Turbo Options

[jasonphoto01]

I've been looking at a few different turbo options from various manufacturers. This would be my first machine with a turbo, and since I’ve got a serious need for speed, I’m trying to educate myself on what’s available and what to consider. I’ve noticed differences like larger vs. smaller turbos, placement near the muffler vs. between the motor and cab, and other variations. Can anyone share some insights into the pros and cons of these options or what I should be looking for? How does the turbo affect the life or maintenance of the motor? I’d appreciate the schooling!

 

[JTBarlow]

So far, Force Turbos and Aftermarket Assassins have turbo kits ready and available. Both hang the turbo off the back, and if you have the XP they can interfere with the bed dumping. With the ADV that’s not a problem. My brother had the Force Turbos setup on his General, and it worked great, despite not having a charge air cooler. Their Xpedition turbo kits do have a charge air cooler though.
There is someone on here that posted some of their setup with the Force Turbos that you can search for.

Pro EFI and Evo Performance are both working on turbo kits that mount directly onto a custom manifold, with Evo’s being in front of the engine and Pro EFI’s turbo being to the side of the engine. In my opinion, a turbo directly off the manifold is better overall.
I don’t know if Pro EFI has theirs in production yet and the last update I’ve seen from Evo said the first kits would start shipping mid December. Evo does already have a fairly large waitlist, so no idea how long it’ll take to get one.

With the Prostar II being a high compression engine, it’s not really designed to handle boost, so you can expect the possibility of maintenance and engine life issues. As far as I’m aware, all these kits only run 6-7 psi boost so I don’t think they’ll make the engine temperamental, but adding a turbo will push it beyond what it was engineered for.

All that said, my brother is on the waitlist for the Evo Turbo kit. Theirs looks the closest to what a factory turbo Xpedition would look like.

 

[Ryan]

I just watched the EVO video on FB. Looks awesome but the intercooler placement worries me a bit. It's shown right in front of the rear tire. A place mud loves to be. It makes me think, how good is an intercooler if it can't breath. I went back and looked at the AA turbo which hangs off the back. They have this quoted on the page; "We do NOT use an intercooler. The intercooler restriction vs. gain was a complete wash at the boost pressure you can run on this high compression motor. Through many data logs in different conditions, we found no reason to complicate things and run an intercooler."

 

[JTBarlow]

I just watched the EVO video on FB. Looks awesome but the intercooler placement worries me a bit. It's shown right in front of the rear tire. A place mud loves to be. It makes me think, how good is an intercooler if it can't breath. I went back and looked at the AA turbo which hangs off the back. They have this quoted on the page; "We do NOT use an intercooler. The intercooler restriction vs. gain was a complete wash at the boost pressure you can run on this high compression motor. Through many data logs in different conditions, we found no reason to complicate things and run an intercooler."

it’s definitely a valid concern, but on my Brother’s Xpedition, the HCR suspension puts the tires pretty much outside the body and very little mud actually gets into that area.

I’d also be curious about the others testing areas. EVO has been testing around Glamis and areas where ambient temperatures are typically higher, and an intercooler can definitely help, even at the lower boost pressure. I’d go out on a limb and assume that the majority of people who turbo their Xpeditions will be dune and desert riders.

 

[Ryan]

it’s definitely a valid concern, but on my Brother’s Xpedition, the HCR suspension puts the tires pretty much outside the body and very little mud actually gets into that area.

I’d also be curious about the others testing areas. EVO has been testing around Glamis and areas where ambient temperatures are typically higher, and an intercooler can definitely help, even at the lower boost pressure. I’d go out on a limb and assume that the majority of people who turbo their Xpeditions will be dune and desert riders.

No dunes here, I'm a east coast baby.. I spoke to a guy at EVO, didnt catch his name.. He was cool, answered all the questions he could but said several of the options I discussed (like stages (AA offering), intercooler w/o options) would be figured out after they finish testing and start shipping the units.

 

[vexed]

How did the EVO work for you? I'm trying to decide between the EVO & ProEFI - on a build that is predominately used as a luxury snow plow.

 

[vince.clemens]

I've been looking at a few different turbo options from various manufacturers. This would be my first machine with a turbo, and since I’ve got a serious need for speed, I’m trying to educate myself on what’s available and what to consider. I’ve noticed differences like larger vs. smaller turbos, placement near the muffler vs. between the motor and cab, and other variations. Can anyone share some insights into the pros and cons of these options or what I should be looking for? How does the turbo affect the life or maintenance of the motor? I’d appreciate the schooling!

I have pro Efi on mine along with flex fuel it’s by far the best out there. He’s already done a couple dozen

 

[vince.clemens]

How did the EVO work for you? I'm trying to decide between the EVO & ProEFI - on a build that is predominately used as a luxury snow plow.

Talk to Shawn at ProEFI, even go down there it’s impressive

 

[vexed]

I have pro Efi on mine along with flex fuel it’s by far the best out there. He’s already done a couple dozen

Adequate even without the intercooler for heavy towing?

 

[JTBarlow]

The Evo turbo kit was originally supposed to ship in December, but they had some component delays. We’re supposed to be getting ours within the next week or so, but we’re also waiting on a new Xpedition that it’ll be going on. I’m estimating 2 weeks to have ours up and running… but we’ll see.

 

[jasonphoto01]

It looks like the turbo sits at different places, depending on the kit. Does the location of the turbo make a difference?

 

[vince.clemens]

Adequate even without the intercooler for heavy towing?

So Sean‘s kits have many options flex fuel, which is very nice, inter cooler, also remote mapping .
The way my car is set up with 35s if I got into the sand, barely could pull itself through it, but after I put the turbo on, it has no problem so I think it would be good for your application

It looks like the turbo sits at different places, depending on the kit. Does the location of the turbo make a difference?

 

[vince.clemens]

So Sean‘s kits have many options flex fuel, which is very nice, inter cooler, also remote mapping .
The way my car is set up with 35s if I got into the sand, barely could pull itself through it, but after I put the turbo on, it has no problem so I think it would be good for your application

Yes, the General rule with turbo is the closest to the intake. The batter Sean’s is right off the intake.

 

[vince.clemens]

It looks like the turbo sits at different places, depending on the kit. Does the location of the turbo make a difference?

Closer to the intake the better

 

[jasonphoto01]

Closer to the intake the better

Isn't the EVO closer vs the ProEFI?

 

[jasonphoto01]

I'm new to turbos so trying to wrap my head around the different options and their differences. Am I missing anything here that should be considered?

EVO Powersports Turbo Kit​

Pros: Proven Plug-and-Play Performance – Designed specifically for Polaris platforms, making installation and tuning easier.
Closer Turbo Placement – Shorter charge piping means better throttle response and reduced lag.
Integrated Tuning Solution – Uses Dynojet or EVO’s proprietary tuning, so you don’t need a standalone ECU.
More Affordable – Typically costs less than a fully customized ProEFI setup.
Factory-Like Integration – Keeps stock sensors and ECU functions intact.
Better for Reliability – EVO tunes tend to be more conservative, preserving engine longevity.

Cons:
Less Tuning Flexibility – You’re limited to EVO’s pre-set maps or Dynojet adjustments.
Lower Power Ceiling – EVO kits are optimized for reliability, so extreme power gains require extra mods.
Less Customization – You can’t easily tweak boost levels, fuel maps, or timing beyond what the tune allows.

---

ProEFI Turbo Kit​

Pros:
Standalone ECU for Full Control – Allows for custom fuel tuning, boost adjustments, and advanced ignition control.
Higher Power Potential – Supports larger turbo options, flex fuel (E85), and more aggressive tuning.
More Precise Engine Management – ProEFI systems include advanced safety features like knock control, boost-by-gear, and traction tuning.
Better for Custom Builds – If you want big power (200+ HP) or a race-oriented setup, ProEFI is the way to go.

Cons:
More Expensive – ProEFI kits typically cost more, especially when factoring in ECU tuning, sensors, and custom work.
Longer Installation & Tuning Time – Requires custom wiring, calibration, and dyno tuning to optimize the setup.
More Complex System – Standalone ECUs demand more knowledge and effort to maintain and troubleshoot.
Turbo Placement Can Be Further from Intake – Depending on the setup, charge piping can be longer, which may introduce more lag.

---

Which One is Better for You?​

• If you want a simple, reliable, plug-and-play turbo that works well for trail riding, rock crawling, and occasional high-speed runs, go with EVO Powersports.
• If you're looking for maximum horsepower, custom tuning control, and high-performance racing applications, ProEFI is the better choice.

Final Thought: EVO is great if you want a well-integrated and lower-maintenance setup, while ProEFI is ideal for those willing to invest in a fully customizable, high-performance build.

 

[vince.clemens]

Isn't the EVO closer vs the ProEFI?

Not sure but if I had to do it all over again I would put far away do to that heat it creates

 

[vince.clemens]

I'm new to turbos so trying to wrap my head around the different options and their differences. Am I missing anything here that should be considered?

EVO Powersports Turbo Kit​

Pros: Proven Plug-and-Play Performance – Designed specifically for Polaris platforms, making installation and tuning easier.
Closer Turbo Placement – Shorter charge piping means better throttle response and reduced lag.
Integrated Tuning Solution – Uses Dynojet or EVO’s proprietary tuning, so you don’t need a standalone ECU.
More Affordable – Typically costs less than a fully customized ProEFI setup.
Factory-Like Integration – Keeps stock sensors and ECU functions intact.
Better for Reliability – EVO tunes tend to be more conservative, preserving engine longevity.

Cons:
Less Tuning Flexibility – You’re limited to EVO’s pre-set maps or Dynojet adjustments.
Lower Power Ceiling – EVO kits are optimized for reliability, so extreme power gains require extra mods.
Less Customization – You can’t easily tweak boost levels, fuel maps, or timing beyond what the tune allows.

---

ProEFI Turbo Kit​

Pros:
Standalone ECU for Full Control – Allows for custom fuel tuning, boost adjustments, and advanced ignition control.
Higher Power Potential – Supports larger turbo options, flex fuel (E85), and more aggressive tuning.
More Precise Engine Management – ProEFI systems include advanced safety features like knock control, boost-by-gear, and traction tuning.
Better for Custom Builds – If you want big power (200+ HP) or a race-oriented setup, ProEFI is the way to go.

Cons:
More Expensive – ProEFI kits typically cost more, especially when factoring in ECU tuning, sensors, and custom work.
Longer Installation & Tuning Time – Requires custom wiring, calibration, and dyno tuning to optimize the setup.
More Complex System – Standalone ECUs demand more knowledge and effort to maintain and troubleshoot.
Turbo Placement Can Be Further from Intake – Depending on the setup, charge piping can be longer, which may introduce more lag.

---

Which One is Better for You?​

• If you want a simple, reliable, plug-and-play turbo that works well for trail riding, rock crawling, and occasional high-speed runs, go with EVO Powersports.
• If you're looking for maximum horsepower, custom tuning control, and high-performance racing applications, ProEFI is the better choice.

Final Thought: EVO is great if you want a well-integrated and lower-maintenance setup, while ProEFI is ideal for those willing to invest in a fully customizable, high-performance build.

I would agree with this if Evo even had a kit to buy. All these kits are still going through testing

 

[vince.clemens]

So far, Force Turbos and Aftermarket Assassins have turbo kits ready and available. Both hang the turbo off the back, and if you have the XP they can interfere with the bed dumping. With the ADV that’s not a problem. My brother had the Force Turbos setup on his General, and it worked great, despite not having a charge air cooler. Their Xpedition turbo kits do have a charge air cooler though.
There is someone on here that posted some of their setup with the Force Turbos that you can search for.

Pro EFI and Evo Performance are both working on turbo kits that mount directly onto a custom manifold, with Evo’s being in front of the engine and Pro EFI’s turbo being to the side of the engine. In my opinion, a turbo directly off the manifold is better overall.
I don’t know if Pro EFI has theirs in production yet and the last update I’ve seen from Evo said the first kits would start shipping mid December. Evo does already have a fairly large waitlist, so no idea how long it’ll take to get one.

With the Prostar II being a high compression engine, it’s not really designed to handle boost, so you can expect the possibility of maintenance and engine life issues. As far as I’m aware, all these kits only run 6-7 psi boost so I don’t think they’ll make the engine temperamental, but adding a turbo will push it beyond what it was engineered for.

All that said, my brother is on the waitlist for the Evo Turbo kit. Theirs looks the closest to what a factory turbo Xpedition would look like.

Pro Efi has done a couple dozen at this point

 

[JTBarlow]

For us, reliability is key. The Xpedition has always felt like it had more to give, but ultimately, it’s a daily driver. I really don’t see anyone building an Xpedition for real racing. The frame alone is too heavy, and the transmission is too low geared. Unless they do an Xpedition class race.