D4 1JZ-FSE engines

[2win2rbo]

How good are these engines?

Can anyone give his/her insight regarding this engine type?

[MAC_HATER]

supposedly exact same power as a 1JZ-GE but up to 25%ish better on fuel economy

i dare say it will have a trick fancy head design to deal with the direct injection and will have a few extra computer's\more complicated loom than a regular GE if you're doing a transplant

wikipedia has this to say

'In around 2000, Toyota introduced what are probably the least recognised members of the JZ engine family – the FSE direct injection variants. These FSE 1JZ and 2JZ engines are aimed at achieving minimal emissions and fuel consumption together with no loss of performance.

The 2.5-litre 1JZ-FSE employs the same block as the conventional 1JZ-GE; everything up top, however, is unique. The ‘D4’ FSE employs a relatively narrow angle cylinder head with swirl control valves that serve to improve combustion efficiency. This is necessary to run at extremely lean air-fuel ratios around 20 to 40:1 at certain engine load and revs. Not surprisingly, fuel consumption is reduced by around 20 percent (when tested in the Japanese 10/15 urban mode).

Interestingly, normal unleaded fuel is enough to cope with the FSE’s 11:1 compression ratio.

The direct injection version of the 1JZ generates 147 kW (197HP) and 250Nm (184 ft lbs) – virtually the same as the conventional VVT-i 1JZ-GE. This highly efficient engine is fitted to the 2000 Mark II, 2001 Brevis, Progres, Verossa, Crown and Crown Estate. All are fitted with an automatic transmission.

The 3-litre 2JZ-FSE uses the same direct injection principle as the smaller 1JZ version but runs an even higher 11.3:1 compression ratio. This engine matches the conventional VVT-i 2JZ-GE with 162 kW (217HP) and 294Nm (216 ft lbs). The 2JZ-FSE is fitted to certain 1999 Crown models and the 2001 Brevis and Progres. Again, all use automatic transmissions."


have you got one? or planing to get one?

[2win2rbo]

have you got one? or planing to get one?

I'm planning to get a JZX110 or a CG10 with the 1JZ-FSE in it. I am not sure about the reliability and maintenance of the system. I was told older D4 4-cyl engines have problem with carbon buildup and that the latter ones, including the 1JZ-FSE don't. I am not really sure about this.

Have you heard of any horrors with the 1JZ-FSE engines?