turboetech
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Running at 7 psi you will get a good look at the internals of this engine let alone 10 psi Caper is right intercooler and clutching would be an issue totally unreliable and have a helicopter on speed dial
Silbers 850 turbo kit could be the answer..
- Thread starter fredw
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skegpro
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That aside, can it be done?
I am not used to seeing such a wide operating range.
How do they do it?
Just a spring change?
Do you have to change injectors?
kanedog
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Have the go pro on at all times. Post vid if she lets go.
maxwell
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add an intercooler and i dont see why 10lbs isnt acheivable. run that all day long on my XM
Bnorth
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Sno-x rods? which pistons?
maxwell
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LOL stock rods so far so good. wossner pistons.
Bnorth
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When your peepee tingles at 10psi is it cause you're hauling the mail or waiting for a rod to chainsaw the case?
mountainsledmania
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maxwell
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thats fine. when she goes she goes. build it stronger when the time comes. i dont get to the hill until noon so i guess i should have said all afternoon long LOL
skegpro
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What's your next turbo kit max?
maxwell
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i would like a silber for an 850 as an every day machine. i feel they are the leaders in the bolt on low boost category right now. But i like to push it to the max and silber just cant do that. inst capable of that much boost or the adjust ability i need with the components it comes with. Redline is the closest thing to what i would like for a high HP 850
skegpro
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I am curious how these redline pump gas kits with the new controllers compare to a sliber.
I also wonder what the cost on the redline extreme output kit would be without all the extras.
skegpro
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Reading up on these kits what's the reasoning with the massive external BOV?
turboetech
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And how many times have you seen the internals running 10 psi boost...... is this the same sled that sat in allen creek for a week?
skegpro
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There is an old m chassis cat with a Boondocker kit sitting in my buddies garage that ran at 12 psi it's whole life.
5800km on it, original engine.
turboetech
Active VIP Member
On pump gas too I bet
skegpro
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50%pump/50%race
Come out and see it if yeah want.
Those old zuks were good engines minus the fact they didn't make any power till 7000rpm.
oler1234
Active VIP Member
..... build your own. I know that’s what I did and couldn’t be happier. Someone with advanced skills of tuning can easily do this and with mild fabrication skill set.
The the reason for the massive blow off valve is to minimize turbo surge or flutter as well it sounds cool for those that don’t know.
maxwell
Active VIP Member
get your facts straight it was on the hill for a month LOL. melted a piston in the first 15km. had my fuel settings sooooo wrong. put it back together and have 1500km at 10lbs.
its my mod race sled. so i honestly dont put a ton of miles on it for fun. but come race season it gets some HARD miles.
before race season last year i took it up allan creek and tried very very hard to blow it up to make sure it could handle it come race time
turboetech
Active VIP Member
Right on maxwell thanks for the correction thot it was mountain sitting for a bit....turned my 850 up to 7 psi for a few pulls but set back to 5 psi for reliability 600kms and has not missed a beat with same belt too...lol
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