EVO IX
      • EVO X
      • CSF EVO X Racecar
      • Professional Awesome EVO VIII
    • Make N-P
      • Nissan
      • 200SX
      • 200SX SE-R
      • 240SX Land Speed Racer
      • 300ZXTT
      • 350Z
      • 350Z Drift Car
      • 370Z
      • GT-R (R33)
      • GT-R (R35)
      • GT-R (Team America BNR32)
      • LS S13
      • NX GTi-R
      • Pathfinder
      • S13 Drift/Grip Do-it-All Mega 240
      • Sentra SE-R
      • Sentra Spec V
      • Silvia
      • STurdteen Drift Car
      • Porsche
      • 991 GT3RS
      • Cayman (987)
      • Cayman T
      • Cayman GTS 4.0
    • Make S-Z
      • Scion
      • FR-S
      • Scion Tuner Challenge FR-S
      • TC
      • Subaru
      • Autocross BRZ
      • Legacy GT
      • STI (gen 2)
      • STI (gen 3)
      • WRX (GD)
      • WRX (VA)
      • Toyota
      • 4Runner
      • AE86 Corolla
      • GR Corolla
      • Starletabusa
      • Supra Mark IV
      • Tacoma
      • Tundra
      • Volkswagen
      • MKIV Jetta TDI
      • MKVI Golf TDI
      • MKVII Golf R
      • Sipster (Rabbit)
    • Other Projects
      • Powersports
      • Aprilia RS50
      • Aprilia SR50
      • Doodlebug
      • Ducati 998
      • Ducati Hypermotard
      • Honda Ruckus
      • Husqvarna TE610
      • Go Karts
      • Other
      • Sim Racer
      • Aurora Cobra
      • Garage
      • NP01 Prototype
  • Features
    • Features
      • Feature Cars
      • Drag Race Cars
      • Drift Cars
      • Land Speed Cars
      • Open-Wheel Cars
      • Rally Cars
      • Road Race Cars
      • Street Cars
      • Time Attack Cars
      • Drag Racing
    • Features
      • Events
      • Drifting
      • Land Speed Racing
      • Open-Wheel Racing
      • Time Attack Racing
      • Rally Racing
      • Road Racing
      • Car Shows
      • Columns
      • SlipAngle Podcast
  • Video
  • Shop *NEW*
  • MotoIQ Garage Services
  • About
  • Shop *NEW*
  • MotoIQ Garage Services
  • About
MotoIQ
MotoIQ
  • Tech
    • Tech Category
      • Engine
      • Bottom End
      • Rods and Pistons
      • Head and Headwork
      • Cams and Valvetrain
      • Cooling and Heat Management
      • Intake
      • Headers and Exhaust
      • Rotary
      • Engine Management and Tuning
      • Drivetrain
      • Transmission
      • Clutch and Flywheel
      • Differential and Final Drive
      • Driveshaft and Axle
      • Axles
    • Tech Category
      • Suspension
      • Shocks and Coilovers
      • Springs
      • Swaybars
      • Arms and Links
      • Bushings
      • Steering
      • Geometry Correction
      • Suspension Setup and Tuning
      • Brakes
      • Wheels and Tires
      • Fueling
      • Forced Induction and NOS
      • Aerodynamics
    • Tech Cat
      • Electrical
      • Battery and Power Distribution
      • Electronics
      • Wiring
      • Electrical System Education and Troubleshooting
      • Lubrication
      • Interior and Controls
      • Exterior
      • Paint and Bodywork
      • Wraps and Film Protection
      • Exterior Care and Maintenance
      • Data Acquisition and Tuning
      • Fabrication and Safety
      • Tips and How-To
  • Projects
    • Make A-D
      • Acura
      • Integra (DC2)
      • NSX
      • CSF RSX (DC5)
      • BMW
      • E30 (SR20 Powered)
      • E36 323is
      • E36 M3 (Black)
      • E36 M3 (Silver)
      • E39 M5
      • E46 M3
      • E90 M3
      • E46 Racecar
      • Yost Auto E92 M3
      • Yost Auto F82 M4
      • Chevrolet
      • Camaro Gen5
      • Corvette Stingray (C7 Z51)
      • Corvette Stingray (C8 Z51)
      • GMC Canyon
      • Dodge
      • Viper GTS
    • Make E-I
      • Ford
      • E350 Tow Rig
      • F150 EcoBoost
      • Fiesta ST
      • Focus ST
      • Mustang 5.0 (Grey)
      • Mustang 5.0 (White)
      • Mustang S197 (Budget Track Car)
      • Mustang S550 GT
      • Honda
      • Civic EF Racecar
      • Civic Si (Coupe)
      • Civic Si (EP3)
      • Civic Si (Saloon)
      • EJ Civic
      • Polystrand CRX
      • S2000 (AP1)
      • S2000 (AP2)
      • Infiniti
      • G20 Racecar
      • G20 (P10 AWD Turbo)
      • G35
      • G37S
    • Make J-M
      • Isuzu
      • Vehicross
      • Lexus
      • ISF
      • SC300
      • Mazda
      • V8 RX7 (3rd Gen)
      • RX-7 (3rd Gen)
      • RX-7 Restomod (3rd Gen)
      • Skyactiv 3
      • Frankenmiata
      • Miatabusa
      • My Girlfriend’s Miata
      • Mitsubishi
      • EVO VIII
      • EVO IX
      • EVO X
      • CSF EVO X Racecar
      • Professional Awesome EVO VIII
    • Make N-P
      • Nissan
      • 200SX
      • 200SX SE-R
      • 240SX Land Speed Racer
      • 300ZXTT
      • 350Z
      • 350Z Drift Car
      • 370Z
      • GT-R (R33)
      • GT-R (R35)
      • GT-R (Team America BNR32)
      • LS S13
      • NX GTi-R
      • Pathfinder
      • S13 Drift/Grip Do-it-All Mega 240
      • Sentra SE-R
      • Sentra Spec V
      • Silvia
      • STurdteen Drift Car
      • Porsche
      • 991 GT3RS
      • Cayman (987)
      • Cayman T
      • Cayman GTS 4.0
    • Make S-Z
      • Scion
      • FR-S
      • Scion Tuner Challenge FR-S
      • TC
      • Subaru
      • Autocross BRZ
      • Legacy GT
      • STI (gen 2)
      • STI (gen 3)
      • WRX (GD)
      • WRX (VA)
      • Toyota
      • 4Runner
      • AE86 Corolla
      • GR Corolla
      • Starletabusa
      • Supra Mark IV
      • Tacoma
      • Tundra
      • Volkswagen
      • MKIV Jetta TDI
      • MKVI Golf TDI
      • MKVII Golf R
      • Sipster (Rabbit)
    • Other Projects
      • Powersports
      • Aprilia RS50
      • Aprilia SR50
      • Doodlebug
      • Ducati 998
      • Ducati Hypermotard
      • Honda Ruckus
      • Husqvarna TE610
      • Go Karts
      • Other
      • Sim Racer
      • Aurora Cobra
      • Garage
      • NP01 Prototype
  • Features
    • Features
      • Feature Cars
      • Drag Race Cars
      • Drift Cars
      • Land Speed Cars
      • Open-Wheel Cars
      • Rally Cars
      • Road Race Cars
      • Street Cars
      • Time Attack Cars
      • Drag Racing
    • Features
      • Events
      • Drifting
      • Land Speed Racing
      • Open-Wheel Racing
      • Time Attack Racing
      • Rally Racing
      • Road Racing
      • Car Shows
      • Columns
      • SlipAngle Podcast
  • Video
  • G37S
  • Projects
  • Infiniti

Project G37S Transmission Upgrade part 2

  • Aaron LaBeau
The tuning from UpRev unlocked so much usable power in the low end below 3900 RPM, there’s over 36 lb/ft over our baseline. Big gobs of horsepower too (over 24 hp) that will be great for daily use.

With the new tune, Omar unlocked 36.1 TQ and  24.7 HP in the very usable 3000 RPM to 3800 RPM range.  The broad power gains continued up the rev curve with a very respectable 12 hp and 13 lb/ft.  Maximum HP reading was 264.2 HP at 7180 RPM which is 11.3 more HP and 215 lb/ft at 5280 RPM or 13.2 TQ more than our baseline.  While our Superflow reads low these are really impressive gains across the RPM range and a testament to the tuning expertise at UpRev.

Don’t worry these shots look faster than they were. We got ‘off road’ for any real full throttle runs. The car drives so much better than before it really has been transformed from soft GT cruiser to performance machine.

At last, we got the car out for a little bit of a shakedown and the power delivery was amazing.  What can be best described as the engagement grip of the transmission to the engine is radically different.  The car feels fast, accelerates fast, shifts fast.  It is like a new car, only better and ready to handle a lot more power.  It’s actually fun to shift the car in manual mode now where the torque converter locks up 100% and shift through the gears. Gear changes are crisp and immediate and really shove the car forward.  This new transmission along with all the other parts we’ve added to date truly make this car feel special and unlike its roots of being a mass produced luxury GT cruiser. When we first spoke to Pat at Level 10 he said we’d really love the way the car shifted and after installing his transmission and driving it, he was right.

Sources

Level10

UpRev

Previous page 1 2 3
Related Topics
  • Drivetrain
  • Transmission
  • Engine Management and Tuning
  • Uprev
  • Infiniti
  • Level 10
  • G37S
  • Nissan
Previous Article
  • Features

SlipAngle Podcast /// Talkin’ GLTC

  • Abrin Schmucker
View Post
Next Article
  • Features

SlipAngle Podcast /// Beau Brown talks Tuning and Tracking

  • Austin Cabot
View Post
6 comments
  1. CTK says:
    June 5, 2019 at 5:16 am

    Surprised there is no love for this. I totaled my G37S at a track day and it still bums me out. But the transmission was a very weak link. I imagine this upgrade would really wake it up. How is the transmission for daily driving?

    Reply
  2. Aaron LaBeau says:
    June 5, 2019 at 8:29 am

    Daily driving is almost like stock. There’s definitely a difference when the transmission is cold versus warm; best described as a small stumble that happens between gear changes. Once warm though this completely goes away. When decelerating and the car downshifts the engine braking is definitely more pronounced. Not to repeat what was already put in the article but gear changes now really shove the car forward where before shifts really felt soggy. None of this takes away from the car it only adds to the grins and this upgrade appears to be a must for forced induction.

    I’m sorry to read about your car. Hopefully your replacement is just as fun or you took it as an opportunity to try something different. There are a lot of cool cars out there I’d like to try. If I had to do it over again maybe I’d try a Golf R or a Q50 Redsport or a 335. Price was the deterrent to all those cars 4 years ago when I bought the G37S so bang for the buck it’s hard to beat the Z or G37 as a GT car. I don’t need to daily drive the car anymore so something a little more extreme like a used Camaro ZL1 or a Corvette come to mind as does a Cayman or Boxter or BMW M car but the price-point is obviously higher and so are the repair costs which is why I’m still very into what I have.

    Reply
    1. Tom Wiebe says:
      July 9, 2019 at 2:19 am

      Hi Aaron, I have a g37s sedan that I have turned into a time attack track car. I definetly feel the transmission is the weak link. I really love the paddle shifters over a manual. Would you recommend this upgrade for the track? Does it make the car faster or just feel faster?

      Reply
      1. Aaron LaBeau says:
        July 10, 2019 at 8:17 am

        @Tom,

        Sorry I don’t have timed verification for you on the quicker shifting. I didn’t take the car to the track before to see how the car performed to then have a measurement after. My main concern was removing the weak link in the powertrain when we add more power. I would definitely recommend this transmission for the track with the note that you should add both an oil cooler and a transmission cooler. Stay tuned and you might see an article on that soon ;). The 370Z and the G37 both seem to do a pretty good job of running the fluids hot.

        I really do wish you could experience the Level10 transmission yourself beforehand to see how much better it is.

        Reply
  3. Khiem Dinh says:
    June 13, 2019 at 8:07 pm

    Ah man, I wonder how the good Dr. is doing. I loved watching the progress of his SE-R build with the transmission and turbo kit.

    Reply
  4. Aaron LaBeau says:
    June 14, 2019 at 9:42 am

    @Khiem, well I feel the same way about your S2k. This one has been fun as it has gone from daily driver to weekend toy. Hopefully, like you we’ll get to add a lot more power.

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

MotoIQ Proudly Presents Our Partners:

Input your search keywords and press Enter.