Which Turbo to get?

And when we start trying to make big HP with a slow spinning engine (diesel) we need all the spool up help we can get.
 
4kops said:
The major difference between a "bushing" vs "ball bearing" is that the Garrett ball bearing uses a "dual Ball bearing" the ball bearing can take alot more thrust pressure than a conventional buskcing turbo. Spool up might just be in you head that you want to feel a difference. Not sure that anyone on the forum would notice a difference now maybe some like Dale Jr., or Jimmy Johnson I'm sure can feel a few horsepower difference not I. Again all these kits are good the question is who are you going to get the best support from. Thats really the question.
Click to expand...

Well the way I think is the bushings are way cheaper to fix and very reliable, 190hp is 190hp. So there would not really be a difference in power. More so the lag, and really there is no lag with a turbo on the Viper! And the quick spool waste gate is quicker and gets you up to 6 pounds even faster! Just knowing that Yamaha supports MPI is a comfort In my mind!
Yamaha does some very brutal testing and MPI has passed them test over the years! So they have the knowledge and equipment to provide a great turbo kit!!
 
This is what I don't understand, but before I start I will say that I think that the blue and white 2015 viper is the best looking sled you can buy hands down.

Ok here it is, first I have never driven a viper ( dumb I know, order one without drive it) but you guys are saying that they are underpowered and my buddy is saying the same thing. So now Yamaha has came with new mountain sleds and if you don't go with the turbo they are pretty much junk. I have seen a lot of reviews of the MTX nitro and when compared to all other mountain sleds they just don't compete. And all you guys are saying that the viper feels less powered then the nitro. So now what, Yamaha's selling point with the viper is they use Yamaha clutches and that seems like the biggest problem with the sled.

I'm still not sure if I'm going with a turbo or not, maybe I just might try clutching first with a can. I am coming off 2011 apex so I know there will be a different but not like I'm reading. I hope I haven't made a mistake with getting rid of my apex for the viper.
 
i drove my wifes apex with a yamcharger alot this winter smooth trails love it i love the motor the seating postion i just don't like I had a apex with a mcx290 kit now riceburner has it fast as hell but the seating didnt agree with me. IMO you have two totally different sleds i like standing sometimes apex I can't I also bought a viper without driving not a big deal i also ordered a xtx le this year but hope to have my nypex on the trail first thing next year. Again IMO if you don't turbo it you I think you will miss the hp.
 
Do anybody have a PDF copy of the instructions for MPI, MCX or hurricane turbo kits for the viper. I just want to see what is involved to installing one.
 
Would have been nice to see a 190 Hurricane and a 190 Mpi line up just to see if any bears are shittin in the buckwheat. I don't think either are having issues or we would have heard about it by now and knowing how companies are maybe Yamaha chose the highest profit line with their choice. Just my thoughts
 
Joshua said:
This is what I don't understand, but before I start I will say that I think that the blue and white 2015 viper is the best looking sled you can buy hands down.

Ok here it is, first I have never driven a viper ( dumb I know, order one without drive it) but you guys are saying that they are underpowered and my buddy is saying the same thing. So now Yamaha has came with new mountain sleds and if you don't go with the turbo they are pretty much junk. I have seen a lot of reviews of the MTX nitro and when compared to all other mountain sleds they just don't compete. And all you guys are saying that the viper feels less powered then the nitro. So now what, Yamaha's selling point with the viper is they use Yamaha clutches and that seems like the biggest problem with the sled.

I'm still not sure if I'm going with a turbo or not, maybe I just might try clutching first with a can. I am coming off 2011 apex so I know there will be a different but not like I'm reading. I hope I haven't made a mistake with getting rid of my apex for the viper.
Click to expand...

See the clutch fix. My and NOS-PRO Viper blow away any like setup Nytros. Hopefully Yamaha fixes the clutches for 2015.

But that being said if you are coming from an Apex buy the cheap Turbo...the Viper mountain is EVIL with boost so the trail Viper has to be too!
 
yamafart said:
Would have been nice to see a 190 Hurricane and a 190 Mpi line up just to see if any bears are shittin in the buckwheat. I don't think either are having issues or we would have heard about it by now and knowing how companies are maybe Yamaha chose the highest profit line with their choice. Just my thoughts
Click to expand...

I too think it would be neat to see the two kits lined up side by side but realistically there are so many different factors that come into play once u go with a turbo in my opinion. Actual boost numbers and afr readings that I'm sure affect power drastically if not spot on right..I was considering the trail kit but after talking more with my dealer about it I decided to go with the mpi kit with the inner cooler because we ride right around 1000ft elevation and supposedly without the inner cooler I wouldn't be able to run as much boost without detonation. Personally I'd hate to spend $3k on a kit that I can't get 180-190hp out of..if I buy a turbo and can only run 3-4 pounds of boost safely because of my low elevation then I'm gonna spend the extra cash and make it worth doing. Just some food for thought for people wanting to do a turbo. Should have it all installed mid summer and hopefully I'll be able to start riding again this year as early as last year! Oh and in my opinion anyone saying the viper is underpowered is lying..even in stock form they r very powerful..they just don't have the speed of the 800 2 strokes..but really is t that the exact same way the nytros were? The viper is an awesome sled even totally stock..turbo should make it a riot! :Rockon:
 
I not understanding what you mean by you can only run 3-4 PSI of boost at your elevation. After doing a lot of research I have decided to go with the hurricane turbo kit, and after talking to Dave I will be running between 5.5-6 PSI at sea level.
 
Not saying it's not possible to run 6psi at my elevation..that's where I will have mine set. The one major concern with the trail kits without inner coolers is that that air entering the intake is going to have some serious temperature to it. One of the main reasons yammi is only offering the mpi kit on the 15s to the high elevation guys. Even tho 6psi is the same at 1000 feet as it is 10,000 I feel the difference in air could be an issues, just passing along info I've been told since doing my research.
 
Can't remember seeing anybody complain about temperature with these new trail kits. But this is a good question for both Dave (hurricane) and Matt (MPI). Hey guys should we be concern with temp issues with these non inter cooled kits?
 
So comparing apples to apples the mpi trail kit for 2999.99 doesn't have a intercooler uses stock injectors and pump and a lower end turbo than their high elevation kit? Does it include gauges?
 
yamafart said:
So comparing apples to apples the mpi trail kit for 2999.99 doesn't have a intercooler uses stock injectors and pump and a lower end turbo than their high elevation kit? Does it include gauges?
Click to expand...

All of the kits we offer use the same Mitsubishi turbo. The only time we use a different turbo is when we go to stage 2. Gauges are not included. Yamaha evaluated both intercooled and non intercooled systems. The temps at 6 psi are within reason. But the intercooler pulls between 60-90 degrees out of the charge temp. Another big reason for Yamaha to use non intercooled kits is cost. High quality domestically made intercooler cores are expensive. You can find cheap Chinese cores all day long but the don't the same efficiency. The cores we use have a very low pressure drop. Beware of the Chinese knockoffs they look like an intercooler but don't function as well.
 
Thanks Matt
If I read this right Yamaha is installing non intercooled kits? Does outside air temp affect these charge temps as much as elevation or to what degree? Like would running a external intake be even close to a intercooler and how warm can outside temps get before you start having issues?
 
This got me thinking. When you say heat issues, do that me performance issues or engine temp issues.

One of my buddies has a 14 viper no turbo and he is after having engine temp issues, to the point it shut down six times. He was riding with 5 other yamaha 4 stroke sleds and none of them had heat issues that day.

I wouldn't want to create more heat with a non inter cooled turbo
 
You must log in or register to reply here.

Similar threads

D
mpi or push or hurricane turbo?
Replies
9
Views
1K
DViper
DViper
K
Turbo option....
2 3
Replies
34
Views
5K
TurboJamie
TurboJamie
yamaha06
Which to buy?
2 3
Replies
34
Views
3K
stingray719
stingray719
rbell14
Viper Turbo Recommendation
2 3
Replies
32
Views
8K
yamahaguy
yamahaguy
nytro rtx se
12v power for aem guages
Replies
6
Views
1K
Mitch Desorcy
Mitch Desorcy


Back
Top