finally ran 12's!!!

tyler20c · 02-19-2011, 07:07 PM

Quote:

Originally Posted by tranceformer

The motor rev's a lot quicker because a significant amount of weight was removed from the flywheel. It really wakes up the car. And as a result SRM works a lot better too. Not that expensive for the part itself, maybe $400 or so depending on which one you get. Only downsides are the noise at low rpm's & idle, that and it might be difficult or pricey to install because the transmission has to be dropped to install it.

What kind of noises does it make? and any idea on how expensive of an install?

Cmike2780 · 02-19-2011, 07:15 PM

Those are huge gains over stock for just the Berks hfc and flywheel. Were the primary gains due to the flywheel or HFC's? Did you do any runs with just the HFC's?

jnaut · 02-19-2011, 07:17 PM

rayray puttin it down 12.8's is awesome!!

tranceformer · 02-19-2011, 07:27 PM

Quote:

Originally Posted by tyler20c

What kind of noises does it make? and any idea on how expensive of an install?

at idle, its kinda same noise as stock just a little louder. maybe some buzzing (i guess thats the word?) in 1st & 2nd from idle to 1500 but not that big of deal IMO. Stock is a dual-mass flywheel that dampens all these noises but stock is also about 30lb.

The cost is about the same cost as a clutch job. It's a perfect mod to do if your clutch is toast, you save on labor.

Quote:

Originally Posted by Cmike2780

Those are huge gains over stock for just the Berks hfc and flywheel. Were the primary gains due to the flywheel or HFC's? Did you do any runs with just the HFC's?

My car has never been on a dyno, so I have no idea how much power each of the mods make. But I definitely think the flywheel registers more of a difference on the butt dyno than the HFC's.

I didn't do any runs with just the cats alone.

Quote:

Originally Posted by jnaut

rayray puttin it down 12.8's is awesome!!

yeah we're definitely lucky to have such a sticky track!

red6spd · 02-20-2011, 08:29 AM

A light weight flywheel had to be one of the best mods I ever did on my G20 and I'm sure it will b on the Z when I do it, but I only got 6400 miles so its probably going to be a while.

jnaut · 02-20-2011, 09:14 AM

Quote:

Originally Posted by red6spd

A light weight flywheel had to be one of the best mods I ever did on my G20 and I'm sure it will b on the Z when I do it, but I only got 6400 miles so its probably going to be a while.

haha did my flywheel @ 3200 miles!!

brian0128 · 03-06-2011, 12:02 PM

Congrats on the 12 second timeslip.

b1adesofcha0s · 03-06-2011, 01:50 PM

Congrats on the time!

If I'm correct, flywheel is only for manual transmissions? Is there something that would provide similar performance enhancements for a 7AT? I know 4.08 gears is DB option, but I DD my Z and spend most of my time on the highway, so I don't think I want to go that route.

Jordo! · 03-06-2011, 02:23 PM

Wow -- open dif too! Congrats!

Has anyone found any real advantage to having the LSD?

Quote:

Originally Posted by b1adesofcha0s

Congrats on the time!

If I'm correct, flywheel is only for manual transmissions? Is there something that would provide similar performance enhancements for a 7AT? I know 4.08 gears is DB option, but I DD my Z and spend most of my time on the highway, so I don't think I want to go that route.

Higher stall torque converter.

Having a tune so that the shift speed/firmness is tweaked (it's tunable with uprev).

jnaut · 03-06-2011, 07:17 PM

Quote:

Originally Posted by Jordo!

Wow -- open dif too! Congrats!

Has anyone found any real advantage to having the LSD?

Higher stall torque converter.

Having a tune so that the shift speed/firmness is tweaked (it's tunable with uprev).

He has the sport pkg

Jordo! · 03-06-2011, 08:25 PM

Quote:

Originally Posted by jnaut

He has the sport pkg

Ohhhh... I thought he said base model, so I assumed, no sport pack

So are all the faster times from folks with a LSD then, OEM or otherwise?

chuckd05 · 03-06-2011, 03:29 PM

is your track level ? lol

spearfish25 · 03-06-2011, 10:32 PM

Probably doesn't matter for drag racing. The limited slip comes into play much more when you're powering out of corners and the rear tires are unequally weighted.

chuckd05 · 03-06-2011, 11:33 PM

I ran my 12.9 on an open diff. Havent went back with the 4.08s and vlsd

02-19-2011, 07:15 PM	#2 (permalink)
Cmike2780 A True Z Fanatic Join Date: Jun 2010 Location: Long Island Posts: 5,059 Drives: slowwww Rep Power: 30	Those are huge gains over stock for just the Berks hfc and flywheel. Were the primary gains due to the flywheel or HFC's? Did you do any runs with just the HFC's? __________________ [09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R] [ArchitTEK Photography]

02-19-2011, 07:17 PM	#3 (permalink)
jnaut A True Z Fanatic Join Date: Dec 2009 Location: wpb, fl Posts: 1,146 Drives: 09 370z Rep Power: 18	rayray puttin it down 12.8's is awesome!! __________________ Best 1/4 mile 12.24 Best mph 114.5_______

02-20-2011, 08:29 AM	#5 (permalink)
red6spd A True Z Fanatic Join Date: Apr 2010 Location: Long Island NY Posts: 3,277 Drives: 2010 Z Coupe M6 SPT Rep Power: 22	A light weight flywheel had to be one of the best mods I ever did on my G20 and I'm sure it will b on the Z when I do it, but I only got 6400 miles so its probably going to be a while. __________________ 2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness. ???Whp ???WTQ (Will find out come spring time)

03-06-2011, 01:50 PM	#8 (permalink)
b1adesofcha0s A True Z Fanatic Join Date: Jan 2011 Location: MD Posts: 40,963 Drives: HypeTrain Choo Choo! Rep Power: 142	Congrats on the time! If I'm correct, flywheel is only for manual transmissions? Is there something that would provide similar performance enhancements for a 7AT? I know 4.08 gears is DB option, but I DD my Z and spend most of my time on the highway, so I don't think I want to go that route. __________________ Project: b1adeZmobile (2009 370Z) \| Uprev Tune by AAM Competition \| Berk Exhaust Project: b1adeZmobile 2.0 (2014 C7 Z51) \| Corsa Xtreme Exhaust

03-06-2011, 03:29 PM	#12 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	is your track level ? lol __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

03-06-2011, 12:02 PM	#7 (permalink)
brian0128 Base Member Join Date: Feb 2011 Location: Crofton, MD Posts: 249 Drives: 09 370Z Sport 6MT Rep Power: 15	Congrats on the 12 second timeslip.

03-06-2011, 10:32 PM	#13 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	Probably doesn't matter for drag racing. The limited slip comes into play much more when you're powering out of corners and the rear tires are unequally weighted. __________________ 2013 Cadillac V-Wagon, RIP Z

03-06-2011, 11:33 PM	#14 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	I ran my 12.9 on an open diff. Havent went back with the 4.08s and vlsd __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

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