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Specs Needed: WRX Flywheel vs EA82


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19 replies to this topic

#1 carfreak85

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Posted 01 November 2006 - 08:53 PM

For anyone who has access to these parts or knows the measurements, how many teeth do each of the flywheels have and what are their diameters? Thanks for any help!

#2 Caboobaroo

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Posted 01 November 2006 - 08:58 PM

I can get you the specs for an EA82 flywheel but it'll have to wait until tomorrow. Its like 10 degrees outside right now, I kid you not!

#3 WoodsWagon

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Posted 01 November 2006 - 09:39 PM

I'll get specs for both tomorrow around 6pm

#4 carfreak85

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Posted 01 November 2006 - 10:32 PM

Sweet, thanks guys! I'll be waiting with baited breath, haha.

#5 WoodsWagon

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Posted 01 November 2006 - 11:12 PM

What do you need the specs for?

#6 carfreak85

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Posted 02 November 2006 - 02:48 AM

I want to put a lightweight flywheel in my t-wagon, so I need to know if its even physically possible.

#7 WoodsWagon

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Posted 02 November 2006 - 05:48 PM

it's a different bolt patern than the EA one. Plus a different clutch that won't like to work with the EA tranny.

Why not lighten the EA flywheel?

#8 Numbchux

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Posted 02 November 2006 - 05:58 PM

it's a different bolt patern than the EA one. Plus a different clutch that won't like to work with the EA tranny.

Why not lighten the EA flywheel?


bolt pattern can be modified. EJ clutch discs work with EA trannies.

the challenge will be the pressure plate, and, as mentioned, the diameter. getting a pressure plate that cooperates with the throwout bearing, and getting the teeth on the outside edge to cooperate with the starter....

#9 beataru

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Posted 02 November 2006 - 06:12 PM

bolt pattern can be modified. EJ clutch discs work with EA trannies.

the challenge will be the pressure plate, and, as mentioned, the diameter. getting a pressure plate that cooperates with the throwout bearing, and getting the teeth on the outside edge to cooperate with the starter....

yeah... and unless you have a tranny jack... NOT FUN... ive had to lay on a cold cement floor in washington state for like 6 hours helping my friend put his tranny back in his 300... THERES NO SPACE IN THAT STUPID BOAT OF A CAR!.... anyways.... yeah.. mounting "customizing" the tranny will be cool... but then you have to put it in!!! But im not a naysayer.... i think it would be cool if you pull it off....!! Good luck!

#10 GeneralDisorder

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Posted 02 November 2006 - 06:12 PM

The pressure plate, being hydrualic, will probably be much too strong for the EA81 cable setup. Maybe retro-fit an EJ pedal and hydrualic assembly. Might also have the make a custom fork and release bearing, and I *think* the flywheel for the EJ is considerably thinner so you may need a spacer to move the flywheel back a bit. This is actually one of the reasons it's possible to build the adaptor plates from EJ to EA transmissions - the extra 1/2" of the adaptor plate is compenstated for by the extra thickness of the EA flywheel....

GD

#11 carfreak85

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Posted 03 November 2006 - 01:38 PM

Bump for specs!

#12 beataru

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Posted 03 November 2006 - 07:02 PM

Bump for specs!

Cool so your seriously going to do it??? No matter what :ee :clap:

#13 carfreak85

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Posted 03 November 2006 - 08:07 PM

Cool so your seriously going to do it??? No matter what :ee :clap:


Well if the specs are close enough I will. If not, then I might just design one and have it CNC'd at school for a project or something.

#14 Qman

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Posted 03 November 2006 - 09:06 PM

The bolt pattern can be modified to work between both flywheels.

The offset of the EJ is different. Exact dimensions I do not know.

The XT6 flywheel in stock form will give you a savings of about 5 LBS. The stock EA flywheel can be lightened. A few people have been successful in doing so. I have a lightened EA82 flywheel(-7lbs) in the Brat and have never smoked a clutch in it. I run an XT6 clutch set in it too. Keep in mind that with a lighter flywheel you will lose some of the bottom end and drivability. There won't be as much momentum to keep the low rpm driving smooth.

My suggestion is to stick with EA parts. They will perform to the level you need them.

#15 beataru

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Posted 06 November 2006 - 05:47 PM

you have a 7lb flywheel???? Thats super super light...... how much does the stock ea-82 flywheel weigh?

#16 GeneralDisorder

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Posted 06 November 2006 - 06:24 PM

you have a 7lb flywheel???? Thats super super light...... how much does the stock ea-82 flywheel weigh?


No - it's -7lbs, meaning he had 7 lbs taken off the EA82 flywheel. Which probably made it somwhere around 20 lbs (but that's just a guess).

GD

#17 beataru

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Posted 06 November 2006 - 09:37 PM

oh oh.... ok good.. i was gonna say!
its still 20 lbs??? (Sorry for the post highjack) How does it rev?

#18 DerFahrer

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Posted 06 November 2006 - 10:07 PM

:( You all know that EA82's harmonic balancers are their flywheels and not their crank pullies right?

#19 Qman

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Posted 06 November 2006 - 10:18 PM

:( You all know that EA82's harmonic balancers are their flywheels and not their crank pullies right?


Well, actually, the flywheel is the flywheel and the crank pulley is the crank pulley.

I am sure you meant to say that the EA82 is externally balanced. But, what you neglected to mention is that they have a standard weight and removing material from the flywheel will not hurt anything as they are not matched sets, right?

#20 beataru

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Posted 06 November 2006 - 11:36 PM

Yeah.. the crank pully is the harmonic balancer... just look on the back of it... I know what you ment!




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