Honda/Acura Tech Honda tech discussion.

Flywheel..How light is too light?

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Old Sep 11, 2004 | 06:40 AM
  #11 (permalink)  
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Originally posted by Sneakin Deacon
running too light a flywheel makes taking off very difficult, less weight means less force to slow down (and vice versa). billy's wrx for example, had a lightened flywheel, and he had trouble launching because the car would bog, went back to his stocker and it is fine and dandy. my advice is find a happy medium, tried and true things...ive driven a del sol with an act 6 puck clutch and heavy PP, with some insanely light flywheel (wanna say 6lbs) and it was either feather the clutch, which was hard to do period, or raise the rpms some more and feather it a little less. but like i said, its something your going to have to feel out.
+1 with a lighter fly wheel you have to launch at a higher RPM. i've heard a stock flywheel will get you out of the hole faster, but a lightened fly will help you in the upper RPMS. on the launch that heavier rotational mass(stock fly) is going to put more power to the ground.
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Old Sep 11, 2004 | 06:55 AM
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yeh, with a lighten flywheel, u have to shift a lot faster or blimp the throttle a bit since the revs will drop faster than a stock flywheel.
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Old Sep 11, 2004 | 03:17 PM
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Originally posted by tampa railroad hobo
yeh, with a lighten flywheel, u have to shift a lot faster or blimp the throttle a bit since the revs will drop faster than a stock flywheel.
if it takes you that long to shift, that is driver downfall, not the cars.

even if the revs drop, they come right back up if your clutch doesnt slip once its engaged. for example 60mph is a mathematically set RPM in each gear...a lightened flywheel doesnt change your gear ratio.
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Old Sep 11, 2004 | 05:12 PM
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Originally posted by `92CXhatch
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Old Sep 11, 2004 | 06:58 PM
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Originally posted by Sneakin Deacon
if it takes you that long to shift, that is driver downfall, not the cars.

even if the revs drop, they come right back up if your clutch doesnt slip once its engaged. for example 60mph is a mathematically set RPM in each gear...a lightened flywheel doesnt change your gear ratio.
Oh yeh, no doubt its a driver thing, but u think u want kick back a little when u drive every now and then. I wasnt saying it was a bad thing, just stating the effects of it when the revs fall. Well, maybe cause i'm a lazy person.. i dont know.
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Old Sep 12, 2004 | 03:12 AM
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aint gotta use the clutch to shift during regular cruising, so the dropping rpms wouldnt be a problem...for me anyways, i rarely use the clutch.
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Old Sep 12, 2004 | 12:39 PM
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Originally posted by Sneakin Deacon
aint gotta use the clutch to shift during regular cruising, so the dropping rpms wouldnt be a problem...for me anyways, i rarely use the clutch.
huh? you don't use your clutch? i'm obviously missing something
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Old Sep 12, 2004 | 01:01 PM
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trucker shifting woot woot!!!! hahahaha i can do it into 5th gear but i dont want to try it that often ... lord knows what it is doing to the car
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Old Sep 12, 2004 | 01:10 PM
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I think he means he uses the engine rpms to slip into gear. say at 3rd gear 7k pop out of gear and shift into 4th when the rpms drop to like 4.5k ( not sure on the actual rpm values). it takes some skill and until you get it right a whole lot of grinding but it can be done. I used to do it on my s15 pickup, but haven't taken the time yet on the honda.
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