lightweight flywheel

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Old 09-02-2004 | 03:12 PM
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lightweight flywheel

just browsing the internet and saw this http://www.comptechusa.com/store/product409.html can anyone remind me what the purpose of the lightweight flywheel is and and what the postives and negatives are of having one thanks
Old 09-02-2004 | 03:35 PM
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From: Eight-Oh-Eight
on another note, I emailed Tilton (made the clutch and flywheel for the RTR tsx) about offering a product for us mainstream tsxers. They responded by saying that RTR bought way more flywheels than expected and they could give us a contact at RTR. The Tilton rep said RTR may sell their extra flywheels to anyone who wants it. It was a bit peculiar though that RTR said Tilton made a clutch and flywheel, yet Tilton only mentioned a flywheel. I'd be surprised if RTR opted to use a stock clutch for competition.
Old 09-02-2004 | 03:48 PM
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The last thing you want is a racing clutch on a street car. They're impossible to drive in stop and go traffic.

Lightweight flywheel can be a good mod but just don't underestimate how long it takes to instal. If you were going to do any clutch upgrades, that would be the time to do it.
Old 09-02-2004 | 05:23 PM
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well i was wondering if one was to start boosting on the tsx (SC or TC) would the clutch be able to handle the power? I do not want to purchase a racing clutch..... something more durable maybe??? thanks
Old 09-02-2004 | 05:48 PM
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Originally Posted by AZTSX
well i was wondering if one was to start boosting on the tsx (SC or TC) would the clutch be able to handle the power? I do not want to purchase a racing clutch..... something more durable maybe??? thanks
Yes and no. If you just drive it around town, the clutch will handle it. However, once you start power shifting and the like, the clutch is going to slip for a bit before it grabs. Obviously it won't last long after that.
Old 09-02-2004 | 05:49 PM
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i would go with a stage 2 or 3 clutch if you arent going to race it.....
Old 09-02-2004 | 09:37 PM
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9 hour installation time????!!!!
Old 09-02-2004 | 11:45 PM
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you are going to remove the entire transmission to get to the flywheel. a person can't do it by themself, and its going to cost a lot to upgrade. like dan said, its optimal to swap them when you already need to be in there to replace the clutch.
Old 09-03-2004 | 12:43 AM
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i havent seen any clutches available for the tsx as for the moment are there any other applications that would work? i was jw b/c once a SC/TC comes out i would like to do everything at once ie new clutch,flywheel,SC or TC,etc.... although i know it will still be a while till before it is released ...thanks again
Old 09-03-2004 | 08:28 AM
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Originally Posted by AZTSX
i havent seen any clutches available for the tsx as for the moment are there any other applications that would work? i was jw b/c once a SC/TC comes out i would like to do everything at once ie new clutch,flywheel,SC or TC,etc.... although i know it will still be a while till before it is released ...thanks again
That's a wise move AZTSX.

I haven't seen any clutches available yet either but I imagine once forced induction becomes more popular we'll start to see kits on the market. It is also quite possible that you could have a clutch adapted from another car.
Old 09-03-2004 | 12:37 PM
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Originally Posted by NJtsx
9 hour installation time????!!!!

Depanding on how much tools you have and how much beer you have to offer to your friends. 2 hours should be fine!!!
Old 09-03-2004 | 02:18 PM
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the more beer you offer, the longer the installation time
Old 09-09-2004 | 11:31 PM
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From: Little Rhody
Originally Posted by AZTSX
just browsing the internet and saw this http://www.comptechusa.com/store/product409.html can anyone remind me what the purpose of the lightweight flywheel is and and what the postives and negatives are of having one thanks
Not sure if you ever got an answer for this quesiton, but basically a lighter flywheel allows the car to rev up more quickly. If you have ever listened to a racecar rev its engine you will notice that it revs up really fast and can redline quickly. Next time you are in your car, step on your gas and notice that it does rev as quickly... that is due to the heavier flywheel.

The one thing to be careful of with a lighter flywheel is the idle speed. A car with a lighter flywheel will tend to idle at a higher RPM with a lighter flywheel. hope this helped.
Old 09-10-2004 | 10:18 AM
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And it'll stall MUCH more easily. That's why Dan said it's a hassle in stop-and-go traffic.
Old 09-10-2004 | 10:45 AM
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Not to mention the possible drop in rpm in between shifts due to the decrease in momentum from the reduced weight.
Old 09-10-2004 | 02:14 PM
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Like JTso said, the whole reason cars have flywheels is to store the engine's rotational momentum to smooth out shifts and whatnot. A lightweight flywheel works both ways; easier to speed up, but since it stores less energy, between shifts the engine will lose more RPMs.

A bad thing with a VTEC car if you ask me. I bet if someone compared acceleration times between cars with light and regular flywheels, you would see that the car with the lightweight flywheel would be:

faster to 30
slower to 45
faster to 60
slower to 75
and so on..
Old 11-04-2009 | 03:13 PM
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I know that this is a really old thread, but just thought I would contribute my experience.

My previous car was a '97 Integra GSR. I had i/h/c/e and also UR pulleys and an Integra Type R flywheel. Two of my favorite mods were the lightweight UR pulleys which pulled harder from idle to redline and also the ITR flywheel.

I think where a lot of people become frustrated with flywheels is that most of the aftermarket flywheels out there focus their advertising on who has the lightest flywheel possible. IMO super light flywheels should be more for racing applications. The make the engine rev nice and fast and help with initial acceleration, but like stated can drop the rpms out of the optimal power band between shifts. Going "too light" so to speak is the problem.
A moderately lightened flywheel such as the GSR (18lbs stock) and the ITR (15lbs) stock (only 3lbs difference here) helped with acceleration in every gear due to faster revs and also didn't drop my rpms too much during shifts. 5th gear acceleration on the freeway was significantly improved as well often eliminating the need to down shift in certain passing situations unlike before the upgrade.

I'm sorry this is so long winded, but I think moderately lightened flywheels can provide more balance for daily drivers like us. Perhaps options like flywheels from the k20 RSX-S, the japanese Integra DC5R, or maybe the new Civic SI. Does anyone know the weight of the TSX fly vs the weights of these other cars? I don't even know if they could be installed properly, just throwing it out there for idea sake.
Old 11-05-2009 | 08:17 AM
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I agree. Having had a Fidanza flywheel in my 04 TSX, it was fantastic. I loved every aspect of it and it was about 10lbs lighter than stock. I did have to take my flywheel out because the clutch kit (ACT) decided to have a failure (mentioned in another thread), thus having to put in an Exedy application which required the flywheel to be replaced (basically an RSX Type-S application). So I still have my Fidanza, which simple needs the friction ring replaced available if someone were interested. I initiated the construction of it with Fidanza and again, it was absolutely one of my more favorite mods, but it wouldn't work with the Exedy clutch to do dimensional differences. It works with any TSX specific clutch application, thus keeping it available for use on stock clutches.
Old 01-04-2011 | 02:54 PM
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Other than getting a kit that included a lightweight flywheel. How would be the best way to know if the flywheel you are looking at is compatible with another manufactures clutch kit?
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