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Discussion Starter #1
Hi Guys,

Not sure if this has been covered somewhere before, but I am looking for any info on making the 4jh1-t go better.

At the moment I have done a chip, boost increase to 17psi, water/meth injection, blocked egr and 3inch exhaust, I have a cold air intake waiting for me to install aswell.

The main things I want to know is, is there a turbo upgrade, bigger injectors and or a strait swap mechanical pump that will work better than the chip?
But any other mods that have been successful would be great.

cheers
Jay
 

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Registered
Joined
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33 Posts
Hi Guys,

Not sure if this has been covered somewhere before, but I am looking for any info on making the 4jh1-t go better.

At the moment I have done a chip, boost increase to 17psi, water/meth injection, blocked egr and 3inch exhaust, I have a cold air intake waiting for me to install aswell.

The main things I want to know is, is there a turbo upgrade, bigger injectors and or a strait swap mechanical pump that will work better than the chip?
But any other mods that have been successful would be great.

cheers
Jay
ECU remaps be done, +30 and +50 injectors are available now, so can get up to 140hp on the VP44 pump.
Stock they are around 65hp at the wheels, chips usually get around 80hp. Chip and +50 around 120hp, up around 140hp with a good ECU remap and +50s and a bit more boost. Then there is the option to mechanical pump swap to a VE pump, and go a lot further.
 
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