Moment Of Inertia - Reduce MOI & Gain Horsepower

For the not so smart folks like me, I wanted to share some information I came across in my quest for power and understanding how things work.

This moments of inertia article made me fully understand how reducing weight gains horsepower.

http://www.stockcarracing.com/techar...moi/index.html

I can wait to feel MOI in the Z after replacing my flywheel, clutch, pistons and connecting rods with lighter components.

[tf95ZR1]

Originally Posted by HAWAIIZR-1

I can wait to feel MOI in the Z after replacing my flywheel, clutch, pistons and connecting rods with lighter components.

Your MOI will also improve with the much lighter wallet!

Originally Posted by tf95ZR1

Your MOI will also improve with the much lighter wallet!

Yeah, I know what you mean. Everything is expensive for this beast.

[Scrrem]

Wow, that some great information. I will have to test drive a bothers car that has made the switch. I have read about the gear rattle, just wonder if I can live with it when sitting behind the wheel.
Rich

[Kb7tif]

Originally Posted by Scrrem

Wow, that some great information. I will have to test drive a bothers car that has made the switch. I have read about the gear rattle, just wonder if I can live with it when sitting behind the wheel.
Rich

I did the fidanza swap, If your trans has some wear, it will have more gear noise then others. On mine the difference was a good one in the low gears.
Spins the tires much easier. On mine I get no noise at idle but on light throttle I do. Well worth it mod.
Plan on there being noise.

Originally Posted by Scrrem

Wow, that some great information. I will have to test drive a bothers car that has made the switch. I have read about the gear rattle, just wonder if I can live with it when sitting behind the wheel.
Rich

Rich,

Just a Kb7tif mentioned, I think from what I have heard the rattle is inevitable even if slight. A friend of mine here has the light weight flywheel with ZF6 on an LT1 and I can barely hear his if at all, not to say that mine will be the same. Another friend of mine that has a new Porsche 911 had the same results with the lightweight flywheel and even thought his rattle is more pronounced, I can live with it. I think the subject has been beat like a dead horse on other threads. Here is what Bill B from ZFdoc has to say about the noise:

The "at idle gear clatter" with LT5 engine and light weight flywheel
combination can range between "not that bad" down to "really bad" depending on the health/integrity of the ignition system. The
slightest miss in the ignition system will cause gear clatter to really be
present. There are a few tricks to minimizing this occurance of gear clatter:

1) Go through the transmission's main bearings setup to make sure that
the very thickest shim possible is installed at the front and rear main bearings as well as the counter shaft front main bearing with the retainer clips fully seated. I know this really helps based on experience. This takes
about one hour and $100 in small parts, gaskets and new oil.
2) replace the four of the eight coil fasteners with nylon fasteners which eliminate the coil's propensity to develop shorts at the coil plug-in lead ends.
3) New coils/wires/plugs are always better to do this with if they aren't already new.

He added to state: Ace Hardware sells nylon bolts the same thread size as the OEM coil fasteners (8 total). Take four nylon bolts and cut them to the correct length... results in lower propensity for the coil to seek/develop an altered ground path through the least durable portion of the coil at the fastener lug between the coil leads.

[Kb7tif]

To me it goes like this, if you puttz around with your can you will see no benefit, and very well introduce fresh set of noises. If you like to wind that engine up then the fidanza is for you.

[WB9MCW]

RUT-RUT-RUT

At IDLE engage the clutch and no more rattle.

Mine is loud and when you lug the engine in low rpm's in 1st & 2nd it makes folks ask WTF is that noise

I tell them "that is the sound of HIGH PERFORMANCE".

They look at you with a blank stare

I mumble things about ceramic clutch- lightweight alum flywheel-low mass-and "special HD German Tranny" -- rattle of the syncros -- unbalanced --blah-blah-blah-- no biggie--no harm -- no foul

By the time I get around to doing a 0-100 they have no more comments for the rest of the ride about the noise.

Because they have been ZRONED & are now ZROWNED

That is when I ask em if 400 HP is enough for a Corvette and what the new ZR1 with 600+ must be like? or even a C6 Z06 @ 500 HP?

The answer is always the same --- "TOO MUCH - 400 IS PLENTY"

Later I send em this link of the famous 900 HP ZR-1

900 HP = 9 Seconds of pure LUV

>>>http://www.youtube.com/watch?v=rQeJZ...layer_embedded

>>>http://www.youtube.com/watch?v=tHuhn...layer_embedded







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