Quote Originally Posted by twisty View Post
*sigh* I've kept consumption figures for my rig since I got it.

My 4500 uses 30ltr per 100k's on lpg, more in low range. Always has. Two seperate lpg mechanics, two different dynos, regular service. Always told "yep, all good". Plugs and leads, the lot. I can tell when it needs a tune, economy improves and idle is rough.

When I ask about improving fuel economy I get told "Not much, they're thirsty buggers" and aftermarket ignition timing chips are "a waste of time" as it's mostly a mechanical system. I've got a mate with a 4800 and he gets about the same as me but with lpg vapour injection. When I asked about going to injection, "yeah ...sure, won't help much and $300 per injector + fit".

I read these consumption/economy threads front to back and try to follow any leads. Bigfella isn't the only one reporting figures I dream of and I wish I could pick the difference. Any ideas?
Best i ever got with my 4500 was 14.7l/100, i only have petrol no lpg and use 98ron i played with my timing and tps adjustment and now i average 15.8l/100. I think with an exhaust it might improve but like said earlier i'm going to try a snorkel and enclosed pod filter to see it than makes any difference. The bonus for the 4800 is that the timing is electronically controlled with the knock censor and the timing keeps changing all the time unlike our 4500 distributor having to be set to find a happy medium.