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-   -   JWT vs Southbend Clutch/flywheel set-up (http://www.the370z.com/engine-drivetrain/85656-jwt-vs-southbend-clutch-flywheel-set-up.html)

12nismo 03-19-2014 04:47 PM

UPDATE: I went with the Southbend Stage 2 daily with 14.5lb aluminum flywheel and couldn't be happier :)

O&G 03-19-2014 04:54 PM

Been running JWT products in my VQ's for over 8 years, Awesome! Everyone on here seems to lean towards Southbend, either way, they both have great reviews and customer service.

N0SL3N 04-03-2014 05:02 PM

I just upgraded to the southbend stage 2 daily from ZSpeed with the 19 lbs steel flywheel and cannot believe how much better it drives. Now just need to put some break-in miles on it before I can really test it out.

Also I have it combined with the RJM clutch pedal which I also highly recommend. Lets you dial in the engagement zone right where you like it!!

Joepro 04-03-2014 09:29 PM

break in is over rated IMO, do some heat cycles and some light stop and go traffic and let it rip, just pulled my clutch out after 25k hard miles, the last 1k boosted and it looked good, I upgraded it to a better disk, one of the daily disks with a higher TQ capacity.

forza370z 01-03-2015 02:50 AM

So JWT vs Southbend vs SZ, which kit is the best? I concern more on the drivability, performance and durability. I assume all the lw flywheels will have some noises. I am cool with that.

And what's the differences between the Southbend stage 2 daily and stage 3 daily. I know one rated 450 and the other rated 550. But how's the drivability between the 2 kits?

MJB 01-03-2015 03:15 AM

Quote:

Originally Posted by forza370z (Post 3071788)
So JWT vs Southbend vs SZ, which kit is the best? I concern more on the drivability, performance and durability. I assume all the lw flywheels will have some noises. I am cool with that.

And what's the differences between the Southbend stage 2 daily and stage 3 daily. I know one rated 450 and the other rated 550. But how's the drivability between the 2 kits?

I've had both the JWT and Southbend stage 2 setup. They both pretty much felt the same, and drivability is pretty much just like stock. The only time I could really tell I had an aftermarket clutch was when I would power shift or dump the clutch, it grabbed a lot harder than the stock setup. I also had the Southbend lightened flywheel. It was 22lbs (stock is 31lbs).. it was a little noisy when sitting at idle, but while you're driving you won't be able to hear it. Plus it revs up so much faster than the stock crap.

Zoren 370 01-03-2015 08:30 AM

Quote:

Originally Posted by 12nismo (Post 2744036)
UPDATE: I went with the Southbend Stage 2 daily with 14.5lb aluminum flywheel and couldn't be happier :)

Hello man, how is the FI project? Can you give us more review on the Southbend Stage 2? Thanks

tonythetiger 01-03-2015 09:40 AM

i got the same set up no complaints here

Merv 01-03-2015 10:39 AM

So from the looks of it,there's about 3 options for aluminum flywheels. Of coarse the lighter the better performance wise. I'm assuming the heavier you go,the less "chatter" you get because of more material to absorb the vibrations. So anything lighter than stock is a win,and with the heavier of the aluminum flywheels would be more street friendly?

forza370z 01-03-2015 11:22 AM

Quote:

Originally Posted by MJB (Post 3071795)
I've had both the JWT and Southbend stage 2 setup. They both pretty much felt the same, and drivability is pretty much just like stock. The only time I could really tell I had an aftermarket clutch was when I would power shift or dump the clutch, it grabbed a lot harder than the stock setup. I also had the Southbend lightened flywheel. It was 22lbs (stock is 31lbs).. it was a little noisy when sitting at idle, but while you're driving you won't be able to hear it. Plus it revs up so much faster than the stock crap.

Great info as always.:tiphat: Do you know how heavy is the JWT flywheel? Is it aluminum or steel? Also are both JWT and Sounthbent stage 2 kit can hold similar amount of power?

tranceformer 01-06-2015 10:35 PM

Quote:

Originally Posted by forza370z (Post 3071906)
Great info as always.:tiphat: Do you know how heavy is the JWT flywheel? Is it aluminum or steel? Also are both JWT and Sounthbent stage 2 kit can hold similar amount of power?

I've had the JWT aluminum flywheel, it's about 16 lb.

Now I have the Southbend steel flywheel, iirc that one is about 21 lb.

Zoren 370 01-06-2015 10:54 PM

^ which one do you like most? The JWT or the southbend?
Why the switch to a light weight to a 21lbs?

wsarver 01-07-2015 07:45 AM

Quote:

Originally Posted by Zoren 370 (Post 3074645)
^ which one do you like most? The JWT or the southbend?
Why the switch to a light weight to a 21lbs?

I'd be willing to bet its chatter. Going to something heavier has no performance benefit so I'm assuming its to quiet things down a little.

forza370z 01-07-2015 08:23 AM

Quote:

Originally Posted by tranceformer (Post 3074616)
I've had the JWT aluminum flywheel, it's about 16 lb.

Now I have the Southbend steel flywheel, iirc that one is about 21 lb.

Do you feel the performance differences between the two?

forza370z 01-07-2015 08:28 AM

Also for you guys have JWT or Southbend for years, do you have thrust bearing issue or did you guys bypass the clutch start switch as you will dry start the bearing?


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