78 comments for such an overlooked tuning mod, that is for anyone doing things properly. You had my subscription at the Will Farrell cut away! Great job lads
Wow excellent testing! if it makes this much of a difference on a small miata engine I can only imagine the results are multiplied with bigger vents on a larger engine bay with a bigger and more powerful engine!
Glad to see this tested. I've been looking into getting a pair. Should probably check out a Flyin Miata oil cooler if you're worried about the oil temps.
Yeah, Ill check out their kit. I was really concerned seeing 240, seems like its fairly common but if Im going to drive down to MATG I need consistently lower temps.
@@NappMotorsports never hurts to be too careful with cooling. I run one and never see temps get above 200 in Florida. I'm overhauling my radiator situation with a Flyin Miata rad and brushless fan kit, since I kept seeing 230 fairly regularly
I started with an angle grinder but ended up using snips on my NB hood. Much easier to get a clean cut with the snips. RTheory vents here and I'm very happy.
I believe hood vents provide a bigger benefit at slow speeds. If your hood and engine bay is just a big upside-down cup with a set of red-hot headers inside, it's gonna get hot. Simply letting that air go upwards through natural convection is all you need. Look at the Seibon GTR style hoods for E46 M3's. When they pull the car into the pit, that's where those hoods count.
Nice video. Oil temp is no issue unless where you are reading it is noted. I read at the pan on my car and run north of 260. Still looking at vents but you do get more drag so there is a trade off. Thanks to the Miata crowd for always doing great research on these subjects. Very clean install!
Alright this is the second hood vent video I've seen in 2 days and they both seem simple so I think I'll end up doing this while I still wait to find a affordable engine for my miata.
watching this because I would love to add some hood vents to my vehicle it's one of those SkyActive motors and I love everything about it the power is great sounds good The only issue is it's probably the most sensitive car I've ever had as far as how much it cuts power when it's hot out for the engine is hot not overheating but let's say it's 80° and it's been idling for 10 minutes or so I can feel that the power is down
Did this to my 97 over the winter. It didnt need it as the engine is stock, but i think it wanted one…as per the usual, your setup looks much better than what i did. 😃
Even on a stock car and engine I think vents if some sort will help dramatically over a long time just by helping it breath that little bit easier thus less stress on everything
Great video with really clear install & feedback. Thinking back your previous IAT test for the naca duct and TSI intakes, it would have been interesting to see the individual effect of the TSI's and naca duct. I seem to remember that it was the naca duct that had the biggest effect. Oil temps at 240 on a highway run seems hot. What was your oil pressure like at idle immediately after the run? At 240 F it should have been pretty low (unless you are running 5W-50 oil or similar). Perhaps your gauge/oil temp sensor needs calibrating? On track with my turbo 1.6 during summer temps of 85 to 90 F, I only got a max oil temp of 195-200 F (albeit with an oil cooler). Conclusion: You DEFINITELY need an oil cooler!!
As far as intake temps at first I thought the same, but from the stock run intake temp was only 12 degrees higher than the ambient air so I believe these results were still solid.
You won’t see major benefits while street driving. Track driving creates higher engine temps, but also provides more air flow because of the higher speeds. Thanks to that additional air flow, the Louvers will help keep temps stable instead of getting increasingly hotter as air gets trapped in the engine bay.
There may be a solution to not getting water nor snow in your engine bay with hood vents ,but not sure hence I am asking. There is something called rain guards for hood vents but I am not sure if they work nor if they also guard the air away
Temperatures were consistently different across the board but like we said in the video, take our results with a grain of salt, we didn’t have 100% control over the environment.
Here are a set of universal hood vents from Spiked. Just make sure to check un the under side of the hood. spikedperformance.com/products/universal-hood-louvers?_pos=1&_sid=964df78dc&_ss=r
I have a C6 corvette, I have heavy and light rain in my area and my car sit outside. I drive it daily. How will the vents handle water, can they close? Or do they have shields that stop water leak?
They don’t close, but dylan drove his turbo miata with these on with absolutely no issues. Rain or shine. You could fab up some covers if you really wanted to, but your engine bay is water proof, so it’s not really necessary.
Can I put a hood vent in top of my 2011 Transit Connect.I want to have some air on it.And probably from that hood vent hot air escape up,so engine while in traffic,is cooled. I will put 3 hood vents,two in side,and one big inside liks Mitusbishi Evo.
Hi everyone my question is if i do that in my bmw 1 And the engine starts to heat if the rain drops to my engine it well be any damage??? Can someone suggested me if is worth to do it Thanks
On normal riding the test is not sence, you should made this test on a circuit pushing the car and will see a complete different result, please be serious...
@@NappMotorsports it's for people going through a midlife crisis that can't afford a nice convertible. It is certainly not the most raced chassis in history.
@NappMotorsports ok, I did a quick search. The winner is the BMW M3 which I found surprising. You need to look at your sources. A Mazda dealership website isn't accurate data. Besides that, what race uses a Miata? F1 Is the most popular race in the world, and they don't use miatas.
