Blaster Waveblaster Set back pump or Solas non Setback

[GaSs_ZA]

Hey guys,

Has anybody ever compared a solas non setback to a full mag setback 144mm pump?

Does the extra performance outweigh the cost on getting the mag setback pump?

If anybody could comment on their experiences with their own boats with either of these pumps that would help thanks.

 

[Superjetjim]

I've had both Skat and Solas in 144, the Skat is defiantly better, but not 'that much' better to justify 3x times the price.. The build quality (in terms of bearing seating area) is much better on the Skat, I had to have my Solas modified to except the bearings easily enough to allow them to not crush the races so much that they 'pick up' in use (regardless of how the bearing is fitted)

On SOME Solas pumps - If you don't enlarge the bearing area the bearings area slightly compressed once fitted which places great pressure on the balls causing them to pick up and square off the races - this happened after 4 mins use on Koyo bearings!



We enlarged the bearing seating area to allow the bearings to drop in easily, it's been perfect ever since.


If it's tight to start with and you put the pump in cold water it shrinks and crushes the races even further..

Before modification..



After modification..

 

[wanderer1]

I read the OP's question as asking for the benefits of a billet "set back" versus a standard location stator. I'm not surprised by the lack of verifiable responses that have "hard" facts/numbers to show a difference or benefits of a "set back" versus standard. I'd like to see some hard numbers myself.

 

[OCD Solutions]

Hard to put numbers on a "seat of the pants" feeling.

I have a Skat Setback Mag in my ski and a Solas Mag in my Wife's Superjet. The increased hookup from the Skat setback is great but I paid more to have my one year old Skat Mag pressed in to a new housing than what I paid for a brand new Solas Mag. In fact, I could buy 4 Solas mags for what I have in to my Skat and I doubt the Solas pump will ever split the housing....EVER! Figure out the Solas bearing clearance issue, (ONCE), and never look back.

 

[Superjetjim]

Not sure the setback does anything in reality.. Setting the intake tract and everything else back in the drive line then yes (I have a Mod B1 hull that features this and it makes a large difference in hook up) but just using a longer shaft with the same pump tract.. I don't think it makes a jot of difference. It's might offer hookup for a split second longer on take off if more CC of water in the pump - but surely it'll take longer to hook back up on landing whilst waiting for it to refill.

 

[wanderer1]

I guess where i'm at with a "set back" is back to back radar testing. How much longer (defined in time) is thrust provided, if any, after inlet leaves the water. Stuff like that. "Seat of the pants" could just be in your head after you spent all that dough and told yourself it was gonna be better. IDK, I have long been curious about it.

 

[OCD Solutions]

Hookup is a lot like power, you don't know how much you got till it's gone. I swapped from my Skat to an OEM for a couple rides last year and noticed a huge difference. I bet if I were to swap to a Solas though, I wouldn't notice a whole lot of difference. In fact, I bet it loosens my ski up and actually improves my ride.

 

[wanderer1]

So you are saying that for you and your setup a setback stator gives you improved hook up?

 

[OCD Solutions]

ScottS and I have the identical Matrix hulls, both with SS865's, B-pipes and Mag pumps. Mine has setback Skat and his is Solas Mag. His ski slides and mine hooks. Only thing left to swap and test is the pump.

 

[wanderer1]

Well there ya go OP, that's about as close a comparison we are gonna get I think. So this purported "longer thrust duration" after leaving the water isn't as prominent as we are led to believe it sounds to me. Thanks for the info

 

[scottie mac]

On a blaster, the set back does help a little with hook up, the skat is lighter and much more reliable. But, the solas is a deal......... if you can get it to not eat bearings.

SM

 

[Henry Stephen]

On a 155mm, that'll save some scratch.

 

[Proformance1]

I have ran, Solas, Skat non set back 144, set back 144, Maxx set back 148, and now H20 Torrent Set back 148. Mags definitely help in all situations, and with some time i have found that all are better in every aspect. That said the Set back concept will be impossible to prove IMO. at 800 psi the extra liter of water held equates to micro seconds of thrust capacity.