Your intake should be drilled and tapped for 5/16-18 through bolts.  Install black oxide grade 8 fasteners with nylon locking nuts on at least the rear two bolts.  The front two might interfere with your oil pan.  Use a lot of anti-seize.  Replace these fasteners every season.  Do not use stainless bolts with a loader, they are equivalent to grade 2.

Before you install it, check it thoroughly for cracks and corrosion that might cause it to fall.  You should inspect it every trip.

Please be advised that the failure of this part can flip your boat and kill the occupants.

Other than that, the right loader is a positive addition.

Good question,I would ask also what does this type of grate do for a jet?

We make loaders.  The stressed parts are 4130 chromoly.  The ramps are 1018 cold rolled mild steel.  Most importantly, we actually carry product liability insurance for the loaders we make.

We also consider these a disposable part even though we make every effort to provide the best part possible.

Good question,I would ask also what does this type of grate do for a jet?

There are different styles of loaders.  Mostly, we just change the length of the ramps for the hull type and how the intake is installed.

That one seems to work good in 21' cruisers.  Not too much drag and still loads the pump well.

Here is a picture of the loader that I got from b1, Joe knows what he's talking about, I'm sure he had a hand in this one lol


Sent from my garage drinking a cold beer!!!

My punishment is to cut the chromoly  :-(

Gotta throw out the disclaimer

I'm am not spamming or trying to sell parts!

I am simply trying to help a brother out by answering a question

I just wanted to put it on here because when I got it I was really impressed by the quality and it's been a good thing in my boat.


Sent from my garage drinking a cold beer!!!

BAM! .

Read through the loader thread detailed by Flusher and once again Very Good Read, thanks for taking the time!

As I'm building my current boat safety is always on my mind. Crashing is not an option. I have an awesome wife & kid in college.

I've achieved acceleration and top speed that I've never experienced in any other boat that I've owned.

Before my last outing for test & tuning I removed the loader and made a plate to put in it's place.

It's the XS Extreme version and now I know it was the wrong loader for this boat. Runs better without.

I did notice a slight loss of suction in some river chop, I was showing off going by Roadrunner and couldn't seem to get my foot off the gas 

I immediately thought was that its due to not having a loader. I ran hard that evening in that light wind blown perfect chop kind of water and didn't notice any loss in suction.

My plan has always been to contact B1 for my next boat part, that being a loader designed for my set up.

Without a shoe, it can be beneficial to run a more aggressive loader that has ramps with leading edges below keel.

Adding a shoe and a loader both increase drag.  Typically a ride plate is added along with a shoe.  A ride plate generates lift which reduces wetted surface area on the hull, reducing drag.  Loading vs. drag is a balancing act.  For optimal results, testing & tuning is required.

Here's the thing, do you need optimal results?  As a manufacturer, we need to look at the big picture.  What is the application?  Who is the customer?  For someone who just wants to enjoy their boat with a little more speed and efficiency is not going to be happy with the same parts that someone who is trying to make the top 10 list.  Some users just want to get in their boats and have it work, yet some get off on how every little change will affect performance.  Lastly, a 70 MPH ski boat does not require the same construction that a 120+ MPH race boat does.

Ultimately, we consider loaders to be required equipment.  If they didn't work, we wouldn't make them!  Every boat on the top 10 list is running a loader.  If something on any one of those boats didn't contribute to performance, would anyone continue to run it?

Every case presented against the use of loaders is an example of the wrong combination.  There is justification for the use of rock grates, some boaters just can't stay off the rocks.  I am willing to bet that any boat will pick up performance simply by removing the rock grate.  Even more if an effort to blend the recession for mounting the grate is filled to blend in the contour of the intake roof.