VietRacingGuy

i kinda confuse,
automatic trans. has flywheel or flexplate?
SLP sell aluminum fly wheel for LS1 with automatic trans. 2 tenth a second 1/4 mile time faster.

93LS1RX7

iTrader: (8)

All autos use a flexplate but some people refer to them as a flywheel.

Auto=flexplate
manual=flywheel

BigPlanTransAm

what is the difference?

Xsta Z 28

iTrader: (2)

The flex plate is basically a heavy gauge sheet metal disc (typically balanced) with a ring of teeth welded on, around the perimeter for starting.

A flywheel is a heavy chunk of typically cast metal that acts as the contact surface of the manual clutch similar to a brake rotor, but also has the teeth around the perimeter for starting the car.

Kind of a crued answer but I think it works.

SteveC

Another common name for the flexplate is a "mating ring".

SteveC

VietRacingGuy

so if i want to buy light weight fly wheel for my automatic z28, then i should tell the seller i need the flex plate, right?

WicketMike

iTrader: (13)

alot of people call a flywheel a flexplate and vice versa

Jpr5690

iTrader: (13)

i think theyalso offer the a flex plate but i think what their tring to say is your car has a flex plate instead of a flywheel so you would wanna order a new flex plate not a new fly wheel...... keep in mind the install is gonna cost a few bux for that .. unless youve done everything else why dont you do a cam or some headders or something less labor intensive thats gonna be big $$ for little gain form what i hear

Jammer

iTrader: (1)

Can a flex plate really make a difference folks?

SteveC

I would not purchase the 2001 & 2002 flexplates, they are thinner, and have a tendency to crack, Here is the ticket: Go to the top right blue column and click on "SFI Flexplates"

http://www.thunderracing.com/index.c...ategoryid=1081

SteveC

Gen3Benz

iTrader: (4)

i agree with jpr, spend your money elsewhere.....but if your gonna yank the trans get a higher stall converter and you wont need the extra horsepower to go faster.

the lighter flexplate will allow your engine to spin quicker, just do both