I don't understand the purpose of this. Why would you want a spacer on the throttle body and why it would even make a difference.
Sounds like snake oil to me really. Maybe back in the days with carburetors it helps with increasing swirl in the air flow to mix the fuel better but with port and direct injection engines, it won't do a thing.

 

This is somthing that has been discussed at length on another car fourm I frequent.
The general consensus is with other mods it might actually do something but standing alone it's only useful as a port to install a nitrous system. YMMV.

 

You may see a very small increase in torque. Very small.

 

I'm thinking, that if a 2" spacer helps Torque and/or MPG, don't you think Honda would have put one in their design?

 

Civic and Accord owners do a lot of engine tinkering, those vehicles are built by Honda with modest race track design templates so I understand these type of mods in them, but the Passport...not so much.

 

The Oddessey owner has an Takata intake on the way, he loves to tinker and we'll see if the math at the pump bears out the apparent mpg increase.

 

Intakes almost never help saving gas and increase power without reducing filtration. You are trading longevity for power.
Even worse, some poorly designed intakes can affect the MAF sensor from reading correctly causing the engine to run poorly.

 

Probably works better if you install this as well.

 

I thought you were going to suggest this...

 

Wouldn't The MAF measure the same rate of airflow whether the intake has a 1" spacer in it or not? And even if the rate of airflow was radically different wouldn't whatever adjustment the MAF makes compensate for that and whatever performance boost results be rather miniscule?

I'm all for tinkering but at some point you gotta' figure that the original design engineers woulda' thought of this if it made that much difference.

 

Exactly, if someone wants to do "bolt ons" there only going to make a difference if you tune the ECM to take advantage of whatever air/fuel improvement that mod is able to provide, (sometimes more top end at the expense of low end power or vice versa), with a stock tune the ECM is going to adjust for whatever bolt on modification you install and attempt to keep everything operating within the preset parameters. Possibly even reducing torque, H.P. if its detecting somthing that shouldn't be.
Believe me I love tinkering around with vehicles and I'm not trying to talk down to anyone else who likes to do the same but the Passport and most modern vehicles are so far away from the 50's, 60's, and 70's vehicles that you could port match and polish intakes and exhausts, go with bigger carburetors, camshafts, and exhausts and have a real screamer. If that's what you want, (like me) probably best to get a older muscle car, or tuner car and enjoy your Passport for what it is. JMHO.

 

There were practice to put temp resistant gasket between aluminum air intake and the engine. To make the intake colder. I’m from turbo background )) In case of passport it does nothing.

 

Confirmed 33 mpg. In an Odessey.
He's also added an intake, pictured, and vcm muzzler. So clearly these gadgets will pay for themselves before Xmas!

Has anyone here tried anything similar with their Passport?

 

Confirmed 33 mpg. In an Odessey.
He's also added an intake, pictured, and vcm muzzler. So clearly these gadgets will pay for themselves before Xmas!

Has anyone here tried anything similar with their Passport?

I'm not sure if I'm seeing that intake properly, but it appears there's a gaping hole on the side that would dismiss any cold air coming in from the exterior inlet. If that indeed is a hole, it's sucking in hot engine air.

 

Weird, huh! Why would they make it like that on purpose?

 

Maybe a plugable check hole to see if the filter is dirty?