12lb vs. 8lb flywheel
 

Just a thought. I've just bought a 12lb flywheel, thinking that i don't want an ultra light 8lb one, as it will be easier in traffic/city driving. I want my acceleration to improve, without impacting driveability. Does 12lb flywheel make sense over an OEM one? Anyone else got one? Any thoughts?

Re: 12lb vs. 8lb flywheel (caranjo)
 

A 12lb fly wheel is a good compromise between quicker acceleration and driveability especially if you drive in a lot of traffic. If you're driving a larger displacement engine like an H22, using a lighter flywheel would be less noticeable because of the engine's better torque production.

Re: 12lb vs. 8lb flywheel (00Red_SiR)
 

Well that sounds good. I have the torque-less b16a2, so anything that can compensate for the missing torque will be great! Can't wait to fit it.

Re: 12lb vs. 8lb flywheel (caranjo)
 

Just to be clear - a heavier flywheel won't "compensate for missing torque" . . . . All it will do is possess more inertia - and this makes launching & slipping the clutch simpler.

From everything I've read, once you get used to a racing weight flywheel (~8 lbs.), you won't have any problems - even daily driving in stop & go traffic. The only issue would be if anyone else ever drives your car - there'd be a steep learning curve for them until they figured it out as well.

I'm personally getting a 12 lb. one since I do want improved throttle response - but I also want my mom or brother or sister or whoever to be able to drive my car without any initial problems.

Re: 12lb vs. 8lb flywheel (Daemione)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Daemione &raquo;</TD></TR><TR><TD CLASS="quote">

From everything I've read, once you get used to a racing weight flywheel (~8 lbs.), you won't have any problems - even daily driving in stop & go traffic.
</TD></TR></TABLE>
I agree 100%
I went from a stock flywheel to a 8.8lb. There was about a week learning curve, but after that, i won't go back to a heavier one.

The car tends to stall alot easier with a light weight flywheel because of the lack of intertia...so starting on a hill is a bitch. You have to rev it up higher than usual, give it more throttle than usual and release the clutch faster than usual. Once you get that down, it's all gravy https://honda-tech.com/forums/images...s/emsmilep.gif

Re: 12lb vs. 8lb flywheel (Eclypz)
 

i have an 8Lb flywheel on my H22 ... I love it... wish i could get a lighter one https://honda-tech.com/forums/images...s/emsmilep.gif

Re: 12lb vs. 8lb flywheel (Eclypz)
 

8.7lb club here.

Re: 12lb vs. 8lb flywheel (chameleon)
 

8-poundaz fo life. ;-)

Stop and go traffic isn't too bad, and if u mess up pulling out, no big deal, u might make the guy behind u think: "WTF?" but he's probably driving an automatic anyways.

Ratliff

Re: 12lb vs. 8lb flywheel (caranjo)
 

Personally, I wouldn't be able to justify the expense or effort (definitely not a 1/2 hour job) of installing a new flywheel if it was 12 lbs. I would select something significantly lighter, but I suppose it's partially a matter of personal preference as well.

Re: 12lb vs. 8lb flywheel (Padawan)
 

7.5 lb fidanza here. I love it. Car almost revs like a motorcycle once VTEC hits. But I will never let anyone else drive it now as they will stall out everytime. I die in traffic everyday and it is not a problem, you really get used to it.

Re: 12lb vs. 8lb flywheel (srob7001)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by srob7001 &raquo;</TD></TR><TR><TD CLASS="quote">7.5 lb fidanza here. I love it. Car almost revs like a motorcycle once VTEC hits. But I will never let anyone else drive it now as they will stall out everytime. I die in traffic everyday and it is not a problem, you really get used to it.</TD></TR></TABLE>

exactly how I feel. I have the same flywheel

Re: 12lb vs. 8lb flywheel (Padawan)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">Personally, I wouldn't be able to justify the expense or effort (definitely not a 1/2 hour job) </TD></TR></TABLE>

I am about to tune my b16a with ctr cams and hondata s100. Do i have to install the flywheel at the time of tuning or can it be just swapped in and out with no problems after tuning?

Re: 12lb vs. 8lb flywheel (caranjo)
 

8lbs Defcon-Racing flywheel here and love it https://honda-tech.com/forums/images/smilies/emthup.gif

7.5lb fidanza here, plus a ctr crank pulley, which totals to over 15lbs off the rotating mass of the engine. maybe its just me, but it only took about 5 minutes to get used to pulling away from a stop with it. IMO im glad i didnt get anything heavier, as the difference from stock would have been negligible, especially if i took everything out just for the flywheel. in fact the only reason i put the flywheel on was because i had the engine out for internals anyway.

Re: 12lb vs. 8lb flywheel (1999all_motoR_teg)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1999all_motoR_teg &raquo;</TD></TR><TR><TD CLASS="quote">8lbs Defcon-Racing flywheel here and love it https://honda-tech.com/forums/images/smilies/emthup.gif </TD></TR></TABLE>

i have the same one, well...Ultimate Racing makes them, and Defcon sells them under there name. i love mine too, but, the ring gear is off a bit and it sometimes takes a few cranks to get it started. have you ever weighed your flywheel? i was told mine was 8lbs, but when i weighed it, it turned out to be 6.87lbs. its light as hell, but, was worth every penny.

Re: 12lb vs. 8lb flywheel (caranjo)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by caranjo &raquo;</TD></TR><TR><TD CLASS="quote">

I am about to tune my b16a with ctr cams and hondata s100. Do i have to install the flywheel at the time of tuning or can it be just swapped in and out with no problems after tuning? </TD></TR></TABLE>

You can tune your car without it and bolt it on after without problem. Unless the part affects the airflow or fuel flow in some way, it will not affect the tuning that was done.

ive seen problems with the carnot being ableto catch idel after a flywheel install...tunning fixed it

Re: 12lb vs. 8lb flywheel (Daemione)
 

is there any break in procedures for flywheels, like clutches? or do you just slap the bitch in and beat on it?

Re: 12lb vs. 8lb flywheel (chameleon)
 

comptech 6.75lb. flywheel is the best ever. i've had it on 2 motors in the past, but i sold it with my old civic. https://honda-tech.com/forums/images/smilies/emsad.gif
gotta find another one for this motor i'm building.
imo, the lighter a flywheel is, the better.

Re: 12lb vs. 8lb flywheel (Mike K)
 

Exedy Flywheel, 8.9 lbs.

Re: 12lb vs. 8lb flywheel (hybrid_vtec)
 

i chose to go with the act prolite flywheel, i believe its about 8.8 lbs??? i am also using the exedy 3 puck disc with heavy duty pressure plate. it took a few hours to get used to, stalled on my gf's street got made fun of by my buddy...its a great upograde... if i coulda gone lighter i wouldve... but i got a dope deal on it!!! after 6k it revs extremely quick and acellerates very quick too!! the lighter the better in my book!! https://honda-tech.com/forums/images/smilies/emthup.gif ...im sure there is a limit to how light though. but im sure someone else with more knowledge than i could explain that... https://honda-tech.com/forums/images/smilies/emthup.gif


joe

Re: 12lb vs. 8lb flywheel (caranjo)
 

It would be in your best interests to tune after installing the flywheel. Your bottom end will lose a bit of torque and power with the lighter flywheel, and your top end will obviously gain a bit of power. Tuning it before and adding the flywheel won't be a problem though, some fine tuning/tweaking should be done though.

--Also, I personally prefer something like an 11 lb flywheel for a street car- the increased driveability is worth it to me, but it's all in personal preference.

Re: 12lb vs. 8lb flywheel (HobbesGSR)
 

in response to hobbesgsr...
nah, i've dyno'd before and after. got like 3hp gain everywhere. from 2500-8500. from a HP/TQ standpoint, it's the same as lightweight pulleys. but from a driver standpoint, it FEELS way faster.
i don't think there's an ounce of truth in what you said.

Re: 12lb vs. 8lb flywheel (HobbesGSR)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HobbesGSR &raquo;</TD></TR><TR><TD CLASS="quote">It would be in your best interests to tune after installing the flywheel. Your bottom end will lose a bit of torque and power with the lighter flywheel, and your top end will obviously gain a bit of power. Tuning it before and adding the flywheel won't be a problem though, some fine tuning/tweaking should be done though.

--Also, I personally prefer something like an 11 lb flywheel for a street car- the increased driveability is worth it to me, but it's all in personal preference.</TD></TR></TABLE>

why would you need to tune just adding a flywheel? its only reducing rotating mass.

Re: 12lb vs. 8lb flywheel (spooncivic1)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spooncivic1 &raquo;</TD></TR><TR><TD CLASS="quote">

why would you need to tune just adding a flywheel? its only reducing rotating mass.</TD></TR></TABLE>

Exactly, you only need to tune if you alter the engine volumetric effeciency or fuel supply.