Seeking advice in choosing between aluminum and steel flywheels for my Mangusta

jmm3Member

I am finally getting the bits together enough to join the engine and transaxle, and load it into the back of 8MA600. Now I must choose the flywheel to be forever entombed under the hatches.

I have two flywheels, each balanced to the engine. 1, a 13 pound alumium / steel Centerforce, and 2, a stock 21 pound Steel. Engine is a 347 with TW heads and Webers. I am thinking that the aluminum flywheel would be fun for about a day. With the Webers, the revving needed, the tall tall tires, and the car will honestly spend a lot of time at "Cars n Coffee" parking lots rather than in the hills of Modena, I think the steel flywheel would really be the best choice.

I can add pictures, but they look like flywheels. jackshaft 002 [Large)

Thanks for the advice.

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1/15/195:19 PM

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lf-tp2511Member

Sounds like you already know the answer 😉

1/15/195:25 PM

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lousbbyMember

If you decide to go with the Centerforce flywheel I have a new in the box Centerforce pressure plate and dual friction clutch disc for a ZF-1 Transmission I will let go for $275.00 if you can pick it up. I will PM you my cell #

1/15/196:26 PM

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jtpanteraMember

I vote aluminum.

1/15/197:23 PM

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scifiMember

Correct me if I am wrong but the steel flywheel provides more momentum so revs don't drop so quickly?

Can you tell us more about the engine? When you said 347 I assumed it was based on a pushrod 5.0 from the 1990's. However I see you are still running the jackshaft for the alternator which makes me think it must be based on the old 302.

Also can you share details of the Webbers? (Are they truly Webbers or something else?

Thanks

1/17/198:49 AM

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joules"Racing is Life, anything before or after is just waiting" - Steve McQueen

At 21lbs your 'stock' flywheels sounds pretty light, I'd opt for that.

1/17/199:54 AM

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jmm3Member

joules posted:
At 21lbs your 'stock' flywheels sounds pretty light, I'd opt for that.

Thats which way I'm leaning. I'm not sure it is 21 pounds, but thats what it is supposed to be. (its not accessible right now)

1/17/1910:07 AM

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bosswrenchMember

Ever ride a big motorcycle? That free-revving action is what you get if you take too much weight off the car's rotating assembly. But with an otherwise stock 351-C crank/rods/pistons/harmonic balancer/clutch and an average street driver, you might not even notice the effect.

1/20/191:21 AM

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