670 turbo

lilduke

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They work good, Post pics! The Rotary Valve design is way better for boost than Reed valves. IMO Turbo 670's are sweet. 200hp ish
 

overkill131313

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I remember I built a few turbo 670 in the ski-doo shop I worked in back in 97 but left in 98 and didn't know what life was on them.......I thought it was a great engine to add boost.......
 

fredw

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Had one for three years I will never forget, big boost and long pulls were not your Freind, and then came clutching... What a night mare...

There was three of us that buck lake bob sold us back then and it seamed to be a night mare for us all... But they did close to 190 hp when working good...
 

lilduke

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Ive seen Bob's Turbo kits in action back in the day, Blowing over Turbo Hill in Revy. I,ll say 2things tho 1- people have been turboing Carbed sleds along time now. Back in 97 it was pretty new. It's come a ways. 2 kinda have to be a gear head to keep the things running right IMO. If you don't like wrenching a carbed Turbo isn't for you. Ask Deano on here about his. He had real nice one for sale on here last year.
 

overkill131313

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how much was he selling it for? what is a nice turbo 670 worth? it is a ZX with everything powder coated......
Ive seen Bob's Turbo kits in action back in the day, Blowing over Turbo Hill in Revy. I,ll say 2things tho 1- people have been turboing Carbed sleds along time now. Back in 97 it was pretty new. It's come a ways. 2 kinda have to be a gear head to keep the things running right IMO. If you don't like wrenching a carbed Turbo isn't for you. Ask Deano on here about his. He had real nice one for sale on here last year.
 

lilduke

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Don't quote me but think around 8g?? Maybe it was only 5? don't really rember. He had converted in to fuel injection. Real nice sled.
 

lilduke

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I think good gas is key for any 2stroke turbo. Pump gas and 2stroke turbo's are bad new IMO even at low boost. Especially if you engine is stock.
 

DRD

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Keep the stock 670 so you still have something to ride when the turbo 670 "malfunctions".
Carbs and turbos on a 2stroke are a good way to spend money.
 

fredw

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Buddy in fortine mt runs a sled shop, I seen last year he had a old 670 turbo kit laying in a box, if your looking for another

i ran last year on pump fuel 600 miles and had no issues, and with out a intercooler...and ran very well, now that I have done some thinking, I feel I was lucky but also now know that it can be done and done safely
 
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