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[cem_devecioglu]

about same for me, 2.2 has limited power anyway 

Extra weight over the boot helps traction though, and through the twisties its noticeably more stable!

cut 1/5 th of springs you wll see stability  but at the expense of horrendous comfort :-/

LPG is a free lowering kit, especially with a 90L tank. I really must replace the shocks as with full tank of gas, it can get a bit bouncy 

erm.. I mean bad comfort

[Lazydocker]

I don't notice any loss of power

[Kevin Wood]

calculating  difference not that easy..

Air fuel ratio is 14.7 in ideal conditions but for lpg the ratio is 17.1 and their calorific values depends on the type of fuel and mixture of LPG ..

By mass, that's correct, although at maximum power you need to be running about 12.5:1 on petrol for best power (and to avoid melting things) and the same goes for LPG.

A given mass of petrol takes a much smaller volume than a similar mass of LPG vapour, though, and this is what limits the power available from a conventional SGI system.

so the only real way is to check on dyno for some specific LPG and fuel.. 

Agreed. I need to get my little black box out and test it on the A32 my private test track one day. It's certainly a small enough power drop that it's not noticeable when driving.

Kevin