SLP stage 3 kit questions

[OnlyPolaris]

I am looking at running the slp pipe on my 2012 pro rmk. Then I got thinking about doing a stage 3 kit. But I see they have different kits for different elevations. At home we ride around 2000 ft elevation. Out west we ride up to 8000 ft. Is it possible to run one of these kits for this wide elevation?

 

[IQRIDR]

The differences are in the clutching and the compression of the head. The weights are adjustable so you would just need different compression domes and you would be set. They may have a different PC5 map for different elevations as well.

The compression of the head is not a must-change, however the clutching will be with that much of an elevation change. You will need a tighter secondary spring and probably 4 grams less weight for that altitude gain. You will be sacrificing a little with the sea-level domes around 8k but..just a little. It will still run just fine.

I'm sure Dustin with SLP will chime in as well. The only other variable here is whether they adjust the port timing per elevation which is a definite possibility given SLP's history of thorough research and execution with these types of kits. This will also possibly be an area where you sacrifice a bit of performance.

 

[OnlyPolaris]

ya thats my biggest worry is the different heads. Its easy enough to switch weights. I may just do the full exhaust with there recommended setup.

 

[AndrettiDog]

You don't want to run the head for higher elevation at a lower elevation. Even with race fuel I think it is too sketchy. Either buy two heads or use the stock head at lower elevation.

I could have swore that I saw on the SLP site that race fuel is required for the stage 3 kit, but when I went back there now I don't see that anymore.

 

[freak485]

You don't want to run the head for higher elevation at a lower elevation. Even with race fuel I think it is too sketchy. Either buy two heads or use the stock head at lower elevation.

I could have swore that I saw on the SLP site that race fuel is required for the stage 3 kit, but when I went back there now I don't see that anymore.

I don't think it ever did, i have been thinking about this kit and would have never even considered it, if it required race fuel

 

[IQRIDR]

You don't want to run the head for higher elevation at a lower elevation. Even with race fuel I think it is too sketchy. Either buy two heads or use the stock head at lower elevation.

I could have swore that I saw on the SLP site that race fuel is required for the stage 3 kit, but when I went back there now I don't see that anymore.

I was insinuating that he could use the sea-level domes at high altitude with a small power sacrifice. Not the other way around. And, he could just buy 2 sets of domes and 1 head.

The stage 3 set up was always intended to be a pump gas set up.

 

[AndrettiDog]

I don't think it ever did, i have been thinking about this kit and would have never even considered it, if it required race fuel

Ok, I found it. Look at this PDF. It is the install sheet for the stage III kit. Look at the graph for the elevation/dome settings on page 2. It specifies using 108 race fuel for 5,000+. There are two 5,000+ part numbers so one must be higher compression.

SLP Stage III Install Instructions

 

[B2]

You're right. If you look at their Power Dome heads, they have three sets available - 0-5,000' with a CR of 12.2/1, 5,000+ with CR of 12.6/1, and 5,000 + race fuel blend at 13.2/1.

Ok, I found it. Look at this PDF. It is the install sheet for the stage III kit. Look at the graph for the elevation/dome settings on page 2. It specifies using 108 race fuel for 5,000+. There are two 5,000+ part numbers so one must be higher compression.

SLP Stage III Install Instructions

 

[OnlyPolaris]

I don't want to have to hassle of having to switch heads and domes. I switch evelations to much and it would just become inconvenient. I think I will end up just doing the full pipe, recomended clucthing, intake, controller and reeds.

 

[IQRIDR]

Right, I hear you, but you could do the sea level domes and run them all the time, and still get SOME power gains, and the added cooling capacity of an aftermarket head. just my .02