Those who run LPG converted 2.2's

[FabS6]

I have my s6 running on lpg... It is great. I did a month ago 1000km with only 68€ (0,66€/lpg litre) with a 300-320bhp 2.2t k2470. Engine bay image attached.

Unfortunately I am currently under a bad doubt if to keep my s6 and spend 2000€ to legalize it in Spain (still have Italian lic plates)... or to buy a fully equipped 2.5 AEL quattro a6, break the s6 to make the TDI with a S6 look (suspension and brakes included). It is so frustrating this doubt

[doncecone]

Hana Gold A+ at 1.4 bar.

[diesel des]

What injectors are you running?

[doncecone]

I've converted RS2 spec S6 with 2xAC Stag AC-01, Hana Gold and AC Stag ECU. Car is rated 300 whp and 500NM. Run to redline on LPG. It has 2 probes in the LPG tank. Best idle is achieve drilling the iM close to the petrol injectors and using 8 cm extension which inject the LPG close to the petrol injectors.

[diesel des]

No problems

[hunker7]

Yes when upgrading power go for bigger injectors than rs2. 440cc I think is perfect for 350 to 380 bhp.

Also use a wideband lambda kit to help dial it in and don't set it too rich on gas at full power. 12.5:1 is plenty rich enough on lpg.

I'll keep that in mind. You will most likely have a PM from me when it comes to calibration.

[diesel des]

Yes when upgrading power go for bigger injectors than rs2. 440cc I think is perfect for 350 to 380 bhp.

Also use a wideband lambda kit to help dial it in and don't set it too rich on gas at full power. 12.5:1 is plenty rich enough on lpg.

[psiconauta911]

Those petrol injector spacer things mess with the petrol injector spray pattern and can cause rough running.

It's worth just emailing one of those supplier's with a list of what you want and to confirm the parts are compatible.

Didn´t thought of that but it makes sense, instead of spraying into inlet manifold they will be partialy spraying into the adaptor walls!

[hunker7]

I would remove the restrictions and try calibrating it in. Should be fine.

Byd1380 on here also has a urs6 on lpg and uses Kme gold and magic jet on a volvo k24 turbo and is at about 350bhp. His only issue is his rs2 injectors being near max and causing issues.

Calibration will be the hard part to me I think. Just got an email back from LPG site and they said the ecu, reducer and injectors are all compatible so good so far. Once I get back to Leeds I want to see what diameter tank I can fit in the spare wheel well and then try finding the tank and appropriate multiValve.

So when I go for more power, I should get injectors that wouldn't be running near 100%?

[diesel des]

I would remove the restrictions and try calibrating it in. Should be fine.

Byd1380 on here also has a urs6 on lpg and uses Kme gold and magic jet on a volvo k24 turbo and is at about 350bhp. His only issue is his rs2 injectors being near max and causing issues.

[hunker7]

Those petrol injector spacer things mess with the petrol injector spray pattern and can cause rough running.

I was thinking that, as injector would be sitting higher then usual

Those magic jet injectors are rated at upto 75 bhp each with the biggest restrictor. I run mine with no restrictions and they seem to be able to match 630 cc petrol injectors easily.

Liquid injection is very promising but the pump always let's the system down.

So what sort of restrictor should I use?

Also what spec power wise is your car? Lpg kits don't like running properly if your maxing out the petrol injectors your using. So when the petrol injectors system get to 100% the lpg system thinks there is a fault and puts you back on petrol. Happens on rs2 injectors at 350 to 400 bhp.

Mine is standard at the moment, will be remapping in coming month, and then start collecting parts for K24-7000 turbo conversion. Just want to make a setup that will be ok with standard power and when I up the power later on.

[diesel des]

Also what spec power wise is your car? Lpg kits don't like running properly if your maxing out the petrol injectors your using. So when the petrol injectors system get to 100% the lpg system thinks there is a fault and puts you back on petrol. Happens on rs2 injectors at 350 to 400 bhp.

[diesel des]

Those magic jet injectors are rated at upto 75 bhp each with the biggest restrictor. I run mine with no restrictions and they seem to be able to match 630 cc petrol injectors easily.


Liquid injection is very promising but the pump always let's the system down.

[diesel des]

Those petrol injector spacer things mess with the petrol injector spray pattern and can cause rough running.

It's worth just emailing one of those supplier's with a list of what you want and to confirm the parts are compatible.

[psiconauta911]

you´re welcome!

Pleasure to be helpfull!