MrRob's 2002 Silver Highway Star ...

farbow

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E51 Owner
#21
Just got the car back from my mechanic with most of the outstanding jobs done including full engine and drive train oil change, front drop links and rear bumpstops and airbags fitted.

The Murano items fit perfectly without having to trim the oe rubber cones on the bumpstops so would be a very easy driveway install with just one side at a time meeting to be jacked up to push the bags into the coil.

At max psi of 35 they only just come into contact with the oe bumpstops.

E51 Elgrand rear suspension by -BitchinRob ( http://MrRob.in )-


And unlike some other install I've seen don't jack the rear up too high at full pressure.

E51 Elgrand rear suspension by -BitchinRob ( http://MrRob.in )-


I've only driven it directly home but ride is great at 35psi and handling seems good too. I'll update further after I've had a play with various pressures.
Hi, just thinking of getting bags for our Elgrand, did you use the top and bottom spacers off the Murano kit and where did you route the filler hose to?

Thanks for any help you can offer.

Cheers,

Jonathan
 

MrRob_in

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#22
Just a update to show how the car stands with the Murano Air Lift 1000 bags in place. (And oe bumpstops that are also missing in the before photos) For the record these are much smaller than those other people have fitted (as far as I can work out) at 170mm x 102mm

Before
Our New 2002 Nissan Elgrand E51 Highway Star by -BitchinRob ( http://MrRob.in )-


With Air Ride 1000 at 35psi
E51 Elgrand rear suspension by -BitchinRob ( http://MrRob.in )-


Before
(null) by -BitchinRob ( http://MrRob.in )-


With Air Ride 1000 at 35psi
E51 Elgrand rear suspension by -BitchinRob ( http://MrRob.in )-


Before
(null) by -BitchinRob ( http://MrRob.in )-


With Air Ride 1000 at 35psi
E51 Elgrand rear suspension by -BitchinRob ( http://MrRob.in )-


I think the car is sitting more or less at standard height now so it will be interesting to see if it drops significantly when I let pressure out. But to be honest there is no need as the car is as smooth as my last fiftyone over the rubbish potholed lanes round here. At least the back end is ...

I still have a rattle from the front ... really wish I'd just replace all the bushes, ball joints and track rod ends too in one hit as I originally intended, but was talked out of by local garage that I think just don't want to work on my odd vehicle(s).
 

MrRob_in

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#23
Hi, just thinking of getting bags for our Elgrand, did you use the top and bottom spacers off the Murano kit and where did you route the filler hose to?

Thanks for any help you can offer.

Cheers,

Jonathan
Kit only comes with bottom spacer as per http://forum.elgrandoc.uk/index.php?threads/mrrobs-2002-silver-highway-star.4453/#post-37331

They only just touch the cone of the bump stop when fully inflated so shouldn't cause and problems as most of the time they don't need to be inflated (unless you run full loaded all the time) but the bags are only £100 to replace anyway so much cheaper than the firestone based Murano / E51 kits from airbagman in Australia.

I asked my mechanic to keep fitting valves simple so bags and valves can be removed/ replaced easy and we settled on a bracket hung off the towbar under my fog light as it's close to the 12v socket in boot if I want to use compressor instead of manual pump.

I'll post photos tomorrow if I remember ;)
 

sitting_duck

Well-Known Member
#24
Love the wheels on this, and the colour, and the de-badged rear, and the fogs, and the exhaust......

Anyhoo - those wheels, are they OE wheels? What are they off?
 

farbow

Active Member
Premium Member
E51 Owner
#25
Kit only comes with bottom spacer as per http://forum.elgrandoc.uk/index.php?threads/mrrobs-2002-silver-highway-star.4453/#post-37331

They only just touch the cone of the bump stop when fully inflated so shouldn't cause and problems as most of the time they don't need to be inflated (unless you run full loaded all the time) but the bags are only £100 to replace anyway so much cheaper than the firestone based Murano / E51 kits from airbagman in Australia.

I asked my mechanic to keep fitting valves simple so bags and valves can be removed/ replaced easy and we settled on a bracket hung off the towbar under my fog light as it's close to the 12v socket in boot if I want to use compressor instead of manual pump.

I'll post photos tomorrow if I remember ;)
Thanks, that's brilliant!
 

MrRob_in

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#27
Love the wheels on this, and the colour, and the de-badged rear, and the fogs, and the exhaust......

Anyhoo - those wheels, are they OE wheels? What are they off?
Fuga 450gt about 2005-7 I think, only issue is ET47 means 235/50r18 tyres rub on something at full lock ... need to sort some bolt on spacers to fill the arches now :)
Yep I massively over paid at Auction coz I fell for uts looks too ;) but I'm happy at just over £6k now with just front suspension clunk and those wheel spaces to sort for now ...
 

farbow

Active Member
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E51 Owner
#28
Yep, these are the guys I am talking to and they seem to know their stuff !

Although they are recommending going for a slightly narrower bag, so it doesn't bulge out between the spring so much, and either a plate across the top or trim the bump stops back to get a wider load area. I am definitely going to get a set from them after looking at your setup which is exactly the problem we have with ours!

Thanks for all your help and details of your build.
 
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MrRob_in

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#29
Yep, these are the guys I am talking to and they seem to know their stuff !

Although they are recommending going for a slightly narrower bag, so it doesn't bulge out between the spring so much, and either a plate across the top or trim the bump stops back to get a wider load area. I am definitely going to get a set from them after looking at your setup which is exactly the problem we have with ours!

Thanks for all your help and details of your build.
I note your comment re that fact that by the importer's measurement instructions the Murano kit airbags are too wide but Murano springs are the same diameter as e51 (afaik) and Air Lift supply the wider bags for them. My understanding is that it is the bulge between the coils and not the top and bottom of the bag that supplies the 'spring' for a good ride rather than the top and bottom of the bag acting taking the forces at this means it acts more like a bump stop with less linear spring rate ... rather like bouncing a balloon rather than squeezing it.

Ie for max ride comfort you want wide short bags (they don't even need to touch bumpstops or spacers at both ends of coil) and for max load carrying and / or ride height increase you'd spec longer narrow bags (assuming same bag load specs).

I may well be wrong but this Murano setup rides far better than I expected. (Based on experience with my Chevy van Air Lift's LoadLifter 5000 setup that's much harsher)
 
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farbow

Active Member
Premium Member
E51 Owner
#30
I note your comment re that fact that by the importer's measurement instructions the Murano kit airbags are too wide but Murano springs are the same diameter as e51 (afaik) and Air Lift supply the wider bags for them. My understanding is that it is the bulge between the coils and not the top and bottom of the bag that supplies the 'spring' for a good ride rather than the top and bottom of the bag acting taking the forces at this means it acts more like a bump stop with less linear spring rate ... rather like bouncing a balloon rather than squeezing it.

Ie for max ride comfort you want wide short bags (they don't even need to touch bumpstops or spacers at both ends of coil) and for max load carrying and / or ride height increase you'd spec longer narrow bags (assuming same bag load specs).

I may well be wrong but this Murano setup rides far better than I expected. (Based on experience with my Chevy van Air Lift 2000 setup that's much harsher)
That is very interesting and maybe the reason why you don't need a spacer at the top as the bag is effective, as you say, all the way up the spring rather than just the weight being taken at the top and bottom!

As you say, either way, the bags are only £100 anyway, so if fitting them one way or the other shortens their life, then hardly a huge amount to replace them!

Cheers
 

MrRob_in

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#31
That is very interesting and maybe the reason why you don't need a spacer at the top as the bag is effective, as you say, all the way up the spring rather than just the weight being taken at the top and bottom!

As you say, either way, the bags are only £100 anyway, so if fitting them one way or the other shortens their life, then hardly a huge amount to replace them!

Cheers
It also means that they are a very simple driveway diy install requiring only axle stands and pry tool to get bags in coils ... only the valve mountings require thinking about ;)
 

Karl

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#32
I love that the pictures are all taken in the same place and that the before is clean, and after is filthy! :rofl:

Looking good @MrRob_in!
 

MrRob_in

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#34
... and where did you route the filler hose to?
I remembered :)

E51 Elgrand rear suspension - Air Ride airbag valve bracket by -BitchinRob ( http://MrRob.in )-


Sorry about filthy car I upped clarity of pic to show fitting so it looks even dirtier ;)

Today's mod is self explanatory... they were meant for the wife's RAV but I fitted them to the fiftyone while she was shopping. :D

E51 led side light upgrade by -BitchinRob ( http://MrRob.in )-


E51 led side light upgrade by -BitchinRob ( http://MrRob.in )-


E51 led side light upgrade by -BitchinRob ( http://MrRob.in )-
 

MrRob_in

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#35
After I washed the car yesterday I let the rear airbags down to 15 psi and the top of the rear arches fell from 74.5 cm to 72 cm from the ground and looks to be at about standard Highway Star height to my eyes.

2002 Elgrand Highway Star (oe ride height) by -BitchinRob ( http://MrRob.in )-


More importantly running light with just old dog in boot and young dog in middle and wife and I up front the ride has returned almost* to the level of comfort we had in the VG. There is noticeably more roll in corners so it's a far less sporty drive. Day to day that's a good thing as comfort in my main reason for having a 51. But if I feel the need to go for a blast (or tow a trailer or carry some rubble) I can pump up the airbags to firm things up.

Thankfully the empty airbags do stop the suspension bottoming out over even over the most severe undulations (rubbish lanes, speed bumps and hump back bridges). So I have all the adjustability I need in my rear suspension for £100. I'm very happy I went for these over HD springs.

*I need to sort the clonks from the front end now.
 

Christopher

Well-Known Member
Premium Member
#36
After I washed the car yesterday I let the rear airbags down to 15 psi and the top of the rear arches fell from 74.5 cm to 72 cm from the ground and looks to be at about standard Highway Star height to my eyes.

2002 Elgrand Highway Star (oe ride height) by -BitchinRob ( http://MrRob.in )-


More importantly running light with just old dog in boot and young dog in middle and wife and I up front the ride has returned almost* to the level of comfort we had in the VG. There is noticeably more roll in corners so it's a far less sporty drive. Day to day that's a good thing as comfort in my main reason for having a 51. But if I feel the need to go for a blast (or tow a trailer or carry some rubble) I can pump up the airbags to firm things up.

Thankfully the empty airbags do stop the suspension bottoming out over even over the most severe undulations (rubbish lanes, speed bumps and hump back bridges). So I have all the adjustability I need in my rear suspension for £100. I'm very happy I went for these over HD springs.

*I need to sort the clonks from the front end now.
That looks so good ya know. Ain't got mine yet but I love Elgrands!
 

MrRob_in

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#37
Front end klonks have more or less been fixed with fitting the new anti roll bar bushes I'd bought previously. Oddly it's also massively reduced the curtain rail / trim panel rattles from driver's side sliding door.
 

Andy916

Well-Known Member
Premium Member
#38
Just got the car back from my mechanic with most of the outstanding jobs done including full engine and drive train oil change, front drop links and rear bumpstops and airbags fitted.

The Murano items fit perfectly without having to trim the oe rubber cones on the bumpstops so would be a very easy driveway install with just one side at a time meeting to be jacked up to push the bags into the coil.

At max psi of 35 they only just come into contact with the oe bumpstops.

E51 Elgrand rear suspension by -BitchinRob ( http://MrRob.in )-


.
Rob, did your mechanic have a bit of a performance fitting the bags? I've got the same ones and, following the instructions, have got one bag inside the spring. However with the 10cm width being quite big for the spring I can't straighten it out. At moment can't get the hose on either (very fiddly in that recess), otherwise I'd have put some air in to push it straight. Going to have to get my friendly mechanic in cos this is isn't an easy driveway install, for me at least.
 

MrRob_in

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#39
Rob, did your mechanic have a bit of a performance fitting the bags? I've got the same ones and, following the instructions, have got one bag inside the spring. However with the 10cm width being quite big for the spring I can't straighten it out. At moment can't get the hose on either (very fiddly in that recess), otherwise I'd have put some air in to push it straight. Going to have to get my friendly mechanic in cos this is isn't an easy driveway install, for me at least.
TBH he had it in bits to put the bumpstops in, but he's done loads of airbags before and I'm sure he mentioned he warms them up a little to make them more supple and connected the air hose before insertion.
I'll amend my 'easy driveway install' to 'easier than fitting new HD springs' ;)

Sorry if my advise/comments mislead.
 

Andy916

Well-Known Member
Premium Member
#40
It's the airlift instructions that are faulty tbh. No mention of heat, and their airline install description is a nonsense as, irrespective of vehicle, there is no room to slide the clamp up into the spacer hole even if you managed to get the hose on. They've been selling these things for 50+ years ffs. So annoyed with myself for just following the steps and not anticipating the problems that are so clear now.

Van immobilized on driveway until I can get the damn thing out now, which probably needs the lower damper mount removing to get more droop. Have had less trouble swapping springs before now.

TBH he had it in bits to put the bumpstops in, but he's done loads of airbags before and I'm sure he mentioned he warms them up a little to make them more supple and connected the air hose before insertion.
I'll amend my 'easy driveway install' to 'easier than fitting new HD springs' ;)

Sorry if my advise/comments mislead.