Grill Block 2.25% Increase @ 50 mph.

[basjoos]

Originally Posted by Cobb

I notice the biggest improvement in my honda was from 50-70 mph acceleration for merging into traffic. Acceleration was much quicker and it didnt hurt my mpg as much.

Aero mods produce the functional equivalent of a horsepower boost at higher speeds. It won't do much for your 0 to 60 mph time, but has a huge effect on your 60 to 100 mph time.

[yoyoyoda]

Originally Posted by basjoos

Aero mods produce the functional equivalent of a horsepower boost at higher speeds. It won't do much for your 0 to 60 mph time, but has a huge effect on your 60 to 100 mph time.

If the cops ever find that out I wont be able to do my mods.

I think the only thing that I could do legally is a curtain air dam, with a smooth "mouth" to drag air in from the bottom of the radiator and then push it out the back, diverting it away from the engine, but my exhaust mainfold is in the way.

I suppose I could remove the last remaining radiator fan and make up an aluminium cowling around the radiator to keep air pressure high until it reaches the bottom of the car, preventing it from running into the engine while its inside of the engine bay.


http://ecomodder.com/forum/member-ae...ng-system.html

Definatley going to be a lot of head scratching after I attempt that one, especially about the front mouth of the front grille and intake to the radiator, possibly using some flexible plastic again.

Then, add a thin aftermarket radiator fan to the front air conditioner condenser, so I will have a way of keeping temps under control. There wouldn't be any space at the rear of the radiator as the aluminium cowling will take up the whole space available between the radiator and the engine manifold.

But that "This length equal to radiator height" will put me off severely, I would probably have to increase the front length of my bumper by at least 1/3rd of a foot in order to meet that requirement.

Is there any other options that I may be missing?

[Mista Bone]

You need to keep a radiator fan. If no fan, the engine WILL over heat if you get stopped in traffic.

[sarguy01]

Originally Posted by Mista Bone

You need to keep a radiator fan. If no fan, the engine WILL over heat if you get stopped in traffic.

Keep a radiator fan?? Never planned on taking out the radiator fans.

Today was 70* and the fan came on at long lights (The car was running...) but the coolant temp stayed under 208*.

[Mista Bone]

yoyoyoda is who just mentioned removing the last fan, didn't wanna quote his whole post.

[sarguy01]

Originally Posted by Mista Bone

yoyoyoda is who just mentioned removing the last fan, didn't wanna quote his whole post.

Got it. I was a little confused.

[Cobb]

I think its more efficient to use 2 fans at low speed, than 1 at high speed. I doubt the weight of the fan has an effect on mpg and it comes in handy for traffic and AC use.

[digital rules]

Originally Posted by sarguy01

Today was 70* and the fan came on at long lights (The car was running...) but the coolant temp stayed under 208*.

Is too hot about the same for most cars? The Scangauge shows max temperature @186 on my car. Just added an upper grill block today, but not sure what temp to look out for before removing the block?

Thanks!!

[Mista Bone]

Most Honda's I have dealt with, coolant fan comes on at 205, off at 200. Mind you this was before using a scan gauge, using an Autometer water temp gauge.

FYI: On Honda's up till 2000, the dash gauge does NOT move when the water temps is between 160F and 205F. You could be below the 170F needed to make ECU happy when using the heater in cooler months.

Years ago I wanted to use an RC servo (Futaba S148 or bigger) to control louvers for the grill opening for MPG while cruising as well as airflow below a certain speed, say 30 mph.

That same idea is now used on production cars like the Ford Focus.

[yoyoyoda]

Originally Posted by Mista Bone

Years ago I wanted to use an RC servo (Futaba S148 or bigger) to control louvers for the grill opening for MPG while cruising as well as airflow below a certain speed, say 30 mph.

That same idea is now used on production cars like the Ford Focus.

That is exactly what I wanted to do, I just didn't know what kind of servos I should use, now I know that I should use RC car servos.

Ty.