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-   -   4-Rotor FB Build (side ports!!) (https://www.rx7club.com/build-threads-293/4-rotor-fb-build-side-ports-981818/)

zaridar 02-15-12 06:20 PM

now.. your video jeff

DoughRoller 02-15-12 08:15 PM

Awesome build!

Jeff20B 02-16-12 03:10 AM

2 Attachment(s)
Ever look down at your stat gear through the feed hole? Ever see a nasty edge just begging for some Dremel love?
https://www.rx7club.com/attachment.p...1&d=1329383362

These took some time to cut. Oh is that a color other than black or cast coat iron?
https://www.rx7club.com/attachment.p...1&d=1329383362

http://th01.deviantart.net/fs70/PRE/...es-d3dmg7l.png

Jeff20B 02-16-12 03:48 AM

Did he go for the RBD color scheme? Or was that just some random front plate I had lying around?
http://mylittlefacewhen.com/media/f/...5013484611.jpg

jantore 02-16-12 04:51 AM

Love the my little pony picture :P

zaridar 02-16-12 06:16 AM


Originally Posted by Jeff20B (Post 10978583)
Sure, I'm well aware of the trick and have had some success with it in the past. But these are 1.00 thread pitch. I didn't have any steel nuts this fine. Only one brass nut from a choke or something. It was not up to the task so I had to just go for it the manual way. When I was done only about 2/5 of the bolt circumference in one thread had to be cleaned up with a tiny file and a box cutter blade. The steel winds up folding over itself within the thread from the grinding/wire wheeling.

I see... good deal...

DivinDriver 02-16-12 10:17 AM


Originally Posted by Jeff20B (Post 10981617)
Did he go for the RBD color scheme? Or was that just some random front plate I had lying around?
http://mylittlefacewhen.com/media/f/...5013484611.jpg

Now, there's a coincidence... I happen to actually e-know the guy who created "trollface," via long association on a different forum.

He's getting ready to launch a national t-shirt line. Maybe he should buy your "MLTF" version off you?

Jeff20B 02-17-12 12:57 PM

6 Attachment(s)
^That's not mine. I found it on the internet.

Ok I've trolled you guys long enough.
https://www.rx7club.com/attachment.p...1&d=1329505756

It's no mock up. This is during the build.
https://www.rx7club.com/attachment.p...1&d=1329505756

Hey Divin, this R5 plate is the same as yours.
https://www.rx7club.com/attachment.p...1&d=1329505756

PercentSevenC will like this. Check out that green intermediate plate. It has secondaries. Yes actual secondaries!
https://www.rx7club.com/attachment.p...1&d=1329505756

I don't know about that waterpump... Red touching orange?
https://www.rx7club.com/attachment.p...1&d=1329505756

That waterpump...
https://www.rx7club.com/attachment.p...1&d=1329506012

DarkDrakeX 02-17-12 01:33 PM

I think uve lost ur mind. A rainbow 4 rotor. Is it going in the blue MLP car as well?

rx71king 02-17-12 02:07 PM

holy crap.....so cool:icon_tup:..can't wait to see what the intake is going to look like..

j9fd3s 02-17-12 02:13 PM

that turned out f-ing great!

Jeff20B 02-17-12 02:34 PM

DarkDrakeX, yes!

Intake will be... weird. Later. Gotta figure out end play first. Also oil pan.

Thanks Mike!

PercentSevenC 02-17-12 02:46 PM

That looks surprisingly sharp. Nice job.

I assume you'll be plugging those coolant passages?

DivinDriver 02-17-12 03:13 PM


Hey Divin, this R5 plate is the same as yours.
Not exactly... mine's not tapped for studs on the oil pedestal; smooth-bored for nuts underneath in true SA PITA style!

It's also eggplant.

The overall effect is, I must admit, unique. Made me think of 5-flavor Life Savers:

http://livingrawesome.com/wp-content...ifesavers3.jpg

Jeff20B 02-17-12 03:41 PM

Yep, got the freeze plugs ready to go!

Divin, all rear plates are tapped for 8mm x 1.25. From 1971 to '95 at least. Don't think yours is special. ;)

John Huijben 02-17-12 03:47 PM

Awesome!

Jeff20B 02-17-12 03:57 PM

Thanks!

You know, about the color scheme, love it or hate it, you won't soon forget it!

PercentSevenC 02-17-12 04:08 PM

I was looking at this thread in one of my engineering classes, and the guy sitting next to me liked the color scheme, too. :icon_tup:

DivinDriver 02-17-12 05:49 PM

3 Attachment(s)

Originally Posted by Jeff20B (Post 10983502)
Yep, got the freeze plugs ready to go!

Divin, all rear plates are tapped for 8mm x 1.25. From 1971 to '95 at least. Don't think yours is special. ;)

You know, you may be right (I'll look again after I'm home)... but the SA filter mount uses studs and nuts that attach below the pedestal.

Attachment 717967

The general rule for common structural metric fasteners is that the nut size is 1.8 times the diameter of the threaded shaft rounded up to the nearest millimeter, so since that nut came off with a 10mm wrench, odds are that the stud is RNDUP (1/1.8)*10) = 6mm. Maybe the studs just slide on past the threads, & I never noticed them.

Attachment 717968


Can't really tell for sure from this pic, but it doesn't look to have any threads down in there...
Attachment 717969

Jeff20B 02-17-12 06:13 PM

And again it's not just the 80 SA that has the short type pedestal, as you know. All 79s had a tall pedestal (is that right?) and all non-beehive FBs had shorties. All FCs had them too, but they all had threaded holes at 8mm x 1.25 as well. Heck the 20B had 'em too. Even an FD rear plate has them. Only the pedestal itself is different as both route the oil feed from the cooler into the pedestal directly (it made room for an auto starter located in front of the flex plate for the Cosmo and they just kept the casting for the FD).

Also from that last pic, sure it's a jpeg and can't really be blown up, but it looks like threads to me. :) Notice how it looks similar to the threaded holes on top of the rear plate which old an inspection cover? These holes have blind ending and are not threaded all the way through like Y plates. You clean enough of these and you start to remember stuff like this.

Face it. You and I have the exact same model rear plates. That means my 4 rotor has an 80 CA spec part in it! Feel proud!

Nice looking 12A there, by the way.

j9fd3s 02-17-12 06:23 PM

the 79 model has the tall style 0839-23-801, and the 80 model up is the short style 8341-14-310. the tall has 2 8mm studs and 12mm nuts, and the short is 6mm studs and 10mm nuts... the short is an 80-91 part, the FD and cosmo use a different part

Jeff20B 02-17-12 06:25 PM

Wow, I was right. :)

DivinDriver 02-17-12 07:23 PM


Originally Posted by Jeff20B (Post 10983645)
Wow, I was right. :)

:bowdown:

Sure enough... they's threaded awrite. :nod::nod::nod: My car just doesn't use the threads.

& thanks for the compliment.

I'm looking forward to seeing your 4-rotor (26B?) when done. I'd love to be able to do something like that.

twinkletoes 02-17-12 07:50 PM

Ahahah! Great job Jeff!

j9fd3s 02-18-12 02:27 PM


Originally Posted by DivinDriver (Post 10983692)
I'm looking forward to seeing your 4-rotor (26B?) when done. I'd love to be able to SMOG something like that.

fixed!


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