SXR Does a less aggressive intake grate launch a wake higher?

[Matt in Houston]

I am learning as much as I can and I have searched/read many topics on the subject of intake grates, but I thought I would throw the question out there. I currently have an R&D intake grate and R&D plate on my SXR, and I am wanting to put my new d-cut stock plate on. I know I will have to make a modification to make it work with the R&D grate, so I am considering a new grate.

I want to set up this SXR to be more playful and it will be used for general riding, sliding, and wake jumping. I dont race it or run bouys. Water conditions are either smooth to slightly choppy, used in a freshwater lake.

I have my eye on the Worx 205...I also have read the Jet Dynamics is good but I dont see anything but the "deep" version for the SXR which is probably too aggressive for what I am looking for. Any other suggestions?

And...back to the question at hand, does a less aggressive intake grate not suck you down to the water as much, potentially allowing for higher wake launches?

Thanks!

Matt

 

[FearMyWrX]

Hey Matt.

Im not 100 percent sure with SXR's but I'm curious as why you would need to modify your Intake Grate in order to D-cut your ride plate. There shouldn't be any need to.

Also, I'd double check your part numbers. The Worx 205 is a superjet intake grate. The 222 and 225 are SXR grates, there maybe others as well.

Personally, assuming you don't need to modify your intake great (which I think you don't) you should just stick with what you have.

I don't want to be the guy that says, "buy a superjet" but it seems like your trying to spend money and make modifications to a ski to serve a purpose thats it wasn't intended for. If you don't ever race or chase buoy's, you may consider picking up a different type of ski that would be more fun for you. Thats a call only you can make but Im just throwing it out there.

To answer your question, a more aggressive scoop just adds more drag which gives you more hookup. I don't consider this something thats going to negatively effect wave jumping performance. If anything, it may even enhance it because of longer hookup as your ski is leaving the water.


*** Edit, i saw you have a newer superjet in your sig as well.

 

[Texan33]

I want to set up this SXR to be more playful and it will be used for general riding, sliding, and wake jumping. I dont race it or run bouys. Water conditions are either smooth to slightly choppy, used in a freshwater lake.

Matt

For me, the stock grate and ride-plate with straight cutout works great for general riding, sliding, and wake jumping.

 

[Matt in Houston]

Hey Matt.

Im not 100 percent sure with SXR's but I'm curious as why you would need to modify your Intake Grate in order to D-cut your ride plate. There shouldn't be any need to.

Also, I'd double check your part numbers. The Worx 205 is a superjet intake grate. The 222 and 225 are SXR grates, there maybe others as well.

Personally, assuming you don't need to modify your intake great (which I think you don't) you should just stick with what you have.

I don't want to be the guy that says, "buy a superjet" but it seems like your trying to spend money and make modifications to a ski to serve a purpose thats it wasn't intended for. If you don't ever race or chase buoy's, you may consider picking up a different type of ski that would be more fun for you. Thats a call only you can make but Im just throwing it out there.

To answer your question, a more aggressive scoop just adds more drag which gives you more hookup. I don't consider this something thats going to negatively effect wave jumping performance. If anything, it may even enhance it because of longer hookup as your ski is leaving the water.


*** Edit, i saw you have a newer superjet in your sig as well.

Thank you for the insight. Yes I was mixing my part number up...I have read so much things are starting to get jumbled in my mind.

Yeah about the intake and plate combo, I was reading that the R&D intake is designed to match up to the R&D plate, and if you run the stock plate you must notch it out or cut of the tab on the end of the intake grate so that they will fit. Since I have a stock d-cut plate in my garage that I have never used, I was thinking of switching intake grates on the SXR so that the stock plate would fit without modification.

Here is a link to a random ad off the internet, and at the bottom it says the grate and plate must be used together.

http://www.performancecatalog.com/KAWASAKI-SX-R-R-D-Intake-Grate-p/111-80001.htm

 

[Matt in Houston]

For me, the stock grate and ride-plate with straight cutout works great for general riding, sliding, and wake jumping.

Thanks, I have the stock ride plate but the previous owner did not have the stock intake grate. I bet I can find a stock intake grate for cheap, but is there anything better for this purpose?

 

[Texan33]

Yah, there will be a stock grate for cheap. I have not try anything else. I'm pretty much satisfied with the setup for general purpose. You could try to do the straight cutout and do the D-cut. A lot of people tried it and loved it. You can also do the quick steer mod. It allows you to turn the ski faster. On the existing nozzle, you can drill a new hole closer to the nozzle for the steering ball connector. It allows the steering nozzle to move sideway faster because of the shorter radius between steering ball and nozzle. I might try it out next season.

 

[bikerdib]

Matt, how's that Superjet? I'm the guy that said I looked at it too when you were buying it.

 

[Matt in Houston]

Matt, how's that Superjet? I'm the guy that said I looked at it too when you were buying it.

The Superjet is awesome...It feels completely different than the SXR. Very nimble and powerful, easy to jump out of the water with. I prefer it best if I only had to have one ski but the SXR rides so smooth I have no plans to get rid of it. In fact I just came in from riding it just now.

 

[snirunner24]

From what I understand the old r&d grates need to be cut (I had to mod mine) but the new ones are stock size. not sure but that's what I was told. As for better for jumping I would say the scoop helps the ski to stay hooked up which will make it faster on bottom and about 1 mph slower at top end. If your looking for more snap timing advance and dry out the water box a bit.

 

[Matt in Houston]

From what I understand the old r&d grates need to be cut (I had to mod mine) but the new ones are stock size. not sure but that's what I was told. As for better for jumping I would say the scoop helps the ski to stay hooked up which will make it faster on bottom and about 1 mph slower at top end. If your looking for more snap timing advance and dry out the water box a bit.

I have done the timing advance...That combined with a stubby cone made a good difference. Whats the trick to drying out the water box?

Another reason I asked about the grate is because I read in an old thread someone mentioned an aggressive intake grate can actually suck the hull down too much, making it harder to leave the water. I certainly dont want that. But from what most people are saying so far that is not the case. I guess the best way is to just try them and see.

I appreciate all the help so far!

Matt

 

[Texan33]

Whats the trick to drying out the water box?

I installed a Jetworks Flow control value in mine before this season. I took the water box out last week and it was 99% completely dry! The water box had a lot of water in it last year before I put in the Flow control value.

 

[djkorn1]

2x on the flow control valve. On my SXR hull, I cut the rideplate flush and rode with a STOCK intake grate. It DID make it more playful and able to jump and slide better. The SXR hooks up fine with the stocker, unless your racing, stick with that.

 

[bikerdib]

IMHO, you should leave the SXR as a carver and use the SJ for when you want to get air. Why try to make them ride the same. Both have their own personalities now. You are lucky enough to have one of each, use them at what they are best for.

 

[Matt in Houston]

2x on the flow control valve. On my SXR hull, I cut the rideplate flush and rode with a STOCK intake grate. It DID make it more playful and able to jump and slide better. The SXR hooks up fine with the stocker, unless your racing, stick with that.

Thanks, that is also good information. I will do a search on the best way to install and setup the flow control valve.

I know the R&D grate I have now is pretty aggressive...it really puts on the brakes when you let off the throttle too much.

For now, I can get it to slide some but not consistantly; which will probably come with more practice at it. At faster speeds it tends to slide-grab-slide sometimes which makes it difficult to control without getting tossed. Going slow is easier. I'm sure this is not the grate and plate combo to practice sliding with but hey its fun anyway.

 

[Matt in Houston]

IMHO, you should leave the SXR as a carver and use the SJ for when you want to get air. Why try to make them ride the same. Both have their own personalities now. You are lucky enough to have one of each, use them at what they are best for.

I see your point and I have considered that, but I just don't really have an interest in carving at all right now...but I do know the SXR can be setup more playful and thats all I'm looking for. I dont have any unrealistic expectations for it...I know its heavy. Just a little more loose, laid back ride is all I want...It's a great cruiser when I'm bopping around or following my wife and kid when they are on the couch. I'm probably getting a wetpipe for it this winter. My main ride though is the SJ, but its already setup pretty good as it is. I might change out the plate on it though, it has a worx extended plate.

 

[snirunner24]

Dual cool it. And put a flow control going into the water box its night and day

 

[jetfueluel]

Hi, take a look at the RRP video of the XFS, I know it's a different hull but they use the shallow worx intake grate rather than the deep one as the hull releases easier

 

[WET BOX]

I see your point and I have considered that, but I just don't really have an interest in carving at all right now...but I do know the SXR can be setup more playful and thats all I'm looking for. I dont have any unrealistic expectations for it...I know its heavy. Just a little more loose, laid back ride is all I want...It's a great cruiser when I'm bopping around or following my wife and kid when they are on the couch. I'm probably getting a wetpipe for it this winter. My main ride though is the SJ, but its already setup pretty good as it is. I might change out the plate on it though, it has a worx extended plate.

^^^^^ It's because the SXR is just more fun to ride......................... IMHO, of course. But it does have the ring of truth to it.

Later.

 

[Matt in Houston]

^^^^^ It's because the SXR is just more fun to ride......................... IMHO, of course. But it does have the ring of truth to it.

Later.

I think the SXR is a lot of fun too, no doubt.

Nice pic in your avatar...How is your SXR setup?

 

[bikerdib]

I've owned an SXR and I wish I had kept it. I agree, the SXR is very good at what it does and doing that is lots of fun. At the same time, the SJ is very good at what it does and doing that is lots of fun. That is my point Matt; you have both, why try to make them more similar? Again, this is just my opinion but instead of making them perform more similar, take them in the oppisite direction to improve on what they already excel at.