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Old 14-01-2009, 10:46 AM   #1
blue_focus
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Default Fly wheel

Hey ever1 not sure if this has been posted before bit I was thinkin about gettin a lightened fly wheel for my focus. Just want to no if it will make a differenc or not. My main goal is to run a be 1/4 mile. Thanks.

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Old 14-01-2009, 10:58 AM   #2
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Lightened Flywheel should make the engine rev up quicker due to the lower amount of weight that it has to spin around, you should get a new clutch that suits the application desired. Given it will rev quicker should in affect mean that acceleration would be improved marginally. If you haven't prob run your car down the 1/4 mile and see how good you can get with its current combination and then you could appreciate the mods you do to your car to make it faster that little bit more.
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Old 14-01-2009, 11:20 AM   #3
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There are some disadvantages to lighter flywheel. Mostly loss of torque low down.
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Old 14-01-2009, 01:46 PM   #4
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For drag racing it will make very little difference on a low-powered car like the Focus, maybe 0.2 of a second, learning to drive it will yeild more :P For track racing, it's definitly worth having, any rotating mass you can eliminate is great. It's a common misconception that you lose torque, it is easier to stall the car, but this is due to less stored energy, the power and torque output of the engine does not change.

The flywheel is simply a device for storing energy, but it takes energy to spin it, so apply the weight to your application. A tune will give you far more, and cost far less...

-RM.
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Old 14-01-2009, 04:47 PM   #5
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I've always assumed a lightened flywheel means quicker to get to higher rpms when you push throttle, but will lose momentum quicker when you take foot off the throttle (ie not as much stored energy)

A very clumsy way to describe it....but basically right??
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Old 14-01-2009, 04:53 PM   #6
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I found it improved control in the rally car. And a low mass clutch which is a good thing to do at the same time made gear shifts much faster...

I say go for it if you have the budget.
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Old 14-01-2009, 04:53 PM   #7
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But less mass in the lower RPMs means there is more force acting against the rotation of the engine in the compression stroke.
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Old 14-01-2009, 05:00 PM   #8
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I'd still go for it, if your in the high end RPMs a lot. Seeing as the Focus idles on the freeway at 3100 RPMs then you shouldn't find it a big inconvenience.
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Old 14-01-2009, 07:24 PM   #9
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Its also a good time to drop in a close ratio dog set in the box. Makes for dead easy lightning fast gear changes,,,

But on apprentice wages maybe not..
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Old 15-01-2009, 12:07 AM   #10
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Quote:
Originally Posted by melbzetec
I've always assumed a lightened flywheel means quicker to get to higher rpms when you push throttle, but will lose momentum quicker when you take foot off the throttle (ie not as much stored energy)

A very clumsy way to describe it....but basically right??
Pretty much right though mate, it takes torque to spin up the flywheel, and it releases torque when it's spinning down. The lighter the better for a racecar, for a street car, you want a compromise, something that still allows an easy takeoff, but is light enough to allow a good spin up.

I stand by my point about the tune, a good flywheel will cost you $500++++ plus fitting, where a tune will be $3-400, release *real* power, and improve the throttle response (the real advantage of a light flywheel) immeasurably.

-RM

P.S. *if i missslept...blame the scotch*

P.P.S *or if imy advice is complete bollocks*
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07 LT CL, CAI, timing, XR5 springs, LS Zetec wheels
16.045...0.05 of a second! I wanted a 15sec pass!

93 GSR/Evo3...too much to mention, 12.2sec 1/4, FOR SALE!

*Maybe we don't try putting holes in things that sink, yeah?*
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Old 15-01-2009, 12:33 AM   #11
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Quote:
Originally Posted by Mullett
Pretty much right though mate, it takes torque to spin up the flywheel, and it releases torque when it's spinning down. The lighter the better for a racecar, for a street car, you want a compromise, something that still allows an easy takeoff, but is light enough to allow a good spin up.

I stand by my point about the tune, a good flywheel will cost you $500++++ plus fitting, where a tune will be $3-400, release *real* power, and improve the throttle response (the real advantage of a light flywheel) immeasurably.

-RM

P.S. *if i missslept...blame the scotch*

P.P.S *or if imy advice is complete bollocks*
Get both the tune and f/w
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Old 15-01-2009, 09:02 AM   #12
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One of the better kits going around. matched clutch and flywheel. Exedy. (US Dollars)

https://ssl.perfora.net/www.massives...dex.shopscript
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Old 15-01-2009, 10:04 AM   #13
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Get this!!!! :
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Old 16-01-2009, 01:13 AM   #14
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If you have one million horsepowers :P

On the other hand, I can get trade price on Excedy clutch kits, if you're really keen on one I can try and source a price for you.

-RM.
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07 LT CL, CAI, timing, XR5 springs, LS Zetec wheels
16.045...0.05 of a second! I wanted a 15sec pass!

93 GSR/Evo3...too much to mention, 12.2sec 1/4, FOR SALE!

*Maybe we don't try putting holes in things that sink, yeah?*
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Old 16-01-2009, 05:50 AM   #15
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mmmm link didn't go to the right place before.


Anyway, i was trying to link to this at Massive Speed Systems


Exedy Hyper Single System

Order no.: MCHW'Exedy Focus Clutch
Our price: $ 1,157.19

Hands down the finest clutch system available for the Focus.
Includes a high strength Chome Moly flywheel, 6 Puck Sprung Disc, lightweight Aluminum Pressure Plate, and install tool. Its the only truely different clutch/flywheel/pressure plate setup out there. It uses a forged aluminum pressure plate cover thats acctually stiffer than the stamped steel cover every other factory and performance clutch is based on. That allows a higher lever ratio, the pedal effort is still superb, and there is no clamp load deflection. Not to mention lighter weight.
Since the pressure plate is so much lighter, Exedy was able to incorporate a 1 piece Chrome Moly flywheel that is stronger than either a stock or aftermarket aluminum piece.
The disc features a sprung hub so it can still retain a fairly smooth engagement. This also reduces harmful the shock to the drivetrain. That said, this setup has a very different feel than anything else we have ever tried, and will take a little "getting used to". We have found that this is fairly easy to do.
This setup can handle more power than any other currently available Focus clutch. Numbers show approximately 400% more holding capacity than stock.

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Old 16-01-2009, 10:31 AM   #16
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Reminds me of a notice on the wall in one of the rally davelopment teams.

To go fast costs money.

How fast do you want to spend?


How true....
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Old 16-01-2009, 02:42 PM   #17
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Quote: "To go fast costs money. How fast do you want to spend?"

Yeah, I've had mates who've won their respective Classes in Production Cars and that's pretty much how it is in the industry. Oh, I noticed the 2 Britek Fiesta's are still for sale/lease.
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Old 19-01-2009, 01:02 PM   #18
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Thanks for the help. It really doesnt sound like it worth spending the extra money for the little extra performance. Will have to keep searching for more budget performance mods.
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Old 19-01-2009, 01:12 PM   #19
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Quote:
Originally Posted by More revs
To go fast costs money.

How fast do you want to spend?
Yep too true... I've spent more than 12k on mods for my focus and most of that was just the brakes, the rest is all cosmetic.
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Old 19-01-2009, 11:19 PM   #20
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Quote:
Originally Posted by blue_focus
Thanks for the help. It really doesnt sound like it worth spending the extra money for the little extra performance. Will have to keep searching for more budget performance mods.

Intake

(cat back) Exhaust

Tune

Then a turbo if you want to go any faster

-RM.

Talking of which, I might get a round of hard-pipe intake pipes made up, I'll post a thread about it and get an idea of how many I can get rid of when i get back home (about a month away :( )

All the ones from online seem crappy/overpriced, I doubt it'd cost more than $50-100 for the pipe and silicon connectors.
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07 LT CL, CAI, timing, XR5 springs, LS Zetec wheels
16.045...0.05 of a second! I wanted a 15sec pass!

93 GSR/Evo3...too much to mention, 12.2sec 1/4, FOR SALE!

*Maybe we don't try putting holes in things that sink, yeah?*
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Old 20-01-2009, 10:05 AM   #21
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Quote:
Originally Posted by Mullett
Intake

(cat back) Exhaust

Tune

Then a turbo if you want to go any faster

-RM.

Talking of which, I might get a round of hard-pipe intake pipes made up, I'll post a thread about it and get an idea of how many I can get rid of when i get back home (about a month away :( )

All the ones from online seem crappy/overpriced, I doubt it'd cost more than $50-100 for the pipe and silicon connectors.

I'm in....
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Old 20-01-2009, 12:36 PM   #22
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+1 here
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Old 20-01-2009, 09:43 PM   #23
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Ok, I'll measure up when I get back to Perth. Most likely run it straight down from the TB, then across infront of the passenger wheel, behind the foglight. Anyone have any better ideas?

-RM.
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07 LT CL, CAI, timing, XR5 springs, LS Zetec wheels
16.045...0.05 of a second! I wanted a 15sec pass!

93 GSR/Evo3...too much to mention, 12.2sec 1/4, FOR SALE!

*Maybe we don't try putting holes in things that sink, yeah?*
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Old 20-01-2009, 09:51 PM   #24
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I was just gonna shove a pod in the hole left by the std airbox. So ur plans are much better so long as it's easy to access the filter....

I ran around a while ago with no filter connected - cool and wet with no dust. Anyhow it pulled like 16 year old so there;s a noticeable gain lurking in the inlet.
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Old 21-01-2009, 12:43 AM   #25
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Bring it into the front airdam.
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Old 21-01-2009, 08:38 AM   #26
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bingo
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Old 21-01-2009, 09:42 AM   #27
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Might need to make it adjustable so you can twist it around when it's raining hard.
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Old 21-01-2009, 04:17 PM   #28
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Quote:
Originally Posted by BlackLS
Might need to make it adjustable so you can twist it around when it's raining hard.
Hmmm.... kind of reminds me of this thread I found:


[font='Verdana','sans-serif']http://www.audiforums.com/forum/showthread.php?t=80267

funniest thing I ever heard and I thought I knew little about engines... [/font]
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Old 21-01-2009, 04:24 PM   #29
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Quote:
Originally Posted by Velociraptor82
Hmmm.... kind of reminds me of this thread I found:


[font='Verdana','sans-serif']http://www.audiforums.com/forum/showthread.php?t=80267

funniest thing I ever heard and I thought I knew little about engines... [/font]

HOLY

-RM.
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07 LT CL, CAI, timing, XR5 springs, LS Zetec wheels
16.045...0.05 of a second! I wanted a 15sec pass!

93 GSR/Evo3...too much to mention, 12.2sec 1/4, FOR SALE!

*Maybe we don't try putting holes in things that sink, yeah?*
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Old 21-01-2009, 09:59 PM   #30
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reminds me of stories of apprentices that when doing a service draining the oil, start the engine up to blow the oil out faster..... then wonder why the engine has trouble running after that. :
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