Six_Shooter's money pit and time vampire... v.240Z

[Guest]

Car is back up and running. Will put together a video soon. I'll be out tuning tonight for a bit.

[Guest]

Well, since my clutch has been bad for a while, and I just can't seem to get the new clutch in, due to not being able to get the new bellhousing finished, but it's close...

Anyway I used some footage from earlier this year to put together a short video that has ok sound...

I tried to make it a little more interesting than just raw video.... Let me know what you think.

[Purple pit]

That was fun to watch too, thank you. Is that a 72 Cutlass that your friend is driving?

[34blazer]

[Guest]

That was fun to watch too, thank you. Is that a 72 Cutlass that your friend is driving?

Thanks.

It's a '71 actually, which has some very cool things going on with it. It has every option available at the time and some late model options added as well, so it's heavy.

It also has a custom 4 bbl throttle body made from a 454 throttle body and a 350 throttle body, on top of an Edlebrock headed 455, with a fairly lumpy cam, that makes idle tuning painful, backed by a 4L80E, which is run by a '7060 PCM. I do all the tuning for him, and I think we've finally hit the limits of the PCM.

It's a very clean and well put together car, without getting overly fancy.

I knew you'd like it, but I was expecting a LITTLE more of a response. LOL!

[34blazer]

Encore Encore!

Sent from my XT1080 using Tapatalk

[Purple pit]

Sounds like that 71 is a fun car. Always liked the 71's and 72's. There is a company that makes what they call a Raptor 700 or 4L60 that they raise the first gear so the ratio is closer. There may be a kit for that too. They say it drops 1/4 times by one second.

[Guest]

The good thing is the 4L80E doesn't suffer from the same short first gear problems that the 4L60E does. There are different ratio sets available, but what he has works well, and changing them doesn't appear that it would help him any.

--==EDIT==--

I just corrected my previous post, I see that for some reason I posed it was a 60E, not an 80E... It is indeed backed by an 80E.

[Purple pit]

LOL thought it was me. Just read the line on the "what's new" and went "oh crap I didn't fully read something again!". Ah, most us with 60's have been reading about or have 4T60's for years so it's a mental default. Or you are just getting old.

[Guest]

Encore Encore!

Sent from my XT1080 using Tapatalk

Soon enough. The new trans is almost complete, hoping by the end of the week.

[Guest]

I'm gonna add some pictures...

First just a few from a road trip I took this summer, this was at my destination picking up a part. It was a beautiful farm, so I had to get a few pictures.

[Guest]

Clutching the gears

Well, my clutch is slipping and has been a while now, basically since a couple days after going to the track last, which was July I think, and it's getting worse. I decided on an ACT 6 puck clutch to replace the aging and ailing Centerforce.

The CF was a 225mm clutch was was a common Nissan diameter that was used for many years, and was the size of clutch for the 240Z, non 2+2 260Z and 280Z and non turbo 280ZXs. It was even used on some FWD cars up into the 90s. Nissan liked to keep things that worked for a long time. Well there was a larger clutch at 240mm that was used on 2+2 260Z, turbo 280ZX and most vehicles in the mid '80's+. I decided that since I wanted to make some rude power with the LX9, that I would go to the 240mm clutch, even though it meant outsourcing the flywheel modification to get it right. The 225mm clutch pressure was ALMOST the same exact size and the GM RWD 660 used.

Anyway. I didn't want to just throw the ACT in, for fear of possibly damaging it, since I believe my adapter plate isn't exactly centered. I believe this because my pilot bushing wears larger by about 4mm very quickly. There's also the possibility that this is entire due to the clutch pressure plate not being perfectly centered on the flywheel as well, but I didn't want to take any chances and decided that I would go with my original idea way back when and build a custom bellhousing. Well, what I've done so far is modified the bellhousing using a bellhousing from the Nissan FS5R30A and a bellhousing from a T5. I cut them apart and welded them together to create the only FS5R30A that will bolt directly to a Gm 60 degreeV6.

First I drained the transmission:


Heres the SUPER clean internals, there was no cleaning on my part before taking this picture.


But I needed a way to align everything to get this idea to work

So I had this very large and heavy pin made:


Which one end fits into the input bearing hole of the transmission bellhousing.


The long bit fits into the main bearing journals of a block


I cut the flanges off the transmissions


Both flanges side by side


The start of setup:


Slipped together and aligned


Initially welded


Some filler pieces

[Guest]

Introducing the very first 660 FS5R30A bellhousing


I added some filler dowel on the inside to help strengthen the weld between the two parts.


I then added a gusset to the top to help strengthen the top of the bellhousing


I had to create a new starter pocket





Looking into the bellhousing, the outer flange and the inner flange have never been seen together like this before.



I have a bit more done on this, just no pictures. I had to cut a slice along the new flange because it pulled when I added a couple gussets along the side, but with the alignment pin and the block I was able to get it real close to being in the exact right spot.

Just some verification test fitting to do before I reassemble the trans, but it should all be good to go.

[Guest]

Some pictures of the clutches

First up is an indication that something isn't centered properly. The wear mark of the clutch disc shows that it's weariing a pattern wider than the actual disc diameter. It's about 1/8" larger in diameter than the clutch disc itself.



The ACT clutch


6 puck goodness


Yellow, because yellow makes it go faster

[Xnke]

Looks good. Did the RWD starter pocket and the 5R30A starter pocket actually line up that nicely or did you do some trimming for a filler plate later?

I have a 5R30A front case for an RB25 sitting here, it's slightly smaller in diameter than the VG30 case, so it may be easier to make fit with the 700R4 case that is in my shop floor. What do you think?