Stillen pulley review

indyn · 11-14-2011, 03:43 PM

Quote:

Originally Posted by wstar

That's a whole other argument, which has been debated at length elsewhere on this and every other car forum on the planet, largely inconclusively. Given the evidence at hand for our cars, I'd say whether dropping one in is a good idea really depends on your situation. As a general guideline: if you have plans to go Forced Induction it's probably best to not mess with the pulley (SC pulley size needs adjusting, and SC/TC both are adding a lot of stress and doubt to the harmonics arguments, and at that power range the benefits get even more marginal), and if you want your mods to be easily removable it's probably best to not mess with the pulley either (the Al ones slowly weld onto the crankshaft). Enough of them have been (correctly installed) on NA engines for plenty of hard miles without incident though. If they were causing any serious mechanical balancing issues, we'd have seen destroyed crankshaft bearings by now.

what he said...its like driving a car with unbalanced wheels; it'll run but in time it'll ruin your suspension parts as well.

O&G · 11-14-2011, 05:44 PM

Quote:

Originally Posted by wstar

That's a whole other argument, which has been debated at length elsewhere on this and every other car forum on the planet, largely inconclusively. Given the evidence at hand for our cars, I'd say whether dropping one in is a good idea really depends on your situation. As a general guideline: if you have plans to go Forced Induction it's probably best to not mess with the pulley (SC pulley size needs adjusting, and SC/TC both are adding a lot of stress and doubt to the harmonics arguments, and at that power range the benefits get even more marginal), and if you want your mods to be easily removable it's probably best to not mess with the pulley either (the Al ones slowly weld onto the crankshaft). Enough of them have been (correctly installed) on NA engines for plenty of hard miles without incident though. If they were causing any serious mechanical balancing issues, we'd have seen destroyed crankshaft bearings by now.

bulls eye, I totally agree.

@617DRFT_370z · 10-04-2015, 04:44 PM

Changing ur crankshaft pulley to a 6069 aerospace grade billet aluminum over the shock heavy cast steel one is worth the effort. Do you professionally tune cars using uprev osiris? Oh you dont? Then how would u know if u needed a tune for your pulley? Thanks for playing. No, you do not need a tune for a pulley. It is not affecting a/f ratio n it is not changing the load on the motor. Its just spinning faster. And yes, it may be "3-5hp, not worth the effort" (actually i dynod n found a gain of 6hp 4trq to the wheels) well lemme tell you something. All the mods ive done to add "3-5hp" adds up quick, real quick. I dont forum hunt nor do i roast forum dbags, but all you "i know everything" kids on here are the reason why nobody does pulleys, intake manifolds, headers. I have to put a stop to this, your all fools.
Theres a reason why my cars the faster n/a vhr in Boston n why most guys struggle to hit 300hp with full bolts ons.

Chuck33079 · 10-04-2015, 05:28 PM

They're all fools, but you're the one responding to a thread that's been dead since 2011.

GZ3 · 10-04-2015, 06:17 PM

Lol

I think a quality pulley is def worth it.

Bulletz4break · 10-04-2015, 06:59 PM

Quote:

Originally Posted by @617DRFT_370z

Changing ur crankshaft pulley to a 6069 aerospace grade billet aluminum over the shock heavy cast steel one is worth the effort. Do you professionally tune cars using uprev osiris? Oh you dont? Then how would u know if u needed a tune for your pulley? Thanks for playing. No, you do not need a tune for a pulley. It is not affecting a/f ratio n it is not changing the load on the motor. Its just spinning faster. And yes, it may be "3-5hp, not worth the effort" (actually i dynod n found a gain of 6hp 4trq to the wheels) well lemme tell you something. All the mods ive done to add "3-5hp" adds up quick, real quick. I dont forum hunt nor do i roast forum dbags, but all you "i know everything" kids on here are the reason why nobody does pulleys, intake manifolds, headers. I have to put a stop to this, your all fools.
Theres a reason why my cars the faster n/a vhr in Boston n why most guys struggle to hit 300hp with full bolts ons.

No one does these mods because these cars don't make power. Cost vs reward isn't worth it. Anyone that spends thousands to make 20whp is a fool.

1slow370 · 10-05-2015, 01:00 AM

I had an aluminum underdrive pulley, but it was just a side effect of having an ati damper and drysump drive on there too.

Edit: also worthy to note it did have a steel hub since ati said that the aluminum hubs shear off at high rpm

10-04-2015, 04:44 PM	#18 (permalink)
@617DRFT_370z Base Member Join Date: Jun 2013 Location: Boston MA Posts: 5 Drives: 2013 370z Sport Rep Power: 11	Dont talk if you dont know what your talking about Changing ur crankshaft pulley to a 6069 aerospace grade billet aluminum over the shock heavy cast steel one is worth the effort. Do you professionally tune cars using uprev osiris? Oh you dont? Then how would u know if u needed a tune for your pulley? Thanks for playing. No, you do not need a tune for a pulley. It is not affecting a/f ratio n it is not changing the load on the motor. Its just spinning faster. And yes, it may be "3-5hp, not worth the effort" (actually i dynod n found a gain of 6hp 4trq to the wheels) well lemme tell you something. All the mods ive done to add "3-5hp" adds up quick, real quick. I dont forum hunt nor do i roast forum dbags, but all you "i know everything" kids on here are the reason why nobody does pulleys, intake manifolds, headers. I have to put a stop to this, your all fools. Theres a reason why my cars the faster n/a vhr in Boston n why most guys struggle to hit 300hp with full bolts ons. Spartan 1771 and kinitox like this. Last edited by @617DRFT_370z; 10-04-2015 at 04:44 PM. Reason: Forgot to say something

10-04-2015, 05:28 PM	#19 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	They're all fools, but you're the one responding to a thread that's been dead since 2011. GZ3, cv129, clkio and 1 others like this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

10-04-2015, 06:17 PM	#20 (permalink)
GZ3 A True Z Fanatic Join Date: Dec 2009 Location: SATX Posts: 3,296 Drives: Z Rep Power: 21	Lol I think a quality pulley is def worth it. __________________ 09 GT-R 12' 370Z 7AT HANDED DOWN 12'+13' 5.0 SOLD

10-05-2015, 01:00 AM	#22 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	I had an aluminum underdrive pulley, but it was just a side effect of having an ati damper and drysump drive on there too. Edit: also worthy to note it did have a steel hub since ati said that the aluminum hubs shear off at high rpm __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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