Thread: The Ultimate 6 Speed Swap Thread...Parts/Instructions/Results!!

what the hell how do I keep missing things lmao thanks ashton

Its a big first post. lol. There is a reason its called the Ultimate 6 Speed Swap Thread. haha I think pretty much every single aspect and basis is covered.

Well, my spec stage 3 SR20DET RWD clutch came this week, and I finally got it installed yesterday. It had a little bit of overhang past the outside of the flywheel, but not as much as the maxima clutch did. I didn't feel like going to the machine shop again, so I ground some more off of my bellhousing. It does have a small hole in it now, but oh well, it can be easily patched. Another issue I found was that the input shaft was pressing against the pilot bushing in the flywheel, and I didn't notice until yesterday. That was one of my clearance issues from the beginning, but I was unaware. I ground some off the end of the input shaft, and all is well now. The 2 motor-tranny shims I'm using may not be necessary, but I wasn't about to break down the clutch\flywheel again to remove one, lol. So, now my engine and tranny are in my car again.........finally.

You probably could have just removed the pilot bushing from the flywheel. The s15 uses one but the 6 speed does not. Probably would have been easier than taking material off the input shaft.

Oh well. Glad you got it sorted.

Well the side grinder with an 80 grit paddle disk took about 45 seconds, and it did no harm to the tranny. It was only a little bit and I didn't want to remove the pilot bushing for 2 reasons; the pilot bushing allows you to use the clutch disk centering tool; I really didn't want to take the flywheel off again....I was already beyond pissed at that point.

Ashton any reason why S14 flywheel wont work? I stumbled upon a Nismo RS521 very cheap and am tempted to use it with a DET/Maxima clutch.

s14 isnt a dual mass. The s15 is. The s13/14 flywheels are the same.

Sure but dual mass is not a must. Ok measured a few clutch setups today.

OEM P11
2 3/4" thick
28.8lbs total (no bolts)

OEM P12
3 7/16" thick
35.8lbs (with bolts)

Nismo RS521 Flywheel and GTiR 240mm Clutch setup
2 11/16" thick
27lbs (no bolts)

GTiR clutch is on the thinner side, but using a DET one might add the extra 1" needed.

The reason I'm thinking about the S14 flywheel is because Snickers mentioned that he found a way to use oem sized flywheel and pressure plate (with new disc). Yesterday I asked him about that magic trick, he is looking up his notes on part numbers he used but it involves extending out the TOB to reach the smaller flywheel. But he did also mention that the problem with that input shaft teeth need to be extended out to reach the disc.

Thus I wont be bothering with the S14 flywheel, but I am tempted to do S15 setup. 240-250mm would let me use an easier clutch better for dding, compared to 225mm needing stiffer pressure plate.

I think you'd still have full spline engagement on the clutch disk. The input shaft on mine was hitting the pilot bushing, so it sticks all the way back there. It would have plenty of room to take up the 1/2" difference, and you'd need a tob that same length longer.