Entries for 'Mike Kojima'

21

Inside the 1000 hp LS, Dai Yoshihara's Formula Drift Powerplant

By Mike Kojima

MotoIQ Garage has taken over the development of Dai Yoshihara's engine program for the last two years from a famous high dollar engine builder. The previous engine had decent power but the reliability was lacking. We were experiencing some sort of engine related issue every few events and halfway through the season, the engine performance would degrade and a fresh engine would need to be installed.  


 

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14

Project R35 GT-R, Really Improving the Aero with Verus Engineering

By Mike Kojima

While its somewhat bulky looks are deceiving, the DBA R35 GT-R is one of the most aerodynamic cars currently in production with a Coefficient of drag of .26.  This puts in in the top 10 of production sedans with low drag coefficients. 


 

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09

Can an Oil Change Make More Power? We Test Idemitsu ZEPRO Eco Medalist and Find Out!

By Mike Kojima

Can you make significant power gains just by changing oil?  In the past, we have proven that switching from a lower grade mineral oil to a premium synthetic oil can be good for a couple or three hp. However, is it possible to make serious gains in power from just an oil change by changing the viscosity of the oil as well as the type? 


 

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06

Vote for Dr Jamie Meyer, SEMA Board of Directors

By Mike Kojima

Dr. Jamie Meyer, GM's most avid MotoIQ supporter is running for SEMAs Board of Directors.  We have known Dr. Jamie, GM's Performance Parts Program Manager since we first opened our doors and he has been instrumental in the smooth running of all of our Chevy based projects. 


 

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29

Ryan Passey's Amazing Mazda Hyper Miata

By Mike Kojima

We have always liked the super-efficient cars of Moti Almagor's Blackbird Fabworx. His cars have a distinct signature; lightweight, elegant, very fast with very little horsepower. Focus is put on maximizing handling, braking and cornering grip in a simple package. Recently at the last Global TIme Attack event at Buttonwillow raceway we got to check out Ryan Passey's, of Goodwin Racing, 1990 Mazda Hyper Miata that was built by Ryan in collaboration with Blackbird Fabworx.


 

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10

Dai Yoshihara's 2018 Formula Drift Rebuild Conclusion

by Mike Kojima

So if you have been following along with our mini-series on what an end of season refresh on a Pro Formula Drift car looks like, you have followed us from stripping the car to a bare chassis, to additional updates, and lastly, the final assembly of the car.


 

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26

Dai Yoshihara's 2018 Formula Drift Rebuild Continued!

by Mike Kojima

So the rush to freshen Dai's car for 2018 by Eimer Engineering continues. In our last story, the chassis had gotten acid dipped and the cage and a few other things had gotten some working over for improved stiffness and increased simplicity. 

Now the car is getting reassembled for a quick shakedown run at Irwindale and some more extensive testing at Willow Springs this week. So let's take a look! There are a lot of right ways to build a car here and anyone can benefit from looking at how our car is put together. 


 

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19

Team America BNR32 GT-R First Update in a Long Time!

by Mike Kojima

So most of you probably thought that the Team America GT-R was dead, long abandoned to the scrap heap or maybe left in a pile somewhere in Australia. Not so! After a humiliating first appearance at the 2014 running of WTAC down under, the car has been under reconstruction.


 

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11

Project V8 E46 M3 Racecar: Adding KW Motorsport Suspension and StopTech Trophy Big Brakes!

by Mike Kojima

When we last left our E46 M3 Project, it was a body in white shell with a cage in it at Pure Performance. Pure started to build the car with an S65 V8 engine from an E92 M3 with a DCT transmission.


 

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04

Project Porsche 991 GT3 RS: Dundon Motorsports Headers and Exhaust System

by Mike Kojima

It's tricky to attempt to improve the engine performance of a supercar, especially when its one that puts out 125 hp per liter like the Porsche GT3 RS does. When it comes to NA power, only the Porsche 918 hypercar and the Ferrari 458 Speciale have more punch per liter. With its screaming 8800 rpm redline, titanium internals and a sky-high 13:1 compression ratio, there isn't a whole lot more that can be done without serious engineering, beyond what most tuners can do.


 

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01

Project Corvette Stingray C7 Z51: Remodeling the Interior

by Mike Kojima

The C7 Corvette's interior is a huge step up from its predecessors. Previous iterations of the venerable Corvette might have been awesome cars, but the interiors were plastic clad and had the look of a cheap rental car. Not so with the C7.


 

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25

Improving Dai Yoshihara's Formula Drift Engine Wear With WPC Treatment!

by Mike Kojima

The world of Pro Drifting is a brutal place for machinery. Since I started my involvement with Pro Drifting 10 years ago, I have been amazed by the appetite for parts a pro car possesses. In all of my engineering career, I have yet to be involved with a motorsport that eats more expensive stuff on a regular basis.


 

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20

We Visit the Nitto King of The Hammers Powered by Optima Batteries! Or, the Idiot's Guide on How Not To Go Off-roading

by Mike Kojima

So we were ecstatic when Nitto Tires and Hellwig Products, makers of cool suspension stuff and supplier for several of MotoIQ's truck project suspension goodies, invited us out to the desert to spectate the Nitto King of The Hammers Powered by Optima Batteries off-road race.  Although we are newbs to the whole off-road truck thing, we know enough to have heard of the event and know that it is an extremely tough test of man and machine combining the rigors of both off-road desert racing and bolder crawling together in one event.  


 

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14

Project Porsche 991 GT3 RS- Improving the Aero with a 911R Rear Diffuser

by Mike Kojima

How do you improve a supercar? It is not easy, but leave it to us to give it a try. We recently got to add a Porsche GT3 RS to our project car fleet. If you don't know much about Porsches, a GT3 RS is a limited production model, part of the current 991 platform family and the last of the great naturally aspirated 911's. 


 

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12

Project DC2 Integra- Getting More Grip With OS Giken and Better Response With Centerforce

by Mike Kojima

With our DC2 Integra rocking a state of the art suspension, it was time to get our drivetrain in order for our anticipated track use and increased power. To get the power to the ground, we needed a limited slip differential, and we selected what we feel is the best FWD limited slip on the market- the OS Giken 1 way differential.


 

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07

Dai Yoshihara's 2018 Formula Drift Rebuild

by Mike Kojima

After 3 years of Formula Drift competition, our team had pretty much developed the BRZ chassis to where we were satisfied with its performance. After some post-season testing to try out a few new ideas we decided that with the development stable, it was time to completely go through the car, repair some minor damage incurred during three seasons of hard use and to rethink the car's layout.


 

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04

Project DBA R35 GT-R: Putting the Suspension All Together With SPL Parts and Whiteline 

by Mike Kojima

Now we are in the home stretch for upgrading our GT-R's underpinnings with our quest to improve its on-track staying power and to reduce its propensity to understeer. In previous editions, we did the suspension basics and upgraded the brakes on the car. Now it was time to finish this part of our project off.


 

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28

Building an FA20 Race Engine for Michele Abbate: Part 2

by Mike Kojima

So when we last left off, we were putting together some awesome parts for Michele's engine and were about to embark on assembling it. In the interest of long-term durability, we added a few tricks to our build over the last one we did for the Stay Crushing car.


 

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14

Project DBA R35 GT-R: Upping Stopping Power with Brembo and Race Technologies

by Mike Kojima

As you can see so far in this series, we are doing a lot of things to fight the weight of the GT-R.  At 3800 pounds, the GT-R wheels throw around a lot of mass with a great deal of speed and grace, but it can only do it for short periods of time before the weight takes its toll, mostly on the brakes and tires.


 

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09

Project DBA R35 GT-R: Getting More Grip with Advan and Toyo!

by Mike Kojima

One of the issues with the R35 GT-R is that it is a big heavy car that gets an amazing amount of performance out of its tires.  The stock tires are a 285/35-20 in the rear and a 255/40-20 in the front. For most cars, this is an impressive amount of rubber but for the 3850 lb GT-R, the car works exceedingly well at first, but the tires quickly fade away.  With some ham-fisted driving, the fading away happens pretty fast.


 

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