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Strength Of V35 6 Speed Manual Gearbox

R33_Dude
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R33_Dude Rising Star

R33_Dude

Posted
Posted

I must firstly confess I have little knowlege of the V series of skylines - so I come in search of advice.

A friend of mine has just picked up his 2004 V35 350GT coupe with the six speed manual and is looking at the twin turbo and supercharger kits that are available.

One of the big questions though is how strong the stock gearbox is, I have searched for information and found vague torque limits. Does anyone know exactly how strong the gearboxes are - reports tend to vary wildly. 

Any info or links would be appreciated.

superspit Mentor

superspit

Posted
Posted

Having busted one (6M) within weeks of purchase....and now having a new one...I know this....they are heavy bloody things, even when on a trolley! lol!

They are noisy/rattly bloody things too!...but they're strong, and should handle nominal power upgrades.....my mechanic agrees.

As for that diff?.....pffffft...who knows?

Hardly 'tech' words,..but hey, who gives a faaark!

Stephen Thorpe Proficient

Stephen Thorpe

Posted
Posted
Having busted one (6M) within weeks of purchase....and now having a new one...I know this....they are heavy bloody things, even when on a trolley! lol!

They are noisy/rattly bloody things too!...but they're strong, and should handle nominal power upgrades.....my mechanic agrees.

As for that diff?.....pffffft...who knows?

Hardly 'tech' words,..but hey, who gives a faaark!

Strong... but you busted it... can you please explain a bit further?

What went wrong and how do you imagine that happened?

Was a new one costly?

180 wanabe Proficient

180 wanabe

Posted
Posted
Strong... but you busted it... can you please explain a bit further?

What went wrong and how do you imagine that happened?

Was a new one costly?

7000rpm launches with slicks on, flat changes etc :D

superspit Mentor

superspit

Posted
Posted
7000rpm launches with slicks on, flat changes etc :D

yes.....a little something like that...

and (incorrectly) attempting to engage reverse (by accident) at freeway speeds...(successfully).

  • 1 month later...
prdreilly Contributor

prdreilly

Posted
Posted
yes.....a little something like that...

and (incorrectly) attempting to engage reverse (by accident) at freeway speeds...(successfully).

My 04 model has a feature to prevent engaging reverse. You have to push the gearknob down to allow reverse to be engaged, doesn't yours have that?

worldwalker Contributor

worldwalker

Posted
Posted

I just cringed reading that. OUCH! Reading something like that to me was like imagining getting kicked in the crotch.

I heard a similar story from an indo driving a DC5R downshifting from 6th to 4th but was a bit too excited and hit 2nd... rev, bang.

On another note a bit of chattering is normal from these boxes? And a slight chatter when turning the ignition off? Its def the box because there is nothing with the clutch in.

scathing Grand Master

scathing

Posted
Posted
One of the big questions though is how strong the stock gearbox is, I have searched for information and found vague torque limits.

There's a dude trying to sell a 535rwkW V35 on Carsales (Carl). See what he's done to his box, because he's had that setup for a while and he hasn't grenaded the gearbox yet.

The 03 boxes have a reputation for breaking (but that's even with NA bolt-on specs) but there are guys who've gone FI and tracked their cars (250-320rwkW) for a few years without breaking them. It sounds more like dodgy QC rather than an inherent design fault.

  • 2 weeks later...
worldwalker Contributor

worldwalker

Posted
Posted
I just cringed reading that. OUCH! Reading something like that to me was like imagining getting kicked in the crotch.

I heard a similar story from an indo driving a DC5R downshifting from 6th to 4th but was a bit too excited and hit 2nd... rev, bang.

On another note a bit of chattering is normal from these boxes? And a slight chatter when turning the ignition off? Its def the box because there is nothing with the clutch in.

anyone?

scathing Grand Master

scathing

Posted
Posted
I heard a similar story from an indo driving a DC5R downshifting from 6th to 4th but was a bit too excited and hit 2nd... rev, bang.

A mate of mine was telling me about a BMW track day his boss went to. Flying down the main straight of EC in an M3, tried to go from 4th to 3rd to prepare for Turn 1, hit the gate and pushed harder, and found 1st.

On another note a bit of chattering is normal from these boxes? And a slight chatter when turning the ignition off? Its def the box because there is nothing with the clutch in

I only got symptoms similar to what you're describing when I fitted a JUN flywheel in my first box. Stock flywheel/clutch it didn't do it.

I did a Nismo clutch/flywheel when I fitted a second 'box, and it's the same now. A little rattle on idle with the clutch out, which stops when I clutch in. It only happens when the driveline is warm though.

I'm not sure if the Nismo flywheel is dual mass or not, but I heard it was. That might be the flywheel for a single plate clutch instead though.

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