Clutch Issues (Advice necessary)

[edisapimp]

My clutch finally took a dump last night (SPEC Stage 1 [thanks Jeff great recommendation]), and it has become quite obvious that I will need to purchase something new - by tomorrow, May 20, 2003. ::looks in the direction of Jesse, Nils, and Pampadori on Ryan's advice::I am going to buy an ACT clutch. Please don't try to sell me on something else. My only question is which ACT KIT to pick up.

There is a street/strip derivative with extrteme pressure plate, a six puck *race* clutch with extreme pressure plate (sprung), and a four puck *race* clutch with extreme PP (i think it's unsprung).

I am debating between the street/strip and the 6puck. I have heard that the street/strip is good for the reasonable power output - normal street driving - still a tough piece, but maybe not what you're looking for if you're planning on adding a level of serious power.

I have heard that the 6-puck- when I couple it with my E.T. Drags- may have the desire to destroy my transmission.

Motor is basically stock - spearco core, whatever boost it makes (spike 21 - fall to 16), e.t. drags, the usually goodies. fastest to date - 13.20@10460 trim on its way - hoping to make 320-350rwhp Thanks in Advance.

[Reklaw]

I just ordered my ACT clutch from Jeff at Heavy Throttle. After a bit of discussion we decided that the street/strip was good enough for me. He told me it would hold about 350 hp (hopefully I'm not misquoting him here). Now, I see 350 hp in my future and possibly more, but he told me that the 6 puck would be a real pain in the a$$ driving the car like I do (I drive it to work about 2 days a week, but it's city driving). I figure that I'll wear this one out by the time I have the money to purchase a new turbo, so I have time to kill before I need the 6 puck (if I ever do). Anyway, don't take my word for it. Give him a call, I'm sure he'll talk you through it. Good luck!

[SpeedRacer1]

The street clutch is really well... street like. Very smooth engagements. This is my only complaint, i like to be thrown around. Dont get me wrong, it catches when I want it to.

I had the debate going too, especially since I had both discs sitting in my garage (and still have the 6 puck doing nothing). But since I am staying at stock boost theres no real need for the 6 puck.

The first 400 or so miles on the pressure plate will be fun. It is extra tough, then it gets broken in.

[Doogz]

If you decide to go with the ACT street kit i've got one that is brand new that i'd cut ya a good deal on. Also i've got a lightweight flywheel too if you want Send me an email [email protected]

[I H8 UR DSM]

If your going to drag race it, i'd get a puck clutch

[ImportIntelligence]

I personally like the HKS single plate clutch, It's a 3 puck with a sprung hub. I have used the ACT clutches and and the HKS and I must say that the HKS clutch is as easy to engauge as the ACT street strip disc. Don;t get an ACT puck clutch, they do not have sprung hubs which may eat you transmission and are very harsh for the street. I have heard of people using their ACT puck clutches and tearing the splines right off the trans input shaft.

[I H8 UR DSM]

I have a custom iron clutch from clutch specialties in california, with a sprung hub....yuuuuummmmmmmmm....but its not soft like some people like them : )

[MojoMan]

Motor is basically stock - spearco core, whatever boost it makes (spike 21 - fall to 16), e.t. drags, the usually goodies. fastest to date - 13.20@10460 trim on its way - hoping to make 320-350rwhp Thanks in Advance. [/QUOTE]

Edisapimp, What turbo are you running. The fact that your boost spikes to 21 and falls to 16 is a good sign to turn the boost down or go buy another turbo capable of holding the boost. Also you mentioned that your motor was basically stock Im assuming so is your headgasket. Your killin your motor it sounds like. 13.2 on slicks with drags. Thats not very fast for the amount of boost your running. And if I had to guess you probably dont have much of a fuel set up that can handle that amount of boost. Im not trying to rag on you but look watch your boost controller. The stock t25 and your motor with out a good fmu is gonna take a crap soon.

[edisapimp]

MojoMan - I am not exactly what you would call "new" to the game. As for my current turbo - It's the stock t25 - If you would notice at the very bottom of my post it says "60 trim on the way" - so the turbo issue is addressed even as we speak. Both clutch and turbo will be fitted at the same time. My fuel is just fine, walbro 255 (of course) stock injectors, stock HG. 13.2 on slicks - this is Las Vegas my friend - the desert, with VERY lousy air - where a Z06 Corvette runs 13.50 and is considered "fast". My 13.20 @ 104 is DAMN fast in this area (Bear in mind a clutch that has been on its way out for about 6 months). To give you a comparisson, Here: A DOHC KA24DE with bolt ons has issues breaking out of the 17s and into the 16's - I ran 16.10 at Englishtown with essentially no mods and no tire on my '91 KA24DE.

The "amount" of boost I am running is nothing to be amazed about. I use good fuel (av-gas rated 107-108 octane) when I crank the boost up on race day - other than that I drive at 12-13psi on 91octane daily Denso IK24 x 4 - no detonation, no problems.

Anyway - I would like to thank everyone (Jesse) for their input. I ordered the 6-puck today and hope to have everything in and going by midweek before I have to go out on the 7th to CA. Thanks again for caring everyone.

[MojoMan]

Sorry if I sounded rude which I know I did. I was just curious about your set up and I did see the 60 trim on the way. It does no good when things are on they're way. Do you have any meters such as egt, afr, afc etc? Even with the race gas tuning is still important. You can run 107-108 all day but what about piston rings, valves, h.g.? You know the limits of the turbo why say,"lets crank it up I got another one on the way" Putting a new turbo on isn't gonna fix the burnt valves weak rings and the horrid blowby. And the headgasket. You can put new things on all day long but it sure as hell sucks when you get that new turbo on there and say,"lets turn it up" "oh s*** my rings are bad and my car is overheating." You still dont need 16-21 lbs to run 13.2 on slicks in vagas. Iv'e been thru vegas in my 240 and the car drove about as well as in hot and humid Dallas in july. You have more of a reason if any to turn it down with "Las Vegas dirty air". From one sr owner to another I guess this sounds gay but I was only showing concern for the motor cause Iv'e blown one before and it sucks. Although I spun a main bearing and threw a rod. There are enough threads on here to tell you, you dont need that much boost top run that. You only need 11-14. Iv'e ran 12.7 on 11 lbs. Difference is I tuned alittle before hand and still had electrical issues. No hard feelings.

[Nils]

you from Vegas?

I'd go with a six puck sprung hub clutch if possible. I had a RPS 6 puck sprung hub stage 3 clutch on my old Supra and it held the power fine.

take care,nils

btw - Attached is a pick of my Blitz clutch, it holds BPU power very good so far...it grabs very good.

[Nils]

btw,Mojoman.. Vegas is at higher elevation than Dallas, thinner/less dense air here. It is a well known fact that cars run slower here than most other places that are closer to sea level.

=)

n

[BuudWeizErr]

Nils,

Ed is in Vegas. Hes my friend.

[Nils]

gotcha.

n

[MojoMan]

Im very aware of that. Ive been there in my 240. Still doesnt make sense running the boost he was.

[BuudWeizErr]

Mojo,

Ed is on his second engine too spun bearing.

[MojoMan]

Alright!:pface He's good in my book. I wasnt trying to stir up anything. It just seems odd to run high boost at a higher altitude with less tuning. Thats what I was getting at. Sorry.