New fuel system testing.

[NM]

This sled is almost ready to go for this weekend. This will be the first Apex with this system and it will be interesting how it runs with extra injectors. I am trying two different size injectors and will just change them on the hill. The first set would be suitable for up to about 320 hp and the second set would be good for up to about 420 hp.
I know the Nytro works unreal with this system and I expect the Apex will work even better.

 

[Motleyone]

goin to Revy Neal? I may be headed up. See you there if I do.

 

[NM]

goin to Revy Neal? I may be headed up. See you there if I do.

Ya just riding Sun on Boulder. Maybe see ya their.

 

[canucklehead]

You should put your other pics in here from that RB thread.

 

[NM]

You mean these ones?

 

[NM]

I have sold a 2 injector system to a guy who is going to try it with a XP turbo. I think he is going to love how easy it will be to dial the fuel in no matter what the conditions.

 

[TurboMatt]

HOw does the hood/headlight fit on with those injectors sticking up like that?
Aren't you worried about the sled landing on the injectors?

 

[NM]

HOw does the hood/headlight fit on with those injectors sticking up like that?
Aren't you worried about the sled landing on the injectors?

Pretty sure a stock headlight won't fit regardless. I'm not to worried about the injectors or intercooler being damaged from a rollover in snow, but I suppose a rock or something may do some damage. The injectors are mounted at about 15 deg in to the intake but realistically could be mounted up to 45 deg or so. I considered mounting them in the front of the tank, but they look more sporty where I put them.

 

[NM]

Keeping it dry.

 

[tranquillicer]

Timing

What about cam timing when you change over to your stand alone system? I run a PL system stage 3 with the Rb3. Will the current timing set-up be ok? How do these injectors fit under the Nytro plastics?

 

[gunnerthesnowman]

This sled is almost ready to go for this weekend. This will be the first Apex with this system and it will be interesting how it runs with extra injectors. I am trying two different size injectors and will just change them on the hill. The first set would be suitable for up to about 320 hp and the second set would be good for up to about 420 hp.
I know the Nytro works unreal with this system and I expect the Apex will work even better.

what kind of boost are you running to get 320 or 420 hp

 

[NM]

What about cam timing when you change over to your stand alone system? I run a PL system stage 3 with the Rb3. Will the current timing set-up be ok? How do these injectors fit under the Nytro plastics?

I have never tried to mess with timing on any of my sleds. Have 10000 kms and have never had a problem.
It fits much better in the Nytro than in my Apex. No problem at all.

 

[NM]

what kind of boost are you running to get 320 or 420 hp

If you read it again, I stated that the injectors I am going to try would supply enough fuel for those kind of numbers. I am going to try and get it on a Dyno next week.

 

[SPOOLED]

that is how i took that, are you running stock fuel pressure with the 42lbs injectors. or are you using 1:1reg

 

[NM]

that is how i took that, are you running stock fuel pressure with the 42lbs injectors. or are you using 1:1reg

I run 45 lbs fuel pressure Nytro and Apex and a 1:1 Malpassi regulator.

 

[BigFish BC]

hey neil why the two ajustment knobs do they ajust differnt ranges & what are you running for secondary injectors on the nytro.you should throw up those nytro pics you sent me i would put them up but dont have accsess to my home email at work.it almost looks like it has a built in a/f gauge to or are those lights for something else,looks good i will be getting one from you after summer.

 

[gunnerthesnowman]

This sled is almost ready to go for this weekend. This will be the first Apex with this system and it will be interesting how it runs with extra injectors. I am trying two different size injectors and will just change them on the hill. The first set would be suitable for up to about 320 hp and the second set would be good for up to about 420 hp.
I know the Nytro works unreal with this system and I expect the Apex will work even better.

so how did it work , lets see some video

 

[NM]

hey neil why the two ajustment knobs do they ajust differnt ranges & what are you running for secondary injectors on the nytro.you should throw up those nytro pics you sent me i would put them up but dont have accsess to my home email at work.it almost looks like it has a built in a/f gauge to or are those lights for something else,looks good i will be getting one from you after summer.

The knob on the left adjusts at what amount of boost the box starts to add fuel. This can change day to day depending on snow conditions and engine load, and is the reason MCexpress sleds have a bad roll on stumble some days and next to none on others. The other knob is simply adjusting duty cycle of the injectors for more or less fuel. I did some testing yesterday in Revy and will have the details later. It is interesting how much different the Apex and Nytro are to tune. The Apex wants fuel as soon as boost comes on and the Nytro likes extra fuel at between 3-5 lbs boost depending on snow conditions.

 

[TurboMatt]

After looking at this much closer, those boxes look exactly like SDS EIC controllers.
What gives?
http://www.sdsefi.com/eic.html

 

[NM]

After looking at this much closer, those boxes look exactly like SDS EIC controllers.
What gives?
http://www.sdsefi.com/eic.html

Good find, they look that way because that is exactly what they are. I did remove the SDS sticker out of courtesy to them so they would not be bombarded by phone calls. The owner of SDS and I have an agreement that I sell and distribute the boxes for use in snowmobiles. Because they have no experience with snowmobiles, and really have no desire to learn about them, they have left it to me for testing and setup of this system for snowmobile use. When I sell the boxes, injectors, etc., the install instructions have SDS written all over them and I then include some other parts and instructions how to set this box up for snowmobile use. SDS has been excellent to work with and have years of fuel injection experience. This is the reason I bought their system, and when I discovered how good they worked, I thought I would give other people the opportunity to enjoy the simplicity of tuning and full potential of their own turbo kit. I am not getting rich doing it, and if I find it's too much of a pain in the ***, then I wont' sell them at all. The group I ride with will all have them though, and all of our sleds will run good all of the time.
Cheers