To you F/I guys...

[Reebs]

I figured I would post this question in F/I, because you guys are the ones who I need the advice from. I just about to drop in my 3L turbo, and I plan to have between 310hp and 350hp depending on what I set my boost controller to.

I have a stage 2 made of kevlar (not stage 2+) and spec's website says that it is good for 340 ft.lbs/torque. I will be right around maxing that thing out, but I am not sure if they under rate the clutches or whatnot. My spec stage 2 also has around 20,000 miles of moderate n/a driving on it. I know it has life left, but I am afraid to put this beast together and find out that the clutch is slipping under boost.

What clutches are you guys running, and what power do you think/know that your clutch can hold? I know it is just another expense, but I think it would be worth it for me to pick up another clutch. I also don't know what to do about resurfacing, because I have a fidanza LW flywheel.

Well, go ahead and give me some advice! My SVT will be driven a ton, so I need a clutch that will have a decent life expectancy.


Thanks,

Jeff

[stilov]

get a hold of SVTcuervo and just get a new disc (stage 3) and put it in there...It's like 160 or so. totally worth not pulling it apart again.

[warmonger]

call spec and ask them.

[beyondloadedSE]

SPEC Stage 3 here. Its very on/off type of clutch so taking off from a stop is something you have to get used to. Mine has seen as much as 410 foot pounds of tq. It sees about 350 wtq daily.

[Pudmunkie]

Im hoping that my stage 3 does not suck as hard as Ive heard. I like being able to manipulate the clutch.

I will also toss this question in here. Im in the same boat as Reebs, I had planned on picking up a beater car for next winter, but that is probably not in the cards.

How much of a pain in the ass am I in for using this as a DD year round? Anythoughts on limiting boost in the colder months, or any other precautions I should take during the winter?

[TourDeForce]

A stage 3 in snow?

Carry snow shoes in the trunk.

But seriously, I know nothing about this - I was just bein' a funny guy...

[Pudmunkie]

Eh, I may be safe. I should graduate in dec. so the bulk of my last semester should be snow free, and for the bad days I can steal the girlfriends car

[Reebs]

get a hold of SVTcuervo and just get a new disc (stage 3) and put it in there...It's like 160 or so. totally worth not pulling it apart again.

I don't think that you can mix the stage 2 pressure plate with the stage 3 disc, can you?!?!?

[justa2pt5L]

I don't think that you can mix the stage 2 pressure plate with the stage 3 disc, can you?!?!?

Answer is yes, it wont be an issue! But make sure everything is perfectly flat to avoid engagement issues.

Personally, if you have the money I would go with a stage 3+. Its a full faced carbon/semimetallic clutch that uses a stage 5 pressure plate. She's good for 540hp. Compared to the stage 3, it is significantly better on drivability and has much less of an on/off feeling.

I ordered the 3+ for those reasons!

[Reebs]

I just tried to call spec, but they are closed for the day. I believe that SVTCuervo said you can't mix match all the clutches and pressure plates like you are making it sound, however, I will be talking with the spec tech in the morning to find out for sure. Stage 3+ clutch sounds like it would be perfect for me, but it sure is pricey! It costs more than stage 4 and 5 too!

I know that clutches are rated by torque at the crank, so Tom, knowing my setup what do you think I'll be putting out at the crank!?! I'll have your stage 2 turbo kit with the garrett turbo on a stock 3L with SVT cams... oh, and at 7.5 - 10psi!