Lightweight Flywheel for the Yaris?

[Tamago]

Originally Posted by CASTREX

Flywheel for the xA/xB/Echo = Flywheel for the Yaris

Clutch components are also interchangeble

then i would 110% recommend my setup:

Fidanza flywheel
Spec Stage 3 clutch. overkill for most situations, yes.. heavier than a stage 1 but lighter than a stock clutch. 100% streetable. not a on/off switch yet it's held 12psi of boost (guessing 180whp +)

[DeadEnd]

Originally Posted by Tamago

then i would 110% recommend my setup:

Fidanza flywheel
Spec Stage 3 clutch. overkill for most situations, yes.. heavier than a stage 1 but lighter than a stock clutch. 100% streetable. not a on/off switch yet it's held 12psi of boost (guessing 180whp +)

This thread is for interest in a NST flywheel. So if your championing another flywheel or adding your .02 cents stop. People are in this thread because they would be interested in a flywheel from NST not Fidanza. BTW I would love a NST flywheel.

[pinoypizzaboy]

Originally Posted by Callisto

It is a matter of rotational mass. Most of what a flywheel does is providing inertia to keep things running in between cylinder firings. With a heavy flywheel, you get smoother operation, because of increased rotational mass carrying more inertia, BUT it takes longer for the engine to run up to speed, and it always has to be doing more work to keep the mass of the flywheel spinning. If you lighten the flywheel, you make it easier for the engine to spin up to speed, but also remove some of the smoothness of operation, especially in cars that are use primarily for street driving. When you let off the power, the engine will drop down in speed faster. This can lead to herky-jerky (a highly technical term ) operation. It is a balancing act when weighting the flywheel, you want it heavy enough to be smooth, but light enough to provide responsive performance.

thanks for the info. so this thing will give better gas mileage and performance?

[Jerkratt]

Originally Posted by pinoypizzaboy

thanks for the info. so this thing will give better gas mileage and performance?

yes. it should less engine work

[RagnaCaT]

Question! Is it true that it's harder pull out of 1st gear in a hill well I've heard you tend to loose starting power and have to rev higher to put the car in march. Got to now cuase I leave in a hill and everything around is mountains.

[at3GG]

If I remember correctly, cali once said that the tranny has to be disassembled for this. If so around how much do you guys think it would be to have this installed at a shop? If it was reasonable I would get an NST fW before any of the other simply because of the effort they have put into this community. Whether you bring this out or not, NST, thanks for everything else so far. Keep it coming!

[NonStopTuning]

Thank you for all the kind words and the replies everyone, I certainly do appreciate it.

Just to give you a little info...

I have had a few discussions with the good people at SPEC. We have used their products in the past in some of our NST drift cars, and they have held up very well. I also know of other FD, Pro-AM, and NOPI series drivers who have used their products with good results. Their service has always been great, and their products are built here in the USA (something very important to us.) These are the main reason I decided to contact them when we started discussion about adding clutches/flywheels to our lineup here at NST.

According to the info I received, SPEC has done the R&D on a Yaris FLYWHEEL on a few cars, but has yet to sell any to the public. While they do list an item number on their website, and an MSRP of $319, they have no product actually on hand for sale at this time.

Here is what I would suggest... I can go to SPEC and order a large number of Yaris Flywheels, and we can hold an NST GB for said flywheels at a nice discount. I know a few of you have already expressed interest, I hope you're still interested. With enough interest, I think we can do this at a price of under $300 per flywheel.

Any takers for this idea?

[mikenacarato]

yes in a month or so

[1NZYaris1]

Just curious what sort of weight differrance are we talking about, does
anyone know,, any chance that spec has put this to a dyno test.

[Jerkratt]

moneys tight but u know i would be down

[pinoypizzaboy]

is it true that lightweigt flywheel is bad for a turbo setup? I think Ive read it somewhere here.

[mikenacarato]

my friend has a turbo car with a lightweight flywheel...no issues.

[thebarber]

Originally Posted by 1NZYaris1

Just curious what sort of weight differrance are we talking about, does
anyone know,, any chance that spec has put this to a dyno test.

you wont see any HP difference on a dyno....but it allows the engine to hit redline sooner in real life....

here's a dyno of my XRS vs another guys xrs w/ the same mods....he puts down more HP than i did, but you can see the graph is vs time and i have a fidanza flywheels (was 6.5lbs vs 13lb stock, iirc)

[cali yaris]

both my turbo cars have lightweight flywheel, including the Yaris - love it.

[tk-421]

I'm definitely interested. Keep us in the loop, Mike!

[NonStopTuning]

Originally Posted by 1NZYaris1

Just curious what sort of weight differrance are we talking about, does
anyone know,, any chance that spec has put this to a dyno test.

We would be talking about roughly 30% weight reduction compared to the OEM Toyota unit.

There are no dynos, but the concept is very similar to our lightweight pulley kits. And A LOT of you on these forums are very familiar with NST Pulleys. Weight reduction in the rotating assembly leads to better power and torque transfer to the wheels, better acceleration, better throttle response, and even better fuel economy.

[NonStopTuning]

Originally Posted by cali yaris

both my turbo cars have lightweight flywheel, including the Yaris - love it.

Thank you Garm. Turbocharged cars do very well when you reduce weight in the rotating assembly.

As I stated before, we have used SPEC units in our drift cars... Turbo S13 240SX and Turbo AE86 Corolla.

If lightweight flywheels were a bad idea you wouldn't see so many companies building them for cars like the EVO, STI, etc.

[NonStopTuning]

Anyone else?