DIY intake? 22 RXPX

[Colorado Jr]

Ok shall I purchase a JP intake or is it cheaper to do a diy one ? Thoughts to anybody to tried it.

[John's truck]

Can't speak to the JP but I'm sure it's nice. Here's the eBay parts for my DIY intake on the GTX 300. Prices have gone up but it looks like you can still build one for $90





Finished product

[Turbo831]

DIY is cheaper, 3" to 4" 90* silicone elbow, piece of 4" aluminum pipe into a marine air filter such as RIVA 4 K&N Marine Filter [RK13090-3-SD] : PWC Performance Parts (4-tecperformance.com) and a couple of clamps. Runs around 100$. JP is twice that for the same pieces just with a logo on them.

[Colorado Jr]

DIY is cheaper, 3" to 4" 90* silicone elbow, piece of 4" aluminum pipe into a marine air filter such as RIVA 4 K&N Marine Filter [RK13090-3-SD] : PWC Performance Parts (4-tecperformance.com) and a couple of clamps. Runs around 100$. JP is twice that for the same pieces just with a logo on them.

Dude that's what I'm talking about I like the diy route.

[Colorado Jr]

Ok I like this so I went ahead and just bought those parts from eBay. Thanks so much

[John's truck]

Ok I like this so I went ahead and just bought those parts from eBay. Thanks so much

So when you go to put it on, you might want to remove the factory air elbow. That's up to you. I removed the intake manifold from the ski to chisel out the internal flame arrestor (ghetto IMUK) so I used that chance to remove the intake pipe from underneath it. I left the factory airbox on the gas tank since the rectifier mounts to it and it wasn't bothering anything. You will need a catch can, since the breather vent normally connects to the factory intake pipe and since that isn't connected to the supercharger anymore you don't want that just venting in to the hull

[Colorado Jr]

So when you go to put it on, you might want to remove the factory air elbow. That's up to you. I removed the intake manifold from the ski to chisel out the internal flame arrestor (ghetto IMUK) so I used that chance to remove the intake pipe from underneath it. I left the factory airbox on the gas tank since the rectifier mounts to it and it wasn't bothering anything. You will need a catch can, since the breather vent normally connects to the factory intake pipe and since that isn't connected to the supercharger anymore you don't want that just venting in to the hull

Yeah thanks I have a catch can on now. Why did u chisel out the flame arrestor ? You have pics of the elbow to remove and what you chiseled out?

[Water4fire]

That is my same intake setup, but I used a jetworks filter. A little more $$$ so I may try this one. One thing to note is cheap silicone adapters will collapses. It is a little but that elbow will collapse under high rpm.

[Colorado Jr]

That is my same intake setup, but I used a jetworks filter. A little more $$$ so I may try this one. One thing to note is cheap silicone adapters will collapses. It is a little but that elbow will collapse under high rpm.

Any suggestions instead of the cheap silicone adapter ?

[DR2006RXP]

Any suggestions instead of the cheap silicone adapter ?

Yes , get the 4 inch adapter and do 4 inch all the way down
eBay item 334309686961

[guybb3]

One thing I would have done differently was use the 4 inch elbow and RIVA or similar 4 inch to 3 inch velocity stack. I think this is what DR2006RXP is showing above.

[Colorado Jr]

Ok so that 4 inch adapter with what 90 degree hose? Best one ?

[Colorado Jr]

Something like this ?

[John's truck]

Ok so that 4 inch adapter with what 90 degree hose? Best one ?

It's not going to make a significant difference. The reason people use those clamp on velocity stacks is because when everyone ran Kanaflex intakes (4ÔÇØ spiral hose) to the front of the ski, they needed something to adapt down the hose down to the 3ÔÇØ supercharger inlet. When you're going from a 4ÔÇØ filter and aluminum stub, you can use a silicone 3-4 90. I would love for someone to post a back-to back test showing a 4ÔÇØ 90 clamped to a velocity adapter gave a an rpm or airflow increase. With the setup I posted, there already is a trumpet shape at the base of the air filter, then it's a smooth reduction in diameter down to the supercharger inlet. You aren't going to get some ÔÇ£double increaseÔÇØ of airflow because you used double trumpets. Just keep it simple

Now, if you're worried about it flopping around, the one I posted is 3 ply. It's been perfectly fine in our 300 for 2 years. But if you want something stronger, just look for an identical 90 elbow but in 4 ply. If you can't find one on eBay, head over to www.siliconeintakes.com and they have literally everything you could imagine

[Colorado Jr]

It's not going to make a significant difference. The reason people use those clamp on velocity stacks is because when everyone ran Kanaflex intakes (4ÔÇØ spiral hose) to the front of the ski, they needed something to adapt down the hose down to the 3ÔÇØ supercharger inlet. When you're going from a 4ÔÇØ filter and aluminum stub, you can use a silicone 3-4 90. I would love for someone to post a back-to back test showing a 4ÔÇØ 90 clamped to a velocity adapter gave a an rpm or airflow increase. With the setup I posted, there already is a trumpet shape at the base of the air filter, then it's a smooth reduction in diameter down to the supercharger inlet. You aren't going to get some ÔÇ£double increaseÔÇØ of airflow because you used double trumpets. Just keep it simple

Now, if you're worried about it flopping around, the one I posted is 3 ply. It's been perfectly fine in our 300 for 2 years. But if you want something stronger, just look for an identical 90 elbow but in 4 ply. If you can't find one on eBay, head over to www.siliconeintakes.com and they have literally everything you could imagine

That's funny I just saw that website come up lol. I think I'll go with your suggestion as I already ordered it. Heck I can always change later down the road.