MR2 Owners Club Forum banner

1 - 3 of 3 Posts
A

·
Guest
Joined
·
0 Posts
Discussion Starter #1
I'm puzzled as to how useful the T-VIS is on a turbo motor. I can understand the benefit on a NA motor, but on a turbo surely the air is being forced in, so changing the runner configuration to increase torque is unnecesary? Or am I missing something major? Compensate for turbo lag?

Thanks, Andrew
 

·
Registered
Joined
·
1,624 Posts
Andrew Bosch said:
Compensate for turbo lag?

Thanks, Andrew
bingo!

When you are sub ~3200 you have no boost really. The TVIS helps ram air (by velocity) into the cylinders to give you some low end grunt.
 

·
Premium Member
Joined
·
12,271 Posts
the purpose of the TVIS is to present a smaller intake area at lower RPM/off bost contition, to optimize velocity. Under boost/higher RPM, the seconsary runners open and provide a larger area to increase flow.

It is especially well suited to turbo applications, where the total range of airflow is much wider than it is on an N/A application.

bill
 
1 - 3 of 3 Posts
Top