tiagra

What compressor is this? Looks like mine, but with double cylinder? Nice one... Once again someone making me think about tilting cabin, damn I think I will integrate tilting as an emergency option...

Quick follow up: 2nd prototype hub has arrived and the spline is now PURRRFECT. One thing we can finally strike of the list...

Hiya hoss, a major update, yes Firstly: We were ready to make a move on the first conversion and prototype brackets when we found out, that Brembo has seized production if THIS caliper and there is no stock whatsover. After a lot of frustration we started looking for alternatives only to find out that 500+VAT per caliper is the cheapest we could find. In the end we decided to go back and try a supplier we had initially planned for anyway, but which was dumped because of communication problems. So yet again we visited these guys and are now hopeful that it will work out this time. Meanwhile the second hub prototype with proper spline tolerances has been manufactured and I will get it TOMORROW. Now waiting for CAD data of the caliper, then we'll go ahead and get a prototype bracket. Once that fits, we'll order 8 caliprs, 6 hubs and 8 wheels for the first complete conversion, which will take place in Romania Jan and I will hopefully fly there and we'll test the conversion on/with Darius' 6x6. Once that properly works, we will supply you guys with pictures and stuff to offer taking part in the first build group. We will not supply anyone with drawings of any kind, but we are happy to supply you with kits (we have been working for 1.5 years to pull this thing of, so you might understand that we'll not just hand out all our results). I am afraid though, that only complete kits will make sense, meaning full set of hubs, brackets and calipers and probably wheels, too. Though anyone can have his own wheels modified or built according to the rules in his country, our wheels are legalizable with german TÃœV, which makes them somewhat expensive. If you don't want or need that, feel free to get your own wheels made. As of now the first build group consists of 5 6x6 Volvos and we are open for more entries. All entries will have to be PREpaid, because that's what we will have to pay your kits of. Once this group is closed, we will collect orders again in the next build group until it makes sense - price wise. 3-5 cars are desireably to get decent pricing. Please don't ask for specific pricing just yet, let us first get this whoe thing straight, then we will see how far we can get to help everyone else get some nice brakes. One thing is very clear though: This setup has been designed to be as nice as can be, especially for heavy expedition vehicles. That of course contradicts with "as cheap as can be" If everything works out, this should be the most decent setup there is. Should. Let's see what surprises we'll have next........... Ciao, .martin

We do it just for the fun Ok this has been discussed in length elsewhere, so I'll keep it short: * you do NOT nessecarily gain more brake force, you gain however stability in terms of repeated braking under temperature * drum brakes full of mud and dirt are crap - they don't brake at all and additionally suffer damage unless you immediately open them for cleaning * I personally cannot live with automatic 4wd/6wd engagement, which is needed with stock brakes as the front drums cannot cope with 7o-80% brake force themselves. Since my application involves a lot of tar, this is not what I need. To brske up this system, you need capable AND temperature stable brakes in the front. * serviceability around the world is not a problem, i have disc brakes on other travel vehicles and never serviced them. Additionally you can't find Landrover everywhere, but toyota - so that argument might count in SOME parts of the world, but most certainly not in most. Additionally the conversation above employs 8 calipers of the same kind, and 6 discs of the same kind (on a 6x6). If i need a spare to reach whatever civilized town, i will just take one from my rear axles, as it's all the same - for a reason * i could go on and on, but need to sleep. Afterall this is a project that is supposed to lead to a vehicle close to my dreams, and not a OEM development project for military applications, so not everything needs to be most economical, it needs to be what I like the mist, what I tjink is technically the most useful etc. A stock volvo is the result of a military development process under political guidelines - that almost never leads to something that is technically pleasing all the way

It was for sale in Estonia.. The picture is from the advert. I have more pictures of the rig if you care....

This build has some very similar ideas to mine, wow! Seems like a proper disc brake is the only thing missing for you! )) Anxious to see your rear camper box evolve, I am still stuck with the base vehicle, but tend to cheer myself up with drawings of the future cabin - seemingly like you?

) thanx... We are aiming at a complete prototype vehicle asap to validate all concerns. Furthermore the wheels need to get sorted out and then there is the CTIS... which has also been designed into the system as an addon feature. Right now we're in the process of getting the machinery and tolerances properly set up and checked, so that we are able to move forward with production according to the same standards as series production would go on. Once the vehicle is up and running, we'll report back with the results Thanx, .martin

Yes, absolutely, that's what has been designed into the system from day 1. Front would be similar to this (slightly tilted in this image): The brake circuit layout of the Volvo would make it nessecary to introduce one (4x4) or two (6x6) pressure reduction valves into the rear brake line(s) to prevent overbraking of the rear axles, but that should be the simplest thing to do. Also that will allow you to disable to automatic engagement of 4wd/6wd on harder braking, thus allow more maneuverbility around tight corners downhill, especially on tar - one more reason for me to go away from stock drum brake system. The valve should be dimensioned close to this I think: The Pinzgauer 716/718 employs the H-layout, which would save you one reduction valve on the 6x6. The caliper layout would be the same on the volvo, though: 716/4x4 layout: 718/6x6 layout: The main brake cylinder of 28,56mm is believed to be sufficient according to my calculations so it should stay stock. Until I haven't verified this myself on a complete 6x6 conversion with my system, I won't bet on that, though. On a 4x4 I am 99% sure it will be enough volume-wise. .martin

Thanx, Kristian Please give me some more time to finalise this project - want to make sure everything really works as intended and convert a complete test truck to validate the system. Afterwards we'll think about series production. We're now 1.5 years into tis project, so I guess we're not in a really hurry now anymore.... ) Ciao, .martin

Hi Andreas, that would be really nice! Thanx! .martin

Can anyone recover the lost images in this thread? Did the CTIS actually work? Which rotary unit has been used? Thaaanx .martin

What's the full name of that fb group?

Yes, I was thinking about something like this: But with the above mentioned MEGI cones from Contitech. They even have a calculator to calculate resonance frequencies and choosing the proper shore value for your intended weight .martin

That would be interesting to see... I'm also planning on building a custom box on a 13 frame... currrently thinking about options to keep the frame flex from destroying my sandwich construction. 3 points would be an obvious solution, maybe also 4 points on flexible elements such as Conti Megi Konen:

Hey guys, I asked Volvo Göteborg about different towing capacities... here you go. Everything clear? .martin

Tight fit at the valve/caliper but hey, it FITs!! 9x17 "tiger2.0" steelies on TGB axle with Toyota disc brake conversion from Offroad Extrem! Tnx, Ralf Berlit.. .martin

Any more pictures of the actual conversion? Parts, on their own and mounted, experiences? Thnx, .martin

The brake servos are Lockheed Type 7 that have been used on several other cars including a few MGs etc. No need to remember numbers: You need Lockheed Type 7 servos They have been used in several other classic cars like MG, so there is quite some knowledge in the british classic car community and they have their suppliers. So this part is - as of now - nothing to worry about

Yes we have the same "problem" with the wheels/tires, but as long as they can spin freeling, the tread is fully covered and your speedo is adjusted to the new size, it is ok. As long as you are not going bigger than a certain percentage. Above that, they are entitlted to deny your certificate until you prove that the exhaust gas quality has not changed. WHich means: Very expensive measurements. With old cars this problem is not much of a problem, though, because they don't have EURO specs exhaust gas stickers anyway - so they don't really care. If they do, go to a different guy with better understanding ) Did you find the link of the TGB rim manufacturer!? ;D

The question is always: can you get them road legal in your country? If not, you can probably still use them if nobody cares, but in case of an accident there is no insurance coverage at all - that's how it works over here and that's why I went the hard way...

Only in Romania...

The wheel has landed! Pretty useful already! .martin

You turned them inside out?

Hi Darius, I know this one, but the company with the new rims would be much more interesting for me ) Thanx, .martin