Trophy24

So version 1 adapter goes in the trash. It served its purpose well

We are thinking about making our own hub spacer to move the splines further. The clutch guy claims he can work with a thicker spacer so we will see. Leaving names out of this thread deliberately at this point. Good news!!! Version 2 of the transmission adapter fit very well. It snapped into place on the alignment dowels with a very satisfying click!

Sooo lets use the Spec clutch disc to check for spline engagement. Jeff milled the SR20 disc down to the right diameter and we put it all together with grease on the splines to see how far they went in. As things sit we have 2 to 3mm of engagement on the input shaft splines. We were hoping for more from the custom clutch that’s for sure. We then milled the rivets off the disc to check out the spacers for the center hub. Looks like the hole diameters and spacing are the same here

We did some comparisons to a Spec brand disk for the SR20 that Jeff had laying around. Same spline offset but larger diameter.

The custom clutch showed up with the wrong splines. Strange as all Nissan RWD splines have been the same since at least 1967

So of course I cleaned it after. Looking much better. S13 on the left, S14 on the right. the clutch is rumored to have been shipped so some excitement on our end

And 2.0 on the transmission case too. Should have cleaned it first lol

As it turns out scanning a threaded hole is not the best approach. Scan 2.0 was more deliberate. Inserted dowels into the holes and painted them with “scanning spray”. It appears flat white when dry

So where were we… 3D printed parts are for verification. Good thing as we needed to make some adjustments

This would keep the starter ring gear right where it needs to be by using the Honda flywheel. Off the shelf parts are a win if we can pull this off

Custom clutch

Stock with adapter

The Toyota sealer is FIPG (fix in place gasket). It is what I’m used to and works very well. This was my first Honda bond experience so I was paying close attention to it out of interest. I have heard good things about it from others. Not sure if it is any better or worse. Our measurements for transmission interfacing were verified before proceeding to the next steps. We were a little tired the first time. Math late at night can be risky business lol. the adapter plate is rumored to be on the 3D printer soon so we can mock things up in real life. A custom clutch disk is also in the works. In theory it will help solve the input shaft depth problem at a reasonable cost! Nissan splines offset towards the transmission. Honda diameter disc and pressure plate. I am looking forward to sharing success on this one 👍 here are some examples of what we are trying to solve. Thanks Carter! stock

While the transmission problem is being sorted out I put the oil pan in the parts washer at work. Strange how the Honda-bond sealer became really brittle in the inside of the oil pan. Came off by hand in chunks. The outside remained flexible. The Toyota product I use at work does not do this. all cleaned up and ready to be cut up for mock assembly

Here is one Jeff found on rock auto. Note how far out the splines sit. Too bad FWD Nissans aren’t the same splines