push 180 kit

[Vadnais]

I belive MPI is selling a upgrade kit. To bump the kit to 240 or some thing like that . Idk It is not the way i will be going with my kit.

 

[tmk50]

I have ridden MPI and Push - unfortunately it was not on the same day back to back, but I think both kits are very similar. I honestly could not tell a difference, but maybe if I would have had them both on the hill the same day....

Can someone educate me on why 8psi from one kit would outperform 8psi from another kit? Is it in the fuel settings? I was under the impression that the dobeck boxes on both kits were very similar or even the same. What about the MCX kit? I get it that some kits may spool faster on the way to the "max boost" of each kit.

I don't understand why you are upset that these 180hp kits aren't putting out 200hp. They are all advertised as 180hp..... Until we see each kit (Push, MCX, and MPI) run on the same day on the same Dyno, I won't lose any sleep.

Edit: Vadnais posted while I was typing - and addressed some of my questions.

 

[Assault10]

Oh im not losing sleep. I just would like the extra 20hp ya know! More the better. I love the sled and the boost. wouldnt trade it for anything. I just purchased a hallman pro rx.

 

[TRUEBLUEMAX]

I have ridden MPI and Push - unfortunately it was not on the same day back to back, but I think both kits are very similar. I honestly could not tell a difference, but maybe if I would have had them both on the hill the same day....

Can someone educate me on why 8psi from one kit would outperform 8psi from another kit? Is it in the fuel settings? I was under the impression that any sleep.

Two turbos at the same pressure should make the same amount of power. Most of the MPI kits are not coming set at 8 PSI as far as I have heard. The one thing it seems like however is that the supers don't seem to make the same power as the turbos.

I think either one is going to make anyone pretty happy. Let us not forget when our Nytros get to elevation they are probably barely pushing a hundred horses. 200 or 180 is still double or almost double the power.

 

[tmk50]

Two turbos at the same pressure should make the same amount of power. Most of the MPI kits are not coming set at 8 PSI as far as I have heard. The one thing it seems like however is that the supers don't seem to make the same power as the turbos.

I think either one is going to make anyone pretty happy. Let us not forget when our Nytros get to elevation they are probably barely pushing a hundred horses. 200 or 180 is still double or almost double the power.

Yep - my dealer was able to turn up my MPI turbo after they installed the boost gauge and saw that it came in the box set too low for the elevation I ride (9k to 11k typically).

 

[freight_train]

push turbo

Anybody happen to know base fuel controller settings for 0-3000 ft?

 

[TRUEBLUEMAX]

One more thought I had on this. I did say that two turbos making the same boost should make the same power. One thing I forgot to mention is turbo efficiency. If one turbo is not as efficient it will build more heat and charge air temps will rise as a result. At 8 psi I don't think either of these turbos is being pushed to the level of being inefficient. Much above that and I might question the mpi because it is a fairly small turbo but it works for what it is.

This would be my theory of why supers don't seem to make the same amount of power because they are bad about building heat.

 

[apex jeff]

I have ridden MPI and Push - unfortunately it was not on the same day back to back, but I think both kits are very similar. I honestly could not tell a difference, but maybe if I would have had them both on the hill the same day....

Can someone educate me on why 8psi from one kit would outperform 8psi from another kit? Is it in the fuel settings? I was under the impression that any sleep.

Two turbos at the same pressure should make the same amount of power. Most of the MPI kits are not coming set at 8 PSI as far as I have heard. The one thing it seems like however is that the supers don't seem to make the same power as the turbos.

I think either one is going to make anyone pretty happy. Let us not forget when our Nytros get to elevation they are probably barely pushing a hundred horses. 200 or 180 is still double or almost double the power.

I believe the turbo on the Push kit spools faster due to inner shell design and impeller(sp?) pitch. The doebeck box on the Push also has 6 tuning modes vs. the MPIs 4, allowing for finer tuning. Turbokinetics not only rely on exhaust pressure,but also heat expansion to spin the impeller. A supercharger always has a certain amount of parasitic draw on the powerplant and is limited to mechanical input only. I also think the power loss is not more than 15% when properly tuned for altitude,that is the secret of boost,you carry your atmosphere with you. Just offering what I've learned after owning supercharged Vector and my current Push Nytro.

 

[tmk50]

I believe the turbo on the Push kit spools faster due to inner shell design and impeller(sp?) pitch. The doebeck box on the Push also has 6 tuning modes vs. the MPIs 4, allowing for finer tuning. Turbokinetics not only rely on exhaust pressure,but also heat expansion to spin the impeller. A supercharger always has a certain amount of parasitic draw on the powerplant and is limited to mechanical input only. I also think the power loss is not more than 15% when properly tuned for altitude,that is the secret of boost,you carry your atmosphere with you. Just offering what I've learned after owning supercharged Vector and my current Push Nytro.

Mpi looks like it has six modes too on the box

http://www.mountainperformance.com/Files/Download/Nytro Supercharger GEMS Controller Setup.pdf

 

[apex jeff]

Mpi looks like it has six modes too on the box

http://www.mountainperformance.com/Files/Download/Nytro Supercharger GEMS Controller Setup.pdf

Read the top of the file again, that is for the supercharged nytro not the turbo. Also note section 4 line e some 180SC kits only use 3 modes.

 

[tmk50]

Read the top of the file again, that is for the supercharged nytro not the turbo. Also note section 4 line e some 180SC kits only use 3 modes.

Ok I didn't think they used different boxes for each kit. My bad. You would figure that it would be easier and cheaper for them to standardize around one box, but it must save them enough money to make them a profit...

 

[apex jeff]

Yeah, I think the more hp, the less user tunable modes are in the base MPI program. As a person upgrades from a base over the counter 180 kit, a new box is required. Kinda why I like the Push 180 it has a little more tunability.

 

[greasemonkey3406]

I spoke with Darren at E&S and the MPI upgrade kit will be ditching the GEMS box and going with a Boost-It setup.

 

[apex jeff]

That would be nice, but pricey.

 

[Powder Man]

I've had the push kit on my sled for the last 2 seasons and I've been really happy with it, no problems and always runs good. I sent my kit in for an upgrade and I'm curious to see if others have done it, or what else you've done to yours.
Last year I put a boost controller on and it really helped, now it'll hit 9lbs but any more it goes lean.