SI-drive?

[07legacyGTturbo]

I just bought an 07 legacy GT 2.5 turbo with the SI-DRIVE. It runs awesome, I'm just wondering how it works and what does it control? Just the transmission? I'm just wondering...

Thanks

[Squiden]

SI-Drive just controls the throttle mapping on the car. In "I" mode, if you floor the gas, you'll only get 70% throttle at the engine. In "S" mode, it drives like a normal car. and in "S#", you'll get WOT without needing to floor the gas peddle.

 

Since it's just a throttle mapping, many will call it a gimmick - with a little right-foot modulation, you can get the same effect.

[07legacyGTturbo]

Ok thanks!

[SasquachGT]

If you are an aggressive driver, like me, you'll always want it on S#. Not just for more acceleration but for throttle response.

[RJS5689]

SI-Drive just controls the throttle mapping on the car. In "I" mode, if you floor the gas, you'll only get 70% throttle at the engine. In "S" mode, it drives like a normal car. and in "S#", you'll get WOT without needing to floor the gas peddle.

 

Since it's just a throttle mapping, many will call it a gimmick - with a little right-foot modulation, you can get the same effect.

Right idea, but the numbers are slightly off.

 

In "I" mode you have a maximum of about 40% of engine power I believe it is. Throttle inputs are delayed and it cuts off at something like 40 or 50% throttle. So at WOT the throttle is only open 40-50%.

 

In "S" mode the car drives like normal. For every 1 degree you open the throttle you get 1% of power. With the pedal pushed half way, you have 50% of the throttle being opened.

 

In "S#" mode the response is doubled. For every degree you press the pedal, you get 2% of the throttle opened. This effectively means you are at full throttle even if you only have the gas pedal pressed half way.

 

I used to use "S#" when the car was stock and stage 1, but now that I'm at stage 2 "S#" has just become way too aggressive and jerky.

[LegacyMUN2k6]

I use "I" mode 99.9% of the time to conserve fuel.

[Darkness of Death]

one time i went to the dealership and the service advisor was talking to me about the "knob". he thought it was to control the suspension settings

[dmanaenk]

Sigh, laziness meets post-whoring.

 

OP, this has been discussed like a gazillion times, use a search.

[boymk123]

If you are an aggressive driver, like me, you'll always want it on S#. Not just for more acceleration but for throttle response.

 

also remember the "blue dot" won't let you do S#

[SSlick406]

"I" mode is meh! How much fuel is actually conserved? Not worth the lack of driving experience IMO.

[SlickSpur]

I use "I" mode 99.9% of the time to conserve fuel.

 

Ditto

[boymk123]

I use "I" mode 99.9% of the time to conserve fuel.

 

in Boston traffic, yes,

same here, 99.9999% "I" mode

[musty_hustla]

I wish the 2k10s had SI-drive, seems like a fun feature.

[SlickSpur]

Is there any reason you shouldn't switch SI modes while under throttle? I, out of habit, put my car into neutral before I switch modes, but don't really know if thats necessary...