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> New Type lV Build, Done Quick & Cheap
Type 4 Unleashed
post Jun 5 2009, 12:47 AM
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CREATIVE TYPE lV ENGINEERING
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jmill
post Jul 23 2009, 07:26 PM
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I would think you'd get worse mileage with a heavy flywheel. I thought they were beefy to handle the heat. (IMG:style_emoticons/default/confused24.gif)
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ArtechnikA
post Jul 23 2009, 07:33 PM
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QUOTE(jmill @ Jul 23 2009, 09:26 PM) *

I would think you'd get worse mileage with a heavy flywheel. I thought they were beefy to handle the heat.

Mostly they're heavy to improve idle and keep idiots who can't handle a clutch from stalling at stoplights.

Consider this - when the car is in motion, THE ENTIRE CAR is attached to the rotating mass...

There was a guy from Hawaii trying to promote the 'heavy flywheel makes for better mileage' theory about 20 years ago. You can tell how god an idea it is by observing all the 100-lb flywheels on Hondas and such...
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Todd Enlund
post Jul 23 2009, 09:50 PM
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QUOTE(ArtechnikA @ Jul 23 2009, 05:33 PM) *

There was a guy from Hawaii trying to promote the 'heavy flywheel makes for better mileage' theory about 20 years ago. You can tell how god an idea it is by observing all the 100-lb flywheels on Hondas and such...

Well, there is a tradeoff... acceleration. And a point of diminishing return... which I'm sure is well short of 100lbs. A heavier flywheel will keep the engine speed more constant, which will result in better fuel economy. How much better? I dunno. Probably still depends more on the driver.

I know of a guy that put a huge flywheel under his Pinto. He'd spool it up, shut the engine off, and drive home on the flywheel. Regenerative braking put energy back into the flywheel.
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Posts in this topic
Type 4 Unleashed   New Type lV Build   Jun 5 2009, 12:47 AM
Type 4 Unleashed   :WTF:   Jun 5 2009, 12:48 AM
johannes   :popcorn:   Jun 5 2009, 02:36 AM
Type 4 Unleashed   :WTF:   Jul 22 2009, 07:59 PM
type2man   :popcorn: :popcorn: Keep it comin along, were all...   Jul 22 2009, 08:39 PM
r_towle   Why are the rod bolts welded? Why are there little...   Jul 22 2009, 09:32 PM
Type 4 Unleashed   :WTF:   Jul 22 2009, 10:13 PM
Borderline   A 2.6 Ltr will make one hell of a street engine...   Jul 22 2009, 10:44 PM
Type 4 Unleashed   :WTF:   Jul 29 2009, 01:52 AM
HAM Inc   Why not just degree it and find out for yourself...   Jul 23 2009, 08:59 AM
Type 4 Unleashed   :WTF:   Jul 23 2009, 11:18 AM
Chris Hamilton   I don't quite understand going with the stock ...   Jul 23 2009, 12:05 PM
Type 4 Unleashed   :WTF:   Jul 23 2009, 05:42 PM
Chris Hamilton   I autocross my car and drive it on the freeway. Di...   Jul 23 2009, 05:54 PM
jmill   I would think you'd get worse mileage with a h...   Jul 23 2009, 07:26 PM
ArtechnikA   I would think you'd get worse mileage with a ...   Jul 23 2009, 07:33 PM
Todd Enlund   There was a guy from Hawaii trying to promote the...   Jul 23 2009, 09:50 PM
Racer Chris   I know of a guy that put a huge flywheel under hi...   Jul 25 2009, 05:08 AM
Todd Enlund   I know of a guy that put a huge flywheel under h...   Jul 31 2009, 03:20 PM
r_towle   [quote name='Racer Chris' post='1195124' date='Ju...   Jul 31 2009, 04:15 PM
maf914   I know of a guy that put a huge flywheel under h...   Aug 3 2009, 01:54 PM
Racer Chris   :agree: By itself the weight of the flywheel has ...   Jul 23 2009, 09:49 PM
Type 4 Unleashed   :WTF:   Jul 23 2009, 10:08 PM
Jake Raby   Light flywheels impact MPG because they require mo...   Jul 23 2009, 10:13 PM
kwales   The heavier flywheel means higher system inertial ...   Jul 24 2009, 05:05 PM
Chris Hamilton   Hmmm.... that may help explain why there are no ...   Jul 24 2009, 05:31 PM
r_towle   Who cares.... Show more pics of the motor build.....   Jul 24 2009, 09:27 PM
Type 4 Unleashed   :WTF:   Jul 31 2009, 02:42 PM
Todd Enlund   I found out something interesting today, initial ...   Jul 31 2009, 03:23 PM
Chris Hamilton   Who manufactures those 103s?   Jul 31 2009, 02:43 PM
Type 4 Unleashed   :WTF:   Jul 31 2009, 02:52 PM
Type 4 Unleashed   :WTF:   Jul 31 2009, 09:24 PM
r_towle   looking good. Can you come up with a safe crank f...   Jul 31 2009, 10:42 PM
Type 4 Unleashed   :WTF:   Aug 1 2009, 12:54 AM
Chris Hamilton   looking good. Can you come up with a safe crank ...   Aug 3 2009, 01:45 PM


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