Question about flywheel...

1_Stealth_Z · 08-02-2013, 04:12 PM

I'm about to upgrade my clutch and I'm just curious if getting a light weight fly wheel is worth it. Through the research I've done, I've learned that it may reduce driveability on a daily driver and I'm wondering if this is the case on our cars and if so or if not what is the best flywheel to go with on a daily driver. I am boosted and pushing the 500whp mark so what gains can I expect to see? Thanks for the help.

Chuck33079 · 08-02-2013, 05:06 PM

It'll rev faster. It'll also be loud and stall out much easier. It's a mixed bag.

Felix 808 · 08-02-2013, 06:47 PM

Quote:

Originally Posted by 1_Stealth_Z

boosted and pushing the 500whp mark so what gains can I expect to see? Thanks for the help.

I wouldn't muck with it. You should already spool the motor up with no problem, why would you want less drive-ability

1_Stealth_Z · 08-02-2013, 06:54 PM

Quote:

Originally Posted by Felix 808

I wouldn't muck with it. You should already spool the motor up with no problem, why would you want less drive-ability

that's kinda what I was thinkin but im more curious about the gains and im not too enthused about the extra noise either but im just checkin to see what other people are saying and get advice from people that have a lightened flywheel.

Felix 808 · 08-02-2013, 07:03 PM

Yeah you'll gain a few horse, but would you be able to put it on the ground. I'm sure you can spark the tires pretty good anytime right now

If so, that is really power you can't use.

Chuck33079 · 08-02-2013, 07:27 PM

It's not really a power thing. It just makes the motor more responsive. I love mine, but there are drawbacks.

Infidel · 08-02-2013, 09:06 PM

This is the set-up I got from ZSpeed and what I paid. The flywheel is about 10 lbs lighter and seems to have no drivability issues at all.

07+ HR/VHR 350Z/370z/G35/G37 HD slave kit 309.00
Nissan 370Z Clutch master cylinder 110.00
South Bend HR/VHR Flywheel 499.00
SOUTH BEND STAGE 3 Dual Friction 550.00

KORRUPT · 08-02-2013, 09:13 PM

Quote:

Originally Posted by Infidel

This is the set-up I got from ZSpeed and what I paid. The flywheel is about 10 lbs lighter and seems to have no drivability issues at all.

07+ HR/VHR 350Z/370z/G35/G37 HD slave kit 309.00
Nissan 370Z Clutch master cylinder 110.00
South Bend HR/VHR Flywheel 499.00
SOUTH BEND STAGE 3 Dual Friction 550.00

I got the same kit. I daily drive mine all year and the only thing I notice is a bit of chatter if I take off in second at a low rpm. I do like the faster engine response.

Infidel · 08-02-2013, 09:20 PM

Quote:

Originally Posted by KORRUPT

I got the same kit. I daily drive mine all year and the only thing I notice is a bit of chatter if I take off in second at a low rpm. I do like the faster engine response.

I never take off in second but I do hear a little chatter if I don't have enough R's taking off in 1st. As far as the engine response...I don't notice anything. To me the car is slow. I'm not complaining because I knew this when I bought the car, I just wish my MHI kit would get here before I go nuts.

Baer383 · 08-02-2013, 09:55 PM

Quote:

Originally Posted by Chuck33079

It'll rev faster. It'll also be loud and stall out much easier. It's a mixed bag.

Quote:

Originally Posted by Felix 808

I wouldn't muck with it. You should already spool the motor up with no problem,why would you want less drive-ability

KERMIT · 08-02-2013, 10:03 PM

T=I*alpha

If you can determine the moment of inertia difference between the two flywheels then the increased torque during acceleration can be calculated quite easily.

Basically, it helps most in first gear and the influence decreases as you vehicle gets to higher speed.

KERMIT · 08-02-2013, 10:15 PM

Sorry, I realize forums and (actual) physics don't mix well.

In that case, it will be hella tight, yo!

1_Stealth_Z · 08-02-2013, 11:08 PM

Hella tight...that's what im goin for lol. If the gains aren't that noticeable then I really not that worried about it other than being able to say "yea I got a light weight flywheel" and when people ask why I can be like

08-02-2013, 04:12 PM	#1 (permalink)
1_Stealth_Z Base Member Join Date: Jan 2012 Location: Savannah GA Posts: 117 Drives: 09 PG 370Z 6MT Rep Power: 13	Question about flywheel... I'm about to upgrade my clutch and I'm just curious if getting a light weight fly wheel is worth it. Through the research I've done, I've learned that it may reduce driveability on a daily driver and I'm wondering if this is the case on our cars and if so or if not what is the best flywheel to go with on a daily driver. I am boosted and pushing the 500whp mark so what gains can I expect to see? Thanks for the help. __________________ STS Turbo \|Turbo Smart \| Z1 34 row \| StopTech \| Hawk \| Walbro \| Avant Garde M310 \| Z1 Test Pipes \| Swift Spec-R \| Kenwood Excelon \| JL \| VIS \|PLASTI-DIP \| Oracle

08-02-2013, 05:06 PM	#2 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	It'll rev faster. It'll also be loud and stall out much easier. It's a mixed bag. Megan370z likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

08-02-2013, 07:03 PM	#5 (permalink)
Felix 808 A True Z Fanatic Join Date: Oct 2011 Location: Camarillo, CA Posts: 1,063 Drives: 2011 PW/Grey T/S 7AT Rep Power: 2806	Yeah you'll gain a few horse, but would you be able to put it on the ground. I'm sure you can spark the tires pretty good anytime right now If so, that is really power you can't use. __________________ Semper Fi Μολὼν λαβέ

08-02-2013, 07:27 PM	#6 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	It's not really a power thing. It just makes the motor more responsive. I love mine, but there are drawbacks. DEpointfive0 likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

08-02-2013, 10:03 PM	#11 (permalink)
KERMIT Enthusiast Member Join Date: Apr 2012 Location: Republic of Wadiya Posts: 301 Drives: Ms. Daisy Rep Power: 13	T=I*alpha If you can determine the moment of inertia difference between the two flywheels then the increased torque during acceleration can be calculated quite easily. Basically, it helps most in first gear and the influence decreases as you vehicle gets to higher speed. __________________ Steering wheel with Z emblem, keyless entry, 3.7L with dual overhead cams, am/fm radio, ABS brakes, windshield, air in tires

08-02-2013, 09:06 PM	#7 (permalink)
Infidel Enthusiast Member Join Date: Mar 2013 Location: Central Florida Posts: 457 Drives: 2013 GM 6MT Rep Power: 14	This is the set-up I got from ZSpeed and what I paid. The flywheel is about 10 lbs lighter and seems to have no drivability issues at all. 07+ HR/VHR 350Z/370z/G35/G37 HD slave kit 309.00 Nissan 370Z Clutch master cylinder 110.00 South Bend HR/VHR Flywheel 499.00 SOUTH BEND STAGE 3 Dual Friction 550.00

08-02-2013, 10:15 PM	#12 (permalink)
KERMIT Enthusiast Member Join Date: Apr 2012 Location: Republic of Wadiya Posts: 301 Drives: Ms. Daisy Rep Power: 13	Sorry, I realize forums and (actual) physics don't mix well. In that case, it will be hella tight, yo! 1_Stealth_Z likes this. __________________ Steering wheel with Z emblem, keyless entry, 3.7L with dual overhead cams, am/fm radio, ABS brakes, windshield, air in tires

08-02-2013, 11:08 PM	#13 (permalink)
1_Stealth_Z Base Member Join Date: Jan 2012 Location: Savannah GA Posts: 117 Drives: 09 PG 370Z 6MT Rep Power: 13	Hella tight...that's what im goin for lol. If the gains aren't that noticeable then I really not that worried about it other than being able to say "yea I got a light weight flywheel" and when people ask why I can be like __________________ STS Turbo \|Turbo Smart \| Z1 34 row \| StopTech \| Hawk \| Walbro \| Avant Garde M310 \| Z1 Test Pipes \| Swift Spec-R \| Kenwood Excelon \| JL \| VIS \|PLASTI-DIP \| Oracle

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