Superjetjim
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Does anyone have a picture of these installed please? Looks like they mount inside the bond rail, but are they flat plates/fins or do they have an angle/taper?
Blaster NYNJA JAM Sponsons?
- Thread starter Superjetjim
- Start date
BombThreat
'Diggity
- Location
- Johnstown, NY
Dont have a picture but have been running them since 2008. They mount up inside the bond rail, flush with the rear of the hull. They are tight against the hull but have a taper to them from thin to thick. Goes from about 3/4" to 1 1/4" (ballpark from memory).
Superjetjim
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Thanks bombthreat,
Just located a pic (along with an added bonus!)
I was expecting to see a 'fin' design more than a block of plastic - clearly they must work, but why not a fin mounted to the bond rail design?
Just located a pic (along with an added bonus!)
I was expecting to see a 'fin' design more than a block of plastic - clearly they must work, but why not a fin mounted to the bond rail design?
scottie mac
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The fins mounted don't do much of anything, so we started experimenting with these blocks in varying forms and shapes. The JAM Raving sponsons completely change how a blaster turns. It probably makes more difference than any handling component ever made for the blaster.
SM
SM
Superjetjim
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Thanks Scottie, would they be advisable for a Mod hull?
I've got these Riva ones ATM but they seem to stop the hull rolling into turns unless your going slow - I figured the mounting blocks for the Riva ones were stopping the hull from leaning over?
scottie mac
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The NYNJA ones will allow you to lean more than the ones in the pic for sure, but just remember, the mod hulls will cavitate more than a stock hull if you lean it too far. We have a mod hull with a triple in it with NYNJAs and it turns like it is on rails.
Ski looks good! Isn't that the one the guy over in England built?
SM
Ski looks good! Isn't that the one the guy over in England built?
SM
- Location
- Holmes, NY
I put the NYNJA Jam sponson's on one of my blasters towards the end of last summer. I am now putting them on the rest of my b1's! The cornering improvement is different as night and day!
Superjetjim
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Thanks for the clarity Scott.
Yes the ski is UK based (1 of 2 that made it over here) and is owned/rebuilt by me recently. The second one has now left the UK and is owned by 3rid on here and lives in the Netherlands.A
- Location
- lake placid,ny 12946
i bought that orange ski from ko2 with hot chic and even hotter jam sponsons im selling shipped for $125.00
Superjetjim
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Spot of feedback, had the Riva ones removed and the NYNJA ones fitted - sorry to say but, on the Mod hull at least, the Riva ones are better, much more predictable and hold the corners better.. The NYNJA ones have let go a couple of times and spun out.
scottie mac
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Where did you mount them???? If you mount them too far rearward, they will spin out in hard corners. You basically want the rear of the sponson to be even or slightly in front of the rear vertical plane of the hull. If you push them all the way rearward and they close off the rear corner of the ski, it doesn't allow the corner pocket to grab, causing a spin. You have the same hull as me, and you can look at any of my videos and you won't see me spin out one time.
SM
SM
scottie mac
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See how the sponson is forward enough to see the side of the hull? You can play with placement, but if you are much farther rearward than this, you will have issues with slipping in the turns.
Superjetjim
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Scott,
Mounted them as per the instructions, will try moving them forward.
Cheers
Jim
Mounted them as per the instructions, will try moving them forward.
Cheers
Jim
- Location
- Edmonton, AB
Scottie, I'm building a b1 1200. What are some of the best handing mods I can do to the ski? NYNJA sponsons, rideplate and intake combo ect..
scottie mac
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Not sure where they are telling guys to mount them, but placement on the mod hull is a little different than placement on the stocker. I should have mentioned that earlier, sorry. The mod hull is tighter at the back corner than a stocker because the hull is longer. You can go slightly farther back on the stock hull than on the mod. Will be interesting to hear what you think once you move them. I have yet to have a person tell me they don't like the sponsons once they put them on, lol. But, everyone sets their ski up different.
SM
SM
scottie mac
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XJCrawler,
Handling is such a funny thing. What is perfect for one person sucks for another. SuperjetJim is a perfect example. His riding style might not agree with the NYNJA sponsons. Doesn't mean he is wrong or they are, just everyone has a different idea of what is the perfect set up.
I like my skis extremely abrupt in terms of handling. My brother doesn't like how my skis are set up, he says they are too twitchy. Again, to each his or her own.
But, for ME, I prefer the Jam Sponsons (the race versions - longer) a worx intake and a pro tec ride plate. I also true my hulls. The ride plate to hull mating service is extremely important as well. A lot of the aftermarket ride plates bolt up fine, but have a tendency to hang slightly below the hull, creating a negative step. Usually skis with these mismatched plates ride with a list to one side or the other. Basically, when you bolt up the plate, take a straight edge and make sure there isn't a step from the hull to the plate. If there is, best thing to do is to machine the top side of the plate so it can sit up a little higher.
Little things mean a ton of difference on a blaster. Good luck.
SM
Handling is such a funny thing. What is perfect for one person sucks for another. SuperjetJim is a perfect example. His riding style might not agree with the NYNJA sponsons. Doesn't mean he is wrong or they are, just everyone has a different idea of what is the perfect set up.
I like my skis extremely abrupt in terms of handling. My brother doesn't like how my skis are set up, he says they are too twitchy. Again, to each his or her own.
But, for ME, I prefer the Jam Sponsons (the race versions - longer) a worx intake and a pro tec ride plate. I also true my hulls. The ride plate to hull mating service is extremely important as well. A lot of the aftermarket ride plates bolt up fine, but have a tendency to hang slightly below the hull, creating a negative step. Usually skis with these mismatched plates ride with a list to one side or the other. Basically, when you bolt up the plate, take a straight edge and make sure there isn't a step from the hull to the plate. If there is, best thing to do is to machine the top side of the plate so it can sit up a little higher.
Little things mean a ton of difference on a blaster. Good luck.
SM
Superjetjim
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See how the sponson is forward enough to see the side of the hull? You can play with placement, but if you are much farther rearward than this, you will have issues with slipping in the turns.
Ah that might explain it- mine are at least an inch further back than that - will change them!
Thanks
Jim
Superjetjim
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That's exactly what mine does, as it approaches top speed it leans to the left slightly as if it's going to spit you (it never does though) - ill go check that thanks.. Do you suggest filing the ride plate to hull void or leaving it open?
scottie mac
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I don't fill in the void. Check to make sure one side of your composite plate isnt hanging down farther than the other. The composite plates are famous for being warped. Joe would spend a ton of time getting them perfect by sanding her and adding there.
SM
SM