Water injection as alternative to flashlube

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Joined: Tue Nov 18, 2008 2:32 pm
LPG System: for Diesel

Water injection as alternative to flashlube

Post by Ahmad » Thu Dec 04, 2008 4:07 pm

Hi guys
I have converted my BMW E28 2.5L, fuel injection, to LPG in Aug.2007. Earlier I have installed the Water injection system.
Now I am using both of them. The question is; Do I need to install a flashlube kit ? According to my info the valve and the valve seat will be affected in high temp as runing dry when switching to LPG. The water injection will cool down the intake manifold, cylinder head, combustion chamber and it's related parts, so it can help to save the valve seat and the valve from damage , please correct me if I am wrong :?
Best regards

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Re: Water injection as alternative to flashlube

Post by mak-uk » Thu Dec 04, 2008 5:15 pm

Hi Ahmad,

Didn't the E28 have pretty hard valve seats anyway? I've never seen a BMW which has been converted to run on LPG installed with Flashlube.
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2001 BMW 540i Auto Sport Saloon
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Re: Water injection as alternative to flashlube

Post by Richy_Boy » Thu Apr 16, 2009 10:35 pm

It's not a matter of cooling, more of lubing.

Water injection is great for cooling intake tempretures for turbo installations, but it's not going to do anything for valve recession.

Own: '02 Alpina B3S - 305bhp / 270ftlb
Sold: '97 Nissan 200sx S14a - 295bhp / 310ftlb

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