Current Articles Minimize

Entries for 'Mike Kojima'


Progress 370Z sway bars

Progress Group:  New Nissan 370Z & Infiniti G37 Sway Bar Set

370Z,com  Staff Report

The Progress Group, Inc. has developed a new anti-sway bar set for the Nissan 370Z and Infiniti G37.  Details inside...


[Read the rest of this article...]

Posted in: Magazine

Greddy 370Z Twin Turbo Kit! 

GReddy releases 370Z Tuner Turbo Kit!

MotoIQ Staff Report

Greddy's 370Z Twin-Turbo system boasts an impressive 175 horsepower increase at a mere 6.4psi of boost. Tuner Turbo Kits come standard with high quality components: twin TD06SH-20G turbocharger, heavy duty cast turbo manifolds, Type T external wastegates, Airinx intake system, x-large Type-29 R-Spec intercooler, smooth flowing aluminum piping, and a large capacity cast aluminum oil pan. 

[Read the rest of this article...]


Robispec Badass 370z street class time attack car

Robispec’s Street Class Time Attack Nissan 370Z, Simple is Better?

By Mike Kojima

Robispec is a Southern California tuning shop who’s specially is a rather unusual one. Instead of the typical shop in search of speed via the quest for more and more power, Robispec’s game is increasing lateral G’s, of the cornering kind. The proprietor of Robispec is Robert Fuller or Robi, one of our favorite people. Robi is always willing to lend a hand or give advice to whatever project we have asked him, either formally as our Project EVO IX or by helping us swing wrenches at the track. Robi is on our short list of people we call for help if we have a problem that needs solving.

About six weeks ago we got a call from Robi telling us he would have something special, a Nissan 370Z he was building for the SEMA show and the annual Source Interlink Super Lap Battle. As there has been a lack of serious Nissan 370Z parts development due probably to its sluggish sales, we eagerly awaited checking out what Robi could cook up in short order.

Posted in: Magazine, 370z

G-Spec Nissan 370Z brake line Infiniti G37

G-Spec Braided Steel Brake Lines for the Nissan 370Z Rock!

By Mike Kojima

We recently evaluated a set of G-Spec lines for the Nissan 370Z.  The G-Spec lines also fit the Infiniti G37 Sedan and Coupe. We installed them on the Killer B which is starting to become our official 370Z Project demonstrator vehicle.  The Killer Bee is a Sport Package 370Z with the standard factory big brakes.  Although the Sport Package 370Z has exceptional brakes, some improvement can usually be found by installing braided steel lines.  This is because stiff braided steel lines do not expand with pressure like the stock rubber lines

[Read the rest of this article...]

Posted in: Magazine, 370z

Nitto NT05 Review

Nitto NT05 Tire Review Staff Report

Although the Nitto NT05 was released a few months ago and is now somewhat old news, we would still like to report on it as we were part of the team that help conceptualize the tire from when it was proposed a few years ago.  Because of this attraction we are proud to see it on the market. Although Nitto has always had good product in its DOT Race and street tire market classes, Nitto was notably absent in offerings in the highest niche of ultra high performance near race, street legal tires.

[Read the rest of this article...]

Posted in: Magazine, 370z

Stock Nissan 370Z dual mass flywheel on right, Jim Wolf Technology lightweight Nissan 370z flywheel on left

Testing Jim Wolf Technologies Ultra Light Flywheel and Heavy Duty Clutch- Will it Work With SynchroRev? (New Video!) By Mike Kojima

From a performance standpoint, the Nissan 370Z probably is one of the best candidates for performance improvement from a lightweight flywheel because of it's extremely heavy stock clutch and flywheel. The stock flywheel weights a stout 32 lbs, the pressure plate 16 lbs and the clutch disc 3 lbs. That’s 51 lbs of rotating weight that must be spun to speed at the end of the crankshaft! Why is the stock 370Z’s flywheel so weighty? In an effort to reduce NVH (That’s engineers speak for Noise Vibration and Harshness) to extremely low levels, Nissan made the stock flywheel very heavy. The heaviness of the flywheel helps to smooth out power impulses of the VQ37VHR engine.


[Read the rest of this article...]


Stillen Gen 3 Nissan 370Z air intake

Stillen's Gen 3 Nissan 370Z Air Intake, Tested!

By Mike Kojima

Our test 370Z is a six-speed manual transmission sports package model equipped with a Stillen cat back exhaust, Stillen high flow cats and a Technosquare ECU reflash. For this test we used the Superflow AutoDyn 30 chassis dyno at Technosquare Inc.  As we have explained in previous tests, the AutoDyn 30 is a dyno that uses both inertial and static loading with weighted wheel rollers and an eddy current power absorber.  This is a very different method of measuring power from the common Dynojet dyno which is purely an inertial dyno.

From our sister site www.motoiq,com


motoIQ logo

We Launch MotoIQ, The high signal to noise ratio on-line  tuner magazine!

I am excited to announce that our sister site is live!  motoIQ is the merge of magazine quality journalism with the nimbleness of the internet. Check out our in depth tech, interesting features and stories from the tuner world like you used to read in Sport Compact Car and Turbo, the stuff that you miss reading and can't find. Best of all its free with no subscription cost. If you are interested in the 370Z you will love motoIQ!  Sign up today

Hope to see you there!

-Mike Kojima Editor

[Read the rest of this article...]

Posted in: Welcome, Magazine

Nissan 370Z killer bee on dyno

Nissan 370Z 6-Speed Manual Transmission Parts Dyno Test, We Test Stillen's Exhaust System and High Flow Cats With Technosquare's ECU Reflash

by Mike Kojima

For our test mule, we used the Killer Bee, the yellow 370Z that was our May feature car. The Killer Bee is a sports package 6-speed manual transmission 370 that was returned to stock for our evaluation. We will be evaluating more parts on the Killer Bee in the near future so stay tuned! In stock trim the Killer Bee slung out 262 whp at 7000 rpm and 210 lb/ft of torque at 4600 rpm. The VQ37VHR engine exhibited the typical wide flat torque curve and nice linear power curve that the VQ37VHR is becoming renowned for.

[Read the rest of this article...]


Nissan 370Z forums

New! Upgrades Forums Staff Report

In response to our uses requests, has upgraded our forums to help build our community of hard core 370Z lovers.  To set us apart from the other 370Z forums we will strive to keep our 370Z forum a high signal to noise ratio, friendly place for the 370Z enthusiast.   Our highly qualified and experienced staff will work to give the true no BS answers to a lot of the questions 370Z enthusiasts may raise about a myriad of subjects. Unlike the other forums, we have inside technical connections with Nissan, Nissan Motorsports, Nismo and the Nissan Performance aftermarket.

Our upgraded forum now features the same interactive functions as popular forum formats with a much more intuitive, easy to use format. Please feel free join our community and enjoy!

 -The staff

[Read the rest of this article...]

Posted in: Magazine, 370z

2011 Nissan 370Z hybrid sports carNissan to launch hybrid 370Z sports car in 2011? (updated, new info! 5/28/09)  by Mike Kojima

The Nissan 370Z hybrid will be powered by a version of the VQ engine displacing 3.7 liters and an electric motor. A hybrid drive system will use two separate clutches, one between the internal combustion engine and the electric motor with another clutch between the electric motor and the drive wheels. This system will optimize performance and efficiency depending on operating conditions. The new hybrid system will also feature a full plug in EV mode for city type conditions where charging stations are available to maximize economy.

[Read the rest of this article...]



Nissan 370Z VQ37VHR VVEL system

Nissan’s 370Z VQ37VHR Cylinder Head and VVEL Continually Variable Cam Timing Technology(NEW VIDEO)  by Mike Kojima

The unique VVEL system completely controls the intake valves opening and closing events. The VVEL system is exceedingly complicated using two separate rotating shafts driving links that operate eccentrics activating a valve activating reciprocating rocker arm that takes the place of the traditional cam lobe.


[Read the rest of this article...]

  If you are reading this, you might have read about these things on a forum, you might have heard the rumors or you might have experienced some...

[Read the rest of this article...]


Dyno test 370Z Stillen exhaust, Stillen cold air intake, Beck high flow cats, Technosqaure ECU reflashNissan 370Z Auto Tranny Performance Part Dyno Thrash-a-thon!  We Test Stillen's cold air intake, exhaust, Berk high flow cats, Technosquare ECU reflash by Mike Kojima

We strove for accuracy and repeatability in our testing. We did all of our testing during one day. We used standard SAE correction. We thoroughly warmed up the VQ37VHR engine and the drivetrain by driving the car on the dyno at speed for about 10 minutes to warm the engine, transmission and differential oil (this car is equipped with Technosquare’s oil cooler kit) as well. 

[Read the rest of this article...]

by Mike Kojima The issue of Nissan 370Z’s running excessively high oil temperatures has been speculated upon since before the cars launch when ...

[Read the rest of this article...]

Page 1 of 2First   Previous   [1]  2  Next   Last   

Advertisement Nissan Sport Magazine