ustolemyname??stevieturbo

iTrader: (1)

Whilst LPG will make the situation worse, valve seat recession even on petrol isnt totally uncommon, especially with normal UL fuel.

Some seem to suffer more than others though. But LPG will definitely be worse.

Jolly Green Monster

iTrader: (4)

My concern when ever I see an LPG setup on a turbo car is that the flash lube is sucked into the manifold. Therefore from 0boost up it is not consuming any flash lube.

Of the handful of installers I have spoken to they have a good knowledge of where to mount the kit and what kit to spec for a car and different tanks but ask the question if the flash lube lubricates the valve seats when it is being burnt only or if it builds up a film etc the answer is normally vague..

so I would myself only use lpg on cruise.. install a system that turns off from 0boost and reverts to petrol.. I havent seen a setup that goes back to lpg after this so annoyingly you have to then turn the lpg back on but I am sure this might be possible.

The lpg ecu's I have see are fairly robust with the ability to mimic the standard ecu well.

Agree that valve seat errosion is an issue on the newage onwards engines anyway but it definitly seems to be accellerated by lpg.

Simon

Chris Tasker

its all very well quoting what an LPG conversion specialist tells you but its a bit like listening to any salesman. my conversion was done by the govt preferred conversion specialist - greenfuels - and they gave me the same assurances. sadly, hindsight is perfect vision. apparently even subaru in italy ( who fitted BRC systems themselves) have had to rebuild engines after valve seat regression. wouldnt mind seeing figures on the UK sourced subaru conversions now that they are all 5-6 yrs old ?

jura11

iTrader: (7)

Agreed with point which pointed out Simon@JGM about the Flash lube kit,if you are running(or will be running in future) "vacuum-manual Flashlube kit" this will not protect the valves against damage as Simon said vacuum Flashlube kit as the boost will blow the lube back into the bottle rather than suck it in.

If you are want some sort protection You will need the electronic version that injects the Lube into each cylinder rather than letting the vacuum draw it in,something like this

http://www.gasit.co.uk/index.php?act...&productId=120

We are run LPG on our wagon before,but after 10k miles engine has have low compression which I don't think has been down to the LPG,I know few friends running LPG on their Outback/Legacy or Impreza although on the Non-Turbo cars without the problems at 160k miles

Many people on turbo Impreza/Foresters or any other turbo cars try to fit Vacuum Flash Lube kit,which is useless on turbo cars,this can be down to the price for Vacuum Flash Lube kit against the Electronic Flash Lube kit or LPG installer


Jura

Jolly Green Monster

iTrader: (4)

I didnt quote anyone.

They all think they know because they have done an installation course and its working on this car and that car but the effects dont rear their head until later down the line.

The fact the flash lube isnt injected in on 99.9% of installations and some people claiming you dont need flash lubr is just wrong imho.