Thanks. I just realized I wrote "three" twice.

 

Just to chime in on the streetability of the Stage 4. It is not extremely difficult to drive, but it grabs instantly. The clutch is not too noisy, compared to my old OS Giken clutch. It does tend to make some noise when trying to slip the clutch and when the pucks grab, it jumps if you're going slow. Not too good for a daily driver in traffic, but fun on the street!

 

I was told this clutch and flywheel can handle 650rwhp easily (and should handle up to 1000rwhp if you plan on it ), but it isn't streetable. So I may get the Clutchmaster Stage 3 clutch, or ACT clutch (with JUN flywheel). On gscmotorsports.com it says that the ACT holds up to 517ft./lb., 6-puck disc holds 662ft./lb. So I don't know for sure yet. Maybe i'll get the ACT street disc first until it can't handle anymore and then get the race disc, ACT is very reputable from what i've heard.

 

Whos got an opinion on which aftermarket clutch is as quiet or quieter than the stock clutch? The following are the items in order of importance that will dictate which clutch I buy.

1. QUIETNESS
2. Drivability
3. Power handling

Anyone have an opinion on what I should buy?

Jeff

 

The choice largely depends on what your target rwhp is.

In my case , I'm targeting >600rwhp from a built long block and APS TT turned up over 1bar. So I am seriously considering a Carbon-carbon setup from either ATS or RPS. It meets the streetablity criteria with a little noise due ot lightened lfywheel, but these are both very pricey ar >$2300. For an NA or low bost FI this woufl be enormous overkill. At the <400rwhp level there are many many choices.

 

We are doing the same setup with the same targeted goal and have decided to go with the RPS Max Street. Based on our experience with RPS clutches they are significantly underated as far as capacity, i.e., my 490 rated Sport Street clutch has had zero problems holding 530-580 rwhp.

 

I prolly asked this already but..

Is the RPS Max street easy to slip and how much stiffer is the pedal.

Thanx much.

 

The Max Street is easier to slip than the Max 6 Puck and just a little harder than the Sport Street. I have not driven a 350Z with the Max Street on it but on the 300ZX it is about 1/4 stiffer than stock, still very well within the daily driver limits in my opinion.

Hope that helped!

 

Yes thanx great insight.

 

So basically so far it's between the clutch masters stage 3 and the RPS max street for streetablility? Price wise the clutch masters seems to be more expensive..so can i safely say it's better? or are they still equivalent. Also what are the options from ACT for this type of level also? i went to their website and it was kinda vague with no pictures.

 

the ACT is on our site http://z1auto.com/prodmore.asp?model...ne&prodid=1149

Very easy to drive, and holds to 517 lb feet of torque

 

A liittle on the light side ,I don't know if ACT is concervative with their TQ numbers? I'm looking for something to hold 600rwhp and still be streetable.

 

ok..so between the ACT, RPS, and clutch masters....and setting aside price comparisons....which one would be considered the overall best one in terms of all the factors of streetablity?

 

I use ATS triple carbons in many of my setups as they can handle 1000 HP with ease even with the lighter pressure plate. They are very smooth and you can order a soft type if you want perfectly easy to drive type engagement. Those are rated at 800 HP capable. The nicest part is that they last for a super long time. I've never had to rebuild one but you can order the parts to if need be. With carbon composite disc material you get triple life expectancy over cero-metallic disc clutches plus higher thermal resistance. The ACT is an excellent choice for a street milder person who doesn't plan on going crazy with the car.

 

Keep in mind the RPS Max Street must be used in conjunction with the RPS Cyn-R-G segmented aluminum flywheel, so the price is going to be higher than just a clutch by itself.

 

I like the twin-plate clutch from or triple if your horsepower numbers require it.

I will be running a Cusco Twin Plate on my 240SX putting out about 400 at the wheels.

OS Giken
Ogura Racing Clutch
Cusco
Exedy
HKS
BL/TZ
ATS

are some Japanese makers of the Twin-Plate carbon clutch.

 

haha...ok...let me rephrase that. Which is the best clutch of the ones i mentioned previously that are within an adequate price range =) meaning (400-600 dollars) or something around there?