Quick Intro

 The engine we have in our car is the 4G64. The 99+ Galant and 3G Eclipse RS, GS share the same Engine. Our engines are the newer Versions of the 4G64 Engines that are found in the 94-98 Galant and some of the 2G Eclipse namely the Non-turbo Eclipse Spyder.

 The difference between the pre 99 ' 4G64's are that they have a distributor cap and the 99+ 4G64 does not, also the pulleys and intake manifold sit facing the opposite side, other then that the engines are the same.

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Where are the Spark Plugs?

The spark plugs are a little tricky to find. Since our car is distibuteless
We have only two normal spark plug wires showing. In reality we do indeed have 4 spark plugs. We have 2 spark plug wires and 2 coil packs.

 The coil packs are right after the first spark plug wire and the third wire. Each coil pack is held down in to place by a bolt on each side of the pack. Usually when changing plugs it is a good idea to do one plug at a time, in this case it is easier to pull out all 4 plugs at the same time. Having 2 wires and two coil packs eliminates the problem of getting the wires mixed up easily. Here is a picture of the Engine.

3g-4cyl-2.jpg (78454 bytes)

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Throttle Body Adjustment

The throttle body adjustment is a great bang for the buck mod because its FREE!!! If your car is feeling a little lag in the throttle response this is a sure fire fix. This won't fix the whole; "wish my car was a m/t instead of a a/t" problem but it will help in that all important reaction off the line problem we have all had in our trusty automatic tranny's.

  Ok, back around the fire wall is were the TB (throttle body) sits. On the TB is the Throttle cable. Follow the bare wire till it meets plastic and a metal piece with a nut on either side. It almost looks and feels like this is were you are gonna do the tightening but your not. Ok, a little further down like an inch or 2 is a plate that sticks out towards the fire wall. This plate has two bolts and some type of flat ground ribbon on it attached to the fire wall. Unloosen these two bolts enough to slide that plate back and forth. Pull the plate back enough without idling to high, I did mine all the way without having to worry about high Idle. If the idle is high lower it back down. You want the cable firm but not to tight. , then re-tighten the Bolts and VIOLA!!! You are Finished! 

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Shifting

First off, I cannot recommend this for anyone else and Shifting manually in your automatic transmission is at your own risk. Ok, so this is how I do it. I start off in Low, then slam the pedal at around 6k, I up shift and then for a split second I release the gas pedal and slam it back down for a hard more aggressive shift. I do this process up to 3rd, by then its all over the race is usually won by then. Slide it up into drive and continue to drive like normal. Again, this I only do when I feel like I might lose the race, normally I just beat them straight up A/T. Remember, you attempt this at your own risk.

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Painted Valve Cover

This is easier then it sounds. Taking off the Valve cover is no big deal.
Simply unscrew the bolts all around the cover and disconnect anything attached to the cover and Presto! The cover comes off! I used the same seal for the cover its rubber and was still attached to the top of the valve cover. I took my cover off while the engine was warm. 

 Ok, the cover is off. Clean the cover, clean it well. You can sand it lightly with some fine sand paper. I bought some-Red DH1608, Its the Dupli-Color High Heat w/ceramic, its dyno heat tested. I bought this a AutoZone. Its 1200 deg. , I forget the price.

 Got the paint, ready to paint and follow the directions on the back of the can. After you are finished pop that valve cover on to the engine and you are done.

 

 

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Injen Cold Air Intakes

Regular Injen Cold Air Intake

The regular Injen CAI is a good intake is the 2nd Gen Injen CAI. Injen offer this CAI as alternate to the better designed Race Division CAI. The quality is good but still not as good as the Race Division. The MAS and Filter sit Right in back of the Fog light. The Intake was dyno'd at a 9hp gain. I haven't heard any figures on the Race Division but I assume they are the
 same. The problems you will run into on the regular Injen intake is that the pipe will rub on the Battery tie down bolt and rub a hole in the side. The fix is to
slip a piece of silicone hose around the long bolt. Remember this is when using the 3G Eclipse I-4 CAI. I think they make a I-4 Galant Short Ram intake, but
I don't see any reason why you can't use the CAI ext.

Injen Race Division Cold Air Intake
The Injen Race Division Cold Air Intake is the pinnacle of Injen's CAI's. The design is beautiful, the MAS sits on top where it should safely away from the weather and street elements. Everything  fits perfectly, It evens comes with the splash guard. The filter still sits in back of the fog light to suck in the best of the Cold Air far away from the engine but still protected by the splash guard. Installation of the intake is a breeze and even though the intake was designed for the 3G I-4 Eclipse it fits perfect, no rubbing no modifications no nothing. Installation should take no more then 30 minutes. All fittings are nice and snug. The horse power gains should be the same as the regular Injen CAI. The instruction are good and the kit will include everything you need for installation!

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Ram Air Mod

This is a good way to get air rammed into your CAI.
I have not perfected what I want to do yet but the Idea
is their. Now this will only work for 2002 models because we can
remove the actual side piece of the grill. Now you can do one of two things

1. Remove Grill Piece and cut the slats out so air can flow thru them and ram into your CAI.

2.Remove the grill all together, but it will look a little bare.

I opted for the remove the Grill Piece all together look, although I did cut the slats out of the little black grill piece. I just feel it works better with the grill off completly.

This is a picture of the Grill Missing.

 

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This site was last updated 06/08/03