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.

(what mods next for) more power?

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Old Feb 15, 2004 | 03:33 PM
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more power

I am looking for some more power with out changing the turbo and intercooler. So far I have added the turboxs utec and within the next few weeks i will add the helix up/down pipe combo and the hks hi-power exhaust. Are pulleys a good option. I was thinking the perrin crank pulley. Any help would be great.
Old Feb 15, 2004 | 04:51 PM
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Flywheel instead of pulleys!

Get a lighter (but not too light) flywheel. By getting a 14 lb flywheel you'll make a world of difference in throttle responce and it'll make your car a lot faster.
Old Feb 15, 2004 | 05:21 PM
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IMHO, pulley's and flywheels are small-gain mods for the pain in the **** they are to install. I've read countless threads about misfire CEL's triggered with lightened flywheels and underdrive pulleys.

Intercooler hoses and a GOOD tune on the UTEC will make your car scream.
Old Feb 16, 2004 | 08:41 PM
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Unhappy

ok - i hate to ask - but what does UTEC stand for?
Old Feb 16, 2004 | 08:59 PM
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USER TUNABLE ENGINE COMPUTER=UTEC
Old Feb 16, 2004 | 09:17 PM
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Get a flywheel, the difference is night and day in terms of acceleration. The pulley will give you minimal gains so dont get a pulley.
Old Feb 16, 2004 | 09:22 PM
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Is something like a 6-8 pound flywheel be too light? why 12-14?
Old Feb 16, 2004 | 09:44 PM
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6-8 lb. flywheel will throw CELs all over the place, and it will make it very difficult to launch. I don't think anyone even makes one that light. The fidanza one (the lightest I know of) weight 10lbs.
Old Feb 16, 2004 | 09:53 PM
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Originally posted by hashiriya
Do GC flywheels work on GD WRXs? Ogura makes a great flywheel for the GC.
No, but there are plenty of WRX flywheels available.
Old Feb 17, 2004 | 04:46 PM
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DO NOT GET 8 lb FLYWHEELS!

The stock flywheel is a cast piece that weighs about 24lb, A good aftermarket flywheel should be machined out of chromoly steel and weigh around 14lbs. By getting a flywheel that is lighter than that you are going to cause many problems. An 8 lbs flywheel will do the following for you:

1) Have a negative effect on driveability by making rev-matching more difficult, making starts more difficult, and making smooth shifting a thing of the past. If you revs rise quickly they'll drop quickly too... Forget about your wife ever driving it again...
2) It will throw CELS.
3) There will be more stress ont the various drivetrain and engine components. The massive stock flywheel absorbs certain frequencies and acts as somewhat of a damper. A flywheel thats too light will loose that ability and may allow some resonant vibrations through the rpm range.
4) If a flywheel is too light it may have compromised structural integrity and may crack or fail catastrofically.
5) A flywhee thats too light will be more prown to overheating, clutch slip and warp.

Bottom line, stay away from those "ultra light" flywheels unless you want an "ultra huge" headache.

Get a "lighter" one (14lbs) from a reputable manufacturer and be happy!

Of course, if you are a masachist, that changes things...
Old Feb 17, 2004 | 05:56 PM
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My wrx is a secound car, so i don't mine making to many changes that will make it a non-daily driver. Is the 14lbs fly wheel safe to use, and if so does any one have one that has not had any problems. My other ? is will it effect the top end performance since it is lighter. It seems to me it might effect it in a negative way. I have no idea, just thrown it out there to be discused.



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