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For a adjustable box. + and - fueling... Boondocker all the way
Have you looked at boost it?? They have those polaris's dialed. Personally I wouldn't run any other controller. Jmo.
Not sure what injectors silber uses. But they should.
Robert, I have done numerous turbo kit combos over the past six years. I'll just give you my findings from my past experience and you decide if any of it brings value or what's best for you, okay.
The system you intend or may have already purchased does have 4 injectors. Two of them are factory and the other 2 are used with a billet intake manifold that fits between your throttle bodies and upper case half intake. I tried at first using 2 separate Dobeck boxes. First one used a blue vacuum line and solenoid to read boost/vacuum. Freezing would occur within that line and the machine would run extremely rich. Second Dobeck box on the same kit was installed using a Bosch 3 bar sensor to electronically read vacuum/boost. This worked much better but still not user friendly do to constantly changing air temperatures required adjustment to the boxes.
After a winter of constantly tinkering with the Dobek to keep it from going lean to rich or vise-a-versa. I was lucky enough you locate a new boost-it fuel controller for $1250. Yep not cheap. The Boost-it box took some altering to adapt to your same kit but worked night and day over the Dobeck. Only thing was it still required adjustments in order to keep a well tuned machine throughout the season. If you don't have a good understanding of which value represents what, you'd better not change anything or you have a turbo with the flu.
I had finally reach that point of do I really want to continue down this path or move on towards something else, such as a big bore. I knew the power and fun of these machines when there on there a game is unmatchable any other way but I was still fed-up with throwing money at it.
I eventually spoke with Boston Racing and Justin Silber about my situation and point I had reached. They told me about the new reflash that was put together for these kits. Oh course I was like yah yah yah it's just another way for these turbo manufacturers to get more money. (Mind you this was when the huge hype about Vipec was coming around.) They ended up telling me the names of some guys out west that had done it and recommended I look them up for there opinions. Now that worked in my favor because 2 of them in knew very well so I was able to actually try before you buy situation.
So after getting the chance to spend a weekend out on the new ECU reflash turbo system my opinions began to change. The throttle response was much crisper, transitions from open to closed and back open throttle where very responsive and never hit a lean or DET mode. The entire weekend of riding from 3,000 ft -7,800 ft didn't effect the machine nor require tuning adjustment because the ECU computer is doing all the adjustments for you.
To sum this all up, I ended up going with the reflash system and rode that winter very pleased for the first time ever on a turbo sled. It does require you to remove the 2 extra injectors and install new larger injectors in the OEM location which then your ECU controls. You'll also need to install a 3 bar map sensor which your system probably doesn't have yet. You will also need to change the fuel line routing of the older system to accommodate using only 2 injectors instead of 4.
This past year I sold my older kit and purchased the new external waste gate system with reflashed ECU. All I can say is FUN FUN FUN!!! This kit has worked awesome for my kind of tree riding in Western Montana and has flat out ripped every time out.
I hope you can make a better decision or direction you'll take from this and wish you the best on your quest for more....
Robert, I have done numerous turbo kit combos over the past six years. I'll just give you my findings from my past experience and you decide if any of it brings value or what's best for you, okay.
The system you intend or may have already purchased does have 4 injectors. Two of them are factory and the other 2 are used with a billet intake manifold that fits between your throttle bodies and upper case half intake. I tried at first using 2 separate Dobeck boxes. First one used a blue vacuum line and solenoid to read boost/vacuum. Freezing would occur within that line and the machine would run extremely rich. Second Dobeck box on the same kit was installed using a Bosch 3 bar sensor to electronically read vacuum/boost. This worked much better but still not user friendly do to constantly changing air temperatures required adjustment to the boxes.
After a winter of constantly tinkering with the Dobek to keep it from going lean to rich or vise-a-versa. I was lucky enough you locate a new boost-it fuel controller for $1250. Yep not cheap. The Boost-it box took some altering to adapt to your same kit but worked night and day over the Dobeck. Only thing was it still required adjustments in order to keep a well tuned machine throughout the season. If you don't have a good understanding of which value represents what, you'd better not change anything or you have a turbo with the flu.
I had finally reach that point of do I really want to continue down this path or move on towards something else, such as a big bore. I knew the power and fun of these machines when there on there a game is unmatchable any other way but I was still fed-up with throwing money at it.
I eventually spoke with Boston Racing and Justin Silber about my situation and point I had reached. They told me about the new reflash that was put together for these kits. Oh course I was like yah yah yah it's just another way for these turbo manufacturers to get more money. (Mind you this was when the huge hype about Vipec was coming around.) They ended up telling me the names of some guys out west that had done it and recommended I look them up for there opinions. Now that worked in my favor because 2 of them in knew very well so I was able to actually try before you buy situation.
So after getting the chance to spend a weekend out on the new ECU reflash turbo system my opinions began to change. The throttle response was much crisper, transitions from open to closed and back open throttle where very responsive and never hit a lean or DET mode. The entire weekend of riding from 3,000 ft -7,800 ft didn't effect the machine nor require tuning adjustment because the ECU computer is doing all the adjustments for you.
To sum this all up, I ended up going with the reflash system and rode that winter very pleased for the first time ever on a turbo sled. It does require you to remove the 2 extra injectors and install new larger injectors in the OEM location which then your ECU controls. You'll also need to install a 3 bar map sensor which your system probably doesn't have yet. You will also need to change the fuel line routing of the older system to accommodate using only 2 injectors instead of 4.
This past year I sold my older kit and purchased the new external waste gate system with reflashed ECU. All I can say is FUN FUN FUN!!! This kit has worked awesome for my kind of tree riding in Western Montana and has flat out ripped every time out.
I hope you can make a better decision or direction you'll take from this and wish you the best on your quest for more....
Roger that.
Mtntk similar to silver does a reflash of the ecu so there's literally nothing to adjust. Ran that last year and loved every minute, truly a gas n go. There are differences between the 2 systems, but as far as fuel control goes they're essentially the same. The biggest improvements have been in the electronics from what I've seen. Controlling fuel delivery has made these almost idiot proof.
Boondocker box should work for ya. Used them in the past without any problems on big bores. Understanding what the settings did was the hardest part. Once you have that foundational knowledge it's just testing and pushing buttons to dial it in. Boondockers probably has some baseline numbers they could throw at ya too to get you started.
Robert, the injectors from that year kit and the Boondocker box ARE different. You have 2 options to resolve the issue. First is purchase a set of injectors from Boondocker to install or second option is to cut the ends off the old wiring harness that came with it and splice them onto your new fuel controller.
This will not be a plug and play purchase for your system.
Unfortunately I just sold a Boost-it box for your system 2 months ago to a guy in Canada.
Well i was trying to talk to silber but once they realized I didnt plan on buying a brand new kit from them they pretty much stopped communicating with me, anyways I called boondocker and they were more then helpful, ill be buying a boondocker box and splicing into the current box from the kit to make it run those injectors, then starting my tuning from a base map from boondocker and working from that....