Raised Air Intake

[PBD]

Not for me Jean. I want it to be me who puts the first “battle scars“ on mine!

 

[Jean Mercier]

hi Jean. Guess locked up and not to be used as a static demo car? "Look and don't touch" ?

Yes, they said they would lock it up. I don't mind too much anyway, as long as they don't let kids with candies inside the car. I have grand-children, only my grandchildren are allowed to do that
And for me, a car has to be used, so I am almost sure I will have scratches from branches on it after less than a year

 

[bemax]

Yes, they said they would lock it up. I don't mind too much anyway, as long as they don't let kids with candies inside the car. I have grand-children, only my grandchildren are allowed to do that
And for me, a car has to be used, so I am almost sure I will have scratches from branches on it after less than a year

But it will be your scratches!

 

[ECrider]

marks of valour

 

[crimson]

My brother in-law made a comment that the air intake is facing back and forward. Is this a thing and any smart Grenadier design decisions to back my future reply LoL

 

[AnD3rew]

My brother in-law made a comment that the air intake is facing back and forward. Is this a thing and any smart Grenadier design decisions to back my future reply LoL

Internet is full of debates on the forward vs rear facing snorkel head. With no clear answer as to which is best. Some claim rear is better because less water, bugs dirt get in, others say it reduces airflow, although no real evidence that is actually a problem. In a turbo engine, the turbo is going to suck in as much air as the engine needs no matter which way you face it. I can’t see a downside to rear facing and any claimed forced air ram effect of facing forward is debatable at best

 

[BD1]

Here is the pic from FB with production texturing on plastic:

 

[Jean Mercier]

I don't remember where and whom asked if the snorkel on the production vehicle was OK, because on prototypes the plastic was "soft"?

I checked the snorkel, and it is quite hard and decent plastic. I am not a plastic specialist, but I wonder if it is UV (Ultra Violet) proof and won't become brittle after some years of sunshine!

 

[DaveB]

I don't remember where and whom asked if the snorkel on the production vehicle was OK, because on prototypes the plastic was "soft"?

I checked the snorkel, and it is quite hard and decent plastic. I am not a plastic specialist, but I wonder if it is UV (Ultra Violet) proof and won't become brittle after some years of sunshine!

They will be polyethylene or similar

 

[Shaky]

I am reassured by that picture. I was looking at the PT-02 in the local agents and noticed that the RAI wasn’t up to much and I was hoping that wasn’t the finished article, which it clearly isn’t looking at that one.

I will be honest and say it is the one thing that I would never have specced myself and if there was a untick box for the Trialmaster version I would have unticked the RAI.

 

[rovie]

I am reassured by that picture. I was looking at the PT-02 in the local agents and noticed that the RAI wasn’t up to much and I was hoping that wasn’t the finished article, which it clearly isn’t looking at that one.

I 2ill be honest and say it is the one thing that I would never. Have specced myself and if there was a untick box for the Trialmaster version I would have unticked the RAI.

Yes, I agree with you. From my point of view, the construction looks rather cheap. I'm afraid that I'll tear off the plastic tube when driving through my forest and hedges due to branches hanging down.

 

[Boston Boy]

Internet is full of debates on the forward vs rear facing snorkel head. With no clear answer as to which is best. Some claim rear is better because less water, bugs dirt get in, others say it reduces airflow, although no real evidence that is actually a problem. In a turbo engine, the turbo is going to suck in as much air as the engine needs no matter which way you face it. I can’t see a downside to rear facing and any claimed forced air ram effect of facing forward is debatable at best

Remember Bernoulli's Principle: an increase in the speed of a fluid occurs simultaneously with a decrease in pressure. Which means the air rushing past the side-facing opening created a low pressure zone that will want to such air out of the intake. I know this based unintended experience. The air intake for a Land Rover IIA'a heating (sic) system is a hole in the side of the front fender (wing). My IIA's heater fan fuse blow on an hour trip home in 32°F weather. I nearly died from cold. The air rushing past the hole in the body sucked air out of the cabin, out out through the heater core and out onto the road. Bermloulli in action.

 

[DaveB]

Remember Bernoulli's Principle: an increase in the speed of a fluid occurs simultaneously with a decrease in pressure. Which means the air rushing past the side-facing opening created a low pressure zone that will want to such air out of the intake. I know this based unintended experience. The air intake for a Land Rover IIA'a heating (sic) system is a hole in the side of the front fender (wing). My IIA's heater fan fuse blow on an hour trip home in 32°F weather. I nearly died from cold. The air rushing past the hole in the body sucked air out of the cabin, out out through the heater core and out onto the road. Bermloulli in action.

If it was a naturally aspirated engine then your theory would play.
But in this case you have turbo's sucking air into the raised air intake.

 

[AnD3rew]

If it was a naturally aspirated engine then your theory would play.
But in this case you have turbo's sucking air into the raised air intake.

Yup

 

[Boston Boy]

If it was a naturally aspirated engine then your theory would play.
But in this case you have turbo's sucking air into the raised air intake.

The theory works. My point was that if the opening is facing sideways, then the airflow past the opening is creating low pressure at that point (and the faster you are traveling the lower the pressure). Whether it is low enough pressure to have a measurable effect on an engine's performance is another question, but the effect is real.

 

[AnD3rew]

The theory works. My point was that if the opening is facing sideways, then the airflow past the opening is creating low pressure at that point (and the faster you are traveling the lower the pressure). Whether it is low enough pressure to have a measurable effect on an engine's performance is another question, but the effect is real.

Agree the effect in principle is real, but when you have a couple of turbos down there they will get the air they need despite Bernoulie

 

[DaveB]

The theory works. My point was that if the opening is facing sideways, then the airflow past the opening is creating low pressure at that point (and the faster you are traveling the lower the pressure). Whether it is low enough pressure to have a measurable effect on an engine's performance is another question, but the effect is real.

Yes I agree with you 100%

 

[DCPU]

Agree the effect in principle is real, but when you have a couple of turbos down there they will get the air they need despite Bernoulie

Aren't there race series with turbo engines where they put restrictors in the intake to limit power?

 

[emax]

they asked me if they can put "my" car in their new showroom once it is ready

Never.

1. I wouldn't want all those people pawing at my car and pressing their snotty noses flat against my windows
2. The car is then no longer in the way at the dealership. But it has to be, so to get it out of the way it is sooner made ready for delivery.
3. The assurance that no one will touch the car is worth nothing: no one can do anything else all day but stand guard next to the car.

 

[emax]

Here is the pic from FB with production texturing on plastic:

View attachment 7804362

This does not look like one could turn it forward at all.