2.4 Merc Steel vs lightweight flywheel???

[mxz]

Would I gain any performance or top end rpms by swapping my stock 2.4 steel flywheel with a stock lightweight one from a 2.4 Bridgeport?

Thanks

[WATERWINGS]

Mabey better acceleration, and longer crank life (at the top bearing), but I don't think any more top end.

[skidoo29]

what you think because I will have an extra one you can use it

[rmh77]

i FELT NOTICEABLE MID RANGE INCREASES ON A 2.4 200 WITH A LIGHT WEIGHT FLY WHEEL.

[Steven]

i weighed my fine tooth green flywheel on digital scales(not bathroom :D ) @9.41 lbs. the stock aluminum one weighed 7.01 lbs. now that 40 amp cast steel monster that came on it weighed 13 lbs!

[mxz]

Thanks for the info guys.

skidoo29, We wouldn't want your spare one sitting around collecting dust now would we?

[Techno]

I believe the reason for the change is to increase top rpm.
With a steel wheel you can't/shouldn't spin high but with the lightwieght you can go higher?

[T-REX]

I run a super lightweight, flywheel for a couple yeerz...It wuz borrowed, because I couldn't afford to have an aluminium one lightnend...When I sold Troy my drag motor, he needed hiz lil skinny wheel back, so I had to go back to tha stock 260 aluminium wheel....BOY WHAT A DIFFERNCE!!!...Wit tha super light weight it would go from 0 to 40 in less than 1.80secondz...(average 3, 0 to 40 passes)..........wit tha stock aluminium 260, it went 0 to 40 in 1.80 sec!!!.......MMMMMMMMM..........Then, top RPM wuz 9800 wit super light weight.......aluminium 260 wuz 9800!!!!!.........Quarter mile times wit skinny flywheel wuz 12.0's...Quarter mile times wit stocky wuz 12.0's......D we see a pattern here???........

Tha High dollar flywheels will help save tha crank, and or tha topo bearing...Now for tha performance gain or loss...NUN!!!!!! ....Maybe sum will see sum gain, because ov sumpth'in connected wit the change over, or tha WANT to see a gain, and even feel a differnce, but, when it gits down to tha nut cutt'in, Performance wise, THE LIGHTWEIGHT FLYWHEELS FALL IN THA SAME PERFORMANCE GAIN CATIGORY AZ A TUNER!!!...

This iz my test results, recorded from my test, which iz dun tha same ever time, and recorded...I'm not sell'in, or buy'in, so this iz juss for your info only...Now, U kin take tha stock 2.4 flywheel and paint it HEMI orange and gain 10 or 12 HP and a 1000 rpm;)

REX:cool:

PS: I have turned tha 260 wheel 10,700 wit tha 24" wheel...and no broke crank...

[skidoo29]

thanks rex and everyone els
mxz only asked because when he sees me with spare parts he starts thinkin if he puts them on his he is gonna be faster than me
sorry bro, ain't gonna happen this year


warren

[Techno]

T-REX
But he was going from steel to alluminum.
Whats the diff on that? Isn't that a stock low rpm to a performance high? With reasonable life?
The 9800 rpm is something I hope not to see.

[Raceman]

When I was foolin with inline 1500's I got the brite idea to order a T2 aluminum flywheel and put on it. I couldn't tell any difference. In the early V6 days I put alum T3 flywheels on my stock 1750's, mostly because I ran across a deal on a pair. I couldn't tell any difference then either. I agree with Rex:eek: on that. If you've got one for free, stick it on, it looks cool. If you turn the motor hard it's easier on the crank and upper bearing.

[RSM]

T-Rex I can unerstand that test comparison but what about going from 40 amp steel to a aluminum 16 amp aluminum? wouldn't that application be a bit more benifitial? My guess is the diffrence in amp draw would probable be worth more than the weight savings. Has anyone ever did this comparison a before and after. If a lake motor is going to see 7,000-7,200 from time to time putting out around 225 hp "if that matter" Is the switch to a aluminum 16 amp from a steel 40 amp a highly recomended swap
"Ill be sorry if I don't" type thing? Thanks Randy

[T-REX]

Steel vs aluminium...tha green or red 9amp flywheels are approx 2 1/4#s heavier than a stock aluminium(remove'in tha rope start ring on steel)...The super lite job I wuz use'in wuz approx 4#z lighter than tha stock alum...I added 4#s, and show NO differnce...So, remove'in 2(diffrence between steel and alum.) would show very little, if any diffrence in performance...NOW, for ever pound u put in flywheel, the stress on tha top bearing and crank rises considerably...BUT, on a river motor, 7500 being tha limit ov operation, tha steel will work juss az good az tha alum...Tha spinn'in weight will also help achieve sum added rpm, because ov the pendalum affect...REX

[Techno]

I guess thats my mind mess here. What is the rpm limit for one of these steel flywheels. I thought it was rather low. Or is it something else that limits the rpm to the don't go over 5800 or 6200 whatever it was?

[Steven]

what rsm and techno said. i thought turning max rpm at 7200 was too much with the heavy 40 amp wheel. dont notice much, if any performance gain, but was concerned about bearing problems. loosing 6 lbs couldnt be bad though!:)

[TB21]

i changed from a stock 16 amp steel to a stock 260 aluminum and the only difference i seen was my wallet was also lighter :confused: So i thought well its gotta get the $400+ sexxy cut down job to be better.....now i gotta tell ya i seen a big difference then......Now when i lift the cowling off everyone says eww ahhh look at that cool flywheel. I agree with trex , there aint 20 cents worth of difference in performance , but the guys that make the $$ from cuttin em up will tell you how much quicker it will rev , BS. What really cracks me up is the guys sellin the titanium hubbed flywheels for way to many $ , Give me a break the hub is so small in diameter the crank dont even know its on there:confused: spend the money on a prop or somthing.
TB

[T-REX]

I wuz not talk'in about turning a 40 amp wheel 7200 rpm...I don't even know if a motor with a 40 amp system will turn 7200rpm...
I would thank that tha larger magnets would put enuff load on tha wheel az not tolet it turn tha RPM ov a smaller amp wheel...

For what ever reason, the weight ov a 40amper iz too much for High rpm use...Now, U kan have tha 40amp flywheel lightnend, but it will still be heaver than a STOCK RED 9amp flywheel ov 2.4/2.0 fame!!!...U kan run a 16 amp stator wit tha red/green flywheel...This iz suffecient for EFI and Carbs...

Save ya money, paint it HEMI orange!!!...13buckz a pint vs $500and Yo flywheel....Hell, easy decision...U kin buy a return spring and a piston wit yo saved money, fer dat Merc....or buy 2 chryslers fer tha same;)

[Dave S]

That Merc made the flywheel for offshore use. When a boat launches off a big wave, the stress is more pronounced. That is how a gyroscope works, a big heavey weight spinning at high speeds trys to stop out side forces from taking it off its axis. When you start bouncing off waves=the axis the wheel trys to stop the change, putting stress on the crank. As far as the 40 amp,the lighter is better and cooler too, the 40s make heat making 40 amps.

[Dave S]

And a neon pink flywheel will make .05 more HP on a dyno than a HEMI orange one:p