3f petrol motor fuel consumption

[Hardzy]

what sort of kms do you get out of these motors. just trying to see if my motor needs a big tune up. i went through half a tank and it drove 160 kms. is this the sort of milage the rest of you get with these things?

[HANCOCK]

i get about that around town with 35"s on.

[Toyo80]

what sort of kms do you get out of these motors. just trying to see if my motor needs a big tune up. i went through half a tank and it drove 160 kms. is this the sort of milage the rest of you get with these things?

I get around 200 k's for a half tank with 33's. It may be time for a tune , what are you running ignition wise standard points or electronic ignition?

[Shieldsy]

with 35s i get about 350 outa 80 L, cant expect much with a 3F tho

[Toyo80]

From what i can tell from reading lots is you will not get much better with a 4.5 injected either.

[dow50r]

They both return close on 14 mpg or 20l/100kms, the 4.5 will do the 100kms alot faster, it doesnt seem to matter how you drive them either, max torque is 3400 rpm, who ever gets the needle that far? they r not usually driven like that, but if they r, same economy.....go figure
A manual on the highway doing 90km/hr at 2300 will return 16l/100 in good tune.
Andrew

[Thommo 73]

i use to get about 2 tanks to the km

[hulsty]

Mine on 33''s gets about 22L/100km mo matter how you drive it in 2wd

[lokka]

i use to get about 2 tanks to the km

Yep sounds about avrage

My 60 running 32's would do about 20Lper 100K no matter how or were it was driven and i had it ruuning sweet 80L tank would get me 430K on the hwy thats my best effort and i wasent driving slow either

[Beato]

I used to get about 250km out of a full tank in my FJ75 with 3F.
I ditched the 3F and fitted a 1UZ V8 and now get 400km out of the same tank but everything happens a lot faster now....

[Hardzy]

was it hard to do the engine conversion. was thinking of doing one but hate fuel injected cars out in the bush.

[Beato]

Depends on your capabilities I guess, I did the conversion at home with a few mates, only paid for someone to do the wiring.

Now why would you hate Fuel injected cars in the bush???
I hate carbys...

Last weekend I drove through a river crossing (snorkel not connected) where the water came up over the bonnet. The 1uz ran on 7 cylinders for about 1km then all good.

[Thommo 73]

im with beato. i put the 3f on the boat for an anchor where it belongs and put a 1uz in.......while the economy is heaps better ive never lifted my foot to see how good it is

[Hardzy]

i hate computer controlled cars because they are a pain and usualy require a tow when they stop on the side of the road or in the bush. carby cars can nearly always get you beack home.
with the 1uz. do you keep the same gearbox, clutch etc? wled on new engine mounts or are they just adapters to bolt it up?

[Beato]

Yes same gearbox (H55F). I used a dellow conversion kit that came with a flywheel and clutch to suit.

There seems to be a lot of debate about CRS v Dellow v Marks adaptors for conversion gear but all I can say is I have had no dramas with mine.

With mine we cut the original engine mounts off the chassis and welded on new ones made to suit the soarer engine brackets coupled with the landcruiser rubber mounts (hope that makes sense).

[zoook]

20lts to the hundred around town with 33s on ....mines got 300000 on it and still going strong keep changing the oil and keep coolant up to it .

[Hardzy]

yeah the 3f seem to be a good motor. i picked up mine from a mechanic who had the logbooks. he bought it at 154000kms with all services done, he kept a record of services and maintance and the motor has 472000 and still sounds new. just goes to show you keep the services up to date and they will last forever.

[bad_religion_au]

i hate computer controlled cars because they are a pain and usualy require a tow when they stop on the side of the road or in the bush. carby cars can nearly always get you beack home.
with the 1uz. do you keep the same gearbox, clutch etc? wled on new engine mounts or are they just adapters to bolt it up?

so the Conrods never fail on a carb'd car? pistons never crack? heads never crack? radiators never split? alternators/batteries never die? ignition coils/points never cark it?

never had an EFI car fail on me... had plenty of carbies die tho.

[Hardzy]

yeah all those things happen. but most of the time you can repair a carby car. no sensors or computer controlled safety sensors etc. just easier and quicker to diagnose a problem. well, for me anyway, i dont vnture into the modern computer controlled engines too much, hense the reason i wouldnt have a clue what to do if one died on me in the bush

[redhotzook]

well i get 28.5 litres to the hundred in my 3f, with 35's
i tuned the whole thing, carby, points, tappets etc etc and still 28.5


so im putting a 350chev in with dual fuel (gas and petrol)

figured if im going to use so much fuel, i may aswell do it with a big thumpin v8 ahahha