Viper Gas mileage with Turbo

[Yamacat21]

Both my wife and I traded our 800etecs for vipers.. we have noticed a lot more fuel consumption since we went 4 stroke. This is just trail riding.

At least they won't need a complete overhaul at 3000 miles like the etec. Lol

 

[butches]

2015 xtx se with mpi 180 turbo 1,785 miles all put on this year i am at a consistent 10.0 mpg

 

[Yamadog]

2015 xtx se with mpi 180 turbo 1,785 miles all put on this year i am at a consistent 10.0 mpg

I am just a hair over that on my 15 running hard at 7#'s of boost my 14 would not brake 9

 

[yamahaguy]

Our average days riding consist of 6-7 hours of off trail and putting on about 35 miles. During that time will use about 5-6 gallons of gas. Terrible mileage! Good thing I didn't buy this sled for fuel economy. I love this sled
The 2 smoke riding buddies always use more gas with the same riding.

 

[Kenzie]

Power level an gems settings or certain tunes will affect this hugely so hard to compare

 

[Kenzie]

I ride with a hurricane kit 190 guy an he kills my mpi 180 at the pumps $5-$8 cheaper

 

[Sleepingkitty]

So this guy is faster yet gets better fuel miliage?

 

[Dirtbikekid1998]

I get about 14-15 on my hurricane 190 kit just trail riding and that's what I got last year all stock so the kit didn't effect my mpg. If I do any top speed runs or play around in drifts it drops to 10-11. But I only have 600 miles on the kit so it kinda hard to tell.

My dads 2015 stx dx with mpi 180 got about 15mpg last year but that is just cruising on really nice trails.

Sent from my iPhone using Tapatalk

 

[Mike P]

I didn't put a turbo on my sled to improve MPG performance. I only run 5psi boost and run hard most of the time. The main reason for upgrading to more horse power was to maintain higher trail speeds. I run with Apexes most of the time and a viper, new out of the box is fine 0 to 85 MPH but hits a wall at about 85. Considering the fact that trail conditions and sled set up as well as other factors do contribute to your ability to keep pace with a group of riders who are running more power on the top end than my STX SE was designed and manufactured with, I decided to upgrade.
I currently use 25% more fuel than a stock 2014 Apex XTX 144. This percentage was averaged over a 800 mile 3 day ride in northern Maine. The Apex was lead and I was keeping pace, very little off trail mostly rail beds and hilly trails.
I currently use 15% more fuel than a stock 2016 Viper LTX SE 137. I am trying to fine a way to get better fuel economy with out risking motor damage by leaning her out. I have almost 2k miles on the turbo with out any issues, MPI with Hurricane costume clutch. Studs down the middle with tunners up front gears were changed. Love this sled. Wish the MPG were a little better but..........

 

[Sleepingkitty]

I didn't put a turbo on my sled to improve MPG performance. I only run 5psi boost and run hard most of the time. The main reason for upgrading to more horse power was to maintain higher trail speeds. I run with Apexes most of the time and a viper, new out of the box is fine 0 to 85 MPH but hits a wall at about 85. Considering the fact that trail conditions and sled set up as well as other factors do contribute to your ability to keep pace with a group of riders who are running more power on the top end than my STX SE was designed and manufactured with, I decided to upgrade.
I currently use 25% more fuel than a stock 2014 Apex XTX 144. This percentage was averaged over a 800 mile 3 day ride in northern Maine. The Apex was lead and I was keeping pace, very little off trail mostly rail beds and hilly trails.
I currently use 15% more fuel than a stock 2016 Viper LTX SE 137. I am trying to fine a way to get better fuel economy with out risking motor damage by leaning her out. I have almost 2k miles on the turbo with out any issues, MPI with Hurricane costume clutch. Studs down the middle with tunners up front gears were changed. Love this sled. Wish the MPG were a little better but..........

If you're running the GEMS controller, I would ditch it for the PCV. Get Dave to tune it at hurricane or Ulmer. The GEMs controllers are much harder to get your fueling spot on. I run the full hurricane system but I'm consistently 20-30% less fuel consumption than my two buddies with the full MPI with GEMS setup. The one guy has switched to PCV but doesn't have any seat time on it yet.

 

[Mike P]

If you're running the GEMS controller, I would ditch it for the PCV. Get Dave to tune it at hurricane or Ulmer. The GEMs controllers are much harder to get your fueling spot on. I run the full hurricane system but I'm consistently 20-30% less fuel consumption than my two buddies with the full MPI with GEMS setup. The one guy has switched to PCV but doesn't have any seat time on it yet.

I will need to check this out. Thank you for the information, cant always find an open gas station with 93 octane and its even harder when your the first one running low on fuel.

 

[Kenzie]

I can relate to always being the first one looking for fuel at only 180 hp base mpi she thirsty can't wait for pcv even if it's slightly better I can be the second guy looking for fuel

 

[yamahaguy]

Not against PCV, its a awesome product. but would a guy even come close to saving enough gas to justify the cost of PCV during the life of the sled? I figured I use 4-5 gallons more a season then my buddies with PCV so I cant justify the cost just to save that little bit of gas. Depends on the kinda mileage your running in a season I guess, or if you just really like to spend money to fine turn things which a lot of us here do, lol

 

[Sleepingkitty]

Not against PCV, its a awesome product. but would a guy even come close to saving enough gas to justify the cost of PCV during the life of the sled? I figured I use 4-5 gallons more a season then my buddies with PCV so I cant justify the cost just to save that little bit of gas. Depends on the kinda mileage your running in a season I guess, or if you just really like to spend money to fine turn things which a lot of us here do, lol

I would say it does. I was at least 5 bucks per fill up less. Not only was I cheaper, I had the added insurance of being able to run 87 octane if I couldn't find 91.

 

[murdered141]

I would say it does. I was at least 5 bucks per fill up less. Not only was I cheaper, I had the added insurance of being able to run 87 octane if I couldn't find 91.

With any turbo, boost is boost, if your running 87 the sled will drink more of it, it's all in the tuning, there's a reason huricane includes new injectors with their kit, just dont hold it at wot... compression and timing is a whole nother story.