FBM Intake Manifold Release

[FullBlown]

Originally Posted by Tansey86

Doesn't an intake manifold need to have different size/volume runners to be optimal for forced induction/NA applications respectively? Or is this going to be a universal fix for both?

That is the goal, we are trying to find the balance between the two.

[cdrazic93]

Originally Posted by FullBlown

That is the goal, we are trying to find the balance between the two.

If these sell like hot cakes, no one would blame you for splitting them apart and making aspiration specific manifolds

[mid_life_crisis]

Originally Posted by TaroYamada

I guess any serious engineer would have done back 2 back comparison on flow bench from old and new

Originally Posted by FullBlown

Agree, but what works on paper and theory, doesn't always work in real life. Its too early to assume all that.

There is a process we go through before we make a cast production product. This is just the fist step.

I know it was a typo (or was it?) but that's exactly what he needs.
It's a pity that sometimes you have to feed the trolls because as a vendor you just can't let their insinuations go unchallenged.

[Dipstik-sportech]

Yeah I saw his comments and thought they sounded a little condescending

The Frozen North

[FullBlown]

Originally Posted by mid_life_crisis

I know it was a typo (or was it?) but that's exactly what he needs.
It's a pity that sometimes you have to feed the trolls because as a vendor you just can't let their insinuations go unchallenged.

We get this all the time, I think we are used to it by now.

[mid_life_crisis]

Originally Posted by Dipstik-sportech

Yeah I saw his comments and thought they sounded a little condescending

The Frozen North

Ding ding ding! It's only the third day and we already have a contender for understatement of the month.

[DBW]

If building a full custom manifold why not move the port injectors further up the runner?

[FullBlown]

Originally Posted by TopSpeed

If building a full custom manifold why not move the port injectors further up the runner?

The problem is the further we move it down, the closer the connector gets to the runner, and there isn't much room down there at all.

We would need to move it at least 12mm down to square up a standard tip injectors.

[Dipstik-sportech]

Originally Posted by mid_life_crisis

Ding ding ding! It's only the third day and we already have a contender for understatement of the month.

I was trying to be nice, I am Canadian it's kinda our thing.

The Frozen North

[DBW]

Originally Posted by FullBlown

The problem is the further we move it down, the closer the connector gets to the runner, and there isn't much room down there at all.

We would need to move it at least 12mm down to square up a standard tip injectors.

You are confused with what I am saying so I made a picture for you. I was saying should move the port injector further up the runner, so you can take full advantage of having a twin injection setup.

[kbye]

Originally Posted by TopSpeed

You not following what I am saying so I made a picture for you. I was saying should move the port injector further up the runner, so you can take full advantage of having a twin injection setup.

Maybe I am a bit uneducated on the subject but wouldn't it be more beneficial to have the injectors closer to the port? Having it so far up would mess with timing, no? What is the advantage of having it so high up there?

[DBW]

Originally Posted by kbye

Maybe I am a bit uneducated on the subject but wouldn't it be more beneficial to have the injectors closer to the port? Having it so far up would mess with timing, no? What is the advantage of having it so high up there?

By moving the port injectors up you get the following benefits.

-Lower Intersect angle since the injectors is now on the radius of the runner.
-Increased charge cooling
-Better atomization of the fuel when using large injectors.


Cons of moving them would be poor idle quality and low load throttle response. However since the FA20 uses a dual injection setup the cons would not matter because you could tune those areas using the Direct injection only.

Doug

[Luckrider]

Originally Posted by TopSpeed

By moving the port injectors up you get the following benefits.

-Lower Intersect angle since the injectors is now on the radius of the runner.
-Increased charge cooling
-Better atomization of the fuel when using large injectors.


Cons of moving them would be poor idle quality and low load throttle response. However since the FA20 uses a dual injection setup the cons would not matter because you could tune those areas using the Direct injection only.

Doug

Low throttle response can be tune, but the DI is turned off below a certain RPM (something like 1800) and above a set RPM (usually set around 7000 rpm).

[Calum]

Originally Posted by Luckrider

Low throttle response can be tune, but the DI is turned off below a certain RPM (something like 1800) and above a set RPM (usually set around 7000 rpm).

That can be manipulated.