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By Annie Sam
Modificum Racerium – a chronically debilitating disease which is characterized by the irrationally obsessive addiction to car modification and speed. “More!” we keep chanting, as we illogically pass up hot meals for cup o noodle in order to quell this addiction by buying more upgrades for our soon to be NASA PTD car.
Read More Racing Tips From Annie!
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By Mike Kojima
Since the long stroke QR25DE does not like high rpm, we have chosen to limit its maximum revs to 7000 rpm and make power by adding turbo boost. Jim Wolf Technology designed our turbo system to produce power over the widest possible range of RPM rather than peak power. The JWT system was also designed for simplicity, lightness and reliability over maximum power.
Follow our project here!
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By Mike Kojima
We have always been fans of the GST Motorsports 1996 GC8 Subaru Impreza L. The car with driver Jeff Westphal is the current reigning Redline Time Attack Super Modified AWD Champion. The GST car has been around forever and has been in a continuous state of development since 2006.
IN CASE YOU MISSED IT... Video: GST Motosports Record Breaking Run at Cal Speedway with Data!
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By Mike Kojima
When hanging out at Costa Gialamas' shop, Gialamas Technical Innovations, we picked up on some really good ideas Costa uses when fabricating. Costa has many years of fabricating experience in both the Motosports and Aerospace worlds. This is not a story on how to build an exhaust, instead it's about some tricks we have seen Costa use that can help speed your fabrication. Check these few simple tips out!
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MotoIQ Staff Report
Now it's time for the moment all of you motorsports fans and racers have been waiting for, the official launch of the MotoIQ Pacific Tuner Car Championship Web site! All the information about the series is to be found on the site from the car rules, to competition license requirements and applications, event registration, spectator ticket sales and the 2011 schedule.
More Inside!
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By Mike Kojima
With the specter of high prices once again looming over our heads, we bring you yet another fuel sipping project; Project Aprilia RS50. You might wonder what an RS50 is; it is really a very unusual machine. It is a street legal, two stroke 50cc GP replica bike.
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By Jeff Naeyaert
It was bound to happen sooner or later, while riding Project Ducati Hypermotard; we had the unfortunate opportunity to crash the bike. Although it was a very minor low side while going slow, our bike got off really lightly thanks to some crash protection we had the foresight to install and what got damaged allowed us to put a few more cool new bits on the bike.
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Project Sipster Part 6 - Faster Sipster
by Dave Coleman
 If you want a Diesel to make more power, you just have to squirt in more fuel. If you've never tuned an engine before, this is the most obvious thing in the world. But if you're used to tuning gas engines, this is the most preposterously naive and wrong-headed thing we've said in at least a week. Diesels, it seems, are a bit different.
UPDATE! I just found the dyno chart!
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By Mike Kojima
Ignition Timing is expressed as the number of degrees of crankshaft rotation in advance of Top Dead Center or TDC, when the sparkplug is fired. This kicks off the explosion of air and gasoline that pushes the piston down to drive the crank. Since even explosions take a few milliseconds to develop, the engine’s ECU usually commands the sparkplug to fire a few degrees of crank rotation before TDC.
For more engine basics click here!
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By Sarah Forst
Hi Sarah,
I'm debating going carbs or ITB's with EFI. What is the advantage to using carbs over EFI? How do ITB's perform over a single TB?
J.T.
Got a difficult tech question? Email Sarah at asksarah@motoiq.com
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Turbo: Once Round the Block
by Eric Hsu
Two videos after the jump of the development process of the 1986 Cosworth GBA 1.5L V6 engine. The video also covers the development of the ECU and car, but what interested me more was the 4 cylinder Cosworth BD that was built as a tester on the engine dyno and its failure mode. This was before the time of CAD, FEA, CFD, and all that computer mumbo jumbo. 25 years ago it was all about your past experience and empirical testing which is a lot closer to how things are done in most parts of the tuning parts market today.
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By Mike Kojima
When our friends at K&N heard that we had gotten an IS-F, they got excited and insisted that we try out their Typhoon high flow air intake system as they claimed that they had gotten excellent results in their testing.
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MotoIQ Staff Report
Afterhours Automotive is one of the shops MotoIQ uses when we have a special project. Master fabricator Brian Kono, owner of Afterhours is a very capable guy, Brian has built race cars from a pile of tubes and can do anything from paint to custom one off composite parts. We frequently visit his shop and during one of our last visits we spotted a project so cool, we just had to share it with our readers!
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By Mike Kojima
Not all of the cars in the MotoIQ stable are cutting edge performance machines. Sometimes we do have to have cars that are practical. Our current office car is a 2004 Infiniti G35 Sedan. The G35 is an excellent car for daily driving, it gets reasonable mileage in the low 20 mpg range and has 4 doors and plenty of inside room for taking the staff to lunch or meetings. The automatic transmission for dealing with bumper to bumper daily commuter traffic makes jumping into the G35 to go somewhere a no hassle proposition.
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Project Miatabusa Part 7 - Mounting the Gauges
by Dave Coleman
Last time we looked at cramming the Hayabusa's instrument cluster into the Miata housing, it proved to be a shockingly good fit. There was a very large unresolved issue of how to actually secure the Hayabusa cluster's circuit board, though. Here's how that project was finished:
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