Need some advice.. Preferably from people that have done the swap. My Z is starting to slip. So I figured now would be the time to replace the clutch since I'm going to have to do it for my turbo build anyway. I found a kit, it comes with the ACT HDSS clutch and everything needed to install it and an ACT XACT StreetLite Flywheel. I know that for turbo builds light weight fly's aren't the best thing, but I figure since it comes with the kit why not throw it on and use it until I'm ready for the turbo build. My question was if anyone could tell me a little about what kind of chatter I'm going to get from the combo. Along with explaining any noticed change in pedal pressure. Any negative differences they noticed really. I'd like to have some idea as to what to expect after I do the install.

 

i would research more. I wouldnt go with ACT. Just me. I have RPS and can personally speak highly of it.

 

Clutch and flywheel or what?

 

yes

This is what i have

http://www.forgedperformance.com/sto...cat=269&page=1

However didnt buy it from them and def didnt pay that much

 

I was looking at that kit.. But I couldn't find any reviews for it, so I was unsure. How much did you end up paying for the kit? Where did you get it from?

 

your stock flywheel is a dual mass unit

aftermarket flywheels are all single mass. They are generally lighter, and due to this and their single mass design, transmit more transmission noise vs the stock unit. The noises are all there, the factory flywheel masks it. The lighter the flywheel you do, the more noise will be present

The ACT is an excellent setup, very strong clutch yet easy to drive. Would work quite well with the average turbo kit for these cars

 

I was actually looking to order from your site.. I knew the lighter the flywheel the more noise. Could you shed some more light on other things that change when you go to an aftermarket clutch and flywheel? I was looking at the kid the guy below recommended, the RPS Sport Street. How would you compare that kit to an ACT kit?

 

Most of my RPS experience is with their multidisk clutches on Supra's. They aren't particularly popular for the Z platform for whatever reason (no idea what that reason is, just don't see them used too often). From a flywheel standpoint, the lighter you go vs stock, the more throttle you'll tend to need to move the car from a dead stop. Weight on the flywheel = inertia. In a stock Z, you don't need to give the car any gas from a dead stop if you dont want to. It will engage 1st gear just fine if you let the clutch out slowly enough. Not so with a lightweight flywheel. Not hard to get used to at all, a few hours at best. Once the car is moving, there is no difference in effort required. Because of the lighter nature of the flywheel, more noise is transmitted as mentioned. You tend to notice it most when the clutch is engaged and the rpms are in the 1500-2100/2200 rpm range. Again perfectly normal but it can be a bit odd if you're not expecting it.

Some aftermarket clutches will give you a firmer, or stiffer clutch pedal. This is due to the stronger pressure plate 'fingers'. The ACT happens to still remain very easy to drive, and although the pedal is a bit stiffer than the stock 2004-2006 cars, its an improvement IMHO. The early Z's (2003) have a firmer clutch pedal from the factory vs later cars, and many who drive both prefer the earlier cars.

 

This looks like a OEM pressure plate and will perform similarly.


Not sure what kind of torque you are looking for but you might consider stepping up to a 6 puck clutch.

 

i will add my 2 cents and say my JWT combo is quite nice.
the chatter was weird, but in a performance car, its no problem. It would be lame if my car was stock and had flywheel chatter.. but alas, stock it is not.

I replaced all my components as well, master slave ss line and new pivot etc.. and w the new clutch, some pedal adjustment was required.
Diffreence in feel was apparent, but after proper adjustment, its quite soft.
new clutches seem softer than OEM, but in fact are not.. youre OEM is going bad, so it has slowly gotten harder to push, you wont realise it until you replace it, and it will actually feel softer.

 

i just installed a clutch and lightweight flywheel about 3 weeks back....idle chatter when in neutral is about the same....in 1st and 2nd when driving in areas where sound can resonate or w.e. you can hear a lil more noise than stock but your exhaust should pretty much overpower it... i was expecting it to be way worse...

 

Is the chattering everyone keeps mentioning something that's just audible or is there a physical vibration that's introduced??

 

i believe its just gear lash... or so i was told.. our cars have noisy transmissions from the factory.. just something you have to get used to.

I have a competition stage 2 clutch and the chatter is pretty damn loud even with my GReddy Ti-C exhaust w/ test pipes.. flywheel weighs 14lbs.. i have heard nothing but good things with competition clutches but i am just unlucky and havent had a good experience with mine..