Harder to launch with more power and shorted gearing on street tires. If I was going TT, I would prefer to have the longer stock gearing. For a decently tuned Vortech (close to or at 110 mph trap) you could finish at the very top of 4th gear in the 1/4 on stock gearing, but if you had this final drive, you would need to shift to 5th-assuming you have the stock redline and not a reflash. Bottom line for me-if I was staying n/a I would def get the gears, but for FI and MY plans I have no use for them.

 

I agree completely! With a SC, I believe the stock 3.5 MT final drive would be perfect. On some of the super-power TT setups with internal re-build, some have even wanted to switch to the AT 3.3 final drive gear.

 

So would you say that a lightweight flywheel and dual carbon clutch like the ATS is a better mod than this for FI guys?

I'm just trying to add a little more low end grunt to my car because off boost the S/C setup is parasitic and just lacks that kick in the pants feel..

--mike

 

ummm no. most cars have the 60 mark pass at the top of second gear 62.736485783 or somethin rediculos for the european 0-100 kph test
.... with a ts reflash you should be ok to 60.

 

it would be ridiculously awesome if:

a) you could get used to the tilton rally clutch

b) you could control the throttle to the level that when your tires break loose (it will happen a lot) that you know to ease off the throttle before you hit the rev limiter hard and blow your engine


plain and simple, the lighter the flywheel, the more you have to pay attention to the car, especially if you're racing

but yeah, it'd rock!

 

this will be my next mod....what did this cost you including installation and parts?

 

I'm really thinking about this mod. I know alot of you guys with the 3.9's also have clutch/flywheels packages. Is this a must have for the 3.9 final drive? I wasn't really planning on upgrading the clutch and flywheel for a very long time, if ever.

 

nope, the two mods are completely seperate... but for those of us who get one driveline mod, they're worse than crack... once you hear the motorbike Z revving, you just can't get enough

 

hmm can you say MT et streets? thats about all you could use to put the power down after a 3.9+ tilton+tt kit or nitrous

 

As Machupo stated, flywheel/clutch is not a must with the 3.9, but it sure is SWEET with it - ha! I went the JWT route to keep my Z a little more street-friendly (noise-wise & in-town driveable-wise), but with the Tilton it would be a monster - if I raced my Z, the Tilton would've been my choice - still may get the Tilton full-street setup one of these days. The 3.9 with the JWT clutch/flywheel & UR pullies is fun enough for me right now!!

 

And this is why many TT guys are switching the 6MT(3.5) gear out with a new LDS + AT gears (3.3). With the huge TQ advantage of TTs on the Z/G, the OEM first gear ratio is nearly worthless, you just can't get outta first fast enough without popping the rev limter, especially once traction is broken.

With the Cent SCs the 3.9 may be beneficial since the TQ slope ramps upward as opposed to nearly flat with TTs.

 

Did he just put in the 6MT final drive or the 3.9?

 

He did the 6MT gears - 3.5...........

 

i am assuming that you mean from the tranny back when you say driveline mod.....anyways, is the 350evo nismo/3.9 package recommended?

how noisy is this for daily driving?

sounds like a sweet setup...is just the 3.9 gearing worth it....i already have the lsd since i have an enthusiast....and i am concerned about noise....i don't like noise, except for exhaust

 

performance LSDs can be noise, mostly a popping sound if you accelerate through corners...

the VLSD will be fine if you're just doing normal street driving, and the 3.9 shouldn't increase noise (the whole reason BJ has my gears and LSD now was because i couldn't get anyone here to install it without undue noise during coasting), so i'd recommend having him do the install

 

what's the turn around time and shipping specs (weight) so i can calculate that into the equation? did you take your car in, or just send in the parts needed for the change?

 

beats me, i haven't gotten mine back yet (BJ just received it today )

it cost me $60 to ship the Cusco LSD and 3.9 ring & pinion to him via USPS priority with $2k of insurance and delivery confirmation...

i imagine shipping back would be in the $90 range or so as it includes a center section

 

wow I would love to do his but once I start looing at mods that cost over 1000$ I think I will be tempted to just go Boost