Great success with airdam on '98 Odyssey

[aerohead]

There's a risk for the splitter producing un-wanted downforce (induced drag).
The only way to quantify it would be in a tunnel.
Just the 1.5-inch pipe insulation taped to the front of 'baby',to soften the lower leading edge created 103-lbs of downforce,@ 200-mph.
Hucho reports that lift isn't an issue for vehicles traveling at 'normal' highway speed.

[westygo]

Top portion of grille block installed! I used black zip ties, almost invisible and very secure.
Going to get myself some kind of instrumentation for Xmas so will be able to see actual temperatures hopefully.
In other news, as warned here in the forum, mythe bends on my airdam have started to break, so had to remove it. Plan b coming up!
Next mod will be a warm air intake. Looks like the easiest way will be to attach a "collector " to the manifold heat shield and run an insulated pipe or tube over to the intake which is just behind the passenger headlight.
Stay tuned!

[westygo]

Aerohead, thanks for that info. I will start with the splitter lip plumb with the furthest forward edge of the bumper and see what happens. Can always shorten it if necessary, but as you say, no real way to quantify without a wind tunnel. Auto speed had a good article on how to measure lift, if I get that far. This van will likely never see any speed over 110 km/hr anyway.

[freebeard]

Where did the 'breaks' in the airdam start and which way did they propagate?

[westygo]

I had drilled holes at the corners of the tabs to relieve the stress before bending them over. I had been hitting a lot of curbs with the dam, and finally one of the end tabs broke off. Then another etc. The tabs broke right on the bend. So now I am looking for an extruded softer plastic "angle iron" to cut into new brackets instead of the one piece design I had. I will eventually be adding the front belly pan which will take the majority of abuse in the future.

[BamZipPow]

Originally Posted by westygo

Next mod will be a warm air intake. Looks like the easiest way will be to attach a "collector " to the manifold heat shield and run an insulated pipe or tube over to the intake which is just behind the passenger headlight.
Stay tuned!
Attachment 23107Attachment 23108

Any thought of using a separate heater core stuffed into the air box with its own control valve and plumbing the hoses off of the vehicle's heater system? You would be able to control the heat going to the air intake fairly easily.

[westygo]

Yep, considered that option. The air box has very limited access and the heater hoses are tucked away deep behind the engine, so plumbing would be a big ordeal. Going to go the easier way. Might get a friend to program an arduino to drive a servo actuated flap to regulate intake air temp at some point. But baby steps first!

[westygo]

Upper grille block complete!


Almost invisible :-)
Hopefully I will get some time over the next couple days to start on warm air intake, or maybe get the air dam and front pan on.