Well heres an interesting scenario i HOPED would happen... straight lpg has gained me power even with a CRAP tune and lean spot.

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Even with the lean out at 4000 odd rpm with more tuning and fine tunig i should see a marked increase in power and driveability (although reves smooth and without hesitation, just a bit slower than petrol through the rev range).

This is what modding is all about and a good back to back performace meter

Other good point to note is it revs past 6000rpm now (6300 he took it to), not like before max 5400 or so before breakdown

Nice work...

I have heard of LPG gaining KW's over petrol, but it has always been with turbo engines, as it brings the intake temps down, have not seen this in atmo engines.
But any power gain with cheaper running costs is is a plus.


For your final tune, try to get back onto the Dyno that you did your before power run on.

first dyno was over 1 year ago now so guessing it would be out of whack by now too

mik are you sure thats a lean spot coz in your petrol version theres a big fat rich spot...

on petrol was super rich, on lpg he said mega lean, so much so he almst bailed on the first run at 4000rpm but decided to see if it richened up a bit which it did.

Mik is it dual fuel with the twin sus or just straight LPG?

straight gas D

I looked at your album and saw the sus all hooked up to fuel I thought? oh well
Have you thought on running 2 modified throttle bodies instead of sus?

nah sus act as the throttle bodies... both of them