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2H Turbo/Na fuel economy and 2f LPG economy

Posted: Wed May 03, 2006 1:18 pm
by gearb0x
Hey

Im looking at buying a 60 series landcruiser to replace my supercharged MR2, the Mr2 cant tow shit and i cant fit anything in it.

The main reason i want the landcruiser is to tow my race car, at around ~1600kgs inc trailer.

I want to drive it daily so fuel consumption is paramount. I was wondering what figures 2H owners out there are getting with or without turbos. Highway and city driving. I am concidering turboing to make it slightly less slower, i can perform the whole conversion my self inc fabbing any piping so that is no problem. Im just wondering if the turbo will make for better or worse fuel economy. Obviously it will make towing less excruciating :D

I am also concidering dual fuel 2fs, so any figures for 2f's on LPG would be good too (i drove a petrol 2f auto for one month, and my wallet was hurting at the end, god dam they use some fuel, so only concidering LPG :D)

Any help in making my decision would be great

Regards,
Phill

Posted: Wed May 03, 2006 3:57 pm
by +dj_hansen+
If your going a tow rig, id get a late 90's 2.5TD disco... can pick them up for round $10k, and will give you better fuel economy than a 60s ever will... And they are rated tow at 3tonne.

And im a toyota man!

Posted: Wed May 03, 2006 4:07 pm
by gearb0x
Thanks for the tip, ill keep that in mind. Though im only really looking at spending ~$5k. Add to that i will never need to tow over ~2000kg anyway

Posted: Wed May 03, 2006 6:55 pm
by carts
OK. I had an 85 model HJ60. Before i turboed it, it used to average around 12L/100km on 35's.

When I turboed it, a mixture of country and city driving used to return about 11-12L/100km with significantly more power. It was pretty good.

Then I went wild, boosted it right up, and intercooled it. It got significant power gains again, but fuel economy started to drop. On the highway, it would use anything between 12.5L/100km to 14L/100km.

So in closing, after i first turboed it, i actually experienced better fuel economy and better power especially around town!

Posted: Wed May 03, 2006 7:25 pm
by Shadow
i dunno how carts driuves but with 33" tyres my hJ60 gives me 13l/100 when im driving like a 90 year old and mostly highway work

when im around town its 14l/100 or higher if i been in a hurry :P

Posted: Wed May 03, 2006 8:17 pm
by carts
Shadow wrote:i dunno how carts driuves but with 33" tyres my hJ60 gives me 13l/100 when im driving like a 90 year old and mostly highway work

when im around town its 14l/100 or higher if i been in a hurry :P
Are you turbo? If you flog it hard, it will use fuel. But driving normally will return relatively good fuel results. Other people, such as dumbdunce will verify my fuel economy.

I do maintain my vehicles mechanically well. For example, the 60 had fully recoed injectors in it, so it was running optimally.

If your 60 is blowing black smoke, it basically means you are pooring fuel right out your exhaust pipe!

Posted: Wed May 03, 2006 8:26 pm
by gearb0x
Sounds promissing, thats pretty much wanted to hear. Believe it or not 12ltrs/100kmh is about the same as what i use in my little 4 cylinder Mr2 :P Supercharger and a stock ECU thats tuned to over fuel like crazy does that :( it runs 9:1 AFRs on load on a dead stock healthy motor :S

Im planning at most 10psi with a not so crazy front mount intercooler, what boost were you running to get the better fuel ecconomy?

Phill :D

Posted: Wed May 03, 2006 9:17 pm
by Shadow
carts wrote:
Shadow wrote:i dunno how carts driuves but with 33" tyres my hJ60 gives me 13l/100 when im driving like a 90 year old and mostly highway work

when im around town its 14l/100 or higher if i been in a hurry :P
Are you turbo? If you flog it hard, it will use fuel. But driving normally will return relatively good fuel results. Other people, such as dumbdunce will verify my fuel economy.

I do maintain my vehicles mechanically well. For example, the 60 had fully recoed injectors in it, so it was running optimally.

If your 60 is blowing black smoke, it basically means you are pooring fuel right out your exhaust pipe!
nah its not a turbo

and only blows smoke hugh in the rev range (2500+)and generally oinly in 2nd and 3rd

could have something to do with the fact the engine's done 410thousand and never had the injectors out.

Posted: Thu May 04, 2006 5:39 pm
by carts
gearb0x wrote:Sounds promissing, thats pretty much wanted to hear. Believe it or not 12ltrs/100kmh is about the same as what i use in my little 4 cylinder Mr2 :P Supercharger and a stock ECU thats tuned to over fuel like crazy does that :( it runs 9:1 AFRs on load on a dead stock healthy motor :S

Im planning at most 10psi with a not so crazy front mount intercooler, what boost were you running to get the better fuel ecconomy?

Phill :D
I experienced the best fuel economy with around 8psi boost, and only a mild adjustment on the fuel delivery. It didnt go as hard as it did when intercooled and running 13psi, but it was still heaps better than when it was normally aspirated.

Posted: Thu May 04, 2006 9:55 pm
by RED
i got non turbo 2H and i get 700kms out of 90L which works out *does sums on calculator* 12.86L/100. WITH 7.50R16. I run injector cleaner through regulary and with 33x13.5 Mudzillas on i get 18L/100 (500km/tank). I'd love some tips on how to get those figures with the muds on :!: :!: :!: My car does NOT blow any smoke so i dunno, but i got a mate with a gq pootrol (imported and bought less than a yr ago)(4.2D) and he gets near identical figures to me. Just to throw something at ya :lol:

Posted: Thu May 04, 2006 10:44 pm
by vorno_18
well my petrol cruiser gets 15L/100kms on the highway and 17L/100kms around town

i have almost fitted the gas system to mine and im told by another fj60 LPG owner that he gets 10L/100kms highway and remember LPG is less then half price

so on fuel $30 gets 150kms

on gas $30 gets 600kms

get gas if your only towing for sure

Posted: Thu May 04, 2006 11:56 pm
by Shadow
vorno_18 wrote:well my petrol cruiser gets 15L/100kms on the highway and 17L/100kms around town

i have almost fitted the gas system to mine and im told by another fj60 LPG owner that he gets 10L/100kms highway and remember LPG is less then half price

so on fuel $30 gets 150kms

on gas $30 gets 600kms

get gas if your only towing for sure
10l/100 on LPG is not possible.

LPG has less energy content than petrol, so it shoulkd be closer to 20L/100.

Posted: Fri May 05, 2006 12:49 am
by sixdeetoo
diesel 61 and no turbo - yet ; but 11.8 fully laden and highway but oh so slow up good hills :cry:

driving in the burbs 13ish

using the chemtech stuff to winterise the fuel