Light weight flywheel.

[screaminMS]

what is yalls thought about getting the light weight fidanza flywheel? is it worth it?

 

[BillTheCat]

I don't have a lightened flywheel in my MS3, but I might ask you to clarify what you mean by your question. Are you asking to compare to other lightened flywheel options, besides Fidanza, or are you asking if "any" lightened flywheel is a good option, and simply mentioning Fidanza as one that comes to mind?

If the latter, I would ask if you have ever driven a vehicle with a lightened flywheel. It can make a dramatic (and sometimes violent) difference in how the car accelerates & decelerates. Engine braking with a lightened flywheel can be downright dangerous at times.

Generally speaking, for daily driving purposes, I would suspect that a lightened flywheel would be sort of pointless on the MS3, since we already have problems keeping the front wheels planted. Make the engine rev up even faster, and it'll just exacerbate the problem. Lightened flywheels are most useful on cars that are underpowered in the first place.

Unless you've gone full bolt-on & still aren't satisfied, I'd look into some of the easier bolt-on power mods well before the flywheel option.

I'm sure someone here with a lightened flywheel will be able to tell us more about how dramatically it affects the MS3 soon, though. I'll be curious to read firsthand impressions.

 

[screaminMS]

yes is it a good option is what i was meaning. fidanza was the first one that came to mind and yes i have driven a car with diffrent weight flywheels i use to a mini stock circle track car. i had that car completely modded out pretty motor and drive line wise. i had a 11.5lb clutch and flywheels setup on it and it made a world of diffrence i was just curious as to what people thought about them in the ms3's. i feel the ms3 revs up a little slow. im really aiming for more response and i figured that would be the greatest gain response wise then anything else. id love for more input on what else could be done to get more response from the car. im really new to FWD drive and fuel injection. i raced carbed ford 2.3's and this is a whole new ball game to me.

 

[Darth Vader]

Geez, I had a 2.3 Ford turbo (Merkur XR4ti) and this engine revs like a 2-stroke GP bike compared to that, lol. You're right though, compared to other Japanese cars, the Mazda's rev response is a little slow but, let me tell you this, the motor's broad powerband and mountainous torque are a function of load placed on the turbo. A blip to 10k F1 car engine character will actually likely make the car slower real world and certainly WAY more difficult to drive. On top of that, high rpm isn't where it's at on this engine, like the Ford 2.3T, it likes to run midrange best and it punches hard there. Game's over by 6k anyway.

 

[screaminMS]

Geez, I had a 2.3 Ford turbo (Merkur XR4ti) and this engine revs like a 2-stroke GP bike compared to that, lol. You're right though, compared to other Japanese cars, the Mazda's rev response is a little slow but, let me tell you this, the motor's broad powerband and mountainous torque are a function of load placed on the turbo. A blip to 10k F1 car engine character will actually likely make the car slower real world and certainly WAY more difficult to drive. On top of that, high rpm isn't where it's at on this engine, like the Ford 2.3T, it likes to run midrange best and it punches hard there. Game's over by 6k anyway.

mine was NA lol. but that motor reved like there was no tomorrow lol. i had it built to take 10 grand all day long lol. you could just barely blip the throttle and it was 6 to 7 grand just that fast. i had a .651 lift full roller setup in that motor. i miss that motor lol. i had almost 12 grand in that motor.

true that it could be slower. i have no expierence with turbo cars till this one so this is all new to me.

 

[BillTheCat]

With the stock turbo being a little on the fragile side on this car, I wonder if increasing rev response with a lightened flywheel would also spool up the turbo at a possibly unhealthy rate. Now, getting yourself a bigger, stouter turbo, combined with a lightened flywheel... that might be temtping. And pricey. But fun.

 

[Darth Vader]

I consider that unlikely. The spoolup rate is a function of the load placed on the unit. Load requires some duration at a particular rpm to be produced. Shorten the duration, leaving the stock redline the same and the load is actually reduced.

This has alot to do with why the Mazdaspeed Miata was such a flop. A zingy little motor just didn't suit the turbo app, real world. Turbos love it when they get protracted load at a particular rpm they are suited to. That's why diesel OTR trucks work so well with them.

 

[MSMS3]

Actually, the power is pretty much peaked out at 5,500 rpm, although it might be usable (but on the downswing) up to 6,000, where it falls flat on its ass.

But the torque is there down low - fat and broad. The power band between when the turbo really comes on at 2800-3000 rpm and the peak at 5,500 is very wide. This is not an "up top" rpm peaky engine.

Thus no need for a "zingy" light flwheel and several good reasons posted in this thread that it's a bad idea. IMHO.