8 hours ago, Rojie said:

 

Hello Danger,

 

Welcome to the Forum.

 

I have not heard of any Alphard owners with superchargers.

Alphards offer a limousine ride, not a hot-rod one.

 

Superchargers were fitted to (a few) Toyota race engines of a time frame earlier than your engine.

Superchargers, and I have one on one of my vehicles, run a low compression ratio (to counteract the increased combustion pressures/boost).

Sourcing those special pistons, and induction manifold(s) even for the earlier models, would be quite a challenge.

Maybe those engines use different rods too.

 

Me ? Respectfully, I would move on from your idea.

 

Were you to manage to fit a supercharger, you WILL need to revamp all your suspension and transmission too.

 

 

ps. Superchargers generally flatten and increase the torque curve, in some cases massively.

Although they do boost the horsepower, it is the increase in (low down) torque that is most noticeable.

 

Good Luck

 

Respectfully this company makes a supercharger specifically for the Alphard:

HKS SUPERCHARGER COMPLETE KIT FOR TOYOTA ALPHARD GGH20W GGH25W 2GR-FE 12001-AT010

I have also found 4 other companies that make Alphard specific superchargers.   For even the most modern Alphards. 

That is why I was asking what people have used . . . . . If there are multiple companies making Alphard specific superchargers than there must be a market for it.

And just because a car has a supercharger does not mean that it is a hotrod.  Many normal everyday cars that are peoples everyday drivers to go to the shops have superchargers. 

I have 2 questions:  

1)  I have a  3.5L V6 automatic AWD. 

I want to know if I have the ecu completely unlocked and remapped,

What is the maximum horse power anyone has been able to achieve from their Alphard ? ?

2)  What aftermarket superchargers have people added to their Alphards for maximum streetable horsepower ? ?