No they are completely different engines to the turbocharged units. Had a 1hz in my first 80 for 13 years and looked into turbocharging that. Was put on to a guy at the time called Scott who is into tuning cruisers and his advice was definitely to leave well alone. The hz is a great engine if a little underpowered at times but I learned to drive it accordingly. I've towed some things in the past with it that would give the vosa man a heart attack! !!I kinda doubt toyota would use different pistons for the N/A vs the turbo engine. If that's the case, then bolting on a turbo should fine. Obviously you'll want to tune it well with fueling and watch those EGT's to be on the safe side of things.
I'm sure someone else will be along to confirm whether this is the case or not...
Surely all that torque can be converted to motion , bigger wheels or swapping diffs with a TD 80 assuming they are of a different ratio ?
Hio all,
Does installing turbo on 1HZ80 will cause problem on the pistons etc?
If yes, how do you prevent it?
Hi Horokuru,
I installed a turbo kit on my hzj75.
It runs much smoother now. The difference when driving uphill is remarkable.
I've driven around 20000 kms with it now and didn't have any issues so far.
Boost pressure is a modest 0,5 bar and I don't drive faster than 110 kph on the motorway although it can go much faster.
I'm very happy with it!
On the other hand, my 80 with the 24 valve HDFT engine is still in another league and drives way better than the turboed Hzj.
FWIW : if you can afford it, go for the HDFT engine and gearbox and if you decide to put a kit on the 1hz, treat it gently.
Good luck!
Wout
Your better advised to buy a factory turbo motor. The earlier HZ has stronger pistons than the newer ones. The HZ doesn't have a boost compensated IP, so when fuel is added to feel the power at the upper revs, its over fuelling at lower revs (you can add an altitude compensator, but it doesn't compensate as much as a HD)They will last a while if you don't increase the fuel too much, but the temptation of the added power is hard to resist good thing is there about 30% the price of a factory turbo engine if you need to replace it.
To answer your Q, yes you can, but get the A/F ratio set correctly to the boost psi