Originally Posted by Hoovey2411

I can live with that. Platform migration will really spruce up the Lexus line. But in regards to Atkinson and Otto cycles, it's an impressive feat. I'd like to see the dual cycle technology on more vehicles. Migrate this engine to GA-L platform on the 4IS, and at some point the 2.0T will be making north of 270hp from its current 241hp state. Should be spunky. In fact the 5GS might utilize it first on a GS300. It'll be the volume model, while that GS400/450/500 sporting the TTV6 in F-Sport form will be the lustworty supermodel. People are going to complain but the 5GS will firmly push some F-Sport and Luxury trims past $60k. A typical 2017 GS350 F-Sport RWD is being built at a $59K level. MY2019 is shaping to be an exciting model!

Originally Posted by peteharvey

5GS should have at least 5 engine options judging by the next generation Toyota Crown in the Japanese Domestic Market.
1) 2.0 Turbo.
2) 3.5 V6 TT.
3) V8 TT?
4) 300h 2.5 Hybrid.
5) 500h 3.5 Hybrid.

Originally Posted by situman

Here's what I think would make sense

1) 270hp 2.0 Turbo.
2) 400hp 3.5 V6 TT.
3) 525hp GSF V8 TT- top of the line engine for LS and LC (leave the supposed 600hp+ V8 for the LSF and LCF, if there ever will be one)
4) 354hp 3.5 Hybrid.

Originally Posted by situman

Here's what I think would make sense

1) 270hp 2.0 Turbo.
2) 400hp 3.5 V6 TT.
3) 525hp GSF V8 TT- top of the line engine for LS and LC (leave the supposed 600hp+ V8 for the LSF and LCF, if there ever will be one)
4) 354hp 3.5 Hybrid.

Originally Posted by bitkahuna

and what year do you expect a 5GS with all those engine options to be available? i just don't see it happening before 2022.

Originally Posted by situman

Here's what I think would make sense

1) 270hp 2.0 Turbo.
2) 400hp 3.5 V6 TT.

Originally Posted by bitkahuna

and what year do you expect a 5GS with all those engine options to be available? i just don't see it happening before 2022.

Originally Posted by situman

Putting it in sport mode eliminates the dual cycle, as far as the feel of lag goes. Maybe it also bypasses the atkinson cycle.

Originally Posted by Sulu

The fact that the Lexus 2-litre turbocharged engine runs on the more efficient (but less powerful) Atkinson cycle at low engine loads, only switching to the more powerful Otto cycle at high engine loads probably contributes to the lag in throttle response.

Originally Posted by situman

Putting it in sport mode eliminates the dual cycle, as far as the feel of lag goes. Maybe it also bypasses the atkinson cycle.

Originally Posted by EXE46

Lag is still present in sport mode.....also, engine is not fuel efficient as one would have thought unless you baby it. Highest MPG I have ever gotten in 11 months of ownership is 21....I drive it normal/sporty so I get 18 to 19 MPG on average; therefore, it's no more efficient than an IS350 which is superior in every way.

Originally Posted by peteharvey

Sulu & situman - thanks for the information.
I will test drive my missus IS200t again, and see if the Atkinson cycle off in Sport Mode makes any difference.
_