ScoobyNet.com - Subaru Enthusiast Forum

ScoobyNet.com - Subaru Enthusiast Forum (https://www.scoobynet.com/)
-   General Technical (https://www.scoobynet.com/general-technical-10/)
-   -   H6 lpg (https://www.scoobynet.com/general-technical-10/1005697-h6-lpg.html)

Christofy 05 June 2014 10:38 PM

H6 lpg
 
Hi all

Bit of help please

Can a 2002 ez30 h6 run OK on lpg if flashlube is used to stop valve seat recession

Thanks Chris

Welloilbeefhooked 05 June 2014 10:49 PM

All I have ever seen on here about lpg is conflicting reports from people who know someone who had it fitted.

I fitted lpg to my 98 wrx which ran perfectly fine on gas with flashlube. I cant remember how many miles I did on it but it never skipped a beat.

I also converted a bmw 320, a lexus is200 and bmw 330. All of which ran fine.

Christofy 05 June 2014 11:03 PM

Thanks for reply

Yea getting a definitive answer is going to be difficult I suspect.

Henrik 06 June 2014 06:29 AM

There's at least a couple of members running new age wrxs on LPG as well, but I can't remember their usernames.

Granted the wrx engine is 4 pot, of course, but should give some idea as to suitability.

I seem to recall JGM wrote on pistonheads that he had mapped a couple of cars with LPG as well, with decentish results.

These guys are doing Subaru conversions incl h6, so it's definitely possible: http://www.ozonlpg.com/lpg_conversion_subaru.html

This thread has some decent info as well: https://www.scoobynet.com/showthread.php?t=849493&styleid=26

fawor 06 June 2014 07:08 AM


Originally Posted by Christofy (Post 11444026)
Hi all

Bit of help please

Can a 2002 ez30 h6 run OK on lpg if flashlube is used to stop valve seat recession

Thanks Chris

my03 wrx run on lpg (4 years btw) without flashlube
flshlube is a myth ,no worth a money on 4 pot no idea about h6
it stops nothing just cooling down cylinders but does proper job only on one cylinder
use proper oil and it will be fine:thumb:

ditchmyster 06 June 2014 07:18 AM


Originally Posted by fawor (Post 11444112)
my03 wrx run on lpg (4 years btw) without flashlube
flshlube is a myth ,no worth a money on 4 pot no idea about h6
it stops nothing just cooling down cylinders but does proper job only on one cylinder
use proper oil and it will be fine:thumb:

Well if it can be set up to cool number 4 or is it 3 :wonder: next to the turbo then maybe it is worth it.

What kit did you use?

Christofy 06 June 2014 08:44 AM


Originally Posted by ditchmyster (Post 11444118)
Well if it can be set up to cool number 4 or is it 3 :wonder: next to the turbo then maybe it is worth it.

What kit did you use?


It is normally aspirated mate

Christofy 06 June 2014 08:46 AM

Thanks Henrik

The engine is actually in a vw T25, I installed an ej22 into my last one and was also great. Brilliant engines!!!

Christofy 06 June 2014 08:57 AM


Originally Posted by fawor (Post 11444112)
my03 wrx run on lpg (4 years btw) without flashlube
flshlube is a myth ,no worth a money on 4 pot no idea about h6
it stops nothing just cooling down cylinders but does proper job only on one cylinder
use proper oil and it will be fine:thumb:

I believe t he Flat 6 lums do suffer from vsr. cant find much out about it for t he H6

fawor 06 June 2014 09:29 AM


Originally Posted by ditchmyster (Post 11444118)
Well if it can be set up to cool number 4 or is it 3 :wonder: next to the turbo then maybe it is worth it.

What kit did you use?

Yeah i know ,ive been thinking the same, but flashlube works only without turbo spool-air pressure,than there is no sense to fit it.
the only problem ive got - week before and after my battery die(8years old)
it needs 5sec to start engine when switched off on lpg, before I turn it off needs switch on petrol than it starts straight.
i did few longer runs on petrol but it did not help
i would not cry when it pops next year - sti time:luxhello:
i would not fit lpg if i would buy sti instead wrx ppp probably
in the other hand if i could have 350hp on lpg i will do it even for spec c:lol1:
kit :wonder: -i know its stag 300 ecu fitted by lpg wales with live warranty:thumb:

Originally Posted by Christofy (Post 11444146)
I believe t he Flat 6 lums do suffer from vsr. cant find much out about it for t he H6

vsr could happen even on petrol, You need to have good map-correct mix lpg to air, thats all.
in H6 its not about vrs, its about valve regulation

Henrik 06 June 2014 01:36 PM


Originally Posted by fawor (Post 11444164)
Yeah i know ,ive been thinking the same, but flashlube works only without turbo spool-air pressure,than there is no sense to fit it.

There are flashlube systems that don't need vacuum to operate - i.e. they use a small pump to add the flashlube.

fawor 06 June 2014 02:07 PM


Originally Posted by Henrik (Post 11444268)
There are flashlube systems that don't need vacuum to operate - i.e. they use a small pump to add the flashlube.

ok,lpg operate/burn at about 30-50 degrees more than petrol thats nothing for engine , most important is map-mapper as usual:thumb:
after 5years with lpg i will say the same im sure- my03 wrx ppp dont need flash lube for lpg kit as it does not work like it should


All times are GMT +1. The time now is 07:37 AM.


© 2024 MH Sub I, LLC dba Internet Brands