308 VS 1UZFE

[PASSNBY]

I have a 308 in my hilux but its becoming a pain in the backside real bad, ive been thinking of the lexus engine but I dont know if it will hook up or not. Are they the same bolt pattens?

[bogged]

I have a 308 in my hilux but its becoming a pain in the backside real bad

In what way, what are the issues with it?

[Struth]

308 is a good fit for a Hi Lux. Cheaper to get your current motor fixed and or built up a bit than swapping in a 1UZFE.
The 1UZFE is a fine motor but my observations of it in HiLux vehicles Vs GMH 5.0 are,

1. Lexus is much wider and it is difficult if not impossible to get an engine driven fan in.

2. GMH motor is much easier to service, even the distributor on a carby model.

3. GMH is easier to cool.

4. 308 is a carburetted motor, no wiring adaptor looms are requiered.

5. When built for gas and run through a gas throttle body these motors are very economical in the HiLux.

Again I am not bagging the Lexus, but if you already have a 308 and the motor is a bit dodgy it will be a lot easier and cheaper to get necessary repairs and mods done to your existing motor.

EDIT: to answer your question they are NOT the same bolt patterns.

Cheers

[joeblow]

308 is a good fit for a Hi Lux. Cheaper to get your current motor fixed and or built up a bit than swapping in a 1UZFE.
The 1UZFE is a fine motor but my observations of it in HiLux vehicles Vs GMH 5.0 are,

1. Lexus is much wider and it is difficult if not impossible to get an engine driven fan in.

you can get the engine driven fan models pretty easy. if i can get one into a rocky engine bay the hilux bay won't be too difficult.

2. GMH motor is much easier to service, even the distributor on a carby model.

besides changing filters every so often, and plugs every 100k there is nothing that needs touching on one of these tojo engines.

3. GMH is easier to cool.

very debatable. we run a v6 vitara radiator, which is not huge.

4. 308 is a carburetted motor, no wiring adaptor looms are requiered.

those of us who hate carbies know that they make for good paperweights.

5. When built for gas and run through a gas throttle body these motors are very economical in the HiLux.

same should apply to a tojo 8......but would you run one of these lovely engines on bbq gas?

to adapt it you will need a soarer manual bellhousing. the wiring is not that easy, but once in should last a lifetime. all comes down to how much money you are willing to spend, and how little time you want to spend servicing and repairing an engine.

[Struth]

I can tell you now Joe that rocky bay looks a lot bigger than a Hi Lux bay. Just try standing a second battery where the rocky has one on top of the guard in a Lux, or fitting an airbox that large in the same place, have a look at a Lexus in a Lux next time you get the chance then tell me it fits as well as it does in a Rocky

And I wouldn't want to know how much it would cost to get a Lexus built for anything let alone properly for gas.

As for cooling, we are talking in a Hi Lux here, not a Rocky.

Each to their own as usual, my recommendation is still to stick with fixing the 308 as the most economical means.

Even bolting in an EFI 5.0 will be easier than the Lexus since it already has a 308 mounted and adapted.



Cheers

[v840]

Maybe shoot Nemesis a PM. He has a supercharged 1UZFE on gas in his 4runner.

[hiluxmad]

as said what are the issues you are having?

quick and easy(and cheeeeeep ) would be to put a injected 5.0l commodore motor in. i am doing this in my hilux currently as i already had the motor......
put a 1uz in one of my old hiluxes and it was sweet but you would have the added expence of adaptors and bits.
the 1uz on petrol will use less than the gmh v8 but running on gas would be nominal difference i imagine.
1uz is new tech and a sweet motor
gmh is old tech and heavy but still mostly reliable and plenty of go fast bits avail.

choice is yours and ultimatly comes down to how much time and money you want to throw at it.

my 2c

[-Nemesis-]

It ultimately depends on what is wrong with your 308, and how deep is your wallet.

Power, torque and all that arguement aside, the 1UZ is a hundred times the motor a 308 is. But, they cost a fair bit to fit and are a tight squeeze as mentioned.

So, what is wrong with your 308? There's not even the slightest chance anything will be reusable in a 1UZ conversion, so no it won't bolt in.

[-Nemesis-]

Got spam?

[PASSNBY]

you guys raise some really good points here you know that, im really after alot of horse power.

I lost oil pressure in my motor and it really pissed me off its taken me the whole day to fix it, i was just over it and wanted to go for a 1uz because I have heard they are reliable engines and I belive it as toyota is pretty reliable. After having a argument with booflux he made me think as I was Holden all the way and he is Toyota all the way and maybe he had some good points about his motor, and he did, thats why I wanted to go for one of them.
As one of you guys stated though I already have the 308 in there and might as well just keep it, plus there cheaper when it comes to getting horse power.

Thanks anyway guys.

[-Nemesis-]

plus there cheaper when it comes to getting horse power.

Depends on your horsepower?

Bolt some boost and a tune on a stock 1UZ and you'll get 400hp all day, reliable.

Bolt the same boost on a stock chev and you'll want kevlar gaurds, so your rods don't kill people in the next lane

[PASSNBY]

plus there cheaper when it comes to getting horse power.

Depends on your horsepower?

Bolt some boost and a tune on a stock 1UZ and you'll get 400hp all day, reliable.

Bolt the same boost on a stock chev and you'll want kevlar gaurds, so your rods don't kill people in the next lane

Yeah I understand what you mean there as I have heard they respond better to turbos, but im after like real horse power like a 355 or 383 stroker, cam, roller rockers and so on, dont get me wrong you can get heaps of horse power from them but not the type im looking for.

[Struth]

you guys raise some really good points here you know that, im really after alot of horse power.

Thanks anyway guys.

Get a VT 5.0 stroked out to 6 Lt then

[Struth]

Got spam?

[-Nemesis-]

Yeah I understand what you mean there as I have heard they respond better to turbos, but im after like real horse power like a 355 or 383 stroker, cam, roller rockers and so on, dont get me wrong you can get heaps of horse power from them but not the type im looking for.

I assume you mean low down torque when you mean horsepower, fair enough. Just make sure you have a fuel card to feed the stroker hehe (not turning you off, I love the 383's etc)

[hilux79]

you guys raise some really good points here you know that, im really after alot of horse power.

Thanks anyway guys.

Get a VT 5.0 stroked out to 6 Lt then

If the pockets are deep enough why not go http://www.comeracing.com/products/engi ... streetefi/ That's over 6.5 liters and all alloy.

But seriously if you are after a bit more power and reliability and are still running a carby on early pattern heads why not put a set of VN heads on it and the fuel injection off it as well. You would have to get new headers to suit but other than that if you got a vn wreck you would have everything you need.

Not going to have the same fuel economy as the 1uz but would be easier.

[Struth]

Start with a decent VT 5.0 they are already clearenced for the stroker crank, have the good heads, sequential injection and roller lifters.

The best place to begin a 355 IMO.

You will gain heaps of torque from the longer stroke and huge power is no problem either if you build it right.

Cheers

[zuffen]

As a UZ freak I would advise stick with the 308 or replace it with an LS3 or 6 engine.

New crate engines are cheap and will give you everything the UZ could give (and more) and still bolt in and not need re-engineering.

For low down grunt you can't go past cubic capacity.

My 1UZ was putting out over 600hp and 550lbft of torque before I rebuilt it chasing more power.

If $40,000 for that sort of power is in your range go for it.

If I did it again I'd use a 6litre LS engine and I'd have enough left over to keep me in beer for years

Still love the UZ but it's "horses for courses".

[Chucky]

As a UZ freak I would advise stick with the 308 or replace it with an LS3 or 6 engine.

New crate engines are cheap and will give you everything the UZ could give (and more) and still bolt in and not need re-engineering.

For low down grunt you can't go past cubic capacity.

My 1UZ was putting out over 600hp and 550lbft of torque before I rebuilt it chasing more power.

If $40,000 for that sort of power is in your range go for it.

If I did it again I'd use a 6litre LS engine and I'd have enough left over to keep me in beer for years

Still love the UZ but it's "horses for courses".

More info please......
this sounds interesting. But only cause I'm a nosey bastards

[-Nemesis-]

Still love the UZ but it's "horses for courses".

It defintely is. At the other end of the scale, remember Justin has 450rwkw from an unopened 1UZ Though that is one highly strung motor.

[ISUZUROVER]

Still love the UZ but it's "horses for courses".

It defintely is. At the other end of the scale, remember Justin has 450rwkw from an unopened 1UZ Though that is one highly strung motor.

How??? Specs??? Does he have an MC8-R engine??? However I thought they were only 450kw at the flywheel...

[-Nemesis-]

Basically just a boosted 1UZ, stock as a rock internals, even head gaskets. But it has a perfect tune.

The craziest part is the fact it's in a Celica! Lextreme is down so I can't get a link, username is JustenGT8

[booflux]

Still love the UZ but it's "horses for courses".

It defintely is. At the other end of the scale, remember Justin has 450rwkw from an unopened 1UZ Though that is one highly strung motor.

Agreed Nem it is a highly strung motor but the big factor for me is that it has been for quite some time now and is still running without issue. I would like to see how many other stock motors could run that type of power and take the stress, his has, for as long, as it has, without issue.

[Ice]

supercharged 1uz is part of my TT 2010 build.

see how it goes

Just a little eaton M112 to sit on top

[hilux79]

Still love the UZ but it's "horses for courses".

It defintely is. At the other end of the scale, remember Justin has 450rwkw from an unopened 1UZ Though that is one highly strung motor.

Agreed Nem it is a highly strung motor but the big factor for me is that it has been for quite some time now and is still running without issue. I would like to see how many other stock motors could run that type of power and take the stress, his has, for as long, as it has, without issue.

You would find a few LS series engines making that sort of power with valve springs being the only internal mod. HPF had a monaro at horsepower heroes a few years ago that made 600hp with one of their twin turbo kits on a stock motor.

[brooksy]

plus there cheaper when it comes to getting horse power.

Depends on your horsepower?

Bolt some boost and a tune on a stock 1UZ and you'll get 400hp all day, reliable.

Bolt the same boost on a stock chev and you'll want kevlar gaurds, so your rods don't kill people in the next lane

Sorry Bryan but I have to disagree, an LS1 was always built to handle up to 370kW from factory.
400Hp is only 300kW which is in Aussie V8's now from factory no bolt on boost. All LS1's were detuned from original factory specs to allow the longevity of the motor. This was GM's way of saving future costs on the factory in development etc & to pass future emmision controls that were in the pipeline at that time.

Now with regard to the 308-1UZ question I would stick with the 308 only because it is already done. The cost in changing to 1UZ could easily get a stroker kit from C.O.M.E racing & still have change in your pocket if HP is what you crave.



brooksy

[zuffen]

For for pure horsepower the LS has it in spades.

For a sophisticated smoothe vibration free V8 that is cheap to buy and run the 1UZ has it.

Justen blew his engine around 6 months ago due to oil surge at Wakefield. It did many thousands of kilometres before it died. Probably a lot more than any Chev whould have taken.

[chimpboy]

4. 308 is a carburetted motor, no wiring adaptor looms are requiered.

Ugh. It's not 1957 any more Struth. EFI slaughters any carby, what are you thinking?

[Struth]

4. 308 is a carburetted motor, no wiring adaptor looms are requiered.

Ugh. It's not 1957 any more Struth. EFI slaughters any carby, what are you thinking?

As mentuioned later in my post,

But I will explain my thoughts in more detail.

Inserting a carburetted 308 into any vehicle is very economical when it comes time to wire it up, really, how many wires do you think need to be connected to a 308.

There is no stuffing around with finding all the correct sensors to match the motor to the car, it doesn't care what the car is doing, it does not need a brain, it simply breathes and fires spark plugs.

But before putting it in have it built to run solely on LPG and then fit LPG throttle body/s to a suitable manifold, there are no issues when 4WDing this way compared to a carburettor.

Power is no problem if the compression is upped and cam is chosen correctly, throw some VN or later heads on it to flow more horsepower, in fact some people make big power from engines built this way.

A 308 built for gas will run reliably and smoothly all day long for a long time.

If you get keen throw a turbo at it and then see what you get power wise.

Heres one I installed which hasn't had it's gas system or throttle body connected yet, it's simply a good fit in a Hi Lux engine bay don't you think?

Thats the top of a 4 barrel carby you can see, so it sits nice and low,


And there is plenty of room all round,


Once run in and put on full time gas the owner is now very happy with it.

I dropped a VT EFI 5.0 in mine two years ago, sure it runs smooth and behaves well (most of the time) but it takes up so much more room, you can't access the dizzy with any ease. And the wiring was a complete PIA.

So that is why I recommend a carby 308, if it's done as I just explained, you can get the motor built properly prior to installing and still have change from what a V8 EFI conversion will cost you.

Cheers

[HG]

Ahh looks like everyone is getting carried away with the awesomeness of the 1UZ motor.
I have owned a few 1UZ'd Soarers over the years and spent huge amounts of dollars on them, changed cam's, done head mods, induction changes etc and they really are an awesome motor in stock form.
But they are not indestructible, I threw a rod in one of my builds, did head gaskets too, spun mains and chopped out valves in another built motor.
I was never impressed with the low down grunt in these motors at all and when mods are done the power band goes up the rev scale how ever a 50-100 shot of nitrous fixed it (thats where the head gaskets get abused) , once sorted they were good for 350 + HP but like any N/A motor they were an angry beast to drive everyday on the road.
Now as for HP in a Holden motor it all depends on how you build it and what you want.
I run a 355 (Scat crank, alloy rods, flat tops, girdle etc) ported B-cast early heads in my surf, it runs straight LPG, twin 10mm lines, twin 425 mixers on a custom manifold and has a turbo & intercooler bolted onto it as well.
It's not a cheap build but it is ultra reliable, used as a work horse during the week and an offroader on the weekend.
I run an in-cab adjustable boost that I can go between 7lb up to 15lb.
Driving on road towing a trailer during the week I get 15-16ltrs per 100 (LPG), out on the highway depending on how I drive I can get down into the 12lts per 100.

Low down go is insane just mash the throttle and you are gone, I run an auto locked 4.88 cruiser rear, 10mm unbrako hex bolts on the alxes & 35"claws on the road, run 15lb and the tires can't hang on
Earlier on in the build I ran it on a dyno and got 330rwkw on 9lbs that was with out the intercooler and a different manifold, I will get it back on the dyno once I'm happy with the current setup