JUN Flywheel

Hey guys, just in the process of researching billet flywheels and after viewing old threads decided to contact Perfect Run for a price on the JUN. From what I can tell these are a lot cheaper than previous :) - I'm just about to dent the plastic some more !! :p - Now before I order just checking that no one is going to post one up for sale tomorrow or anything!!

This is their quote to me today - shipping cost is to SA so probably cheaper to Eastern states.



Hi Matt,Below is price information as your request.

For K11 March with CG13DE engine
* JUN Light Weight Flywheel (Item Code: 2001M-N027): 34100Yen (= currently A$359)
* Estimated shipping cost from Japan to your address in Australia: approximately A$90

To order the product, please use one of the order forms on our website.

Regards,

Taki
Perfect Run
sales@perfectrun.com.au

great product. i ordered from perfect run and mine came super fast.

and that is cheap.

Fvkc me!!

I paid $700 in 2003... And that was during a bulk buy too..

Was also one of the best mods I ever did, make the car so much fun to drive and it revved quicker than my motorbike does now

Sean

Well if it's good enough for the likes of you two I'm convinced. Thanks :D

fuck me i think i might look into one of these. Do they really make that much difference.

Probably better value than buying lightweight wheel nuts for $200 a set!!

Well now is the time for me as I am replacing the box in Charlotte. And with the pressure of now owning Yom's old girl I know anything I do to her needs to be be decent, and that means no lightening of the stocky Ha ha!

Mind you $90 for postage seems high :( but all over cost is less than I expected.

$90 high! thats cheap.. don't forget its from japan!

the shipping cost is fine.

Must be my Scottish blood showing! Just had one of the office girls check with our courier company and were quoted $130.

Right again Turbo!!

if i had the money atm, i'd get you 2 order one for me at the same time... but i'm poor right now.. :(

Yes,i'd take 1 to if i was cashed up,there cheap because the Aussie dollar is so strong at the moment.

sikk11... one of the best mods u can do... I currently have a lightened stocky and it is a huge improvement on stock, in performance and throttle response... I am putting my light flywheel in soon myself so should see a another jump....;

its crap to what it was just before christmas...

Got quoted the same amount in yen about 6 months ago, but because of the conversion rate at the time, was going to be cheaper.

Should probably think about getting one from perfect run..

---dens

eerr.. isn't that where he's getting it from?

fred

gotta agree with you, a lightened stock is a good option, got mine down to 3kg
http://i44.photobucket.com/albums/f47/TomEA/PICT2010.jpg
was well "tested" in my super s for 6 yrs

frank

man frank...that's amazing.. how'd it balance with all the holes or did you get it CMC'd?

Your point? :P

That's a very interesting flywheel there frank.. Could all those holes in the contact area cause a lack of grip surface for the clutch to .. well grip onto? Hence why most lightweight ones around are just the original ring gear + chromoly centre or full chromoly flywheel with a flat surface for the clutch.

---dens

dens

there are no holes on the friction area


fred

it was skimmed at a local machine shop, then i attacked it with a drill, then "balanced" it with a bearing in the middle and spun and chalked it (very crude but surprisingly accurate,..... now where did i put my stetson ? )

There's also a ultralight JUN flywheel, which most people miss these days, part number is 2010M-N027, takes the weight down from 4.3kgs to 3.6kgs. Depends on your requirements but it's always good to have the option as the U/L flyweels were made for a lot of cars but not the March, now they do them.

SSUK: Any idea on cost difference for the ultra lightweight and the regular JUN lightweight?

Also, would it generally be best to find a happy medium between incredibly quick revving and the ability to keep enough momentum in the engine so that you don't lose all your revs when off the power?

---dens

Hey dens - I have emailed the guy at Perfect Run to find out the price. I'll post this up once I know. :)

how very very very interesting.. should be cheaper cause there's less material used :D !!

And the postage should be less too, ha ha ;)

Nice one SSUK - did more cost research and this is the deal. Now I don't know which one to choose (price is near as dammit though so cost is no prob).

Any of you Wise Micra Masters got some input on which one and why?

cheers, Matt.


3.6 kg
For K11 March with CG13DE
* JUN Light Weight Flywheel (Item Code: 2010M-N027): 38900Yen (= currently A$410)
* Estimated shipping cost from Japan to your address in Australia: approximately A$80


4.3 kg
For K11 March with CG13DE engine
* JUN Light Weight Flywheel (Item Code: 2001M-N027): 34100Yen (= currently A$359)
* Estimated shipping cost from Japan to your address in Australia: approximately A$90

if its staying na.. id go the 3.6kg one and have it lightened some more... presonally wouldn't worry about this momentum shit.. i'm either into it, or i'm not. when i get some coin, i'll definately be going with the 3.6kg version for my na.. thanks for the research

What about turbo'd engines? Still stick with the 3.6KG one or go with the 4.3KG?

---dens

The lighter the better I say. Might make gear changes a little less smooth but most people need a neck brace to ride with me anyway! As long as there's enough metal to hold it together. Only other downside to a lighter one is less metal to act as a heat sink to reduce the chance of the clutch overheating.

remember if you go to light you will loose to much torque

Dont wanna take away from the Jun but while on the subject of lightweight flywheels...i bought a few from www.alloyrace.com for a MSC group buy in the UK...very nice product (about 3.2kg's iirc), and i highly recommend the company. :)

http://s155.photobucket.com/albums/s309/runaway_robot/?action=view¤t=Solarice-Rev.flv

http://s155.photobucket.com/albums/s309/runaway_robot/?action=view¤t=Solarice-Exhaust-NA.flv

Gives you an idea of the engine response :)

but whichever lightweight flywheel you choose you'll notice the difference.

the only downside i found, was i kept stalling the damn car !

Solarice - I think the ARC flywheels were the ones sold through Datrats when they were around. This is the one I'm using. The alloy is meant to offer better heat dissipation as well as being lighter than steel.

hey nissanmania

errol got his done @ alloy race..

this is an OLD reference to the site
http://www.alloyrace.com/products_flywheels.php

but yeah there was a discussion on this a few years ago where it was cheaper than datrats to get the same product

almost the same as ARC :)

i still think you can go too light with a flywheel.

i thought the JUN product was great..didnt experience any lighter ones

fuck me, that needle moves fast! the lightest flywheel all the way boys! i'd just have a flex plate if i could

.... errr, torque? there's none to begin with, how can you lose something you don't have? :)

Ok now this may seems silly but one consideration for me is this: My car is a daily driver and on the drive home I go up a long steep section on the Freeway. If the traffic is clear I can get up to 110 (or 120:p) but when I catch up to a slower vehicle I obviously have to slow down until I can over take. My question is when I drop back a gear and floor it to gain speed again will the lighter flywheel improve my excelleration back up to the speed limit?

yes.... (you'll say, Why don't they come like this from the showroom floor)

what he said, but you'll also slow down alot quicker too.... i think you'll find, once you go to a lighter flywheel, you'll never regret it.

you're all mentioning NA setups here, how does it go on a turbo setup? same thing?

same thing, but again, will drop revs quicker also. i was talking to a clutch guru when i had my s14.. he said not to lighten the flywheel any more, i ended up getting an os giken twin plate kit for it, which was about 3kg lighter.. heaps better response, came on boost quicker etc... didn't really see any down side at all in that car

yeah thats what i thought when i was comparing the pictures, though i never actually asked ARC if they supplied datrats :)



lol yeah thats only on about 1/2 to 3/4 throttle aswell.

im happy with the response of it (who would'nt lol) and as im currently setting the car up for a supercharger i figured any downside like dropping revs etc, would quickly evaporate anyway...once my foot was planted lol.



i also agree with that...grin factor alone, lol