If it is a front O2 sensor CEL, your harness may be pinched between the trans and engine.

If it is a rear O2 sensor CEL, the harness probably needs to be re-connected.

 

Your saying that your motor still makes the same power but you decreased the amount of drive-train loss.

You may have had 17% loss from the motor to the wheels and after a lightened flywheel you might have 15-16%.

Cool, never thought about it like that.

I may need to do a flywheel when I put in my Exedy clutch, so I will probably get that light weight BHR and counterweight. I can't wait to feel the difference!

 

You are right it's misfire but when speed up a little the light went a way, but it only does it around 80mph. What to do?

 

^^^ Search

 

I understand the benefits of a lighter flywheel to a point, but doesn't a heavier flywheel carry more energy. For the drag strip I understand there isn't a need to keep the energy spent. On a road course on the the other hand wouldn't a heavier flywheel allow me to store energy when letting the clutch out.

The lighter flywheel on the roadcourse would spin down much faster. A heavier flywheel would store kinetic energy and keep me from loosing as much rpm in shifting as well. Has anyone played with maybe a 20lb flywheel on a road course for improved top speed and running through the gears.

 

It's actually the opposite, the lighter flywheel wastes less power allowing you to run faster through the gears and makes the throttle fairly more responsive. You lose some momentum up top in the higher gears (5\6th) but nothing noticeable when compared to the gains in the lower gears (where the flywheel actually has to work).
It's the same as switching to lighter rims from a certain point of view.

I have bhr's spec flywheel and the rpm drop is neglectable when shifting fast, maybe you have to get used to it while daily driving but it's a matter of minutes

 

I am trying to remove the flywheel nut, but don't know how to stop flywheel from moving without buying the 140 dollar tool from the dealer. Any ideas?

 

Anyone know how to stop the flywheel from spinning in order to take off that huge nut?

 

ridlle me this batman...

is there a problem with the fly wheel being too light? what is the limit if there is one? I read somewhere that 8lb fly wheels were not good. could you explain?

Direct Quote vvv

"The 8 pound racing flywheels that our competitors offer are too light for a Mazda RX-8 .Too hard to drive without slipping the clutch too much"

 

Try air torque wrench, or walmart tire a/c adapter wrench. $30 maybe

 

invest in an air compressor and an impact gun. Once you own an air compressor you never stop using it. Youll eventually own a whole lot of tools to make your life easier. From ratchets, dremels, grinders, impact tools and so on.

 

Some people don't like them being so light because your motor loses inertial force which intertial force gives you more torque (so you lose torque with a lighter flywheel), although you will gain upper rpm HP.

Also, I think one problem is that because you lose the inertial force your rpms drop to rapidly when switching between gears, so you have to shift faster or rev match the rpms.

Those are the problems I have heard of and there may be more.

 

Is that a typo? thats interesting

 

I didn't make it clear enough and it sounded a little confusing so I straightened it up a bit.

 

okay that makes more sense

 

I do have both impact gun and the compressor, but the socket is 1 inch and my impact gun is 1/2 inch. You have a 1 inch gun I can barrow?

 

walmart tire a/c adapter wrench? I have tools I just dont know how to stop it from spinning. Damn flywheel!

 

go to harbor freight, i bet its under 30 bucks. i get all of my tools there just because of the lifetime warranty. If it breaks ill just get a new one.

 

So, After two years and 30k miles of driving the stage 1 Exedy Clutch and Exedy Flywheel combo was holding up pretty well. The only thing that bothers me the most was after a burn out the clutch was sticky from heat it generated and I had hard time engaging from first to second. I had to wait for the clutch to cool down before I can drive the car normal again. I wonder if the stage 2 Exedy with the ceramic disk would be better?

 

nope,

sounds like you slipped the clutch and overheated it. you would do the same with the stage 2. maybe learn how to treat a car..

beers