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Cold Air Intake Mounting

DavisAR195

Jet Boat Junkie
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Happy Valley, Or
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Yamaha
Year
2017
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AR195
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19
Drewkaree, that brings up another question. Where do our boats draw their air from? What is the path it has to travel to make it to the engine compartment and what we can do to improve it.
Fresh air circulates into the engine compartment through vents under the back rest on the swim platform.
 
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Bowling Green Virginia
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Yamaha
Year
2019
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AR
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19
Anyone tried directing this air more directly into the intake to help get cooler. cleaner, denser air into the engine?
 

DavisAR195

Jet Boat Junkie
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Anyone tried directing this air more directly into the intake to help get cooler. cleaner, denser air into the engine?
A couple members have routed the CAI to the back of the engine compartment over the fresh air intake.
 

jEt_jAk

Jet Boat Addict
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The stock box looks pretty restrictive so I thought it was worth a shot. Still don’t regret it though because it opened up a ton of space in the engine compartment and also makes it much easier to reach the oil filter. It’s crazy how much space the stock air filter takes up.
 

Jgorm

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AR
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Waste of money if you ask me. I've done lots of dyno tests and CAIs are usually worth nothing and many times worse than stock. Adding an exposed snorkel to pull high pressure air won't even make a noticable difference on a boat.
 

sleepybear723

Member
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It’s not a cold air intake if you suck in hot air from the engine compartment.
 

Jgorm

Jetboaters Commander
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It’s not a cold air intake if you suck in hot air from the engine compartment.
From the guys that sell intakes for 100s of different vehicles. That's total bs. I'll bet they did the first dyno with a heat soaked vehicle, closed hood and no dyno fan. Then they cool the engine for 2+hr with multiple fans and throw a bag of ice on the intake. I made 30hp with a bag of ice on a blower for 15 minutes with no other changes. The customer wanted 600, and we got 602 with the ice. It'll never happen in the real world, but he got the 600 dyno sheet he wanted.
 

sleepybear723

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From the guys that sell intakes for 100s of different vehicles. That's total bs. I'll bet they did the first dyno with a heat soaked vehicle, closed hood and no dyno fan. Then they cool the engine for 2+hr with multiple fans and throw a bag of ice on the intake. I made 30hp with a bag of ice on a blower for 15 minutes with no other changes. The customer wanted 600, and we got 602 with the ice. It'll never happen in the real world, but he got the 600 dyno sheet he wanted.
I guess you don't know who Mr. Banks is. It's not total BS, it's engineering. I'd explain it to you, but I bet you're too stupid to understand.
 

Jgorm

Jetboaters Commander
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I guess you don't know who Mr. Banks is. It's not total BS, it's engineering. I'd explain it to you, but I bet you're too stupid to understand.
Lol, I've met him at sema. I ran a dyno shop for 5 years and tuned cars for 15 years. He's a great marketing guy! They make some cool stuff, but this is 96% marketing and 4% truth. I can cook dyno sheets with the best of them. You took the bait and swallowed the trouble hook. I have some turbonators for sale if you want to make things really fast.
 
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