Question on portals and TT mag article (1 Viewer)

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post it up, I'll whip a page up on all of it...very interested myself, got a 91 80-series I'm thinkin about buyin and adding portals/lockers to it would make good sense ;)
 
Portal-Tek and I can get you all the specifics we have on our setups. Basically, in a nutshell, we have taken the Volvo C303 setup, and re-engineered them to take care of some known problems. We decided to build complete custom setups....custom center sections based on a Ford 9" housing, custom axle housing built to user width....i.e...custom widths for any setup, coils or springs, custom built portal box ends with D60 outers...which allows the use of any brake system and hubs. Using common parts, and Ford 9" housings, provides any number of R&P gears determined on user application, availability of parts, stuff like that. Lots of information. I will work on building up a decent tech page with the info we have done and researched.
We have done alot of research on the Volvo and Mog setup's, finding weak points in both systems, pro's and con's of each, and tried to build the best of all worlds.
(Yes I will be buying a vendor star here very shortly)
We are both cruiser fanatics, and just wanted to think outside the box a little in providing a sweet setup with killer clearance.
More info to come......
 
To give you an idea of the ring gear size, the rear is using a modified Dana 35 Detroit. I think it is a 8 1/4 ring gear.

What I thought was outside the box on this rig is the fact that the owner/builder bolted these suckers up, 2F and all and ran 'em on the hardest trails in Oklahoma.

He has about $4000 invested and he is hanging with the big money rigs all day long.
 
Who would be a source for a set of stock Volvo portal axles? What is the typical asking price?
 
wngrog said:
and he is hanging with the big money rigs all day long.

Well, or until he runs out of Boone's Farm.....whichever comes first :D

Ed
 
Re:

Roswell Rat said:
Who would be a source for a set of stock Volvo portal axles? What is the typical asking price?
Give me or Portal_Tek a PM or email, we have a couple full sets (F&R) of the Volvo C303, and a few portal ends as well.
Let us know.
Russ
 
Stole this from the pirate thread:

Volvo C303:
----------------
Wheel base (for ackerman etc): 2300mm 90,5"
Total width, standard tires: 1820mm
Standard tire fitment: 8.9-16 Trelleborg or 9.00-16 Michelin XS, for road work
track (all negative offset): 1540mm
Max permissible load, front: 1600kg 3527lbs (C303) 1700kg 3748lbs (C304) 1900kg 4189lbs (C306)
Max permissible load, rear (4x4): 1700kg 3748lbs
Max permissible load, rear boggie: 3000kg 6613lbs (C304), 3800kg 8377lbs(C306)
Original application GVW: C303 (4x4) 3300kg 7275lbs C304 (6x6) 4700kg 10 361lbs C306 (6x6) 5700kg 12 566lbs
WMS: 1735 (my measurement +- 15mm) 1760mm 62,3" (Pirate search)
Portal lift: approc 125mm (4,8")
Brakes: drums, same shoes and cylinders as 6cyl/8cyl series land rover, see homepage for details. Will lock all wheels, when in good condition (i.e. not wet!)
Lockers: Vacuum operated in engaged position, return spring to disengage. People are reporting dissatisfaction with this arrangement and replacing with early range rover vacuum centre difflock actuator (vacuum in both directions) or cable or pneumatic cylinders, but the latter tend to break actuators...
Axle ratio: 2.91:1 (C303) or 3,44:1 (C306) I do not know about C304, the shorter 6x6.
Portal reduction ratio: 2.06:1
Total axle ratio: 5.99:1 or 7.08:1
Axle offset/side: diff on right side, 1015mm 40" from left wms to diff centre, 720mm 28.3" from right side wms to diff centre.
From axle centreline to pinion drive member, longituninal: 255mm 10"
Diffhousing depth under axle centreline: 130mm 7.7"
Pinion drive member bolt pattern: Same as Land Rover/Range Rover
Original setup: front sua, rear soa+anti-wrap bar
PCB 8 on 220mm (8 on 8 2/3)

The rest of the thread isn't of much use unless you are from Belarus and plan on using Russian tractor axles sourced from Vietnam.
 
What do you think about Stumper and I's set up? We have been working a lot on getting the perfect set up, so what do you guys think?

By the way, everything I have is in the 7.14 overall ratio, all Volvo C303 axles. If interested let me know I can get all the info needed. We also have Volvo ends that we can mount to a custom center if anyone is interested in that.

Scott
 
Last edited by a moderator:
So you're saying portal ends could be adapted to stock cruiser housings?
 
No, they would not be strong enough. We are making a custom 9" housing that will support the extra pressure that the housing will have on them from adding box ends. We can also leave the Volvo ends as is, or we can use there castings and change the outers to D60's(hub assembly etc...)
 
Portal_tek said:
What do you think about Stumper and I's set up? We have been working a lot on getting the perfect set up, so what do you guys think?

By the way, everything I have is in the 7.14 overall ratio, all Volvo C303 axles. If interested let me know I can get all the info needed. We also have Volvo ends that we can mount to a custom center if anyone is interested in that.

Scott

You got some pics of your stuff, or am I too internet stupid to find them. :doh:

Apperantly I am as I hit edit instead of quote before. Ignore the edit message in the above message, I changed nothing.
 
The ability to adapt Volvo ends on to cruiser housings would take quite a bit of fabrication to allow for the pressures and torque that a portal box applies to the rest of the assembly. I am sure one could do it, but it would also require getting new gears in the box ends to match the splines on the cruiser axle shafts.
Our set up consists of custom centers, adapted from 9" housings, with axle shafts that are designed to provide the strength of the portal boxes. Because we are making the shafts themselves, they can be cut to meet anyone's application when it comes to width and suspension mounting surface. As of right now, we have this setup with a stock Volvo portal end on it, and the ability to run D60 outters and hubs...which allows for different brake systems, and the ablility to change WMS to apply to differnt wheel/lug styles.
The next phase for us, is we have developed an improved portal box end based on the Volvo end. These new ends are in the starting phase of manufacturing...so hopefully soon we will have a complete custom setup end to end, with the ability to apply it to any application, width, vehicle, suspension system ect.
We (portal_tek and I) are very interested in any and all feedback that anyone can provide. WE obvisually think it will be a sweet setup, and have spent alot of time researching different ideas and trying to apply what we have found what people want. Good, bad, ugly, it would be great to see what the general (cruiser) public has to say about a set up like this, and what any reservations one would have in using a system like this.
 
Re:

cruiserrg said:
You got some pics of your stuff, or am I too internet stupid to find them. :doh:

Apperantly I am as I hit edit instead of quote before. Ignore the edit message in the above message, I changed nothing.
No pics have been put up yet, but I should be able to get some for you soon, we should have the first few sets completly built and under vehicles by Cruise Moab and EJS....month and a half or so time frame. I have plenty of pics of stock Volvo axles, but not of the custom setups quite yet.
Russ
 
THis thread has gotten me a woody! Wait, maybe that's too much info, sorry. :)
 
i think this is very cool. in about 7-10 years im gonna build a rockcrawler fj-62 and my plans include the portal axles with 9inch that you are talking about. I think its just an awesome set up.
 
7-10 year??? how bout 7-10 months......Our goal here on the custom setups is not to price it for the big pocket spenders. We have researched and done almost everything we can to keep costs down, including going overseas for manufacturing and parts. I dont have any prices as of yet, but we HOPE to keep it to a level that anyone looking for clearance and is going to be buying tires, gears, brakes, lift, lockers...that we can give them a complete bolt on set up that gives them everything they want, with the added bonus of big clearance, for less then they would have to buy all the components listed. It would make it very tough to develop a product that only the richy rich could afford. Like I mentioned, I dont have prices yet, but very soon we will have alot of detailed information on what we have going on.
A big part we have found in developing all of this, is hearing and seeing what others have done, thought of, or what other ideas people have regarding using this type of setup....what you would and wouldnt like to see or have on a portal setup.
Thats why mud is such a killer resource....lots of people with lots of great information and ideas.
Russ
 

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