unusual engine swap

[CoryM]

Thanks Scott.

I can't think of a non-turbo Toyota engine that is small/light enough, has torque, and can get LSD cheaply. I don't really care about brand loyalty, and the ecotec is a fairly solid engine. Like I said, GM powertrain and I get along fairly well.

P/S wise: Without the speed signal from the engine ecu, assist is full power all the time right?. Is there a way to allow it to reduce power assist at speed w/o the toyota ecu?

Thanks.
Cory

[CTScott]

Originally Posted by CoryM

Thanks Scott.

I can't think of a non-turbo Toyota engine that is small/light enough, has torque, and can get LSD cheaply. I don't really care about brand loyalty, and the ecotec is a fairly solid engine. Like I said, GM powertrain and I get along fairly well.

P/S wise: Without the speed signal from the engine ecu, assist is full power all the time right?. Is there a way to allow it to reduce power assist at speed w/o the toyota ecu?

Thanks.
Cory

The PS ECU takes a standard pulse proportional to speed input signal, so you would likely be able to feed it the SPD signal off your new tranny to have it work normally.

[CoryM]

Originally Posted by CTScott

The PS ECU takes a standard pulse proportional to speed input signal, so you would likely be able to feed it the SPD signal off your new tranny to have it work normally.

Nice. That makes it easy.
Thanks as always.

[3cyltrbo]

Originally Posted by CoryM

Thanks Scott.

I can't think of a non-turbo Toyota engine that is small/light enough, has torque, and can get LSD cheaply. I don't really care about brand loyalty, and the ecotec is a fairly solid engine. Like I said, GM powertrain and I get along fairly well.

P/S wise: Without the speed signal from the engine ecu, assist is full power all the time right?. Is there a way to allow it to reduce power assist at speed w/o the toyota ecu?

Thanks.
Cory

K20 from Honda!!!!.

The K series absolutely crushes any Toyota 4cyl or the Ecotec for that matter.

Also, the K20A is quite small (externally) and has its ancillaries in similar locations to the 1NZFE (intake on drivers side / exhaust manifold on the back etc...)

Honestly I don't know why someone hasn't thought of it before (the K20A). Even the "regular" version from the base RSX and the EP3 Civic is a great motor and can be had pretty cheap.

Or what about a K24 from Accords and the CRV, they are a dime a dozen and if you want torque!......................................:thum bsup:

As for swapping in a Toyota 1.8litre......................why bother? If you're already talking about modifications to frame rails / wiring harness etc... why not just put something decent in?

I've got two cars with the Toyota 1.8 in different tunes (Mr2 Spyder and Pontiac Vibe), granted they aren't the version with VVTli, but I've also driven that engine in a Celica GTs. I'm here to tell you that the K20 crushes all the Toyota 1.8 variants ....... in all aspects, hands down (that's why people are starting to swap K20's into everything from RX7's to S2000's to MR2 Spyders) Hell, there are even guys on the MR2Spyder message boards that are taking out their stupid 1.8's and swapping in the 1NZFE with boost.

Cliffs Notes = go drive a 2006/7 Civic Si and then imagine that engine in a car 600lbs lighter

Will

[WeeYari]

Originally Posted by 3cyltrbo

Honestly I don't know why someone hasn't thought of it before (the K20A). Even the "regular" version from the base RSX and the EP3 Civic is a great motor and can be had pretty cheap.

There have been a few done. Here is one of them http://www.yarisworld.com/forums/showthread.php?t=49933

[3cyltrbo]

Originally Posted by WeeYari

There have been a few done. Here is one of them http://www.yarisworld.com/forums/showthread.php?t=49933

ZOMG WTF BBQ

[CoryM]

Originally Posted by 3cyltrbo

K20 from Honda!!!!.

The K series absolutely crushes any Toyota 4cyl or the Ecotec for that matter.

I definitely considered the K20 from 06+ Civic Si as they come with LSD, and there are enough of them around to actually find a donor. I opted for the ecotec over it for a few reasons:

-Cost of donor. Can get an ecotec for much less
-For me, engine management for the ecotec is free.
-Biggest reason- the K20 compares closer to the S/C ecotec in terms of reliability (8K redline is asking a lot) and cost to operate (premium fuel). The ecotech has the same power, and 60ft/lbs more torque. That's huge. Plus much easier/cheaper to get more power when desired.

While the K20 would be a great choice for some (probably better as a track-day engine), I want low revving torque for my daily-driver/winter-autoX car. Torque is what you can actually use on the street, where as high-revving K20s take a while to get going (and by then it's too late or unsafe to do what you wanted anyhow).

I'm still leaning towards the 2.4L NA though as 87octane is nice, and 170whp/170ftlbs would be decent in the Yaris. But 94 octane with the 2.0L S/C would get me 240whp really easy/safely..... so tempting.

Thanks for the input.
Cory