30-07-2014, 05:10 PM
It is a gen 1 VNT mate. The boost can is in exactly the same place as the vac can would be.
Standard the vac can leaves the vanes open with no input as a failsafe and then uses the ecu to pull them shut to make the boost whereas mine rest in the shut position and use the boost to push them open.
Its a VNT mate Variable nossel turbo.
Think of each gap between 2 vanes as a nosel that opens and closes.
Imagine having a hosepipe in your hand flowing water (instead of exhaust gas), you put your finger over the end (vanes closed) and the pressure inside the hose increases and the water comes out at a great speed, take your finger off and and the pressure in the hose drops right off and the speed of the water slows down but you get alot more water flowing through.
On the turbo the same applies, close the vanes and the pressure inside the hotside increases as does the gas speed so the turbo spins faster and makes more boost. You then open the vanes a little at a time to control the flow and slow the gas speed and pressure to stop the turbo overspeeding and also stop it being a restriction.
Standard the vac can leaves the vanes open with no input as a failsafe and then uses the ecu to pull them shut to make the boost whereas mine rest in the shut position and use the boost to push them open.
Its a VNT mate Variable nossel turbo.
Think of each gap between 2 vanes as a nosel that opens and closes.
Imagine having a hosepipe in your hand flowing water (instead of exhaust gas), you put your finger over the end (vanes closed) and the pressure inside the hose increases and the water comes out at a great speed, take your finger off and and the pressure in the hose drops right off and the speed of the water slows down but you get alot more water flowing through.
On the turbo the same applies, close the vanes and the pressure inside the hotside increases as does the gas speed so the turbo spins faster and makes more boost. You then open the vanes a little at a time to control the flow and slow the gas speed and pressure to stop the turbo overspeeding and also stop it being a restriction.
