Anyone running an Turbo on '12 800cc @ Sea Level?

Mr. Pump Gas · Mar 12, 2012

What system, what boost levels? Pump Gas? Any issues, how is reliability? Are they finicky/inconsistent? What fuel system? I would like pump gas 8-10lbs if possible. Remember key words Sea Level, any guys have some real world run time? Email or PM me. shaynee@natchoice.net

Thanks Shayne

ak · Mar 12, 2012

Been around two at sea level one was silber on 800 pro he's running straight race fuel at 10 lbs. Av gas would probably work at 7 lb.

Pump gas and 10 lbs probably won't work unless you lower the compression.

Skeld · Mar 12, 2012

What kind of HP can you make reliably at sea level with a turbo? Without other engine modifications?

theultrarider · Mar 13, 2012

7lbs on 100ll avgas is about the end of what you can run. The guys are guessing about 180hp running like that. Any more boost and you are running race gas=$$$$ Avgas isn't bad. About the same as pump premium if you buy it from the bulk plants and not the airport. I wouldn't try running a turbo on 91 at sealevel at all. Boost would have to be so low you might as well go with rkt's 858 kit instead.

powerfuldodge · Mar 13, 2012

I run between 700-1200ft with a silber turbo running 4.5PSI any more than that my drivers are jumping the track....I'm running a Silber kit 80% 91 octane and about 20% 110 octane...I only put 670 miles on the sled this winter no real issues...One thing that I don't like is when i'm running between 50-65MPH my A/F is around 16-17 a little lean..But once I start building boost around 70MPH my A/F drops down to 12.2....Thats my only concern. All my riding in on the river , power lines and cut lines and i'm still getting 100miles out of a tank..My goal once I get a new track 1 3/4" and exevert drivers installed I will run 6PSI....

Skeld · Mar 13, 2012

powerfuldodge said:
I run between 700-1200ft with a silber turbo running 4.5PSI any more than that my drivers are jumping the track....I'm running a Silber kit 80% 91 octane and about 20% 110 octane...I only put 670 miles on the sled this winter no real issues...One thing that I don't like is when i'm running between 50-65MPH my A/F is around 16-17 a little lean..But once I start building boost around 70MPH my A/F drops down to 12.2....Thats my only concern. All my riding in on the river , power lines and cut lines and i'm still getting 100miles out of a tank..My goal once I get a new track 1 3/4" and exevert drivers installed I will run 6PSI....

Interesting, what are you going to run for a 1 3/4" track and drivers?

powerfuldodge · Mar 13, 2012

Skeld said:
Interesting, what are you going to run for a 1 3/4" track and drivers?

I have a back country 136 x 1 3/4" but its not a real aggressive lug its more of a paddle. But was also looking at the Ripsaw 1.5 which has a aggressive lug..So not sure which one i'm going to go with I have the back country already..But like the lug pattern of the rip saw...For drivers I have Avid anti ratchet....I have changed out a track on this chassic yet ,so just wait for the season to end , which is within the next week or so...

Skeld · Mar 13, 2012

Ah I see you have the 144". I asked because I haven't found anything like a 1.75" for my 155". Kind of an odd request that would be why. But for here the added floatation of the 155" plus a little bit smaller lug for better crusing speed on lakes and such, as well as causing less hyfax trouble, would be a good thing. The Cain's Quest guys usually only run 1.5" tracks and studs for the ice. The riding I do is similar.

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Anyone running an Turbo on '12 800cc @ Sea Level?

Mr. Pump Gas

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ak

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Skeld

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theultrarider

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powerfuldodge

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Skeld

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powerfuldodge

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Skeld

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