DIY Miata Short Ram Intake!

In this video I clean up the Miata's engine bay a bit, both in washing and in swapping out the stock long tube intake in favor of a short ram intake using a 90 degree silicone elbow and a cone filter. Other Items you'll need are some 3/8 rubber tube from your local auto parts house and a 3/8 hose barb and union. I didn't link the cone filter because it's a little too big and there are better size options out there.
Leroy Engineering also has a great informative video about intake length and power differences. Check out this video about intake length.
• Miata Dyno Tests: What...
2.5" to 2.75" 90 degree silicone elbow
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T-bolt Hose Clamps
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[@InitialMX5-js9px]

I've been thinking about switching to a short air intake, think this video is a sign for me to do it. thanks for showing the process!

[@thirdgengarage]

Yeah, I was on the fence about it for far too long, glad I finally did it. No problem!

[@6siks]

Looks like I am too late to explain the intake: I have ran this set up before going ITBs, with stock ECU, no PS or A/C, and a full exhaust system with a cat, I ran at 126 WHP. This style intake works better for higher end power than torque. If you want optimal gains for mostly stock set up, run a large U-bend by the intake manifold, 21 inches in length.

[@thirdgengarage]

Thanks for the info! I've seen the 21 inch U-bend intakes before with positive comments on forums. Maybe i'll give it a try in the near future.

[@6siks]

@@thirdgengarage or go itbs lol. Either way I'm curious to see what's next.

[@bloopdog5167]

it really is a negligible difference, the valve cover breather is to vent crankcase pressure, it does vent it back to the intake in a loop, but youre not giving it "unmetered" air per se if you vent it and block the hole in the intake. its more about a vacuum leak, which ive personally not seen an issue with myself running a short ram.

[@thirdgengarage]

Yeah, Not knocking the breather filter, I haven’t heard of anyone having issues with them. It just seemed to make sense to me to keep it connected to the intake, wasn’t difficult and probably cost about the same.

[@griffinmackenzie]

hot air intake

[@2seater_mx5]

Leroy engineering proved that there is no notable difference in terms of performance between having 60º air and 90º air, at least on a N/A engine with no other performance modifications.
also as a side note, when driving, the engine bay of a miata renew it's air every 4 seconds, so its not that hot in there.

[@griffinmackenzie]

@@2seater_mx5 lol the air density would be not equal at 60 degrees and 90 degrees so how could there be no difference in performance? makes no sense