Need Advice onFull Blown Stage 2 Turbo

[deedz]

Originally Posted by mike the snake

With a race clutch, it will be harder to softly take off in 1st gear. Chances are it'll shake or shudder, and if you're not aggressive enough it's very easy to stall, that's all. I wouldn't say you need to launch the car every time, but you might have to take off in 1st at higher revs and more quickly.
Since race clutches grab so suddenly, they don't spend any time slipping, so they tend to not make as much heat.

Street clutch usually has a fully round clutch disk and operates much more like the stock clutch, easier to drive, but can't handle huge torque. Street clutches slip more when smoothly taking off so they make more heat. If overpowered by torque, they slip and make LOTS of heat.

From what I've gathered, our cars don't make that much torque even when FI, so aftermarket street clutches are OK for most FI unless you're going for BIG power.

im running the FX400 full face right now and taking off in 1st gear is exactly like what you explained. Being my first clutch upgrade i've ever experienced I thought something was wrong with my car at first but it definitely needs a higher rev to make the car move in first to prevent my car from shaking like its having a seizure. Took some getting used to thats for sure and I always felt like I was riding my clutch. Glad to know it wasnt just me who's experiencing this

[mike the snake]

I also learned the hard way with a Tilton 3 disk 5-1/4" clutch with a 5 pound flywheel on my Porsche race car. If I didn't do it properly it felt like I was going to destroy the car it shook so hard.

That clutch made SO much noise too! Freaked me out the first time I fired the car up. Sounded like rocks in a dryer.

[Brody602]

My brother had a Exedy Stage 2 clutch and ACT flywheel in his Evo X and let me tell you, it was really stiff to the point where if I wasn't used to driving it, it would cause a muscle spasm in my leg, and I'd like to try and avoid a clutch stiff to the point if possible.

[FullBlown]

Its going to he hard to get a clutch that will hold the power without sacrificing some comfortability.

We have had great success with the CM stuff from various platforms. That and the customer service that luis and his guys provide, you cannot find any where else.

We have the twin disc in our car with a restrictor valve to slowly release the fork. It makes it easier to drive on but it's still a twin disc.

[Brody602]

Originally Posted by FullBlown

Its going to he hard to get a clutch that will hold the power without sacrificing some comfortability.

We have had great success with the CM stuff from various platforms. That and the customer service that luis and his guys provide, you cannot find any where else.

We have the twin disc in our car with a restrictor valve to slowly release the fork. It makes it easier to drive on but it's still a twin disc.

Would the CM FX400 be easier than the twin disc?

[FullBlown]

Originally Posted by Brody602

Would the CM FX400 be easier than the twin disc?

Alot easier for sure.

[King Tut]

Originally Posted by pmccut

I have the FX300 on mine and it's definitely exactly as @mike the snake described a 'race' clutch. You'll need to give it a lot more revs to get it going without shudder. Pedal is significantly heavier.

Stock clutch = finger pressure
Exedy stage 1 = 2x pressure (still really light)
Fx300 = really freakin stiff

I assume fx400 is even worse.

The Clutchmasters definitely take more pedal pressure then the equivalent ACT clutch. My ACT 6 puck clutch pedal feel is much closer to OEM than a Clutchmasters setup.

[King Tut]

Originally Posted by FullBlown

Its going to he hard to get a clutch that will hold the power without sacrificing some comfortability.

We have had great success with the CM stuff from various platforms. That and the customer service that luis and his guys provide, you cannot find any where else.

We have the twin disc in our car with a restrictor valve to slowly release the fork. It makes it easier to drive on but it's still a twin disc.

Definitely nothing wrong with the CM stuff. I have just had great luck with ACT setups on previous cars, and my 6 puck clutch held up great. I wonder which setup @Sportsguy83 would go with if he had it to do again.

[brzaapi]

Originally Posted by Brody602

Would the CM FX400 be easier than the twin disc?

I have had both, yes the Exedy Twin disk is much heavier and less forgiving than the FX400. Yes the FX400 is heavier than stock and it grabs different. But once you adjust to it, it is a great clutch. In fact I prefer it over the stock. My left foot has just learned to move smooth and smaller.


I never did master the twin disk. I mean it was driveable, but I never could drive the car smooth without concentration on what I was doing with my left foot. That's not good to me, cause after some time your left foot should just be on muscle memory.

[FullBlown]

Yes, I've driven a couple cars with the ACT. It is definitely streetable.

[brzaapi]

Originally Posted by King Tut

Definitely.

Tut, if you don't mind me asking. What was the reason you decided to let the BRZ go and what car(s) are piquing your interest now?


Just curious.

[Sportsguy83]

Originally Posted by King Tut

Definitely nothing wrong with the CM stuff. I have just had great luck with ACT setups on previous cars, and my 6 puck clutch held up great. I wonder which setup @Sportsguy83 would go with if he had it to do again.

To date I see no reason to go with the more expensive CM. Like Tut said, the ACT 6 puck was easier to engage and use than my CM FX300/350 full face.

Also, the pressure plate is the same for FX30/350 to FX400 so the pedal pressure will be the same.

I am upgrading the disc to the 6 puck FX400 with the new turbo kit so wish me luck....

Originally Posted by brzaapi

Tut, if you don't mind me asking. What was the reason you decided to let the BRZ go and what car(s) are piquing your interest now?


Just curious.

Look at my build thread last few pages and/or Tut sales thread.

[King Tut]

Originally Posted by brzaapi

Tut, if you don't mind me asking. What was the reason you decided to let the BRZ go and what car(s) are piquing your interest now?

Boredom and opportunity combined. I was finished with what I wanted to do with the BRZ and the opportunity to purchase a very rare BMW E92 M3 presented itself, so I pulled off both deals in less than a week.

[mike the snake]

I was looking at used M3's, but they were out of my price range. I'll have spent more on my BRZ by the time I'm done, but it will have been gradually.

M previous car was a tricked out 08 135i, and I miss the quality and luxury and power. That's why 'm going FI on my BRZ.

I'll probably own another BMW in the future though.