MotoIQ Tech

Project Infiniti G37S: Advan RZII Wheels & Nitto Invo Tires

by Aaron LaBeau

More than many other modifications on a project car, we suffer over wheel and tire choices the most. Mistakes are costly and easy due to sizing choices, but also aesthetically, it's really hard to get an idea of what a wheel will look like on your ride before it's installed. Or, you go down the road someone else has, making a guess on how much you want to trust someone else's judgement.


 

Japanese Cars That Don't Suck

by Mike Kojima

I pissed a lot of people off with my Japanese Cars Suck article a few weeks ago, where I expressed dismay at the boring state of the Japanese car industry. Japan Inc. seems to be producing either the uninspired transportation device or the trying too hard, over the top stuff that seems like something out of the Fast and the Furious or Transformers franchises.


 

Project EP3 Civic Si, Improving the Brakes with Fastbrakes, Stoptech and Willwood

by Mike Kojima

In the last edition of Project EP3 Civic Si, we explained how we went about converting our car from 4 lug to 5 lug hubs. We did this for two reasons: one to take advantage of the larger selection of 4x114.3 bolt circle wheels available on the market and to take advantage of the larger RSX Type-S wheel bearings and axles to stiffen up the bearing system in anticipation of performance fixed caliper brakes and more power from a possible engine swap.


 

Turbo Tech: Calculating Turbocharger Compressor and Turbine Performance Advantage with the New Honeywell Garrett GTX Gen2

by Khiem Dinh

In our Turbo Tech series, we have covered a lot of segments of turbocharger performance. We have looked at various aspects of compressor efficiency and performance, turbocharger mapping, and turbo sizing and matching among other things. This time around, we are going to do some more calculations on the turbine side, calculating pressure ratio and wastegate flow along with estimating power gains from the Honeywell Garrett GTX Gen2 turbos over the first generation GTX. You better get your Excel spreadsheets warmed up.


 

The Blackbird Fabworx Morpheus Miata!

by Mike Kojima

The cars created by Moti Almagor of Blackbird Fabworx have always caught our attention. More for less has always been the theme his creations. The Blackbird Fabworx cars have always eked amazing speed out of stock, very low powered engines. Lightweight, meticulous care in chassis setup, balanced brakes and carefully thought out aerodynamics have had a harmonious interplay in developing incredible speed from very little horsepower.


 

Testing Meguiar's Two Step Headlight Restoration Kit!

by Mike Kojima

Any car that has the newer plastic headlights will experience weathering and yellowing eventually. This is caused by UV light exposure degrading the protective coating on the surface of the lights. Once the coating is eroded, UV light makes quick work of the clear plastic underneath, and the light becomes cloudy and yellow. 


 

How To Do A 5 Lug Conversion the Right Way! Project EP3

by Mike Kojima

As we finally start to mod our much-maligned shop EP3, the car that everyone loves to hate, we came to the realization that the car had pretty big wheel wells. To us, big wheel wells does not mean room for offset, slammed to the ground ride height or dumb camber but room for big grippy tires!


 

Testing Radium Engineering's Advanced Self-Draining Catch Can!

by Mike Kojima

Having proper crankcase ventilation is critical on a performance engine, especially forced induction ones that have more blowby past the rings by nature. The pressure needs to be relieved. Excessive crankcase pressure can blow seals, cause severe smoking from the turbo and affect piston ring seal causing smoking and losing power. 


 

Project F150 EcoBoost: Part One - Opening Things Up With a MagnaFlow Exhaust System

by S. Tate

MotoIQ's latest project car is a (tow) truck! Let's get it introduced and find out what happens when we install a MagnaFlow four inch exhaust system.


 

anti lag rocket beyond the dyno

External Combustion Rocket Anti Lag System + JDM Spec C Impreza STI

By Eric Hsu 

The external combustion anti-lag "rocket" combustor was used on the factory Prodrive built WRC STi Subaru cars to improve the EJ20 engine's inherent mediocre torque and engine response. The rocket is so good that a version of it is still in use today in the 2012 Japanese Super GT GT300 STi BRZ which also uses an EJ20. Last time I wrote a teaser article, but this time we'll take a look at some of the details of the rocket combustor anti-lag system as it applies to my buddy Ben's JDM Impreza STi Spec C street car over in the UK. 


 

Tech Tip: How to Fix a Broken Mazda Door Handle

by David Zipf

It is important that we start off this Tech Tip be noting that it mostly applies to Mazda 3 owners, but also likely applies to 5 and 6 owners as well.  Mazda built the doors of all of these cars in a similar way.  If you own one of these vehicles (specifically the first generation from 2004-2010 or so depending on the model), you WILL have to deal with this problem at one point or another.  At some point your door handle WILL break, and you WILL have to replace it.  This will be a 100% failure rate over time and if you fix it early, it will make your life a bit easier.


 

AEM AQ1 - Installing & Setting Up the AQ1 Data Logger

by Ramitha Edirisinghe

In Article 1 we went over the features of the AQ1. In Article 2 we showed the power behind the data logging. In this final section, we’ll go through our installation of the AQ1 into the Jager Racing car, and some lessons we learned in the process.


 

Project E46 M3: Part 18 – Project M3 vs E90 M3 V8

by Pablo Mazlumian

We were pleased with our S54 3.2-liter in stock form, and the goal was to bring it up to V8 M3 performance. Was a 12% power improvement and 90-lb fat reduction enough? Find out inside! We test them to speed and in the quarter-mile. We also compare them from 30-100 MPH in third gear to compare low- and mid-range torque for you track guys! And why not--we even throw in a Mustang GT 5.0 in there...


 

Performance Car Engines That Suck- The Porsche M96

by Mike Kojima

A few months ago we did an article on 5 performance car engines that suck. This story was highly popular, and we have had many requests for more. So here we go, in more detail, the next performance car engine that sucks, the infamous Porsche M96 engine.


 

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