Aluminum flywheel vs Steel and Clutch ?

[FUNFER2]

Sorry but, mine are the 31 spline. Years ago, (Gees, has it really been 9 years) I got the numbers off the tag and called Currie, they said it's a locker with 31 splined axles. The weak point is the tranny.

I haven't started researching yet, who has the cheapest price ?

Without changing my 331 gears, I've heard someone here say you can order what gears you want in the TKO 600 ?

What are yours and how do you like them. I think I herd a .82 overdrive, what about 1st ?

With my TKO 3550 & 331 gears, at 60 mph I'm at 2,000 rpm. Which is great.

[blykins]

Originally Posted by FUNFER2

I haven't started researching yet, who has the cheapest price ?

Without changing my 331 gears, I've heard someone here say you can order what gears you want in the TKO 600 ?

Me....

I sell the trannies too.

You can't order custom gears with the 600 other than the overdrive. .64 or .82. If you like the rpm range now, I'd just stay with what you have. The bigger engine will have a lot more torque, which will help out with low rpm street manners.

[FUNFER2]

Can you post or email me the gear ratio between the two ?
I'll send you a PM or mail.

[undy]

With your rear gears and and the small mechanical roller your new 482 won't like 5th gear (0.64) at any reasonable cruise speed. See what kind a deal you can get from Brent on a TKO600 with a 0.82 overdrive. Summit sells them for $2195, for a reference point.

The TKO 600 has a 2.87 first, compared to your TR3550's 3.27. You will appreciate that with more cubes (482) and the 3.31s. First gear will be much more usable. BTW, don't go 10 spline input (weaker shaft) go 26 spline. You'll just need to specify 26 spline when you order your clutch disc.

You're one of the few lucky ones that got a 31 spline Currie crate rear, most were 28 spline. As you said, you'll be fine with that.

[FUNFER2]

What third member gearing do you have ?

What are your rpm's @ 60 mph ?

It seams that a lot of guys with the Tremec 600, have a lot steeper gears than my 331's. Can't recall the number ? 382, high 3,.......something. lol

I'll have to search.

[blykins]

Kevin, email #2 is headed your way.

[undy]

Originally Posted by FUNFER2

What third member gearing do you have ?

What are your rpm's @ 60 mph ?

It seams that a lot of guys with the Tremec 600, have a lot steeper gears than my 331's. Can't recall the number ? 382, high 3,.......something. lol

I'll have to search.

The 3.31s are fine. If anything I'd go taller. I'm running 3.25s now, down from my old 3.70s. With a 0.82 overdrive the 3.00s would be great for the street too. There's plenty of speed/RPM calculators available online. Your tire height is a critical part of the calculation and needs to be considered also when selecting gearing. Talk to Keith. Ask him what the minimum cruise RPM will be with your 482 combo too. Give me your anticipated tire height and I'll run a couple speed/rpm scenarios for you.

Dave

Dave

[Stentor]

Originally Posted by FUNFER2

What third member gearing do you have ?

What are your rpm's @ 60 mph ?

It seams that a lot of guys with the Tremec 600, have a lot steeper gears than my 331's. Can't recall the number ? 382, high 3,.......something. lol

I'll have to search.

You will be fine with the 3.31 gear with the TKO 600 and .82 OD.

I have a TKO 600 (.82 OD) with 3.42 rearend (and a KC bored/stroked aluminum FE)--the comination works well (and I wouldn't hesitate for a minute to switch to a 3.31 rearend).

[FUNFER2]

I'm happy my rear end will work out.

Blykins- I haven't worked out the detail's with the cam. I don't think I have your 2nd email ?

Dave, the tire I have now is a 295/50/15
The Billboards I think,....are either 26.5" or 27". Which I have no idea what that converts to ? Someone here on CC, had a chart but, I don't recall who ?

[blykins]

I sent you an email on the gear ratios and the pricing on the transmission.

I'll send you a PM with it all.

[undy]

Originally Posted by FUNFER2

I'm happy my rear end will work out.

Blykins- I haven't worked out the detail's with the cam. I don't think I have your 2nd email ?

Dave, the tire I have now is a 295/50/15
The Billboards I think,....are either 26.5" or 27". Which I have no idea what that converts to ? Someone here on CC, had a chart but, I don't recall who ?

Given a 3.31 rear ratio, .82 final drive, and a 27" tire you will turning 2195 RPM at 65, 2027 at 60. 26.5" tire height will yield 2237 at 65.

All things equal, with a 0.64 and a 27" tire you'll see 1714 RPM at 65 and 1582 RPM at 60.

The 0.64 will be useless for road racing..

[greg schroeder]

The aluminum flywheel is a little quicker in 1st and 2nd if you have the tires to stick. It also responds to street surface variation for acceleration a bit better as the rotating mass is lighter. For 3rd and 4th there's basically no diffrence in acceleration.

The heavier flywheel will hit the next gear with that rotational energy harder to give a little push if you shift quick before revs drop. The transmission may not like the quick shifts as much with the heavier flywheel.

[JAM1775]

AL Flywheel = great investment.
Disadvantage ....slightly more drag on the decel vs steel FW

Advantages
Decreases centrifigul weight on the motor & makes car feel lighter to motor
Decreases the hit of the clutch on the tranny/tires due to less centrifigul force
Faster revs
Allows high reving off line wit less tire spin
Slows down faster

[FUNFER2]

Dave- The Ram aluminum flywheel is part #2519. $425.
That's the cheapest I've found. I'll call keith.

Jam- that sounds correct. Thank you.