SXR Impeller question

[Rushford_Ripper]

Looking for options on impeller for my setup.

2008 sxr 800 - factory wetpipe, aftermarket F/As, TBM intake grate, stock rideplate

Riding Lake Erie, we have flat water and surf depending on the day. Looking for opinions on which impeller to run. I believe what is in there is stock and I am wondering if this is what I should leave in it or upgrade to a stainless with same pitch? Different pitch?

 

[MTRHEAD]

OEM is good - can be made better by thinning and taking about 1 degree off top
13/21 Dynafly is a little better
10/18 Skat C75 is alright too

 

[Big Kahuna]

I preferred the Dynafly tweaked by IMPROS. But I raced a season with a modded Stock that IMPROS worked on like MTRHEAD said. Thinned and repitched. The Dynafly pulled a little better in the mid and top that the stocker did.

 

[MTRHEAD]

Agree - Dynaflys and Concords out pull Skat and OEM props in mid to top for sure

 

[Rushford_Ripper]

So if I want a good all around, probably stick with the stock is what I am gathering for low-mid-top range

 

[Big Kahuna]

Repitched, cut back, blades Thinned........... Send it to Dave at IMPROS

 

[Rushford_Ripper]

Ok thanks

 

[MTRHEAD]

I rode the sxr from 03-09 and the difference from the stock prop to dynafly was insignificant. the biggest improvement in bottom end came from putting a PJS ripturn nozzle on it. I don't remember what the exit size was but it was much bigger than the stock 76mm. even the 80mm off the old 750sx is better but bigger is better on the sxr nozzle.

Agree to a point. I built an all out stock spec SXR and the best prop was a 13/21 dynafly. the Dynafly was best on the gun and gun acceleration. I had three different oem thinned props of different bends. However I agree the difference is minima and just riding around the stock prop has a very linear feel. Remember this is spec build with a STS vane nozzle and a stuffer.

 

[Rushford_Ripper]

Would you recommend adding a pump cone instead of impeller change?

 

[Rushford_Ripper]

Changed out my intake grate today and realized the ski has an aftermarket impeller of some kind, not too sure what it is but has a swirl hub to it.

 

[Big Kahuna]

The OEM prop looks like a slat swirl without the machined finish.

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[Rushford_Ripper]

No it has a machine finish

 

[Big Kahuna]

Then it is either been modified by IMPROS or someobody else, or it is a skat. Pull the pump and pop the prop off. Easy job.

 

[Rushford_Ripper]

I actually went riding yesterday and with the new TBM intake grate, I am very happy with how the setup is currently.

 

[Big Kahuna]

Thats all that matters!

 

[Rushford_Ripper]

Finally figured out what impeller was in there, Skat 14-19 swirl. Pulled it apart to change out the pump since the veins were in real rough shape.

 

[kotarbi]

Finally figured out what impeller was in there, Skat 14-19 swirl. Pulled it apart to change out the pump since the veins were in real rough shape.

I ran a 80mm exit nozzle with that impeller with good results

 

[Rushford_Ripper]

I believe it has the stock 76mm? nozzle but I did add a wet wolf pump cone, waiting until spring to see results