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The Moditorium

A high performance automotive resource for parts, how-to's, projects, buyer's guides, technical, events, and more.

Cobb Tuning FA20DIT WRX Flex Fuel Kit - Exactly What To Expect

Tech

Cobb Tuning FA20DIT WRX Flex Fuel Kit - Exactly What To Expect

By: Alan Jackson / January 31st, 2017

It is finally here!

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Does the Subaru WRX and STI Really Need a Catch Can?

Tech / Subaru WRX / WRX STI

Does the Subaru WRX and STI Really Need a Catch Can?

By: Alan Jackson / January 24th, 2017

For those of you that don’t know, a catch can is a device that is installed in the PCV (Positive Crankcase Ventilation) system. It “catches” all the oil vapor that passes from the crankcase back into the intake system where the crankcase is vented too. This oil vapor, as well as other nasty stuff that come out of the crankcase, has a very low octane rating. When the junk from the crankcase makes it way into the cylinders, it can cause detonation and reduce the performance of the engine.

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How to Prepare for a Dyno Tune

Tech

How to Prepare for a Dyno Tune

By: Alan Jackson / January 5th, 2017

Dyno tuning is one of the safest and easiest ways to get more power out of your car. You can bolt on parts all day long, but without making the necessary changes in the ECU, not much will come of it.  In fact, you might be worse off than if you didn't put those parts on.  But strap that car to the rollers for a few hours with an experienced tuner behind the wheel and watch as it suddenly comes alive.

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What Blow Off Valve Should I Run?

Tech

What Blow Off Valve Should I Run?

By: Alan Jackson / September 19th, 2016

If you are a car guy, specifically a car guy with a turbocharged vehicle, and you spend any time at all on the internet, you have either asked the question at some point yourself and/or seen someone ask the question many times. There is no better way to light yourself an E-fire than to ask this question in a public forum. However, there are so many opinions running rampant all over the net, that I don’t really blame people for asking this simple question anymore. There is no definitive answer. So the best way to answer this question is to explain a bit better about the different types of valves so that you can make an informed decision.

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Understanding a Dyno Graph.  Peak Numbers Aren’t the Whole Story…

Tech

Understanding a Dyno Graph.  Peak Numbers Aren’t the Whole Story…

By: Alan Jackson / August 25th, 2016

One of the most common misconceptions about a vehicle is that the car with the higher horsepower will be the faster car. In my early days as an automotive enthusiast (high school), I too, was very guilty of perpetuating this stereotype. I didn’t understand much about cars back then and because of The Fast and the Furious, all I really knew was that I wanted to put blue underglow on my 1995 F150 so I could be cool too. My friends and I would sit around bench racing different cars based on how much horsepower the internet said they make and in some cases, based on which one had the highest number on the speedometer. Needless to say, my 1995 F150 with a top speedo reading of 85mph always lost, but that is neither here nor there.

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When Is A Turbo Too Big?

Tech

When Is A Turbo Too Big?

By: Alan Jackson / August 5th, 2016

Believe it or not, you can have a turbo that is too big… Well, perhaps too big is the wrong way to word it. You can have a big turbo that is not matched properly with your engine or even matched properly with itself (size of hotside vs compressor). While this isn’t really an issue for big v8’s or even v6’s really, the problems from this phenomena will be most evident on small displacement turbo 4 cylinders.

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