Difference between flywheel and flexplate

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Apr 7, 2003 | 06:06 PM

Mark 91RS Supercharged

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From: Nevada, TX USA

Difference between flywheel and flexplate

What is the differece between a fly wheel and flexplate?

Thanks,

Mark

Apr 7, 2003 | 06:14 PM

Fei

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Joined: Mar 2003

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From: Richland, WA

Car: 1989 Trans Am

Engine: 94 383 LT-1

Transmission: Tremec 3550

My understanding is a Flexplate is what a torque converter bolts to and a flywheel is what a clutch and pp bolt to.

AKA Auto and Manual

Apr 7, 2003 | 07:56 PM

jmd

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From: Aridzona

Car: `86 SS / `87 SS

Engine: L69 w/ TPI on top / 305 4bbl

Transmission: `95 T56 \ `88 200-4R

Flywheels don't flex.

much.

Apr 7, 2003 | 08:08 PM

Apeiron

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From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Flexplates don't fly either.

Apr 8, 2003 | 05:50 AM

ronterry

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Joined: Nov 1999

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From: Elizabeth, Colorado

Car: '94 Corvette

Engine: LT1

Transmission: 4L60E

The two common function for both of them is they transfer engine torque to the transmission, and both have geared edges so the starter can turn the motor over.
They both attach to the crankshaft. The flywheel has a smooth surface for the clutch to apply against.

Flex (left) / Fly (right)

BTW: I've seen flexplates fly, & flywheels flex - It just isn't very pretty. This is why they enforce 'scatter' shields & 'flak' jackets on the bell housings in some forms of racing. ( key words -> scatter & flak