4AGZE Lightend Fly Wheel

[4AGTE]

Any information possible as i know nothing.
Is really light better or whats the go?

Thanks

[Dr-X]

you DONT want a lightened flywheel for any car that will be used on the street. There's no tangible inprovement that could possibly offset the disadvantages for street use.

[ChaosAD]

No good for a 4agze, wont rev any better cos of the s/c and run very well either.

[Monsterbishi]

No good for a 4agze, wont rev any better cos of the s/c and run very well either.

Rubbish, I use a NA 4AGE flywheel/clutch/plate on mine, which is a huge amount lighter than the factory 4agze setup and it runs great, gets the revs up quickly, acceleration is much better, overall, it's better!

The thing about engines, is that they're held back the most by the rotational mass, ie, anything that they have to spin to make themselve run, since there's a thing known as centrifugal mass, ie. what weighs 1kg when the engine is sitting turned off, will weigh in effect 100kg at 7000rpm.

[10k 20v]

I agree with JiNX on this one.
I myself have a superlight flywheel on my trueno (didn't care because not going to be street car for long) but noticed no drop in drivability.

[Dr-X]

A lightened flywheel affects drivability for no real gain. In saying it 'revs up quicker', who gives a crap how well it revs on the spot, if it's no quicker. And dont try to tell me a lightened flywheel is giving your car better 1/4 times.

Having a lightened flywheel can affect your cars idling characteristics, sometimes to a point of extreme frustration and uncomfortable driving. Aswell as that, you'll find launches much slower as the car bogs down when the clutch grabs. Your uphill driving can become a major hassle also, as the car loses a huge amount of uphill power.

Lightened flywheels just dont have any place on a street car or on the drag strip. It WILL decrease your 1/4 times, due to major bogging on launch.

[Bazda]

I think what u mean is that if u make it to light then yes it will effect the car real bad and make it go slower, also if it's to heavy then thats also not good.

A standard 4agze flywheel isnt to bad there prob wont be any gains at all making it lighter. As for my car i need that standard fly wheel to keep that rotational inertia when I hook the next gear. If it was any lighter I recon i would get lag into the next gear.

Usually for drag racing heavier is better.

[Drifter4ag]

my 4age + clutch setup was heavier than my 4agze+clutch setup

[kingcorolla]

the flywheel is heavy for a reason, and its to carry the engine through the dead strokes. this is why less rotating mass fukks up ure drivability.

[4AGTE]

Ok so basical a lightend fly wheel will kill bottom end and gain revability.
Right?

If so i have way to much tourqe and kinda want to kill a little bit of that for rev's.

Dose that make sense and will that work.

By to much tourqe i was starting in second at the drags and was still wheel spining way more than anyone else till about 90 in second. Dont ask about first.

[Dr-X]

By to much tourqe i was starting in second at the drags and was still wheel spining way more than anyone else till about 90 in second. Dont ask about first.

That sounds more like driver fault than too much torque. Believe me, there are people dragging much more powerful FWD cars than your, quite successfully.

I think what a lot of people fail to understand it that you cant 'get more torque and less power' or 'get more power with less torque'. People on this forum seem to think things like lightened flywheel and exhaust backpressure can affect one but not the other.

I've got some news for you people - the only way to increase torque without also proportionately increasing power is to either change your gear ratios, or change your piston stroke. Those are the two things that affect your torque. Stroke = torque, bore = power. They're proportioante to each other, ALL the time, and the only way to change this is with gearing.

So next time I hear someone saying the can get more torque qith better backpressure, or a smaller intake manifold, I'm gonna link them to this rant. I pains me to hear about people 'increasing low end torque' with special little mods. You can increase your cars response (power and torque) in the lower rev ranges, but you CANNOT change your cars torque without changing your gear ratios or engine stroke.

To answer your question, NO you cant reduce your torque by getting a lighter flywheel. If you're making comments like the one I quoted, I suggest you go and read a few books before making anymore modifications that will quite likely degrade your 1/4 times and drivability.

[RedMist]

Your going to lighten a 10 year plus old flywheel??? Good luck! Hope you have good medical insurance for the loss of your legs, personal liability insurance for those you hit with pieces of flywheel and your car insurance covers complete distruction based on modification.
And the plus side was?

If your going to do it, do it right, buy a new light flywheel.

If your attempting to remove rotating mass, why aren't you looking at tyres and wheels?

[4AGTE]

You can increase the troque of your car down low with more fuel and in doing this kill top end. You can also kill top end power and give more mid range/bottom end with adjustable cam pulleys. Their for this can work both ways. Do you care to explain this?
I could be wrong on this also


Answers to red mist. I was using a 15" road legal race tyre that was almost bald running 10psi and their isent much better tyres around than Falcon Azenus (mind the spelling) ST215. If you can sugest something else please tell me.
As for the fly wheel if i want a new one where can i get one from? That was kind of the half the reason for this post.
Also i used to have a 4age and i lightend the flywheel in that massively and no problems their other than it heating up and clutch sliping after a good as caining.
Im a noob to the flywheel thing but why dose it matter if you get the one you have machined?

[Mr Revhead]

TRD do flywheels, which i can supply

but i belive you only need one if you intend to run the bugger at high revs all the time, basiccly your looking at decreasing the mass the engine needs to turn, so it can help your engine rev better, and that can help 1/4 mile times, but on a road car i doubt youd notice. it also , as with all engine things, depends how good the original design is

if your problem is wheel spin a flywheel isnt going to help!
id be looking at, driver, tyres, and the suspension.

[Dr-X]

You can increase the troque of your car down low with more fuel and in doing this kill top end. You can also kill top end power and give more mid range/bottom end with adjustable cam pulleys. Their for this can work both ways. Do you care to explain this?
I could be wrong on this also

Did you read my post at all? No you cant increase your torque down low, at least not without also proportionately increasing your cars power output. You can produce better numbers in different rev ranges depending on how the car is set up, but you cant get better torque figures whilst maintaining or dropping horse power without changing your gear ratios.

As for killing top end/increasing bottom end with cam pulleys, I think you need to do your homework, because you can get different results from cam pulleys depending on how you set it up.

To put it simply - The only ways to disproportionately increase your torque is by changing the stroke length in your engine, or using a different gear ratio.These two things alone define your torque output compared with your power output.

[Mr Revhead]

or you could play with other aspects of the engine, such as intake design injector placement etc etc
but i think the point you are trying to make is changing the flywheel to alter the torque wont work, which is correct

[4AGTE]

ok give me a price on the TRD lightend fly wheel dude.
This is a race car and i dant car about anything under 4,000 rpm ever.


As for Dr-X
Dude you missed the whole point of this post man. If i have a lightend fly wheel this will kill bottom end will it not and help it in the high end rev's?
Torque and hp are directly linked and you canot change one with out the other being different right?
But you can change your tourqe/hp down low with cam gears/ fuel ratios.

Is this not right?

[IH8TEC]

[quote="4AGTE"]This is a race car and i dant car about anything under 4,000 rpm ever.

i like the way this man thinks

[Dr-X]

or you could play with other aspects of the engine, such as intake design injector placement etc etc
but i think the point you are trying to make is changing the flywheel to alter the torque wont work, which is correct

Read my post again, but pay attention this time.

If i have a lightend fly wheel this will kill bottom end will it not and help it in the high end rev's?
Torque and hp are directly linked and you canot change one with out the other being different right?
But you can change your tourqe/hp down low with cam gears/ fuel ratios.

Is this not right?

Correct, I'm just trying to bash out of peoples heads the idea of sacrificing power for torque at any particular rev range without changing drive ratios.

The point I'm trying to make is that statements such as "I'm trying to do this to increase my bottom end torque" are fundamentally impossible, unless you're talking about going to a different diff ratio.

[Bazda]

heavier flywheel woudl make it easier to launch, lighter one would make it alot more difficult.