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> Tubeframe 914, Started work on my rear custom uprights
Hontec
post Sep 5 2011, 11:26 AM
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QUOTE(sixnotfour @ Sep 5 2011, 06:20 PM) *

MudFlaps, (IMG:style_emoticons/default/wub.gif) If you ever want to part with them ? let me know



I'm going for a GT clone, so most likely I will not use them. I just had the chance to buy them and did. If I do not use them, I will gladly pass them over to you..
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Hontec
post Sep 5 2011, 11:28 AM
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QUOTE(wingnut86 @ Sep 5 2011, 06:40 PM) *

...so, the NOS Wiper package was what is US $$?

Can I send your local connection some American "Southern" Barbecue Sauce to tempt them to ship direct to me (IMG:style_emoticons/default/beer.gif)

(IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/pray.gif)

Wing-Guh-Nut86



Not even that much if I recall correctly, under 200$ for sure...

Not sure if he will accept bribes... (IMG:style_emoticons/default/biggrin.gif)
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Hontec
post Sep 28 2011, 12:51 PM
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Today I felt like starting on my rear uprights. I am going to build a custom rear double wishbone suspension using honda bushings. The reason for this is that they are readily available in both urethane and monoball. The brakes will be 309x31mm Porsche 928 S4 discs and 4 pot calipers. I will also install a separate parking brake caliper.

all this fits into the 15"fuchs wheel.

The main reason for doing this is that I wanted to use the big 911 turbo axle stub, which does not fit into the stock 914 trailing arm and this also permits the use of the 911 hub.

So with this in mind I started out today with a bunch of steel and ended up with an upright.

This is the left side, on the bottom the big bushing is the main trailing arm, the small bushing is for the honda toe-link, which permits me to set toe-in/out.
The play in Urethane or monoballs allows me the few degrees of adjustment via the toe link arm.

The upper bushing fits the Honda adjustable camber arm.

I will construct the wishbones in a later stadium when I have the transmission in with the CV's installed to make the pivot point equal to the CV pivot point, this will give me almost no binding of the axle.

The shocks will be short ones attached to the basic frame or maybe pushrod..not decided yet...

For the observant ones amongst us, you'll see I have made clearance on the bottom pivot points in the main hub, on the top I forgot and will need to correct it tomorrow...

Also the backplate needs to be welded on tomorrow...


Pics:








(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317235847.1.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317235852.2.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317235853.3.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317235855.4.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317235856.5.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317236096.1.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317236390.1.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317236107.2.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317236108.3.jpg)
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Britain Smith
post Sep 28 2011, 01:03 PM
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Cool stuff!
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Brett W
post Sep 28 2011, 02:32 PM
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The 911 Turbo rear hubs I have don't use a unit bearing they use a crush sleeve and tapered rollers (Pretty sure, haven't looked at them in a couple of months). Not sure how that will work with what you have since it looks like you used a 914 or 911 bearing housing.

Are you going to skin the backside? I would skin it with maybe some 16ga sheet. Keep the weight down, but keep the strength up. No need to skin it in .125 plate.

Good call on the Honda bushings. They are cheap and readily available. The Hardrace stuff would work well for a street car. Of course a custom Johnny Joint would also work pretty well. It would give you the benefit of the heim joint and the damping of the rubber bushing. I am pretty sure Porsche used a similar join in some of the later model stuff.

Have you looked at using the 997 rear suspension? I have most of it here to put on a car at some point. It is all pressure cast aluminum and its nice and light. Build some subframe pickup points and bolt all the stock parts in.
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moparrob
post Sep 28 2011, 03:14 PM
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Nice Caterpillar welds. Looks good.
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Hontec
post Sep 28 2011, 04:16 PM
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QUOTE(Brett W @ Sep 28 2011, 10:32 PM) *

The 911 Turbo rear hubs I have don't use a unit bearing they use a crush sleeve and tapered rollers (Pretty sure, haven't looked at them in a couple of months). Not sure how that will work with what you have since it looks like you used a 914 or 911 bearing housing.

Are you going to skin the backside? I would skin it with maybe some 16ga sheet. Keep the weight down, but keep the strength up. No need to skin it in .125 plate.

Good call on the Honda bushings. They are cheap and readily available. The Hardrace stuff would work well for a street car. Of course a custom Johnny Joint would also work pretty well. It would give you the benefit of the heim joint and the damping of the rubber bushing. I am pretty sure Porsche used a similar join in some of the later model stuff.

Have you looked at using the 997 rear suspension? I have most of it here to put on a car at some point. It is all pressure cast aluminum and its nice and light. Build some subframe pickup points and bolt all the stock parts in.





I have 911 stubs and hubs that are huge and fit the 914 bearing, however the stubs are too wide to fit in the back opening of the 914 trailing arm.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317248197.1.jpg)





I think I'm going to try urethane first , or I have to use sealed monoballs to pass yearly inspection.

I have looked at a 993 subframe, but I wanted to try and build it myself, just because I like to fab.... (IMG:style_emoticons/default/smile.gif) I'm going to integrate this all into the tubeframe.
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Hontec
post Sep 28 2011, 04:17 PM
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QUOTE(moparrob @ Sep 28 2011, 11:14 PM) *

Nice Caterpillar welds. Looks good.



Thank you Sir!
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jaxdream
post Sep 28 2011, 05:14 PM
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QUOTE(Hontec @ Sep 28 2011, 02:16 PM) *

QUOTE(Brett W @ Sep 28 2011, 10:32 PM) *

The 911 Turbo rear hubs I have don't use a unit bearing they use a crush sleeve and tapered rollers (Pretty sure, haven't looked at them in a couple of months). Not sure how that will work with what you have since it looks like you used a 914 or 911 bearing housing.

Are you going to skin the backside? I would skin it with maybe some 16ga sheet. Keep the weight down, but keep the strength up. No need to skin it in .125 plate.

Good call on the Honda bushings. They are cheap and readily available. The Hardrace stuff would work well for a street car. Of course a custom Johnny Joint would also work pretty well. It would give you the benefit of the heim joint and the damping of the rubber bushing. I am pretty sure Porsche used a similar join in some of the later model stuff.

Have you looked at using the 997 rear suspension? I have most of it here to put on a car at some point. It is all pressure cast aluminum and its nice and light. Build some subframe pickup points and bolt all the stock parts in.





I have 911 stubs and hubs that are huge and fit the 914 bearing, however the stubs are too wide to fit in the back opening of the 914 trailing arm.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317248197.1.jpg)





I think I'm going to try urethane first , or I have to use sealed monoballs to pass yearly inspection.

I have looked at a 993 subframe, but I wanted to try and build it myself, just because I like to fab.... (IMG:style_emoticons/default/smile.gif) I'm going to integrate this all into the tubeframe.


Those are SC hubs , you will need a 5mm spacer on each hub before inserting into bearing to work with 914 bearings and the cv stubs you have there. If the 108mm cv stubs don't clear you can go to the 100mm cv stubs and use 944 cvs, and depending on the setup you fab you could possibly use 944 axles , they are a little shorter than 914 axles , just need to source early 915 trans cv stubs 100mm also , same coarse spline as the 901 gear box. Looks great so far !!!!! (IMG:style_emoticons/default/piratenanner.gif)

Jack
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Hontec
post Sep 28 2011, 05:29 PM
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QUOTE(jaxdream @ Sep 29 2011, 01:14 AM) *

Those are SC hubs , you will need a 5mm spacer on each hub before inserting into bearing to work with 914 bearings and the cv stubs you have there. If the 108mm cv stubs don't clear you can go to the 100mm cv stubs and use 944 cvs, and depending on the setup you fab you could possibly use 944 axles , they are a little shorter than 914 axles , just need to source early 915 trans cv stubs 100mm also , same coarse spline as the 901 gear box. Looks great so far !!!!! (IMG:style_emoticons/default/piratenanner.gif)

Jack


Jack,

Thanks

I'm aware of the spacer and I believe Patrick motorsports sells them. There is a 914 member that makes them but he needed more orders to make them and I haven't heard again from him..Otherwise I'll lathe them myself.

These 108mm stubs in the picture fit perfectly, they could even be bigger, got room to spare!
I also have the 944 stubs.

The gearboxside I will get cv flanges from an Australian company called subarugears, they make a gearbox 108mm cv flange that fits the subaru gearbox directly. Axles I will see when everything is in place and go from there

first thing on my list is to finish the uprights and brakes so I can use them for fitting when I start the tubeframe itself...
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jaxdream
post Sep 28 2011, 05:41 PM
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Yes Patrick sells them , that's where I got mine for my SC hub conversion. You been doing your research !!! (IMG:style_emoticons/default/smilie_pokal.gif)

Jack
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Eric_Shea
post Sep 28 2011, 05:53 PM
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OK... you've officially lost me:

QUOTE
the stubs are too wide to fit in the back opening of the 914 trailing arm


QUOTE
These 108mm stubs in the picture fit perfectly, they could even be bigger, got room to spare!


(IMG:style_emoticons/default/confused24.gif)

I have 108's in my 914 arms.
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Hontec
post Sep 28 2011, 05:59 PM
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QUOTE(Eric_Shea @ Sep 29 2011, 01:53 AM) *

OK... you've officially lost me:

QUOTE
the stubs are too wide to fit in the back opening of the 914 trailing arm


QUOTE
These 108mm stubs in the picture fit perfectly, they could even be bigger, got room to spare!


(IMG:style_emoticons/default/confused24.gif)

I have 108's in my 914 arms.



That is weird because when I tried them in my stock trailingarms, they chafed the sidewalls.......that is why I came to that conclusion...

That they could be bigger is in my new hub setup, the round opening in the back is larger and I machined the hub down so the stub sticks out further in the back.
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Eric_Shea
post Sep 28 2011, 06:54 PM
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I have about 2mm on either side.

Did you remove the rust first? (IMG:style_emoticons/default/biggrin.gif)
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Eric_Shea
post Sep 28 2011, 07:00 PM
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One other notable, other than the fact that I love your amazing fab skills...

Why wouldn't you put a later model 911 hub on there (1974+), replete with all of the handbrake mounting tabs etc.?

This would give you a beefier bearing and, having the handbrake tab cast into the hub, would give you "your choice" of calipers to bolt on.

I'm sure you thought this through... just wondering from afar.
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majkos
post Sep 28 2011, 07:11 PM
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QUOTE(Eric_Shea @ Sep 28 2011, 05:00 PM) *

One other notable, other than the fact that I love your amazing fab skills...

Why wouldn't you put a later model 911 hub on there (1974+), replete with all of the handbrake mounting tabs etc.?

This would give you a beefier bearing and, having the handbrake tab cast into the hub, would give you "your choice" of calipers to bolt on.

I'm sure you thought this through... just wondering from afar.

(IMG:style_emoticons/default/popcorn[1].gif) (IMG:style_emoticons/default/beer3.gif) (IMG:style_emoticons/default/popcorn[1].gif)
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Hontec
post Sep 29 2011, 03:10 AM
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QUOTE(Eric_Shea @ Sep 29 2011, 03:00 AM) *

One other notable, other than the fact that I love your amazing fab skills...

Why wouldn't you put a later model 911 hub on there (1974+), replete with all of the handbrake mounting tabs etc.?

This would give you a beefier bearing and, having the handbrake tab cast into the hub, would give you "your choice" of calipers to bolt on.

I'm sure you thought this through... just wondering from afar.



It started simply by toying around with the lathe and the old hubs and Seeing how the old 911's are raced here and with the nowadays good quality bearings I chose to use the old hubs. I didn't want to use the stock handbrake setup because it limits me in choice of disc. I need a 31mm or thicker disc and I couldn't find one that suited. Also this permits me to go to a floating disc setup in the future.
The other reason is that the SC hubs are a perfect match to the 928S4 discs and they fit nicely into the 15 inch wheel. I also have 4 sets of 4 pot 928S4 brembo's lying around. Also I wanted a hydraulic handbrake.

When this hub setup is tested and works, , a friend of mine who has 3 state of the art cnc machines offered to scan them and cnc them from one piece of aluminium, when we are at that stage we can always machine in a bigger bearing if this turns out to be insufficient.
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Hontec
post Sep 29 2011, 11:37 AM
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Today I first corrected the mistake from yesterday and made room for the top bushing to be able to move under extreme angles without hitting the hub:



(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317835.1.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317836.2.jpg)





Then I covered the rear with a plate to finish it off:




(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317836.3.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317837.4.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317837.5.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317838.6.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317839.7.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317839.8.jpg)




Then I tried a bearing and hub for fun and to give an impression:




(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317840.9.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317840.10.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317841.11.jpg)



Then added the 928S4 disc and caliper:



(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317841.12.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317841.13.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317842.14.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317842.15.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317843.16.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317843.17.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317843.18.jpg)



To give an impression how I machined the hubs and to show the flange that interlocks with the plate and inner ring:




(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317844.19.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317844.20.jpg)




And finally: 15 inch magic!:




(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317845.21.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317846.22.jpg)


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1317317846.23.jpg)
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wingnut86
post Sep 29 2011, 11:50 AM
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...yeah but Porsche could have done that too.

Of course, the upgrade of water wheel power to CNC was cost prohibitive in the 70's

(IMG:style_emoticons/default/beer.gif)

P.S. I want 4 each... (IMG:style_emoticons/default/popcorn[1].gif)

I'll throw in 4 bottles of good ole' Utah Barbecue sauce once Eric gives up the recipe:-)
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Hontec
post Sep 29 2011, 02:10 PM
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QUOTE(wingnut86 @ Sep 29 2011, 07:50 PM) *

...yeah but Porsche could have done that too.

Of course, the upgrade of water wheel power to CNC was cost prohibitive in the 70's

(IMG:style_emoticons/default/beer.gif)

P.S. I want 4 each... (IMG:style_emoticons/default/popcorn[1].gif)

I'll throw in 4 bottles of good ole' Utah Barbecue sauce once Eric gives up the recipe:-)



pfff 2 days work per hub........on the other side...you're mentioning the bbq sauce way to often..... (IMG:style_emoticons/default/biggrin.gif)
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