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PostPosted: Wed Dec 07, 2011 10:49 am 
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Hi ppl,

I would value your advice on fitting a flash-lube based system to my BMW E90 2007 318i which was professionally converted to LPG with a Versus LPG system 18 months ago by a UKLPG certified and BRC authorised specialist.

The Versus system has been a good match for my car and i can achieve 320 miles on a long run from 48 litres of LPG (tank capacity 60litres)

Even though i am aware BMW and German engines have strong valve heads i would still like to have a flash-lube system fitted to my car for some additional piece of mind, especially as my car has used some oil recently.

I have purchased a VAP system (one of the more expensive systems i could find online!) and am looking to fit it soon. I would just like some guidance as to where precisely to drill the hole in the manifold. Presumably it needs to be at a common point to enable the lubricant to serve all 4 cylinders, which makes it further forward in the manifold?

(I have already got the right sized drill bit for the kit.)

I did ask my LPG specialist to fit it but he said it wasn't really necessary on german cars, and if i really wanted to fit it, its only a DIY job..

Hope some of you can help. 8)

SnoozyBMW


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PostPosted: Wed Dec 07, 2011 6:35 pm 
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Ive not fitted a vap version but assume its got to be a flashlube clone. So fit it the inlet say 50 mm from the throttle body. Or wherever you can get close before it branches off. Wiring is all pretty simple. Earth, connect it to the positive feed on the solenoid from the reducer. You will also need to find the pulsing side of the gas injectors. How are you going to find that ? I use a power probe or a multi meter that's an automotive one that is capable of showing rpm. Anyway that's your problem. And working out where to fit the bottle.

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PostPosted: Wed Dec 07, 2011 6:56 pm 
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Thanks Tubbs for your help.

So when you say 50mm from the throttle body, is that 50mm below, above or to the side of the throttle body?

Why do i need to know about the pulsing side of the gas injectors? How will this affect the installation of the VAP system? How can these kits be labelled "DIY" if such investigations need to be carried out?! I think i've found a reasonable place to install the reservoir.

Do you think i am being overly cautious fitting this system this to my car ? :?


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PostPosted: Wed Dec 07, 2011 7:10 pm 
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50mm downstream of the throttle body, preferably in the top of the manifold as oil is heavier than air and drops go downwards.

If the VAP system is a Flashlube clone, it probably needs a pulse feed form the gas injectors so you need to be able to find it to give it one. Kits such as this are labelled as DIY because there's no great engineering skill required to fit it and it should be within the capabilities of an average DIYer. However, they do expect you to know what you are doing.

Earlier BMW engines were bomb proof and have gone on to do mega miles on LPG. Not so sure about the newer ones but if your local expert says it doesn't need it, it probably doesn't.

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PostPosted: Wed Dec 07, 2011 7:36 pm 
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Thanks Gilbertd,

From memory i didn't see any cable that could attach for a pulse feed. There was just a cable that attached from the reservoir to the manifold with a drip rate setting to calibrate. There was also some electronics to fit to install an led on the dashboard as to when the reservoir was empty ( i suppose fitting this is optional).

The kit was supplied by Norgas, and can be viewed here:

http://www.ebay.co.uk/itm/VAP-LPG-Valve ... 230e319bdb

So does this kit need a pulse feed or is that for the electronic flash lube kits?

Thanks for your continuing guidance :wink:


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PostPosted: Wed Dec 07, 2011 7:47 pm 
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Location: Ellesmere Port
It's not an electronic kit, it just uses the vacuum off the engine to pull the valve saver fluid in, the screw being the adjustment.

I have the same kit on mine, just be careful drilling and don't let any bits get into the engine.


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PostPosted: Wed Dec 07, 2011 8:01 pm 
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thanks sijones,

so how do we minimise the fine matter from the drilling from entering the engine ? Any tips?

Maybe just drilling a little at a time, stopping and clearing residue, drilling a little more and then clearing again? I don't suppose a magnet would help as the manifold is aluminium. :shock:

And just to clarify, I don't need to establish a pulse feed for this VAP kit ??

Thanks for your continued help


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PostPosted: Wed Dec 07, 2011 8:36 pm 
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Location: Midlands
Sorry , I must be mistaken, if it isn't electronic and has no integral pump then it won't need a feed from the gas Injectors. If you put some grease on the drill you should be able to keep most of the swarf from going into the plenm chamber when you drill it. As Gilbert says 50 mm downstream of the throttle.

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PostPosted: Thu Dec 08, 2011 6:07 pm 
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Ok thanks guys for your advice, i'll let you know the outcome in the next couple of weeks..

Incidentally sijones did you find the electronic led necessay for fitting, is it much extra hassle to fit - presumably drilling through the firewall which sounds slightly worrying. How far is your screw at the top screwed in to allow the lube drip rate - should it be something like 5 drips or 10 drips per minute?


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PostPosted: Fri Dec 30, 2011 11:22 pm 
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Just to let you know i got this fitted last week and it seems to be working ok. Thank you all for your advice.

Keeping a close eye on the dosasge; I've set the dosage to 10-12 drops per minute, and i set this after returning from a fairly long drive so the engine was warm..


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