70 series LC with 1JZ-GTE swap

[cicak]

Hi Lulo,
do you think the PTO is better than electric?
What do you do to keep the shear pin from breaking,bigger pin??
l have broken many pins pulling my HJ61 out of snow.
Simon

Simon drilling it out and putting a bigger bolt in and HT is usually done here or the other one is to weld it up - mine is welded as the think they only have 750kg on the shear pin stock.

 

[cicak]

Cicak,

I see ur point. I may have not used it enough to e in situations where I really need to push it. Although I already had to pull another LCII under heavy rain in a freshly bulldozed muddy track and still I didn't have to push the engine above 4000rpm while recovering this car.

My background is Enduro, where I used a KTM 200EXC (2 strokes). Even this engine can rev quite high (6 to 7000rpm) it delivers enough torque and power at medium rev and that's mostly the way I used it.

As I said the 1JZ reminds me more a 250cc with most of the time enough torque and power under 4000rpm. Of course it's pleasant to rev it above, but one as to be able to handle the power when it comes... and a LCII is not a 100Kg KTM!

I try to apply my style of riding to the 1JZ. I don't know the exact power curve of this engine but from what I could experience there is already a lot of power up to 4000rpm. I consider the 4000 to 7000rpm range as a reserve when needed. Time will tell if I'm right or wrong. Hopefully I can participate to the 2010 RFC in Touring and some other comps in Sarawak or Sabah before that.

Since these engines are out of ToyotA SUPRA's they go. a 7m 240BHP a 1JZ Stock 280BHP a 2JZ 300 or 320BHP a 7M with cams and ECU - 290+HP and the rev to 8000 REVs yes I have seen and been in one when they wind them out. A 1JZ / 2JZ can take 800BHP stock - DAMAGE from a stock engine equivalent to a MOTOCROSS BIKE riding on a WEDDING CAKE. Most guys here drive them flat out they love to hear them HOWL especially when running SIMEX XT tires. Combined with VOLVO axles they are a MENACE and can change a track in seconds from driveable to the next vehicle winching - Been there and been a victim of this in front of my own eyes when I have idled along the track in my STOCK TROOPY and the idiots maintain that its not driveable unless they rev the crap out of the *JZ engines and wreck them.

I hope it serves you well i have said my piece. Personally if I was in a poisition of power I would ban every 1/2JZ engine from any 4x4.

 

[orouit]

I won't destroy the trails

Hi Cicak,

Well banning powerful engine from 4WD is a bit extreme but I understand the concern. I have seen riders pushing their bike to high rev, literally destroying trails while it's possible to just ride on the torque to pass over obstacles, so I understand what you mean.

When I bought this car the rear axle had been destroyed by the previous owner and I couldn't really try it. My concern was, would it be possible to exploit it without pushing the engine to its max power rev. A good motocross bike doesn't always make a good enduro bike unless you are a top pilot.
However I had the advise of an experienced driver using a 2JZ and I have never seen him really pushing his engine high rev.

After some trials off-road I know its possible to use it without making the engine howl like crazy. As I said there is more than enough power and torque (more than most cars) below 4000rpm (where it start to be scary!) but in case you need it the reserve is definitely there. I may not be very experience but have seen that when u're stuck there is no real need to really insist... better use the winch before you destroy everything

I'll try to use it wisely and not forget to lock my front hub like I do sometimes, thinking, why the hell can't I climb this slippery hill !!

See you one of this days

 

[orouit]

Viva Sakta

Hi AI13!

Yes the guys on the pics are Eddie, David and Voon (didn't remember his name). Bought the car from a garage near Borneo 4x4 on the advise of Eddie who is helping me doing the enhancements minimizing the cost (thks Eddie )

If you're going out with the Sakta some times, we will have the occasion to meet and share a !

 

[orouit]

Hi Rosco,

Don't know if any one put a 1JZ in a Ferroza. There is no sand dune here in Borneo but one of my friend spent a week-end in Dubai and met a crazy buggy guy with a 500hp V8 engine... even able to do wheeling like a bike! Only powered by the back wheels.

However we have some flat beaches with some hard sand so I'll be able to rev it without destroying anything, the next tide will simply erase my marks on the sand

Even though I know the damage SIMEX + 280hp can cause to a track, here in Borneo a tropical rain can change a track from easy to almost impossible in a week time, specially when they are abandoned by loggers and not maintained anymore.
Anyway ecologists can be reassured my style of driving is not full rev when tackling difficult obstacles but more on idle, however a little drifting on a flat track can be enjoyable (just hope it's politically correct)

 

[ai13]

hi,TQ.I'm also interested to swap my 2LT engine on my LWB LC2 to 2JZ.but i wonder what gearbox n axle do u use as the much higher hp of the 2JZ can easily destroy the stock G52 tranny and axle in high rev. or perhaps u just have to take care(preserve) the tranny by not overreving the engine. need your opinion on this

 

[cicak]

hi,TQ.I'm also interested to swap my 2LT engine on my LWB LC2 to 2JZ.but i wonder what gearbox n axle do u use as the much higher hp of the 2JZ can easily destroy the stock G52 tranny and axle in high rev. or perhaps u just have to take care(preserve) the tranny by not overreving the engine. need your opinion on this

By all means put a 1JZ in or even better a 2JZ however seek advise from a experienced 4dx4 shop near you. I am may be experienced and veryu knowledgeable on certain areas and 1J/2J conversion I do know my way round.

YEs put the 1/2J intro the SWB leave the gearbox as stock. THe then engine will wear the geaarbox out and rather spectaturlalrlyt also. I love the sound of mashing metal.

Next is the driveshaft will have to be custom made /cut also make sure its smaller than stock so it twists easy and absorbs the massive torque from the 1j/2j.

Brakes need to be modified - Suggest Supra Master cylinder etc.

Next is rev limiter make sure you put a control unit in to limit the REVS to 2000 only then the jungle tracks will be safe and last longer.

Xfer case may need to be changed but they seem to take the punishment.

Also roll cage and helmet for the driver.

Axles you can leave stock they seem to take it mostly - however you need lockers front and rear so ALL WHEELS can spin and dig the jungle up at once.

 

[orouit]

1JZ swap.

From what I know of the transformation that has been done, here is some info:
-

• 
  *gear box is not the original of the LCII but a Supra 5 speed Gearbox (to be confirmed)
  *Rear axle was destroyed by the previous owner (Drifting and street race!)
  *We changed for a standard LCII axle but the bearings are from german origine (Das Panzer division)
  *Front axle strictly standard, was not used by the previous owner...
  *Brakes are standard, we plan to install disk brake on the rear axle. Not doing rally racing with it, so as the engine is slightly lighter than a Diesel, I don't really see the issue, except that braking power is not really strong!
  *There is no limiter on mine, I'm looking for a PC interface to tune the engine for off-road use, more torque/less power. Rev limiter is not a solution, specially 2000 is like idle mode.

The danger is not the power but the usage one does with it. If you don't make it howl like crazy all the time, a std axle won't break. I know someone with a 2JZ who has been using std axles for 6 years without any issue.

Be wise...

 

[ai13]

hi, that's what i knew from those people who have done 1J/2JZ swap to their LC.It's the supra gearbox that they're using. yes, i agree,the power is not the real danger, it's the usage. by the way,it's not a drag setup car ur driving that u can high revv it so frequent as the internal is stil stock

 

[lulo]

Hi Lulo,
do you think the PTO is better than electric?
What do you do to keep the shear pin from breaking,bigger pin??
l have broken many pins pulling my HJ61 out of snow.
Simon

Yes Simon, i prefer the PTO Winch...

...you can use a bigger pin.

 

[cicak]

Hi Rosco,

Don't know if any one put a 1JZ in a Ferroza. There is no sand dune here in Borneo but one of my friend spent a week-end in Dubai and met a crazy buggy guy with a 500hp V8 engine... even able to do wheeling like a bike! Only powered by the back wheels.

However we have some flat beaches with some hard sand so I'll be able to rev it without destroying anything, the next tide will simply erase my marks on the sand

Even though I know the damage SIMEX + 280hp can cause to a track, here in Borneo a tropical rain can change a track from easy to almost impossible in a week time, specially when they are abandoned by loggers and not maintained anymore.
Anyway ecologists can be reassured my style of driving is not full rev when tackling difficult obstacles but more on idle, however a little drifting on a flat track can be enjoyable (just hope it's politically correct)

This is BOLEH land I bet someone has done a 1JZ into a Ferozza.

Recently saw a 1JZ dropped into a Singapoore TAXI a old coronna round guuards model that thingg just flew it took two engines to sort itt all out it would see of anything near it - including porsches and ferraris it had cams and ECU upgrades and a few things done to the suspension including supra rear end.

it was lethal hahaha.


I Know the damage rain can do - also see first hand what one loony in a 1JZ can do and then a whole herd of them going through a track. Our favourite track is now winch DOWNHILL and is now closed to all vehicles after a HERD of 1JZ VOLVO axles clown went down to it.

 

[orouit]

What do you mean by closed to all vehicles?

Is it that it is forbidden by the authorities or is it that it has become too difficult?

I asked Eddie about the engine and gearbox and clutch.

The gearbox is from longwheel based Toyota LC wth 3Liter diesel or bigger engine (maybe 4.2L)

The clutch is a heavy duty clutch, but once again I don't use a Volvo axle, it's original MKII axle, only with reinforced German bearings.

We went out this week-end, 4 SWB vehicles or buggies. The track we took is definitely not for long wheel based vehicles. Many broken bridges and passages requiring a very steep attack angle.

It's only my 3rd outing with the Toy so I'm still making mistakes in my choice of trajectories.
However except on one particular case where I add to extract myself from a deep mud hole, outside the track because in any case there was no more track!! I haven't use more than 4000rpm which I consider to be already high rev in extreme trial conditions.

Later I will make video of some difficult passage and you will see that it is definitely possible to use a 1JZ between 1000 to 3000rpm in 90% of the cases. In first low gear you can use it from 1000 to 2000rm, but this is only for extreme conditions, most of the time, 2nd low gear provides more speed and traction that can be used to roll over the obstacles.

I think that during our outing I only used 2 ou 3 times the first gear, to tackle the logs bridge and to extract from a rut where starting in 2nd gear would not work.

Have a look to our last outing: Picasa Web Albums - olive_fr - Saturday 3 an...

I had to leave around 3:30pm. A rescue car took a Hi Lift Jack around 3:45pm but heavy rain starded around 4pm. They could make it to the main road around 10pm. Going up the hill part was not more than 2kms... but took them 4 hours!