 Question..., ....Flywheel |
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 Dec 9, 2003 - 1:50 PM
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 Enthusiast  Joined Oct 22, '03 Currently Offline Reputation: 0 (0%)  |
What exactly does this do?? Why would some one have a "Lightened Flywheel"??
 Any info could help, i hope im in the right forum.-Ivan- |
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Dec 9, 2003 - 1:52 PM
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 Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
less rotational inertia
if the flywheel is lights, the engine can rev up easier, making the engine more efficient and when the engine is more efficient it transmitts the power to the tranny. -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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Dec 9, 2003 - 1:56 PM
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Enthusiast Joined Oct 22, '03 Currently Offline Reputation: 0 (0%) |
Is it possible to install ones' self or do it by shop? I imagine it would cost a pretty penny. Oh, same for underdrive pulleys. What do those do?.....oh, oh, oh, and cam gears. What do those do? or can someone send me a link to see how these work and what they do. Instead of explaining. Sorry for all these questions fellas.
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Dec 9, 2003 - 2:02 PM
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Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
you can install anything yourself if you have the tools and knowledge.
a shop will charge atleast a couple 100 dollars underdrive pully turns the accessories less than the stock crank pulley, kinda does the same thing as the lightened flywheel. less stuff to turn so the power is sent to the tranny. cam gears allow for easier adjustment of the cam timing, toyota F heads have 2 cams but only one cam gear. -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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Dec 9, 2003 - 2:20 PM
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Enthusiast Joined Oct 22, '03 Currently Offline Reputation: 0 (0%) |
Thanx bro, u been a lot of help. Hey u got a cross on ur rear view too? I've always had one in all of my cars. Thanx for the info tho.
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Dec 9, 2003 - 7:57 PM
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Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
that cross is as old as i am. its a family tradition, when a child is born, a cross like mine is bought by the grandparents to go into their car. it was in our safe until i got my car. and i havent touched it since i first put it in. -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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Dec 9, 2003 - 8:03 PM
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Enthusiast Joined Oct 22, '03 Currently Offline Reputation: 0 (0%) |
My old lincoln had a stone cross hanggin, but i got a new one for my celi. I got a cross for my gf too, i dont know why i do this tho. I dont have a reason, i just feel protected.
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Dec 9, 2003 - 9:12 PM
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Enthusiast Joined Jun 24, '03 From MD Currently Offline Reputation: 0 (0%) |
I've also heard that with flywheels, you loose some drivability. Along with revving up quicker, it also will rev down quicker. As I have no first-hand experience, I could be wrong, but I take this to mean that you will feel a sudden holding back when you let go of the gas in a lower gear.
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Dec 10, 2003 - 11:56 AM
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Enthusiast Joined Oct 22, '03 Currently Offline Reputation: 0 (0%) |
My thoughts exactly. Can anyone confirm this??
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Dec 10, 2003 - 12:56 PM
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Enthusiast Joined Jun 2, '03 From Annandale VA Currently Offline Reputation: 0 (0%) |
cant confirm or deny it... but thats kinda a good thing if you use downshifting for slowing? Cant be to a point at which its hard on the car or not so many people would use them.. but once again, any first hand experience?
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Dec 10, 2003 - 1:21 PM
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Enthusiast Joined Nov 4, '02 From Davenport Iowa Currently Offline Reputation: 0 (0%) |
think of your stock flywheel as a fat lady in a shopping cart... and a lightened one as an infant in a shopping cart.
now imagine pushing them up a hill and then back down the other side.. what is gonna happen? it gonna take alot more work to get the fat lady up that hill... and it gonna take longer to slow her down on the other side.. thats kinda how you transmission works... and it is very important that your transmission works as smoothly and quickly and with as little resistance to it as possible. your transmission is the single biggest robber of HP in your car - thats why there is a differnce between crank HP and wheel HP.. the difference (which is always a loss to the transmission) is the amont of power lossed in the transmission.... the less your transmission has to work the less power you loss when its transfered to the ground. so you really dont actually gain HP with things like lightened flywheels and underdrive pulleys...your more just "freeing" up HP that you are lossing. Hope that explains it a little better for you guys.. tried to keep it simple 
--------------------  99 project version 3.0.. hello SEMA 2010 =) |
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Dec 10, 2003 - 4:44 PM
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Enthusiast Joined Oct 22, '03 Currently Offline Reputation: 0 (0%) |
Man, that cleared the fog like crazy. So for stock US spec GT......what would be a good estimate for hp at the wheel?? I'd guess 100, or is it too much robbage?
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Dec 10, 2003 - 11:50 PM
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Enthusiast Joined Apr 14, '03 Currently Offline Reputation: 0 (0%) |
No telling the Hp numbers its all different, mods, engine age, and if the motor was ragged. I have a GT automatic, If I had a manual the first mod I would have done would most likeley be the Flywheel,Clutch, pulley then...intake, exhuast etc etc
By the way I have a unorthodox lightweight underdrive pulley, yea you can fell the difference. Its nothing crazy but its noticeable. |
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Dec 11, 2003 - 12:47 AM
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 Enthusiast Joined Sep 23, '03 From Miami,FL Currently Offline Reputation: 0 (0%) |
im thinking about buying me both underdrive and overdrive crank pulleys...so this really helped ill let you know how it goes when i get it
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Dec 11, 2003 - 8:22 PM
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Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
no point in putting an overdrive pulley, that would take away power -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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Dec 13, 2003 - 12:10 PM
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Enthusiast Joined Nov 4, '02 From Davenport Iowa Currently Offline Reputation: 0 (0%) |
????? I dont understand how you could possible say that? You are replacing a rotating heavy part with a lighter one... the the veryworse you will stay at the same HP and that is unlikely to happen. I say go for them initialdrift55 Its mods like this that will show bigger gains the more you do to your motor, kinda the domino effect.. the more you have done the more gains you see from each indivual part. kinda like a intake by itself isnt gonna do a whole lot but when you add headers and exhaust to that you will see more HP outta the intake than when it was just the intake itself. -------------------- 99 project version 3.0.. hello SEMA 2010 =) |
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Dec 13, 2003 - 12:40 PM
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Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
underdrive pulleys are the smaller and light ones right? from my understanding, and overdrive pulley is bigger that the stock, therefore turning the accessories more, the opposite effect of an underdrive pully. i have only seen one overdrive pulley and it was on a SC'ed crobra mustang. turned all the accessories and the SC 22% more. edit also, how can you have both at the same time. do any manufacturers even make an OVERdrive pulley for the 6gc? This post has been edited by 97sccelica: Dec 13, 2003 - 12:42 PM -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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