Ford V8 Discussion Discussion relating to getting the most out of your Ford-based V8 Miata's engine

below engine splash shield

Old 07-01-2019, 12:54 PM
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Default below engine splash shield

I've been told that the plastic splash shield that is installed on stock Miatas below the radiator is of value. Not only for aerodynamics but for encouragement of proper air flow through the radiator. Do you guys know if this piece will fit on a Monster 5.0 car?
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Old 07-01-2019, 04:29 PM
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Cool

I have read the same and a fellow MX5'r has a great DIY on the subject, not sure of his handle or I would give credit. This is what I plan on doing myself but as I work in a boat shop I may use thermoplastic / fiberglass. One needs to create a negative pressure under hood to make sure there is airflow through the rad and a under tray will help. I remember my first lesson with my 79 fox mustang when I removed the plastic front wheel wells, wanted to over heat any chance it got, I re installed plastic liners and we were back to F0RD 195F in no time. Plan your hood openings wisely with the MX5 and avoid pressure zones. To answer your question, NO I don;t beleve it will fit, however I am running a 19" tall rad, 16" would be much easier.

Party on
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Old 07-01-2019, 06:08 PM
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Wow, that is a great looking piece. Is there any chance that there is a template for that or is anyone selling something like that?
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Old 07-01-2019, 06:13 PM
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I just found their web site
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Old 07-02-2019, 07:43 AM
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Could you share the link or is it a secret?
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Old 07-02-2019, 12:27 PM
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For anyone interested - https://lrbspeed.com/product/na-miat...num-belly-pan/. They have some nice stuff.
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Old 07-02-2019, 01:35 PM
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Sure. Sorry about that. I just googled the three letters on the picture that you posted and found it. They do indeed have some nice stuff. The web site that you posted is correct. I'm waiting to hear back from them as to whether or not they can make custom shields to accommodate various V8 swaps.-Brad
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Old 07-02-2019, 03:32 PM
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Originally Posted by Brad Huff View Post
Sure. Sorry about that. I just googled the three letters on the picture that you posted and found it. They do indeed have some nice stuff. The web site that you posted is correct. I'm waiting to hear back from them as to whether or not they can make custom shields to accommodate various V8 swaps.-Brad
I hacked up my stock one to fit. Not sure it helps cooling a whole lot but it keeps the engine bay cleaner. I asked Martin about it when I was doing it and he said to toss it in the garbage, so I presume he thinks it does nothing constructive cooling-wise. Guess he'd know being in the sunny south.
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Old 07-02-2019, 06:15 PM
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I have the LRB undertray on a V* Roadster conversion
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Old 07-03-2019, 08:50 PM
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For MX-Brad-- What did you have to do to get yours to fit? You said hack it up to fit but is it a useful starting point or would I be better off with the LRB one?
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Old 07-04-2019, 10:29 AM
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I'll see if I can take a pic tonight. The car is still in storage till next month but I have the splash guard at home in the garage. I just had to trim the front edge to line up with the bottom of the rad support and trim some of the sides to clear the sway bar. It was quick and easy (and free) to do.
I only took it back off to try to find a slight oil leak that I think may be coming from my flywheel bolts. I used locktight on them, but I've read that I'm apparently supposed to use thread sealer.
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Old 07-04-2019, 12:41 PM
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Yeah, I still have mine laying around, and it has already been cut up from when the car had the FM turbo kit, I'll probably see if I can find a way to make it work.
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Old 07-04-2019, 01:44 PM
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I have an opportunity to buy one from a guy that is in original unmolested condition. Just wondering if that is the route that I should go. Even though Martin may have suggested to throw it in the garbage can, it still seems to me that it would have some value. Considering that air conditioned cars seem to be at their limit of cooling capacity, I just figured that every little bit might help. If I am wrong or overthinking this please tell me. Or could all of these perceived problems be cured with the addition of hood louvers? -Brad
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