Jay
Admin
The hi/lo button switches the turbo boost pressure from lo (.40 bar) to high (.65 bar). Contrary to popular opinion it's not a fuel economy influenced feature, it's actually to provide traction in wet, slippery and colder conditions.
The car will be fine running in high mode on a daily basis - there are no reliability issues by doing this.
The solenoid that controls it can in fact be bypassed to gain extra boost pressure. Very noticable modification on a Glanza due to the 1st and 2nd gear restrictions, but not so evident on a GT.
As a side note the hi-lo feature was not installed on the P-Sport model Glanza which ran constantly in high boost.
Constant use of Hi mode is perfectly fine on a stock engine. It is within manufacturers specifications. It's only once you exceed these specifications that reliability can be compromised.
Fuel consumption is increased in Low mode as the engine is usually worked much harder due to a lack of boost. Depends on the driver but more often than not the low mode is less economical.
EP91 Setup:
EP82 Setup:
Once the solenoid has been bypassed there will be a slight increase in boost across all the gears. If you experience fuelcut it is important to reinstate the solenoid into the system - fuelcut is a dangerous thing to hit even frequently and may lead to pistion/ringlands damage.
This modification is made at your own risk.
The car will be fine running in high mode on a daily basis - there are no reliability issues by doing this.
The solenoid that controls it can in fact be bypassed to gain extra boost pressure. Very noticable modification on a Glanza due to the 1st and 2nd gear restrictions, but not so evident on a GT.
As a side note the hi-lo feature was not installed on the P-Sport model Glanza which ran constantly in high boost.
Constant use of Hi mode is perfectly fine on a stock engine. It is within manufacturers specifications. It's only once you exceed these specifications that reliability can be compromised.
Fuel consumption is increased in Low mode as the engine is usually worked much harder due to a lack of boost. Depends on the driver but more often than not the low mode is less economical.
EP91 Setup:
EP82 Setup:
Once the solenoid has been bypassed there will be a slight increase in boost across all the gears. If you experience fuelcut it is important to reinstate the solenoid into the system - fuelcut is a dangerous thing to hit even frequently and may lead to pistion/ringlands damage.
This modification is made at your own risk.