Fidanza flywheel review - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

burdickjp · 08-30-2015, 06:29 PM

I've put in quite a few Fidanza flywheels over the years. I've had them in Civics, MR2s, and an AE86s.
They were all characterized by needing quite a bit of throttle to get going. The lack of rotational inertia was rather obvious.

I just dropped a Fidanza in my FR-S with an Exedy OEM replacement clutch and Driveshaftshop aluminum driveshaft.
I've been thus far surprised at the driving characteristics. The only time I notice the lack of rotational inertia is how quickly revs fall from high RPMs. Starting from a stop is not at all difficult.

If you're considering a flywheel and are expecting the Fidanza to behave as it does on lower displacement or lower powered cars, it doesn't.

I have noticed quite a bit more drivetrain noise below 2500 RPM. It sounds like lugging up to about 2200 RPM. Makes some sense, but it is a negative, as that's around-town RPMs. I think the one piece driveshaft probably contributes to that.

Anyway. That's my thoughts. Please comment or ask any questions.

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ChrisD · 08-30-2015, 08:25 PM

Quote:

Originally Posted by bur****jp

I've put in quite a few Fidanza flywheels over the years. I've had them in Civics, MR2s, and an AE86s.
They were all characterized by needing quite a bit of throttle to get going. The lack of rotational inertia was rather obvious.

I just dropped a Fidanza in my FR-S with an Exedy OEM replacement clutch and Driveshaftshop aluminum driveshaft.
I've been thus far surprised at the driving characteristics. The only time I notice the lack of rotational inertia is how quickly revs fall from high RPMs. Starting from a stop is not at all difficult.

If you're considering a flywheel and are expecting the Fidanza to behave as it does on lower displacement or lower powered cars, it doesn't.

I have noticed quite a bit more drivetrain noise below 2500 RPM. It sounds like lugging up to about 2200 RPM. Makes some sense, but it is a negative, as that's around-town RPMs. I think the one piece driveshaft probably contributes to that.

Anyway. That's my thoughts. Please comment or ask any questions.

Sent from my XT1045 using Tapatalk

I had a similar opinion after getting mine installed - didn't seem to make much noticeable difference to performance. I've also noticed a lot of noise under 2500 RPM as well. Tempted to swap back to the stock flywheel just to get rid of the horrible noise tbh

celek · 08-31-2015, 10:02 AM

Not sure if the flywheel is making the noise or that you have paired it to a Aluminum driveshaft at the same time which its a hollow resonating tube.

ChrisD · 08-31-2015, 10:45 AM

Quote:

Originally Posted by celek

Not sure if the flywheel is making the noise or that you have paired it to a Aluminum driveshaft at the same time which its a hollow resonating tube.

Mine is still on the stock drive shaft (well, we call it a prop shaft here in the UK) and I get the same horrible noise he's talking about when the engine is bogging down a little and I didn't notice that much before I got the new flywheel installed

OkieSnuffBox · 08-31-2015, 10:58 AM

It's the transmission if it's a "rattle" sound. The lighter flywheel doesn't dampen the power pulses as much so you're hearing the clearance between the gears.

Not a big deal.

celek · 08-31-2015, 10:58 AM

Quote:

Originally Posted by ChrisD

Mine is still on the stock drive shaft (well, we call it a prop shaft here in the UK) and I get the same horrible noise he's talking about when the engine is bogging down a little and I didn't notice that much before I got the new flywheel installed

OE clutch or upgraded?
Many people complaining about upgraded clutch on stock flywheel making noises as well.

OkieSnuffBox · 08-31-2015, 11:00 AM

^"I put race car parts on my car, why aren't they as quite as OEM?"

burdickjp · 08-31-2015, 01:53 PM

I wouldn't describe it as horrible. It makes more noise. It's understandable.

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08-30-2015, 06:29 PM	#1
burdickjp Senior Member Join Date: Jan 2015 Drives: 2013 ultramarine Scion FR-S Location: Royal Oak, MI Posts: 293 Thanks: 140 Thanked 137 Times in 70 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Fidanza flywheel review I've put in quite a few Fidanza flywheels over the years. I've had them in Civics, MR2s, and an AE86s. They were all characterized by needing quite a bit of throttle to get going. The lack of rotational inertia was rather obvious. I just dropped a Fidanza in my FR-S with an Exedy OEM replacement clutch and Driveshaftshop aluminum driveshaft. I've been thus far surprised at the driving characteristics. The only time I notice the lack of rotational inertia is how quickly revs fall from high RPMs. Starting from a stop is not at all difficult. If you're considering a flywheel and are expecting the Fidanza to behave as it does on lower displacement or lower powered cars, it doesn't. I have noticed quite a bit more drivetrain noise below 2500 RPM. It sounds like lugging up to about 2200 RPM. Makes some sense, but it is a negative, as that's around-town RPMs. I think the one piece driveshaft probably contributes to that. Anyway. That's my thoughts. Please comment or ask any questions. Sent from my XT1045 using Tapatalk Last edited by burdickjp; 08-30-2015 at 08:21 PM.

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08-31-2015, 10:58 AM	#5
OkieSnuffBox Senior Member Join Date: Aug 2014 Drives: '23 BRZ Limited Location: OKC, OK Posts: 2,000 Thanks: 665 Thanked 1,240 Times in 710 Posts Mentioned: 9 Post(s) Tagged: 1 Thread(s)	It's the transmission if it's a "rattle" sound. The lighter flywheel doesn't dampen the power pulses as much so you're hearing the clearance between the gears. Not a big deal.

08-31-2015, 11:00 AM	#7
OkieSnuffBox Senior Member Join Date: Aug 2014 Drives: '23 BRZ Limited Location: OKC, OK Posts: 2,000 Thanks: 665 Thanked 1,240 Times in 710 Posts Mentioned: 9 Post(s) Tagged: 1 Thread(s)	^"I put race car parts on my car, why aren't they as quite as OEM?"

08-31-2015, 01:53 PM	#8
burdickjp Senior Member Join Date: Jan 2015 Drives: 2013 ultramarine Scion FR-S Location: Royal Oak, MI Posts: 293 Thanks: 140 Thanked 137 Times in 70 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I wouldn't describe it as horrible. It makes more noise. It's understandable. Sent from my XT1045 using Tapatalk

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