SR20DET clutch, 240mm, hardbody flywheel: will it fit???

Information on the naturally-aspirated KA24E and KA24DE engines.
andrave
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oh ok, heres the deal:I just got pitched a hellacious clutch, sprung aggressive 3 puck, in terrific shape, but its for an sr. I know the 240mm 300zx clutch fits with the hardbody flywheel (if I know this, I thought I did. don't I?) so would the 240mm sr20 clutch fit? if it does, I'm so buying this.. has anyone done this/heard of this/ considered it?


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huguetpj
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Are you sure the SR uses a 240mm clutch? If so, then it should fit. Just make sure the SR disc uses the same center thread (for lack of a better word) as the KA.

andrave
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240mm, 24 spline shaft.whats the ka have for the shaft? if someone can help me verify this then I have an awesome clutch for cheap...the hardbody uses a 240mm too, so the flywheel should work...

andrave
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It is 24 spline, 240mm also. I just verified this.so this should work, right? the sr20 is 24 spline, 240mm. the hardbody is 24 spline, 240mm, and the ka is 225mm, 24 spline (apparently).so I should be able to use the hardbody flywheel, the 240 clutch and pressure plate, and be set?

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huguetpj
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I know, from reading White Bunny's special threads on FA that the problem with using the stock 300zx flywheel on the KA shaft is that the KA has a securing nail on it. Don't know if this is the case with the KA truck. You can either have the FW worked to accept the nail or discard the nail, but the nail is supposed to be there for a reason. Also, make sure it is the 4x4 FW, cause I'm under the impression the 4x2 clutch assembly is 225mm.

As long as the 4x4 FW fits the 240 shaft you should be set. Another possibilty is to have the stock 240 FW resurfaced and redrilled for the 4x4 PP.

So just so I'm sure we are talking apples vrs apples here. You will need:

1. 4x4 flywheel or resurfaced/redrilled 240 FW2. SR 240mm clutch disc3. 4x4 pressure plate

andrave
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I wonder if the SR pressure plate would fit?

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huguetpj
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andrave wrote:I wonder if the SR pressure plate would fit?


Good question... beats me :confused:

andrave
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how would you have the flywheel "resurfaced" for a 240mm clutch? same as having one resurfaced regularly, only tell them to make the friction surface 240mm??redrilling wouldn't be that hard. That would be cool if I could drop this off at a machine shop with 50 bucks and make it work.

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deviousKA
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The offset of the flywheel is wrong. The 240sx ka use a different offset flywheel than the trucks and the l series cars. I dont exaclty remember if its a spacer that the truck flywheel requires, or material to be removed? Check that old White Bunny thread the info is in there, on FA i think.

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huguetpj
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deviousKA wrote:The offset of the flywheel is wrong. The 240sx ka use a different offset flywheel than the trucks and the l series cars. I dont exaclty remember if its a spacer that the truck flywheel requires, or material to be removed? Check that old White Bunny thread the info is in there, on FA i think.


Yes. Devious is right. The ka flywheel was either slimmer or wider than the truck flywheel. That was the other issue. Search for White Bunny special on FA if you still want to use the truck FW.

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huguetpj
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andrave wrote:how would you have the flywheel "resurfaced" for a 240mm clutch? same as having one resurfaced regularly, only tell them to make the friction surface 240mm??redrilling wouldn't be that hard. That would be cool if I could drop this off at a machine shop with 50 bucks and make it work.


Regular resurfacing. The clutch disc will wear the FW surface over time. I had about a .5-1mm 225mm diameter wear on my FW. Just ask them to make the entire FW face level, and try to resurface the least amount as possible. Once you mount the disc and pp you'll see if you need to resurface further and how much. Remember that the pp diaphragm should be leveled once you have torqued the pp screws.

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deviousKA
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oh btw, just for some added info, rb26 skyline flywheel and clutch can work with ka. Not sure of the advantages with the stock rb flwheel, but variety of aftermarket versions available. Just throwing it out there.

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huguetpj
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what size is the stock RB26 clutch assembly? If it's 240mm it's an option... but I think quite difficult to find :confused:

andrave
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defintely difficult to find.so I could use the SR clutch disc, the ka resurfaced flywheel, and what pressure plate? the 4x4, possibly the sr?I'm getting dizzy...lol

lovemysan2
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240mm clutch in my 2wd 96 pickup

andrave
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I noticed that fidanza lists their applications for the 2wd as 240 as well, thank you for the input lovemysan...I'm going to try to this with SR PP and disc and ka flywheel and see what happens...

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huguetpj
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Go ahead. I'll bet the SR PP should fit, and since you are redrilling the stock FW you won't have issues with placement... it might even turn out that the SR PP is the same as the KA truck or 300zx.. although if that is the case why didn't the White Bunny see this before... hmmm

andrave
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I am betting they fit. I'm waiting to find out. free sr pressure plate and clutch from my friend, so its no harm done.


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