Check out this incredible install of "The Ultimate" Cold air intake for SHO/SVHO

[Green Hulk]

One of my customers just installed his Ultimate cold air intake on his GP and I wanted to share the pics with you guys. Instead of using the stock plastic bulkhead he used lexan and some custom 4" mounts for the vent hoses. VERY NICE and CLEAN setup!

Be sure to check out my video overview explaining the kit

https://youtu.be/3yU7DHBbBdQ

"The Ultimate" Cold Air Intake Kit for All Yamaha Waverunners "The Ultimate" cold air intake kit will fit all Supercharged Waverunners, both SHO and SVHO models. The kit is easily installed into the front...

ULT YAM Kit

$224.95 $199.95 11% discount

[mikeFZR]

Bad ass! If anyone is curious, Lexan is extremely easy to work with... I've used it for years. You can buy sheets of it at Lowes and cut that out in a minute on a bandsaw. Just make sure you buy "Lexan" and not the cheep plexiglass stuff... Lexan is much stronger and won't splinter when cutting like regular plexiglass will.

[K447]

In the original video for the install I thought Jerry located both outside air tubes quite low on the bulkhead rear panel. Reviewing the video I realized they were low as shown assembled on the workbench, but when installed one vent tube is higher than the other.

If the hull is ever flipped over and ends up floating upside down, the lower those mounted tube ends are, the less chance of water flooding into the hull though the hull vent tubes. When the hull is inverted, the tube ends need to be above the outside water level to avoid hull flooding. In this case the front storage compartment would be flooded.

I don't know whether the risk is partially mitigated by having the vent tubes linked to the storage compartment, which has a small interior volume. The front storage area is not airtight, it is open to the rest of the hull around the edges of the bulkhead.

In the photo below one of the hull vent tubes is mounted quite high on the clear panel. If the hull was inverted, that tube end would be that much lower relative to the water level outside the hull. Seems more likely water could flood through that hose. As water enters the inverted hull it adds weight, and the hull will settle even lower in the water, allowing even more water inflow.

The installation otherwise looks clean, but having both of the outside air tubes mounted as low as possible seems advisable.

[BLASTER 1]

I didn't know Jerry was selling these, I made my own about 2 months ago, works fantastic
I wasn't happy with the direct connection to the charger, it would make my seat fludder and make whistling sounds. Don't ask me how it just did

[SpeedJunky]

In the original video for the install I thought Jerry located both outside air tubes quite low on the bulkhead rear panel. Reviewing the video I realized they were low as shown assembled on the workbench, but when installed one vent tube is higher than the other.

If the hull is ever flipped over and ends up floating upside down, the lower those mounted tube ends are, the less chance of water flooding into the hull though the hull vent tubes. When the hull is inverted, the tube ends need to be above the outside water level to avoid hull flooding. In this case the front storage compartment would be flooded.

I don't whether the risk is partially mitigated by having the vent tubes linked to the storage compartment, which has a small interior volume. The storage area is not airtight, it is open to the rest of the hull around the edges of the bulkhead.

In the photo below one of the hull vent tubes is mounted quite high on the clear panel. If the hull was inverted, that tube end would be that much lower relative to the water level outside the hull. Seems more likely water could flood through that hose. As water enters the inverted hull the hull will become even lower, allowing even more water flow.

The installation otherwise looks clean, but having both of the outside air tubes mounted as low as possible seems advisable.

The two vent hoses go directly back out of the hull so absolutely no water would enter the hull.

[K447]

The two vent hoses go directly back out of the hull so absolutely no water would enter the hull. [ATTACH]420987[/ATTACH]

The hull vent tube fittings would be precisely where the water would go IN, if the hull is floating inverted in the water.

Imagine the hull is upside down in the water. How far below the water surface would those hull fittings be?

How far below or above the water surface would the other ends of the two vent tubes be?

If water is flooding through the vent tubes of the inverted hull, the front storage area will begin to fill with water. The storage compartment is not fully sealed from the rest of the hull interior. As water flows into the hull it will settle deeper into the water, allowing more water to come in.

[youngDUMP]

That looks sick! Very clean install. I'd have to open the hood at every sandbar a me show that off. Great job

[Boostalmighty]

ive been looking at this intake system and I'm failing to see the benefit to sucking in air from the forward compartment. its gets good and toasty in there after a spirited ride. I still think pulling air from the vent for maximum flow and the coolest possible air.

[SpeedJunky]

Just rode the ski and the system works great! Great job Jerry!!

[Green Hulk]

ive been looking at this intake system and I'm failing to see the benefit to sucking in air from the forward compartment. its gets good and toasty in there after a spirited ride. I still think pulling air from the vent for maximum flow and the coolest possible air.

Because the forward engine compartment is isolated from engine heat, and cool fresh air is ducted from both hull vents to the storage compartment. The engine is sucking air at a rapid rate allowing no time for that front compartment to get hot/toasty

Sucking air from only one hull vent isn't enough. Those that are doing this are hurting performance You would have to use some sort of Tee fitting and suck air from both vents to supply adequate air to the engine.

[BLASTER 1]

Because the forward engine compartment is isolated from engine heat, and cool fresh air is ducted from both hull vents to the storage compartment. The engine is sucking air at a rapid rate allowing no time for that front compartment to get hot/toasty

Sucking air from only one hull vent isn't enough. Those that are doing this are hurting performance You would have to use some sort of Tee fitting and suck air from both vents to supply adequate air to the engine.

Jerry, I used a tee to suck from both intakes and I was getting a slight whistle sound then the sides of my seat would fludder in and out real fast which told me it was starving for air. I then went to my current setup and it all went away plus it's much safer as far as sucking in water

[Green Hulk]

Jerry, I used a tee to suck from both intakes and I was getting a slight whistle sound then the sides of my seat would fludder in and out real fast which told me it was starving for air. I then went to my current setup and it all went away plus it's much safer as far as sucking in water

your setup looks very nice and clean also! Sucking from the front compartment is the way to go, especially on a GP as you have that extra volume of air already there. If you look at the cowls on the GP there is not much air space between the vent and the cowl like we have on the FZ's and FX skis.

[Dg1148]

your setup looks very nice and clean also! Sucking from the front compartment is the way to go, especially on a GP as you have that extra volume of air already there. If you look at the cowls on the GP there is not much air space between the vent and the cowl like we have on the FZ's and FX skis.

I've added vents to help air supply. Seemed to help lower the "shutter" sound as it's sucks the air from between the gaps of the seat and cowl

[BLASTER 1]

[ATTACH]421059[/ATTACH]

I've added vents to help air supply. Seemed to help lower the "shutter" sound as it's sucks the air from between the gaps of the seat and cowl

Dg1148,
Where did you find those vents? I want

[Dg1148]

They are frogskinz. Just used a hole saw and a dremel. Really easy to do. Comes with a template as well