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whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL

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Old Nov 5, 2003 | 07:27 PM
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Default whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL

I HAVE A JUN 8.5LBS FLYWHEEL DEBATING WHEATHER TO KEEP IT OR SELL IT
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Old Nov 5, 2003 | 07:33 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (hontegra)

If your motor is stock I would sell it.
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Old Nov 5, 2003 | 07:47 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (hontegra)

covered many times search.
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Old Nov 5, 2003 | 11:08 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (JBLSVTEC)

well your rpms drop more between shifts....i think road racers care about this more. More stress on your rod bearing and valvetrain because rpms move up and down a lot faster. Loss of enertia....which i think is bullshit because it helped my 1/4mile times. Overall it wouldnt hurt with a lightweight flywheel.
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Old Nov 6, 2003 | 01:00 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (hontegra)

I would say keep it

you won't launch as hard but then again you can launch @ higher rpms to compinsate

I heard from people that flywheels make crazy exhuast notes cause the rev so fast
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Old Nov 6, 2003 | 10:54 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (gsr2jdm)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gsr2jdm &raquo;</TD></TR><TR><TD CLASS="quote">I would say keep it

you won't launch as hard but then again you can launch @ higher rpms to compinsate

I heard from people that flywheels make crazy exhuast notes cause the rev so fast</TD></TR></TABLE>

cuz were to fast to furious

i got a spoon 8.8 pound flywheel in my sr20
j/p i got a spoon in my b18c
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Old Nov 7, 2003 | 08:19 AM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (ekhybrd)

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

cuz were to fast to furious

i got a spoon 8.8 pound flywheel in my sr20
j/p i got a spoon in my b18c</TD></TR></TABLE>

hey, nothing wrong about looking good and sounding good while perfroming great

any motor thats built is gonna sound **** hot...

i don't think built motors or flywheels are anything in relation to that movie
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Old Nov 7, 2003 | 10:27 AM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (hontegra)

pros-
bling.
freely revving motor
easier to heel/toe
potentially faster acceleration

cons-
costs a grip
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Old Nov 7, 2003 | 11:01 AM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (owen_the_soyboy)

the act chromoly is just a hair over 200 bux.....
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Old Nov 7, 2003 | 12:13 PM
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I dont mind the CM flywheel I have.
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Old Nov 7, 2003 | 12:55 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (ekhybrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekhybrd &raquo;</TD></TR><TR><TD CLASS="quote">well your rpms drop more between shifts....i think road racers care about this more. More stress on your rod bearing and valvetrain because rpms move up and down a lot faster. Loss of enertia....which i think is bullshit because it helped my 1/4mile times. Overall it wouldnt hurt with a lightweight flywheel.</TD></TR></TABLE>

well said
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Old Nov 7, 2003 | 04:27 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (allmtrwhore2)

speaking of the divil i installed mine last night...fidanza 7.5 lb aluminum f/w........10 lbs lighter than oem.....its in a b20 vtec motor......i niticed the difference right off the bat.........low to mid throttle its noticeable,,,but after the vtec opens....its crazy.......low mph and high gears the car feels more responsive and definitely climbs the rpms alot better...........i say keep it........people say when u rev it to 9k and let off the car shuts off due to the speed at whick rpms go down.......that wasnt the issue with me.....hope i helped out ......
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Old Nov 7, 2003 | 07:37 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (ekhybrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekhybrd &raquo;</TD></TR><TR><TD CLASS="quote">well your rpms drop more between shifts....</TD></TR></TABLE>



There are not enough hammers for as many times as I've seen this. How in the heck does it cause your rpms to drop lower between shifts? Please explain, because the last time I checked a lightweight flywheel did not alter a cars gear ratios .

Yes of course the car revs UP and DOWN faster but that has nothing to do with what rpms the car will be at when you shift. If you take your car up to 40mph in first gear and hit second gear, guess what, you are now traveling 40mph in 2nd gear regardless if the flywheel weighs .0000001oz or 80lbs. When you depress the clutch to shift the disc is no longer contected no matter what flywheel you are using so that point is now gone. What you apparently are thinking is that the revs being able to drop quicker is going to put you out of the power band, which also goes back to the gear ratio statement above and completely false. The only way this would happen is if you were the absolute slowest shifter on the planet. Yeah if you take the car to redline and depress the clutch and wait 2 seconds for the engine to fall back down its not going to help regardless of what flywheel you are using. So what if a lighter flywheel drops revs faster, if you can't shift that fast you shouldn't be driving a car. Heck in everyday driving a lightweight flywheel doesn't drop revs fast enough to notice between shifts and the point is if you are taking that long to shift the car will be slowing down anyway.
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Old Nov 7, 2003 | 08:02 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (ActiveAero)

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



There are not enough hammers for as many times as I've seen this. How in the heck does it cause your rpms to drop lower between shifts? Please explain, because the last time I checked a lightweight flywheel did not alter a cars gear ratios .

Yes of course the car revs UP and DOWN faster but that has nothing to do with what rpms the car will be at when you shift. If you take your car up to 40mph in first gear and hit second gear, guess what, you are now traveling 40mph in 2nd gear regardless if the flywheel weighs .0000001oz or 80lbs. When you depress the clutch to shift the disc is no longer contected no matter what flywheel you are using so that point is now gone. What you apparently are thinking is that the revs being able to drop quicker is going to put you out of the power band, which also goes back to the gear ratio statement above and completely false. The only way this would happen is if you were the absolute slowest shifter on the planet. Yeah if you take the car to redline and depress the clutch and wait 2 seconds for the engine to fall back down its not going to help regardless of what flywheel you are using. So what if a lighter flywheel drops revs faster, if you can't shift that fast you shouldn't be driving a car. Heck in everyday driving a lightweight flywheel doesn't drop revs fast enough to notice between shifts and the point is if you are taking that long to shift the car will be slowing down anyway.</TD></TR></TABLE>

very well said i see your point....my example was "if you were the slowest shifter in the world"
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Old Nov 7, 2003 | 08:06 PM
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i really like the type-r its lighter, balanced, and oem quality can't go wrong there.
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Old Nov 7, 2003 | 08:14 PM
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Default Re: (ambition)

yeah theres a reason honda made there r version flywheel 12.5 pounds instead of 9pounds or lighter.
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Old Nov 8, 2003 | 04:03 AM
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Default Re: (ekhybrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekhybrd &raquo;</TD></TR><TR><TD CLASS="quote">yeah theres a reason honda made there r version flywheel 12.5 pounds instead of 9pounds or lighter.</TD></TR></TABLE> really, what did Honda tell you? I'm curious.....
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Old Nov 8, 2003 | 05:10 AM
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Default Re: (owen_the_soyboy)

To the original poster: If you are considering a lightweight flywheel, please PLEASE do us all a favour, and don't use a stock flywheel, that a machine shop has lightened. Sotck flywheels will develop cracks and stress marks over time, and COULD cause the integrity of the flywheel to decrease, and thereby explode. I have seen it a tonne of times, actually let me see if I have a picture here some where..

Clayton
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Old Nov 8, 2003 | 01:25 PM
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Default Re: (Clayton)

Honda didn't tell me anything smart ***!

Theres a reason honda engineers design there cars the way they are

Of course there is always room for improvement sometimes with a little compromise sometimes with a lot of compromies

I myself have a spoon 8.8 pount flywheel

I havent had any problems and ive had it for more than a year

My motor is still going strong and i still have stock valve train
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Old Nov 8, 2003 | 01:59 PM
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Default Re: (ekhybrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekhybrd &raquo;</TD></TR><TR><TD CLASS="quote">Honda didn't tell me anything smart ***!

Theres a reason honda engineers design there cars the way they are

Of course there is always room for improvement sometimes with a little compromise sometimes with a lot of compromies

I myself have a spoon 8.8 pount flywheel

I havent had any problems and ive had it for more than a year

My motor is still going strong and i still have stock valve train</TD></TR></TABLE>

I'm not trying to bash you or anything, but what does a stock valve train have to do with anything?
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Old Nov 8, 2003 | 06:00 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (ekhybrd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekhybrd &raquo;</TD></TR><TR><TD CLASS="quote">well your rpms drop more between shifts....i think road racers care about this more. More stress on your rod bearing and valvetrain because rpms move up and down a lot faster. Loss of enertia....which i think is bullshit because it helped my 1/4mile times. Overall it wouldnt hurt with a lightweight flywheel.</TD></TR></TABLE>
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Old Nov 8, 2003 | 07:40 PM
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Default Re: whaT R THR PROS AND CONS OF A LIGHTEN FLYWHEEL (ekhybrd)

ok, unless its explained thourughly, a lightned flywheel does NOT stress your valvetrain more. thats like saying a header stresses your valvetrain cuz it adds horsepower. anyways, i have an ACT 12.5 lbs and it fine. i noticed an initial difference with acceration. as far as shifting, unless you are slow as hell and cant revmatch when upshiftg, then its fine. it hasnt changed my normal shifting speed.
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Old Nov 8, 2003 | 08:18 PM
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The reason for heavier flywheels is for emissions, and for driveability. Not everyone is a pro at shifting, and the emissions deal is cause if its too light, there are instances that the fuel system can't keep up with the revs...
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Old Nov 8, 2003 | 08:31 PM
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fuel keep up with revs?? i mean a lightened flywheel helps with acceleration but jeez, it doesnt make you rev THAT quick.... o yea but your ignition timing won tbe able to keep up with the insane revs...
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Old Nov 9, 2003 | 12:40 AM
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Default Re: (JunIntegra)

Yes is does put more stress on your valve train

Example. You driving and your rpms are a 4k or what ever rpm you are at
and you put it into nuetral........the rpms are going to drop significantly faster with a lightweight flywheel vs a stock flywheel.

Just say with a stock flywheel: In one second rpms drop 1000rpm

with a light weight flywheel they might drop 2000rpm in one second. So the valve springs are tightening and contracting at a much faster pace.......increased load.

I have stock valve train with a Spoon 8.8 flywheel and havent had any problems
But im shure my valvetrain isnt going to last as long compared to if i had a stock flywheel
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