Spec aluminum pressure pltae?

[Slippi84]

Do you guys think that with a findanza flywheel that going for the aluminum pressure plate option with my spec stage 3+ would be overkill with limiting rotating mass. Like I'm no rookie at shifting or driving so I"m not worried about the rpms dropping fast when shifting as long as it's not gonning to be undriveable. I figure since I"m going all out might as well get the best of the best. They even have a $75 light weight option you can get on top of that I think but that may be a waste with the aluminum pressure plate. This isn't going to be a turbo car so I don't need mass to build boost by the way.

 

[PieEyedPiper]

Many enjoy a lightened flywheel, though too light is counter productive in some circumstances. I like the some of the heavier-light flywheels that hang out around 12lbs. 7lbs seems to be too light according to some members.

I'm curious though, if you're not going to boost that 420A of yours, why do you want a clutch designed for triple or even quadruple the power output of your car?

EDIT: It just dawned on me why you might have taken interest in that particular clutch. I found it peculiar, myself being a SPEC Stage 2+ owner (good for 415+ ft.lbs of trq.), but it stands to reason that not all Spec 3+ clutches hold the same power, or even close. I would guess that SPEC, like many companies, lay out a product line for each individual application in such a way that uses the same terminology for "stages" such as the "Stage 3+" but they may have dramatically different, and proportionally appropriate holding capacities.

i.e.
The 4g63t might have 3 clutches available from company A that range from 240ft.lbs, 350ft.lbs and 450ft.lbs of trq. capacity.
The 420A might have 3 clutches available from company A that range from 150ft.lbs, 200ft.lbs and 300ft.lbs of trq. capacity.
However, the nomenclature remains the same for each "stage" while the application changes - determining the holding capacity of that particular clutch.

I hope that makes sense. This idea was kind of difficult to type out.

btw, nice build on that 420A. What are your goals?

 

[Slippi84]

Many enjoy a lightened flywheel, though too light is counter productive in some circumstances. I like the some of the heavier-light flywheels that hang out around 12lbs. 7lbs seems to be too light according to some members.

I'm curious though, if you're not going to boost that 420A of yours, why do you want a clutch designed for triple or even quadruple the power output of your car?

EDIT: It just dawned on me why you might have taken interest in that particular clutch. I found it peculiar, myself being a SPEC Stage 2+ owner (good for 415+ ft.lbs of trq.), but it stands to reason that not all Spec 3+ clutches hold the same power, or even close. I would guess that SPEC, like many companies, lay out a product line for each individual application in such a way that uses the same terminology for "stages" such as the "Stage 3+" but they may have dramatically different, and proportionally appropriate holding capacities.

i.e.
The 4g63t might have 3 clutches available from company A that range from 240ft.lbs, 350ft.lbs and 450ft.lbs of trq. capacity.
The 420A might have 3 clutches available from company A that range from 150ft.lbs, 200ft.lbs and 300ft.lbs of trq. capacity.
However, the nomenclature remains the same for each "stage" while the application changes - determining the holding capacity of that particular clutch.

I hope that makes sense. This idea was kind of difficult to type out.

btw, nice build on that 420A. What are your goals?

Thanks and your 100% right on everything you said. My goals are small nothing big... just to be the fastest non turbo eclipse with the aid of nitrous. I know some consider it cheating but I put turbo's in the same boat as nitrous. Technology at work in a nut shell. I"m looking at a 2 stage nitrous setup equaling up to about 400whp whatever it takes to make that is what i'll spray.

By the way a spec stage 3+ holds 475ft/lbs trq. I could probably get away with a stage 3 but a stage 3 is a sprung 6 puck a stage 3+ even though a lot more money something like 120 bucs is a street disk that's sprung making it more streetable and this car will be dd

 

[bullettdsm]

just to be the fastest non turbo eclipse with the aid of nitrous. I know some consider it cheating but I put turbo's in the same boat as nitrous. dd

How pissed are you gonna be when I beat you without nitrous ?

No, no just kidding. I really want to talk sh8t but I can't cause it looks like one of my fabricators has disappeared (again). I can't get my intake tested or my other project car on the road without the part(s) that he was halfway through making. Grr. OK, end rant.

As for your clutch situation. I'm sure you already know my position on Spec, but I got no problem, if you got no problem. I have gone as light as 8lbs on my flywheel with the AWD (Yeah, a little bit of a different animal but the same idea. I ran it from approx 250whp to 400whp. Same power range as you are talking about) I saw no problems other than the ECU getting "used to" the idle. My butt dyno definitely felt a much better response. Shifting was no problem for me. I was happiest with the 8lber.

That being said, you need to edumacate me on the aluminum PP. What part is aluminum? The face is the heaviest part of a PP and I can't see that being aluminum. The fingers can't be made of aluminum. I guess what I am driving at is how much weight are you gonna save? I'm not being a wise-ass, this is true ignorance of an aluminum PP.

MB

 

[Slippi84]

How pissed are you gonna be when I beat you without nitrous ?

No, no just kidding. I really want to talk sh8t but I can't cause it looks like one of my fabricators has disappeared (again). I can't get my intake tested or my other project car on the road without the part(s) that he was halfway through making. Grr. OK, end rant.

As for your clutch situation. I'm sure you already know my position on Spec, but I got no problem, if you got no problem. I have gone as light as 8lbs on my flywheel with the AWD (Yeah, a little bit of a different animal but the same idea. I ran it from approx 250whp to 400whp. Same power range as you are talking about) I saw no problems other than the ECU getting "used to" the idle. My butt dyno definitely felt a much better response. Shifting was no problem for me. I was happiest with the 8lber.

That being said, you need to edumacate me on the aluminum PP. What part is aluminum? The face is the heaviest part of a PP and I can't see that being aluminum. The fingers can't be made of aluminum. I guess what I am driving at is how much weight are you gonna save? I'm not being a wise-ass, this is true ignorance of an aluminum PP.

MB

straight from spec site:

SPEC manufactures aluminum pressure plates for many applications. These pressure plates are designed for OE fitment, but can be used with an array of transmissions and flywheels. The benefit of the aluminum pressure plate is comparable to gains from a lightweight flywheel, and in most cases is less costly.
For years lightweight flywheels have been used to transfer energy from an engine to the ground more efficiently, resulting in horsepower and torque gains, quicker revving and less internal engine wear. The SPEC aluminum pressure plates offer the same benefits, and the reduction in mass is more effective since the pressure plate extends further from the crank flange.
These plates can be used with an OE flywheel or in conjunction with a lightweight flywheel for a more drastic improvement. Drivability is virtually unchanged, and the aluminum plates offer the same high clamp loads, and in some cases more clamp load, than the standard steel SPEC high performance pressure plates. SPEC uses only aerospace quality aluminum and fasteners and most SPEC aluminum pressure plates carry SFI certification.



On top of that they have a seperate light weight option that is only $79 the aluminum pressure plate option is $199.


On a side note I don't think 13.8 will hold up to a fully built motor running 200shot but then again you do have some bad ass NA parts.

 

[bullettdsm]

straight from spec site:

On a side note I don't think 13.8 will hold up to a fully built motor running 200shot but then again you do have some bad ass NA parts.

Who said anything about 13.8 ?

I guess I gotta research the aluminum PP now

MB

 

[Slippi84]

Who said anything about 13.8 ?

I guess I gotta research the aluminum PP now

MB

Yup and I figured you wouldn't be at 13.8 for long. I'm going for 11's with this build so we'll see what happens. But yeah I'm just worried about being to light to idle.