Tech

 

04

Ask Sarah is my lube still good? oil shelf life

Ask Sarah: Is My Lube Still Good? (Safe for Work)

By Sarah Forst

Hi Sarah,

I got 8 quarts of Royal Purple 5w-30 and it’s been sitting for at least a year and a half.  Is it still good?    

Thanks -Will C.

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


 

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01

VIDEO: Project Scion tC at Watkins Glen!

Check out Project Scion and her sister car taking 1st and 2nd place at Watkins Glen in World Challenge Touring Car class!  Congratulations guys!


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29

Rahal Letterman ALMS BMW GT

The Ultimate Guide to Suspension and Handling Part IV: Reduce weight transfer

By Mike Kojima

Now that you have reduced body motion and improved steering response, and tuned out under or oversteer to improve the chassis balance, our next step is to reduce weight transfer. Weight transfer is the movement of weight from the inside to the outside wheels of a car under cornering.


 

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27

Modifed Turbo Nissan QR25DE

Extreme Engine Tech: Jim Wolf Technology's Turbo Nissan QR25DE Powerhouse Part 2

By Mike Kojima

When we last left off on our QR25DE project, Jim Wolf Technology was well on the development path for our motor with new rods, pistons and the removal of the balance shafts.  JWT still had a few more tricks up their sleeves to help the motor make more power and to improve its reliability that we will get into in this installment.

Follow our project here!


 

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21

Project Honda S2000 Stoptech big brake upgrade

Project Honda S2000 Part 3- Brakes that don't Break

By Khiem Dinh, Photos by Jeff Naeyaert

Although the Honda S2000 is one of our favorite all time cars, one of the parts we like the least about the car is the brake system.  Although they are perfectly adequate for street duty, the stock brakes do not match the excellent handling ability of the car and are not up to snuff for track day use. S2000s that are tracked heavily, especially on non-staggered setups running 245 or 255 width front tires, are prone to cracking front rotors.  The added traction from the wider front tires means more braking power and therefore more heat the front brakes must dissipate.  This added heat is simply beyond the capacity of the stock brakes’ design, leading to oft cracked rotors.

To see what else we did to project S2000 click here!


 

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19

Performance Friction Brakes

Performance Friction, State of the Art Braking Systems

By Mike Kojima, photos by Jeff Naeyaert

Those in the know are very familiar with the Performance Friction company. Performance Friction brakes are found on most of the paddock at the highest levels of pro racing. IRL, NASCAR and ALMS teams go to Performance Friction as the brand of choice for their brake system and friction material needs.

Performance Friction is also a brand of choice in the tuner market. Many of the top Time Attack cars run Performance Friction pads and brake systems as well as a legion of club racers. Performance Friction pads are also a favorite among the staff at MotoIQ. We are enamored of the performance and consistency of the product.


 

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15

   wrench tips

rubber latheWrench Tips #16: The Homebrew Rubber Lathe

by Dave Coleman

 


 

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14

Project 200SX - Track Ready?

By Wes Dumalski

It's no secret that driving your car at speed on a road course will bring to light all of the car's weaknesses. After sorting the motor and suspension we decided to take Project 200SX to a few track day events to put the car through its paces. While the car has proven dead reliable we certainly found its shortcomings.


 

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12

Air fuel ratio and compression ratio explained

Suck, Squish, Bang, Blow part 3- Compression Ratio and Air Fuel Ratio

By Mike Kojima

In our last edition of our ongoing series on engine tuning and theory, we explained how the 4-stroke cycle works.  Now we are going to break down a couple of common and very important terms that you will hear all the time when discussing engines that you must understand if you are going to successfully tune or select parts for your motor.  This information can also help prevent you from getting ripped off by bogus speed shops.  This can also help prevent you from being steered wrong by SPE's, FFF's and other lameo guru types that inhabit various forums and online resources.

For part one of the series click here!

For part two of this series click here!


 

 

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04

Project Miatabusa Part 2 the engine is in!

Project Miatabusa, Part 2: The Engine Is IN!

By Dave Coleman

Holy crap, this is gonna work!

Wanna see this abomination in person? We're dragging it to the MX-5 Miatafest at Mazda R&D in Irvine, CA this July 17. Cliky the linkey for more info: http://mx5miatafest.com/

 


 

 

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01
29

Rhys Millen's Hyundai Genesis PM580 Pikes Peak Hill climb car

Skyscraper, A Technical Look Inside Rhys Millen's Hyundai Genesis PM580 Pikes Peak Open Class Slate Cleaner

By Mike Kojima, Photos and video by Jeff Naeyaert

We had heard rumors that Rhys Millen was working with Hyundai and Red Bull to build something fantastic, an unlimited class supercar for Pikes Peak.  Since we are on the Formula D Circuit with Rhys, we asked him what was up and he invited us to his shop for a closer look and to go testing with his team as he rolled the car out for the first time at El Toro.

Video inside!


 

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24

Stoptech 350Z Brake Upgrade

Stoptech's Nissan 350Z Bombproof Brake Upgrade

By Mike Kojima

Team Falken Drift Ace Dai Yoshihara is currently developing a Nissan 350Z roadster for competition in Time Attack street classes.  Unfortunately the 350Z roaster did not come with Nissan's excellent performing Brembo track package brakes.  In the cars maiden outing at the Buttonwillow Superlap Battle, the car was hampered with multiple problems with the brake system on the car.  The car had been fitted with an aftermarket prototype performance brake system for the SEMA show.  The car was plagued by cracking rotors, fade, long pedal and the rotors separating from the hat section...


 

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23


Industry Insider: A Look at the Technology Behind RAYS Wheels

by Mike Kojima

It's no secret that the staff of MotoIQ is really into Rays Volk brand of wheels. You will find Volks on nearly all of our racing projects and most of our personal street cars. No, it's not because we get an endless supply of sponsored Volks, we pay for our own. It's not because we are fans of the styling either although we do like it. It's not because we are fashion snobs that want the latest high status wheels on our cars either. In typical MotoIQ fashion, we really value function over form. We like Volks due to their performance.


 

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20

1987 Cosworth F1 GBA 1200+bhp 1.5L V-6 Engine

by Eric Hsu

Take an in depth look at one of the most powerful engines from the 1980's Formula 1 turbo era.


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16

Oil Pump Blueprinting

By Martin Gonzales and Mike Kojima

What is as important to your engine's health as your heart is to your own body?  If you guessed the oil pump then you are absolutely correct!  Like your heart, your oil pump circulates the engine's life blood, oil, around to critical components like your engine's bearings and valvetrain.  These parts like parts of your own body would only last seconds without a continual supply of pressurized oil.


 

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08

Suspension tuning

The Ultimate Guide to Suspension and Handling Part III: Balance the chassis

By Mike Kojima

Now that you have reduced body motion and improved steering response, we can work on the next major area of improvement, improving chassis balance. The goal for most of us is to have a car with neutral balance. Neutral balance, where all four tires slide the same amount, is the fastest way around a corner most of the time. 


 

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03

 wrench tips

stud shelvesWrench Tips #14: Put Your Studs to Work

by Dave Coleman

 

 


 

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Posted in: Tech, Wrench Tips
28

AEM No Weld O2 Sensor Mount

AEM No Weld O2 Sensor Mount

By Mike Kojima

Being able to quickly attach a bung for a wide band 02 sensor is a big pain in the ass.  I know a lot of you have probably tried to help a friend tune their car.  No matter how many times you told them to have an O2 sensor bung welded into their exhaust before they show up at your place, then they arrive and you ask them where it is, they blankly look at you and go "what?"  I know this happens to me all the time.


 

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24

Ryan Gates Modifed Class EVO X

Tire Test (LeMon's Style): Falken Azenis RT615-K

By Dave Coleman

The typical new tire introduction goes like this: The new Pazoosy Jaberwoky XR 745 Ultra R Super Star uses triple-inverted diagonal ply Inconel belts and a directional, asymmetrical tread pattern to optimize wet and dry grip, minimize road noise, increase your fuel economy and magnify your sex appeal. The sad truth is that neither the author, nor the PR team that fed him that line of technospew has any idea what triple-inverted diagonal ply Inconel belts are or what they do.


 

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