FS: JUN FLYWHEEL

1957 Views 20 Replies 6 Participants Last post by Z350Lover, Apr 20, 2005

Z350Lover

Discussion Starter · Apr 15, 2005

Hello fellows,

I have my light weight Chrome-molybdenum steel forged 1 piece JUN flywheel for sale..... the condition is in PERFECT condition, no burn mark at all as I drive quite gentlely on the car... the weight of the flywheel is 6.5KG and it revs very fast!

You will not need to set the idle any higher for this mod as when nissan installed this piece for me, they said they did not need to change anything and it drives perfectly.

This flywheel does not create much noise as the nismo flywheel as I noticed, and it revs a lot faster than nismo/stock flywheel.

I am selling it for AUD 450, negotiable still... only had it for around 4000km...

Now.. come to the reason on why I sell this.... I SERIOUSLY would not want to sell this piece at all as I LOVE how it revs and am starting to miss how it revs too... As you guys all know that I am using Motec computer to accommandate with my Nismo S-tune engine... and sadly that MoTeC computer cannot be able to get a nice idle tuned up with this light weight flywheel as it will definitely require a lot of time and tuning inputs... so I swapped it out for the heavier one and the motec is working nicely with the heavy flywheel now... This flywheel works nicely with the standard ECU (even with standard ECU + unichip) because the standard ECU is designed and tuned very well by nissan team (spent millions of money already)... therefore, I decided to go for the heavier piece to get the nice idle with those aggressive cams....

PM me if you are interested in this piece and I will post a photo or two soon!

cheers,

richie

1 - 20 of 21 Posts

davidm

· #2 · Apr 16, 2005

I have my light weight Chrome-molybdenum steel forged 1 piece JUN flywheel for sale

Is this the one you had in your car when I drove it? If so then it made for beutifull gear-changes.

therefore, I decided to go for the heavier piece to get the nice idle with those aggressive cams.

What flywheel did you get, and how heavy is it? Idealy I'd like one that is around 10 - 12kg.

db350z

· #3 · Apr 17, 2005

HI david why you want a Flywheel that weight between 10-12 kg? can you explain why you don't want to go lighter?

Cheers

scathing

· #4 · Apr 17, 2005

Words can't express how interested I am.

PM sent.

davidm

· #5 · Apr 17, 2005

HI david why you want a Flywheel that weight between 10-12 kg? can you explain why you don't want to go lighter?

For me the 6.5kg one is too light as it makes it really easy to stall the engine when getting off the line. It becomes almost race-car like ... which some people will like ... I had a clutch like that in the S2000, but I would not want it again.

So I would like the car to still be easy to get off the line, but also want the revs to fall quicker when the gearbox is dissengaged. The 6.5kg does a brilliant job of making the revs fall quickly, while the OME ~25kg one is just way too slow. Therefore I'm thinking (and hoping) that one that weights 10 - 12kg will give me a good compromise.

scathing

· #6 · Apr 17, 2005

David - do you mean 10-12lbs?

As far as I know, the OEM one is around 30lbs, not 30kg.

db350z

· #7 · Apr 17, 2005

I guess the nismo one is for you David

Scathing i think the OEM flywheel weight about 20kg+ i can't remember exatly and Nismo Flywheel only 20-25% lighter than OEM one

Z350Lover

Discussion Starter · #8 · Apr 18, 2005

[/quote]

PM sent back!

davidm

· #9 · Apr 18, 2005

David - do you mean 10-12lbs? As far as I know, the OEM one is around 30lbs, not 30kg.

I was pretty sure that the OME flywheel was aorund 25kg ... can someone confirm/correct that? I'd like one that is about 1/2 the weight so that's where the 10 - 12kg is from.

can't remember exatly and Nismo Flywheel only 20-25% lighter than OEM one

20 - 25% does not sound light enough for me ... I'd like one that is aorund 50% lighter. Do you know of one like that? ... thought, I'm in no rush.

Z350Lover

Discussion Starter · #10 · Apr 18, 2005

hi davidM,

the OEM flywheel is only around 13KG... not 25kg that heavy.. so half of the weight will be around 6 to 7 kg... which is 6.5kg = JUN flywheel's weight.

And yes... the Nismo one is around 28% lighter than the original flywheel, which is 9.83KG to be exact... and that's the one that i am using.... can tell you that... the car drives SOOO differently now, at least it revs A LOT slower than how it used to rev with the JUN one and somehow the noise is also louder than the JUN one too.. I am not too sure why though, probably due to the nismo multi-pieces design compare to JUN's chromoly forged 1 piece design?! But with the better idle with MoTeC computer (standard computer does not even need to raise the idle RPM, it idles perfectly, just like running on the stock item), we chose to stay with the heavier one...

cheers,

richie

Z350Lover

Discussion Starter · #11 · Apr 18, 2005

JUN Flywheel.... 1 piece..... Before using it and after using it... the surface is NIIICE... without any burnt marks!!! And also note that this flywheel is a forged item, so there was no balance needed, it was perfect straight from the factory...

Z350Lover

Discussion Starter · #12 · Apr 18, 2005

Rear of JUN flywheel

Z350Lover

Discussion Starter · #13 · Apr 18, 2005

Nismo flywheel... in the other hand.... a lot heavier than the JUN piece and it is a multiple piece design... they are joint together with those extra bolts from the back... you can see those from the pictures I took and also this nismo flywheel is balanced by punching an extra hole on the surface of the flywheel (outer edge, you can see there is one extra hole more than the JUN one)... and the stock one is even worse... will show you guys some pics soon...

cheers,

richie

mickyboy

· #14 · Apr 18, 2005

What is the rough cost to get the flywheel fitted???

Z350Lover

Discussion Starter · #15 · Apr 18, 2005

NOW.... it is the Stock item's turn now...

Multi-piece ugly design... with all the welding marks and pieces for the balancing purposes at the rear... and it is SOOOO HEAVY compare to the JUN piece... Also heard that this item is not re-surfaceable unlike both Nismo and JUN ones...

Anyway... here are some pics....

cheers,

richie

Z350Lover

Discussion Starter · #16 · Apr 18, 2005

[/quote]

It is around 200 to 250 dollars... it is a 2-3 hours work! And it can be done by yourself if you can host the car up... not that hard actually... but you need extra hands and the some wrench tool that can reach the bolts at the top of the gear box... other than that, all about disconnecting all the wirings, exhaust Y-pipe and also the CF drive shaft (better put mark on this piece before you pull it off, so you can align it back where it came off!)...

cheers,

richie

davidm

· #17 · Apr 18, 2005

the OEM flywheel is only around 13KG... not 25kg that heavy..

Thanks Richie ... I take it that you weighted the OME fly-hwele yourself. I think I got the 25kg figure from one of the BM DVDs, but I'm not sure.

so half of the weight will be around 6 to 7 kg... which is 6.5kg = JUN flywheel's weight.

Yeah, you're right if the OME is 13kg then I'd need one closer to 6.5kg to make the kind of difference that I'd be happy with. Though, for me the taking-off-from-idle behaviour was just too weak for my likeing. I know I'd get used to it just like I did with the clutch I put into the S2000, but I'd rather not have to.

the Nismo one is around 28% lighter than the original flywheel, which is 9.83KG to be exact... and that's the one that i am using

Maybe we can meet up one day again when you have the Nismo fly-wheel in there as I would like to see what the 9.83kg one feels like.

Nuff

· #18 · Apr 18, 2005

The 25kg is the weight of the clutch and flywheel.

scathing

· #19 · Apr 18, 2005

I got my weight figures from Performance Nissan Parts, who sell the Nismo and JUN flywheel (as well as an insanely light 7lb one).

Z350Lover

Discussion Starter · #20 · Apr 18, 2005

scathing:

pm sent back to you with all the details needed.

cheers,

richie

1 - 20 of 21 Posts

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