4 best ways to improve traction with boosted Z

critical · 03-12-2014, 10:12 AM

Quote:

Originally Posted by R3drckt09

So I'm going forced induction and I'm curious if anyone knows for sure, will a 350z AT differential (with VLSD) fit my base MT 370Z? I want the 3.3 gears and also anything but my open diff, and used 350 parts are way cheaper and easier to come by

yes it will fit

Chuck33079 · 03-12-2014, 10:14 AM

There's a good chance a VLSD from a 350 will be shot. They do wear out over time. Be a shame to go through all that effort and find out it's toast.

critical · 03-12-2014, 10:15 AM

Quote:

Originally Posted by Chuck33079

There's a good chance a VLSD from a 350 will be shot. They do wear out over time. Be a shame to go through all that effort and find out it's toast.

if you're going FI, you gotta pony up for a LSD.

R3drckt09 · 03-12-2014, 11:06 AM

Right, I'd end up wanting a quaife at some point, but I'd be willing to pay the $200 for the gears alone. What wears out on a differential, like could it be that bad at ~60K miles?

Chuck33079 · 03-12-2014, 11:09 AM

The viscous fluid inside of the vlsd gets cooked and it stops locking up. It's a wear item, unfortunately.

R3drckt09 · 03-12-2014, 11:16 AM

Okay, so it'd basically be an open diff then. I may still pick a low mileage one up for the gears and hope it still locks, I'll keep that in mind though. Thanks!

Joepro · 03-12-2014, 12:08 PM

Im on te base map, but actually suprised with how good the traction is even with these bfgs in 285, it got in the upper 60s yesterday and there is a bit of tire slippage in 1st but really that was about it...im sure that will change after the tune, but I plan to upgrade the rubber as well. I am running z1 engine/trans mounts and whileline rear diff bushings.

R3drckt09 · 03-12-2014, 02:15 PM

So the gears aren't even that necessary for ~500whp? Do you have an lsd or open diff?

Z eliminator · 03-12-2014, 03:42 PM

Im going to run the 4.08's in the 1/4 mile with he stage 3 sc. looking at 10psig tire pressure in the 305 35 18 MT drag radials. on the 7 AT.

JVerge5363 · 03-16-2014, 06:14 PM

Quote:

Originally Posted by Z eliminator

Im going to run the 4.08's in the 1/4 mile with he stage 3 sc. looking at 10psig tire pressure in the 305 35 18 MT drag radials. on the 7 AT.

Can't wait to see your results!!!

Mr.Squeeze · 03-16-2014, 08:39 PM

Quote:

Originally Posted by R3drckt09

Okay, so it'd basically be an open diff then. I may still pick a low mileage one up for the gears and hope it still locks, I'll keep that in mind though. Thanks!

Just buy the pumpkin for a 350z there cheap then you could upgrade the LSD whenever you want . I have a 350z AT stock differential in my car now at some poor I will upgrade the LSD.

SlowZ · 03-17-2014, 03:24 AM

Quote:

Originally Posted by phunk

It will happen! Just need some more time! So many projects at once.

Attached is a photo of my new set of wheels/tires for when I dont feel like dealing with any spin. Thats 3 sets of dang wheels for this car now, although only 1 set of fronts lol. I will be putting some skinnies up front soon though, just havent done the work to pick some out and order.

I am going to do a full setup for drag... temporary. Just for a couple local events I will setup the alignment and suspension (and rear brakes) for it.

28x11.5x15 ET Streets

What brakes are you using in the rear? I thought the 370 base brakes can only fit a minimum of a 16 inch wheel?

SlowZ · 03-17-2014, 03:26 AM

Did not read that you were changing out brakes lol. What brakes are you going to use then? Stock non brembo 350 brakes?

phunk · 03-17-2014, 03:35 AM

Yup base model 350z rear brakes. I bought some stoptech rotors and pads for back there. Did the same on my 350z occasionally

SlowZ · 03-17-2014, 03:43 AM

Gotcha. The selection of 16 inch drag wheels to 15s is insane. 16s are almost non existent compared to 15s. I might get a set of base 350 brakes. Would you recommend running those as for a street car? I really wouldn't want to switch brakes every weekend. I just don't have the time and patience lol

03-12-2014, 10:14 AM	#47 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	There's a good chance a VLSD from a 350 will be shot. They do wear out over time. Be a shame to go through all that effort and find out it's toast. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

03-12-2014, 11:09 AM	#50 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	The viscous fluid inside of the vlsd gets cooked and it stops locking up. It's a wear item, unfortunately. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

03-12-2014, 12:08 PM	#52 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 34	Im on te base map, but actually suprised with how good the traction is even with these bfgs in 285, it got in the upper 60s yesterday and there is a bit of tire slippage in 1st but really that was about it...im sure that will change after the tune, but I plan to upgrade the rubber as well. I am running z1 engine/trans mounts and whileline rear diff bushings. __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

03-12-2014, 03:42 PM	#54 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,659 Drives: 370 Z 7AT Sports Rep Power: 19	Im going to run the 4.08's in the 1/4 mile with he stage 3 sc. looking at 10psig tire pressure in the 305 35 18 MT drag radials. on the 7 AT. __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

03-17-2014, 03:35 AM	#59 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,667 Drives: 370 Rep Power: 971367	Yup base model 350z rear brakes. I bought some stoptech rotors and pads for back there. Did the same on my 350z occasionally SlowZ likes this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

03-12-2014, 11:06 AM	#49 (permalink)
R3drckt09 Base Member Join Date: Jul 2013 Location: Texas Posts: 145 Drives: 09 Nissan 370Z Base Rep Power: 12	Right, I'd end up wanting a quaife at some point, but I'd be willing to pay the $200 for the gears alone. What wears out on a differential, like could it be that bad at ~60K miles?

03-12-2014, 11:16 AM	#51 (permalink)
R3drckt09 Base Member Join Date: Jul 2013 Location: Texas Posts: 145 Drives: 09 Nissan 370Z Base Rep Power: 12	Okay, so it'd basically be an open diff then. I may still pick a low mileage one up for the gears and hope it still locks, I'll keep that in mind though. Thanks!

03-12-2014, 02:15 PM	#53 (permalink)
R3drckt09 Base Member Join Date: Jul 2013 Location: Texas Posts: 145 Drives: 09 Nissan 370Z Base Rep Power: 12	So the gears aren't even that necessary for ~500whp? Do you have an lsd or open diff?

03-17-2014, 03:26 AM	#58 (permalink)
SlowZ Premium Member Join Date: Jan 2014 Location: So cal Posts: 371 Drives: Z Rep Power: 11	Did not read that you were changing out brakes lol. What brakes are you going to use then? Stock non brembo 350 brakes?

03-17-2014, 03:43 AM	#60 (permalink)
SlowZ Premium Member Join Date: Jan 2014 Location: So cal Posts: 371 Drives: Z Rep Power: 11	Gotcha. The selection of 16 inch drag wheels to 15s is insane. 16s are almost non existent compared to 15s. I might get a set of base 350 brakes. Would you recommend running those as for a street car? I really wouldn't want to switch brakes every weekend. I just don't have the time and patience lol

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