Thread: 130 on portals

Originally Posted by TwoUp

Happy to share Champ, you must understand that what I have done in the past (Chev) has been a result of perservence and a K'n a lot of reaserach. I don't know maybe three years to have the motor. It may be the same for the driveline. Who knows?

I do not give a tinkers cuss about off subject info.

I am easily identified, can you be? Happy to share but............. You can PM me or post.

Regards,
PeterW

ummmm.... not really sure what you are getting at???

it was a serious question as it may pertain to me in the near future. would you prefer me to PM you?

cheers,
Serg

uninformred,
Yes PM is Ok and this thread is Ok just now. I have some info on the upgrade. It will take time. I have not any info back from Wolfgang at this time. I do however have two Eng persons avaialable for calcs etc. Reading Oilworkers post (in part) gives some hope. I do not have any info on how I would stress the drivetrain and the obvious height on braking issue. Loading at the stub is another issue. I do not want any guessig persons throwing away comments without calculations to back them up. They would need factual info that could be readily available and relied on.

I have been through a bit to get my vehicle where it is. This is a good vehicle and at time of writing am off the road (again) for upgrades. I have seperation issues.

Regards,
PeterW

Peter,

which calculations do you need?
From the data I have I can run just about any analysis on the computer and will have the Rhino at a military testing facility sometime next month.

All I need is your wishlist.

So long,

Robert

sounds great. But will those figures mean anything without stock numbers to compare to???

Id be looking at A frame ball joint load under acceleration and HEAVY braking.

same with radius arms at axle end.

bending stress put on axle case just outside spring mount.

rotational forces under HEAVY braking on axle flange mount where portals bolt on

cheers,
Serg

Okidoke,

will take a bit but can be done. It ain´t no magic nowadays

Cheers,

Robert

not here to hijack, and as twoup is in the process of doing his, do his requirements first

Serg

I may have missed it but what type of CV joints are used on this conversion?
I assume they would need to have a shorter outer shaft, or a plug in shaft like earlier RangeRovers and the KAM cvs with fusable outer shafts.
Whilst on the subject does anyone have details on the so called heavy duty cvs that Maxidrive offered with their portals? and are the cvs still available ?
wagoo.

Edit. just a laymans thoughts on stress calculations, but if a portal gives a 100mm height increase, wouldn't that be similar to having a 200mm larger diameter tyre, assuming wheel rim inset can be changed to bring scrub radius back to standard?

Originally Posted by wagoo

I may have missed it but what type of CV joints are used on this conversion?
I assume they would need to have a shorter outer shaft, or a plug in shaft like earlier RangeRovers and the KAM cvs with fusable outer shafts.
Whilst on the subject does anyone have details on the so called heavy duty cvs that Maxidrive offered with their portals? and are the cvs still available ?
wagoo.

Edit. just a laymans thoughts on stress calculations, but if a portal gives a 100mm height increase, wouldn't that be similar to having a 200mm larger diameter tyre, assuming wheel rim inset can be changed to bring scrub radius back to standard?

AFAIK, the MD portals only used RR cv's with their custom stub shaft (hytuff) to drive portal...they may have offered a anti burst ring, which was interference fitted to the outside of the cv bell...4140 I think???

123mm for MD....but yes 100mm would mean a 200mm tyre but still only 100mm height rise... someone smarter than me will explain scrub radius...but it obvisously was still ok as Mal found it no concern...an he would have DEFINITLY looked at it.

Serg

Ps he only runs stock LR rims on his vehicle no offset change...I dont think you could or want to space them further in than stock LR rims due to calipers etc... and as you have raised the COG you need to increase wheel track width for stability...123mm lift and 170mm track increase is pretty even...(As COG goes up you need more and more track width, more than the COG raise)