Where's my boost hiding? (MPI S/C)

[rxrider]

It must have gone into the deep Ocean, much like the missing heat of what the CAGW scare mongers are telling us LOL

Get it up to 8800 and Your boost will be about right. Keep the AFRs below 12.5 at WOT at 8800 RPMs.

 

[A.Granath]

It must have gone into the deep Ocean, much like the missing heat of what the CAGW scare mongers are telling us LOL

Get it up to 8800 and Your boost will be about right. Keep the AFRs below 12.5 at WOT at 8800 RPMs.

Just got a weekend in of hard riding!
@2800 feet and 8800 rpm i had about 10psi and the sled ran strong, not a single hesitation when punching the throttle! I have a small afr spike just in the beginning before the injectors catch up, when i look at other mcx 270hp turbos they have the exact same spike so it can not be that bad i hope (i can't feel or hear the spike in any way)

I'm thinking maybe i should change to a 2 angle helix (using straight 43 now),i always over rev +9000 and the the rpm drops to 8000 and starts slowly to climb back up towards 8800.. what do you guys think about that?

Only issue i had this weekend was that i had to refill some charger oil after each day to keep the level where i want it, it can be so easy that i reused the copper rings for the banjo fittings an i got a small leak somewhere.

//AG

 

[Riceburner]

[quote="A.Granath
Only issue i had this weekend was that i had to refill some charger oil after each day to keep the level where i want it, it can be so easy that i reused the copper rings for the banjo fittings an i got a small leak somewhere.//AG[/quote]

We had an issue on 2 of my former sleds. [MPI Supercharged.] They were blowing the Traction Fluid out the vent hose.

We drilled a hole in the cap of a small plastic pop bottle slightly larger than the vent hose & ran it into the pop bottle.

Collected the Traction oil & refilled the tank with it later in the day. Stuff is expensive.

Eventually we noticed the bottle was not getting any fuller so we stopped adding it back in the tank.

On the Apex/ RX 1 the traction fluid level should only be filled to the bottom of the Dipstick it seems.

 

[ghost rider]

Oh its a whole diff animal even at 6#'s which it was before is much faster than it was prior at 6#'s with the new quick spool waste gate it is stronger out of the hole and pulls hard to over 100. At 9#'s it pulls the skis 12" to 40 mph then they go to almost 3' if Im not carefull and it carries them there till 100 mph. It was originally set up at 7 and 11 on the switch and I backed it down it was not trailable.

What is a quick spool waste gate?
Sorry but I'm not familiar with that term however, it sounds like a good thing.
Yamadog... Do you have any video of your sled?

Hear is mine from Sunday shot by my wife at 660 ft.

http://youtu.be/tFZcjFwzBhQ

 

[A.Granath]

We had an issue on 2 of my former sleds. [MPI Supercharged.] They were blowing the Traction Fluid out the vent hose.

We drilled a hole in the cap of a small plastic pop bottle slightly larger than the vent hose & ran it into the pop bottle.

Collected the Traction oil & refilled the tank with it later in the day. Stuff is expensive.

Eventually we noticed the bottle was not getting any fuller so we stopped adding it back in the tank.

On the Apex/ RX 1 the traction fluid level should only be filled to the bottom of the Dipstick it seems.

Thank's for the input Riceburner! That's a smart ting to route the vent hose down i a small bottle to see if if it's pushing out oil that way. Right now i have a small hole in the subframe where the hose goes in to.

This weekend i rolled the sled probably 10 times to get unstuck so there must be some traction oil escaping only from that...

//AG