Hi
A freind purchased a 2004 Polaris Frontier last season, really wanted to go four stroke, found the sled to be like new, M10 suspension, only problem its a slug! He really like everything about the sled except it's top end there is none!
Does anyone know if there's a complete Turbo kit available? figured with over 700cc, if it had a turbo it would become a pretty quick machine.
All suggestions are welcome
Thanks in advance
Jay
Full Version: Polaris 4-Stroke Frontier
Turbo kit will cost more then it would to replace the sled with a used FST. I rode one last year , more power then I expected and it comes on smooth. I think is basicly the same motor except the one your talking about is like 50 hp and the FST is 140 hp!
QUOTE(xc-mark @ Nov 17 2006, 09:05 PM) 
Turbo kit will cost more then it would to replace the sled with a used FST. I rode one last year , more power then I expected and it comes on smooth. I think is basicly the same motor except the one your talking about is like 50 hp and the FST is 140 hp!
The motor is completely different, between a Frontier and an 06-07 FS or FST.
A turbo kit should not really cost that much. If you can part it together yourself, you'd be doing good. Just look for a wrecked 660 cat or something, then fab up or get someone to fab up a adaptor plate for the manifold.
Else is history. Is the sled efi or carb? IF its efi, only thing extra to think of is a missing link clamp. Basically just fools the MAP sensor to thinking its not under any boost.
Intercoolers can be found quite small. I have a friend who had one from his Skyline, yes its a car, but the size of it would be perfect. Its roughly 8" by 8" and 2 deep.
Anything is possible, if a turbo setup can be made for 2 grand on a car, a smaller motor should be in the same ball park I would think.
2c
Else is history. Is the sled efi or carb? IF its efi, only thing extra to think of is a missing link clamp. Basically just fools the MAP sensor to thinking its not under any boost.
Intercoolers can be found quite small. I have a friend who had one from his Skyline, yes its a car, but the size of it would be perfect. Its roughly 8" by 8" and 2 deep.
Anything is possible, if a turbo setup can be made for 2 grand on a car, a smaller motor should be in the same ball park I would think.
2c
QUOTE(Breakin_Bread @ Nov 18 2006, 05:57 PM)
A turbo kit should not really cost that much. If you can part it together yourself, you'd be doing good. Just look for a wrecked 660 cat or something, then fab up or get someone to fab up a adaptor plate for the manifold.
Else is history. Is the sled efi or carb? IF its efi, only thing extra to think of is a missing link clamp. Basically just fools the MAP sensor to thinking its not under any boost.
Intercoolers can be found quite small. I have a friend who had one from his Skyline, yes its a car, but the size of it would be perfect. Its roughly 8" by 8" and 2 deep.
Anything is possible, if a turbo setup can be made for 2 grand on a car, a smaller motor should be in the same ball park I would think.
2c
Else is history. Is the sled efi or carb? IF its efi, only thing extra to think of is a missing link clamp. Basically just fools the MAP sensor to thinking its not under any boost.
Intercoolers can be found quite small. I have a friend who had one from his Skyline, yes its a car, but the size of it would be perfect. Its roughly 8" by 8" and 2 deep.
Anything is possible, if a turbo setup can be made for 2 grand on a car, a smaller motor should be in the same ball park I would think.
2c
And what causes the EFI system to give extra fuel to accompany the boosted air pressure and increased oxygen?
Thats a good question.
Maybe sleds run differently, but with the recent dodge neon that I turbo'd, all we did was add bigger injectors to compensate, that pcm handles the rest. It was still on the stock pcm and ran great with 6-7 psi of boost. Dyno'd 231whp, up from 130 stock.
But for the question, the extra fuel is added by the injectors, and if your good with tuning software, you can play all day long with fuel curves and timing.(i.e. Megasquirt) Thats where the grunt of the power comes from.
Maybe sleds run differently, but with the recent dodge neon that I turbo'd, all we did was add bigger injectors to compensate, that pcm handles the rest. It was still on the stock pcm and ran great with 6-7 psi of boost. Dyno'd 231whp, up from 130 stock.
But for the question, the extra fuel is added by the injectors, and if your good with tuning software, you can play all day long with fuel curves and timing.(i.e. Megasquirt) Thats where the grunt of the power comes from.
I changed the gearing in my Frontier this year. Went from a 17/40 gear setup to a 20/40. I do not have snow yet to try it out. My frontier has a fair ammount of power off the line then runs out of power quick at about 55 mph. My local polaris dealer said that the gear change I did is a polular upgrade and should give me a topend near 80 mph now. The gear change was simple and cheap. $10 gear off of ebay. Maybe 1 hr to change. The stock chain was long enough. So filled back up with Lube and I am waiting for the snow!! I will let you know how this mod works out. I don't know the style of riding you do but 80 mph should be good for the mix of trail and farm field riding I do. I am also very happy with my Frontier Classic,but do agree that more topend is necessary. Hopefuly this gear change will give me what I need.
NOS :div20:
Reliable, cheap and easy to install.
Good for the occasional speed bursts or hill climb but if he wants to run the lake fast all day the NOS runs dry quickly.
Reliable, cheap and easy to install.
Good for the occasional speed bursts or hill climb but if he wants to run the lake fast all day the NOS runs dry quickly.
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