Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Call us believers (alky injection)!

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Old Oct 28, 2005 | 05:38 PM
  #1  
gruppe-s's Avatar
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From: Hayward, CA
Call us believers (alky injection)!

Hey all,

So for quite awhile now, the rumors and facts about alcohol injection have swirled around. Is it safe? Is it one of the best bang for the buck power adders on the market? Are the gains real and consistent? We wanted to find out what all the fuss was about so we tested one of SMC's alky injection kits on Mike's 2.35L GT35R shop car. There are no completely new, earth moving, or mind blowing results or findings here but we were suprisingly impressed with the reliable gains shown by the kit.

A little background first:

Alcohol works by doing the following 2 important things:

1) It lowers the temperature of the intake charge thus creating a denser (and greater) air mass.

2) It raises the effective octane of your fuel which works towards avoiding detonation (the sworn enemy of engines).

These two factors are particularly beneficial on turbocharged cars because the effectiveness of turbocharging is dependent on having a dense and cool intake charge while also avoiding detonation. Boosted engines are particularly succeptable to detonation because they can see such high pressures and temperatures. By increasing the effective octane of your fuel, it allows you to run higher boost and also add more timing advance. As an added bonus, it also cleans carbon deposits in your engine.


Enough of that, here are the results:


+43.8 WHP and + 28 WTQ

Essentailly, alky injection appears to be like instant racegas for a whole lot cheaper. It runs on denatured alcohol which can be purchased for under $10 a gallon at places like Home Depot (the kit comes with a 1 gallon tank). If used correctly, it is safe, cheap, and effective way to gain reliable power. In fact, alcohol injection could be arguably the best bang for the buck power adding modification on the market. SMC is currently working on a failsafe that will be implented on their new kits. This will insure that when you're running out of alcohol, your car will revert to normal boost. We are very excited to be offering these kits for sale to the general public and look foward to testing them on many other applications. For more info, please check out our post in the Vendor thread.

Thanks,

Geoff
Old Oct 31, 2005 | 07:16 PM
  #2  
Steven@Coach's Avatar
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Joined: Jun 2004
Posts: 966
From: Subabrew Crew
Car Info: 2011 WRX Hatchie
318 whp base? Something wrong with the motor?

Anyways, any idea what the aveage alcohol usage would be? Driving about 250 miles/week.
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