Tech

 

15

Basic Aerodynamics Part One: What is Aerodynamics?

Basic Aerodynamics: Part One - What is Aerodynamics?

By Mike Kojima

Aerodynamics is the final frontier of tuning for production car tweakers.  In years past many hours were spent messing around with engines, then suspension and brakes.  Finally the tuning of drivetrains was perfected. All was good for a few years.  About the only attention that anyone paid to aerodynamics was to perhaps purchase and install “Aero” kits ranging from hideous “Combat Style” to more tasteful JDM stuff from companies like C-West and Varis.


 

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Posted in: Magazine, Tech
13

Project Honda S2000

Project S2000, Stiffening the Chassis

By Khiem Dinh

As with anything, a strong foundation is the key to success.  For a good handling car, that means a super rigid chassis.  The S2000 is blessed with a very stiff chassis from the factory, but when you chop the top off of any car it will be less stiff compared to a car with a roof.  The S2000 doesn’t have the bad cowl shake that is the tell-tale sign of a not-so-stiff convertible chassis, but there are a few creaks from the soft top roof as the chassis flexes.


 

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12

Pegboard

Project Garage, Part IV: Getting Organized

By Sarah Forst

Finding time to work on your car projects is much easier if your garage is organized and efficient.  Let's see how to find space for everything we need.


 

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09

electrical basics

Electrical Basics and Automotive Grounding Systems

By Vince Illi (AKA Dusty_Duster)

I’m weird.  You see, most car guys don’t like electrical work.  In fact, most loathe it.  (A friend of mine once told me he’d rather replace a head gasket than crimp four wires together.)  But me, I like electrical work.  I would rather rewire an entire dashboard than remove an intake manifold.


 

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07

Ken Block

Block Buster, Inside Ken Block's Monster Gymkhana Killer

By Mike Kojima, photos by Jeff Naeyaert

Not one to bring a knife to a gunfight, Ken Block has the ultimate weapon to bring to the show, his Ford Fiesta rallycross car.  This car is a marvel of technology with a multitude of state of the art systems.  It's something for the car nerd to drool over, drool for a long time. 


 

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03

The Ultimate Guide to Suspension and Handling: Part VI, Adding Negative Camber

By Mike Kojima

In the first 5 parts of this series you learned some basic steps to improving your car’s handling. The first four steps involved the use of basic performance suspension parts available for most cars, the parts that most people with an interest in handling obtain.  Been there, done that?  Then it's time to head for more advanced suspension tuning, involving the alignment, chassis stiffness and suspension geometry.


 

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30
29

Performance Friction’s Killer BMW 135i Brake System

Performance Friction’s Killer BMW 135i Brake System. Track Tested, Street Durable!

By Mike Kojima, photos by Jeff Naeyaert

In a Time Attack car, the brake system is just as critical for a winning car as the engine.  The same is true for a street car but under differing parameters.  A successful race car has to slow down rapidly and repeatedly from high speeds. A street car has to do the same but for 100,000 miles with little maintenance.


 

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24

Ask Sarah Forst

Ask Sarah: Is the Pressure Making You Hot?

By Sarah Forst

I am wondering about gauges and their importance; specifically, oil temperature versus oil pressure. If you had to choose between the two, which one would you pick? And does it matter for a street car versus track car?
Ben

Got a difficult tech question? Email Sarah at asksarah@motoiq.com


 

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23

  wrench tips

Wrench Tips #20: Tape Your Nuts 

by Dave Coleman

If you’ve never had to start a bolt that was out of reach, you’ve probably never owned a wrench. Here’s a simple trick to make those hard-to-reach bolts easier to start...


 

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16
07

KW Suspension Factory Tour

Industry Insider: KW Suspension Factory Tour Part 2

By Mike Kojima, photos by Jeff Naeyaert

In our last installment we left you deep inside KW Suspension's wonder factory.  So far none of us has fallen into the shock fluid, turned purple and round, been sucked into TV's or mauled by squirrels. Now lets rejoin the tour!

To Read Part One Click Here!


 

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31

Project Nissan Sentra Spec-V Part 6: Modifying the Brake System 

Project Nissan Sentra Spec-V Part 6: Modifying the Brake System

By Mike Kojima

When we last left off working on Project Spec-V, we were modding our engine and suspension for maximum power and road holding. Since we have will now have power and cornering capability, we now turn our attention to the other important part of the performance trifecta, the brakes.


 

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31

Project Miatabusa depowering the miata steering rack

Project Miatabusa Part 5 - De-powering the steering rack the right way

by Dave Coleman

That's right; this installment of Project Miatabusa has nothing to do with putting the engine in the car. This may be the only Miatabusa strory where I don't mention the 11,000 rpm redline at least 3 times. Don't get used to it.


 

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30

KW Suspension Factory Tour

Industry Insider: KW Suspension Factory Tour, Part 1

By Mike Kojima, photos by Jeff Naeyaert

We were stoked when we got a call from KW Suspension asking if we would like to visit their facilities in Germany a few months ago.  We felt like how Charlie in "Charlie and the Chocolate Factory must have felt when he found that golden ticket for a tour of a wonderful place.  If you don't know who or what KW is, they are the makers of some of the best suspensions available for both the tuner and the professional racing market.


 

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27

Annie Sam installs JWT SR cams in her SR20DE

Project Racer Part 8: Nissan SR20DE S4 Cams from Jim Wolf Technology

By Annie Sam

So what was the cherry on top of our Nissan SR20DE horsepower upgrades? S4HL Camshafts from Jim Wolf technology. What are cams? First, let’s start off with the term “cams”. Cams are actually the lobes of the entire assembly, which is more formally known as the camshaft. But, for this article, we’ll stick to calling them cams, as that is the casual term for the part. So, let’s give a little introduction on the basics of cams.

Read More Racing Tips From Annie!


 

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26

Project Subaru STI Koyo Radiator

Project Gen 3 Subaru STI: Keeping it Cool with Koyo

By Mike Kojima

While awaiting the development of some ARK parts for our Project 3rd generation STI we decided to prep the cooling system in anticipation of the future installation of power parts.  Turbo cars run hot and when being track driven most have problems staying cool, especially on our Southern California tracks which are mostly located in the desert.  We turned to Koyo Cooling systems for one of their race radiators for our car.


 

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20

Project WRX STI Brake System Upgrade

Project Subaru WRX STi Part 4: Brake System Upgrades

By Mike Kojima

The old engineers joke that “speed doesn’t kill, rapid deceleration does” applies to all vehicles capable of attaining dangerous velocities.  Since we have been concentrating on improving project STi’s acceleration and handling, we have definitely achieved the ability to reach deadly velocity on the track.  In our first foray onto the grounds of Willow Springs raceway we noted that perhaps we were starting to drive beyond the capabilities of the stock brakes due to the higher speeds that we were able to attain on the straights.

To read the rest about Project Subaru WRX STI click here!


 

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20

Ask Sarah Forst

Ask Sarah: I Need More Track Time From My Water Injection System!

By Sarah Forst

I have a 1996 Mazda Miata with a Jackson Racing MP45 supercharger and an ECU controlled Aquamist water/methanol injection system.  The water tank I use is about 3/4 gallon in size, so when I fill it up with straight windshield washer fluid (no additives, just water and methanol) I'm running the tank dry well before my 30 min. track session is complete. 

Got a difficult tech question? Email Sarah at asksarah@motoiq.com


 

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19
Posted in: Tech, Wrench Tips
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