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Honest question: Does the pre 87 shield really have any practical value? If so what makes it worth the millions people seem to want to pay for it?
My solution for what to do when the temps outside hit 100-115 degrees is to park the Porsches and take the Insight.
Yes. When it's attached, the air flows through the radiator better. The pan increases the suction right behind it. The air still flows reasonably well without it, but better with.
Also, it keeps debris from being sucked up into the accessory belts. Plastic bags are one of the worst culprits for that.
Last, it provides some protection for the alternator & AC compressor. Not a lot, but some.
Originally Posted by Christopher Zach
...Most times when my 928S grounds out it seems to take the hit on those two forward skid plates ahead of the suspension. The fact it does this either means the car is too low or it needs new front shocks, I'm not sure which. I think I'll measure people's ground clearances at Frenzy.
Are you talking about the factory tow hooks/LCA front mounts? Or actual skid plates, like those sold by 928 Motorsports?
Ride height is measured at the bottom of the rear mount for the front LCA and the bottom of the rear suspension arm. Actual locations and heights are listed in the WSM.
I saw the cover going under the alternator a bit and although I could shape it that way, I figured to leave some clearance so that air would flow under the alternator more easily. Although one has scrapes on occasion, I am cognizant of my ride height compared to my other vehicles. Thanks for the info, I have something to think about.
I am done with the cut and fit. These will be installed at the level of the bottom of the front chin spoiler and extend to the oil pan. What are your opinions and does anyone want one? It is cut from 1/8" aluminum sheet stock
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Nice! Do you have pics before installed with your mounting holes drilled?
I cannot really tell from you pic how it is mounted. Are there any mounting points at the front edge?
-Jason
I built steel standoffs that mount to the five radiator housing holes for the body of the pan (visible in a row). The front of the pan sits on the lower lip of the spoiler braced between the brake ducts with two strips of structural foam & structural silicone.
I am done with the cut and fit. These will be installed at the level of the bottom of the front chin spoiler and extend to the oil pan. What are your opinions and does anyone want one? It is cut from 1/8" aluminum sheet stock
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I built steel standoffs that mount to the five radiator housing holes for the body of the pan (visible in a row). The front of the pan sits on the lower lip of the spoiler braced between the brake ducts with two strips of structural foam & structural silicone.
I hope you considered what would break first in a strike so you don't tear up something expensive or vital.
I think it looks great. I like the concept, but also think it would be good to keep the intent of the original pan of reducing the chance of the cooling air from recycling through the radiator. Since you now the location and height of the standoffs, would it be possible to bond a section of construction foam just in front of the bolt holes so that is seals to the chassis in front of the stand offs similar to the original pan? As this area is essentially shielded from aerodynamic loading the foam should be sufficient as all it need to do is block the air from moving forward due to the fan creating a low pressure in front of the radiator.
Giving this a little more thought (and I will need to take a closer look at my car for feasibility) it may make more sense to close out the gap between the upper edge pf the spoiler and the chassis at the grill slats. that would effectively force any air coming in through the grill to go through the radiator instead of allowing any to diver down below the lower radiator support cross member.
I designed the standoffs to fold if compressed so that the pan would not interfere with the radiator core structure. I already blocked off the airflow in the space of the standoffs with a structural foam member so that all of the air is directed through the radiator or below the pan itself. I would think that it could work with a 5mm acrylic sheet. What are your thoughts about that? I could reproduce this construction for $550 each in aluminum shipped.. One would need a chin spoiler for it to work, however.
Well, the 75 mile shakedown run proved the pan to work in keeping the temps down. I actually saw the needle drop below the second line while cruising on the highway. Although my temp gun says the engine is running way below 200 degrees, the indicator works fine and showed a decrease none-the-less.
07-21-2019, 11:52 PM
