Flywheel Poll, Choice of flywheel for my swap Options

[Aaagogo]

I've got a choice of 2 from David norton

1050 high carbon billet steel

T7 7075 aluminum

which one will you guys choose,

engine is 3sgte 2nd gen

tranny is the stock GT tranny

[NuclearHappineS]

steel = heavy and durable
aluminum = light but distorts
chromoloy = light but hard (right? , fidanza sells chromoly flywheels so why isn't it on the list)

As far as flywheel weight

if you have an automatic, a big laggy turbo , or race in the 1/8th mile and launch alot then a stock or heavier than stock flywheel is better

if you have a manual, or turbo that won't easily bog you down if you miss launch it, or like high speed racing, road racing, 1/4 mile racing...etc then a lighter flywheel will do it

the trade off is launch vs acceleration

a heavier flywheel will 'store' more energy and thus you can transfer more of it instantaneously to the wheels on the launch. However once the launch is over, you're carrying that extra rotational weight throught the entire run with you.

a lighter flywheel stores less energy and thus it will give you a worse launch, and you're more likely to bog the car down (as you require more energy than the flywheel is capable of delivering ot the wheels and so the excess load is placed on the motor and the motor bogs) ... however once you've gotten past launching ... you're not carrying that excess baggage... and so you'll have more 'top end'

this is kind of like the AWD vs RWD/FWD issue

AWD will post great 60' , 0-60 and 1/8th mile times...
a RWD/FWD with the same power will shine more past the 1/4 mile mark and post a higher trap speed and higher top speed than an AWD car ...because of the lighter weight and the lower drivetrain loss

so it's a personal preference.. are you a short sprint racer , or are you a top end racer... based on that ... you can answer the flywheel weight question (or find a happy medium between the two because stock flywheels weigh 18lbs maybe and you may have 15, 11, 9, and 7 lbs options)

Then there's the materials question