Can a oem flywheel be lightened by drilling holes in it with a drill press and/or shaving off material? (I know you can but, is there a balancing issue I should worry about?) I want to ghetto lighten it myself, and don't want to have it balanced, but it seems like a bad idea, opinions?

 

without balancing= BAD idea....
for the prize that a shop will grind off and balance you can get an aftermarket one...

 

if its not balanced, it will most likely explode after enough use. it will also destroy your crank bearings. additionally, it would cause a lot of heat where you drill the hole and that could lead to stress lines (which will aid in it exploding). if it explodes, the pieces will slice through the tranny case, through your firewall, and into your passenger. i would recommend buying a lightened flywheel.

 

omg..haha don't do it man.
Either you, your motor, your transmission or a combination of the 3 will end up like your avatar.

 

yea def a bad idea...just buy a lighter flywheel. u can get a 8.8lbs prolite flywheel from act for like 250 at optauto.com

 

Do you guys think it's ok to use DH racing. Check the following ad. IS that risky. Will it fall apart? Or would you still go with a new flywheel. This service is only $100.

http://www.dh-racing.com/
DHR Lightened Flywheel
Lightened Flywheels Are Available For The New Gen Honda/Acura Models (K20, D17, Ect..) With Core Exchange.
These are stock Honda flywheels lightened and high rpm balanced to precision specs you will notice better acceleration quicker off the line jumps without all the vibration you get from those other flywheels with non-efficient holes drilled through them.
The service is based on the exchange of your flywheel. The lighetning service is $100 alone, add $100 if you want the lightened flywheel outright

 

i dont know dude, ive never heard of them and as was said previously about the consequences of something going wrong its not something to skimp on. but wait and see if anyone else responds with personal experience

 

i think its a bad idea. just find a shop that can lighten and balance it for you if you don't want to get a full aftermarket FW. otherwise, an unbalanced FW could act like an unbalanced tire. but since the FW will rotate at 8k rpm (or whatever you shift at) and there is no good spring and damper (unlike the tire situation) to absorb the funky vibrations, it could be worse and it won't lead to good things to your engine/car.

 

you stoleded me avitar

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dirtyd463 &raquo;</TD></TR><TR><TD CLASS="quote">you stoleded me avitar</TD></TR></TABLE>
My brother kept telling me somone was using my avitar, and seeing since I am the senior member between the two of us, give it up.

I have an act prolite, I was just wondering about it for a junkyard build.
I saw this at http://www.homemadeturbo.com.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by homemadeturbo.com &raquo;</TD></TR><TR><TD CLASS="quote">B16a Flywheel, I took it to get resurfaced at a local machine shop, and asked if they could shave the backside to scrape a few pounds off, he quoted me 75 bucks! I said **** that, so me and Mike G took it to my work and did it ourselves on the Brake Lathe Machine, we got 4lbs off From 18 to 14lbs. Not to bad for 1hr of labor. </TD></TR></TABLE>

 

you suck with all of your posts
and for being here longer than me

just kidding

i have another avi. that i like that i will use

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dirtyd463 &raquo;</TD></TR><TR><TD CLASS="quote">you suck with all of your posts
and for being here longer than me

just kidding

i have another avi. that i like that i will use</TD></TR></TABLE>
Thanks man I didn't actually think you would drop it. Let me know if you ever need help with anything (if I yell at you remind me of the avatar )

 

hey i have a b series fpr that will work
i am wanting to put my b&m back on
pm me

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by keebler65 &raquo;</TD></TR><TR><TD CLASS="quote">if its not balanced, it will most likely explode after enough use. it will also destroy your crank bearings. additionally, it would cause a lot of heat where you drill the hole and that could lead to stress lines (which will aid in it exploding). if it explodes, the pieces will slice through the tranny case, through your firewall, and into your passenger. i would recommend buying a lightened flywheel.</TD></TR></TABLE>

If there is no passenger it will cut the passenger-side seat causing the seat to fly up, bounce off of the ceiling and decapitate you.

 

graphic...

 

i used to work at a machine shop and we lightend flywheels and ive seen plenty of them come apart i would not suggest doing that. most importantly your passanger might not appreciate it when it comes apart. it will happen it might not happen right away but it will happen.

 

most lightened flywheels like ACT or Exedy use chromoly and/or similar compound that is light and strong. stock flywheels are made the way they are becuase of the metal compound used, and when shaved too thin, can cause problems. you'll save more money in the long run just by getting a good 10 or 12 lb f/w from a reputable company like ACT, Exedy, etc.... but remember, if you go too light, you'll loose momentum...