Thanks Chris.

 

Here is the clip that holds wg rod to turbo.

Use a piece of fish line on the clip during removal/installation so it won't be lost WHEN you drop it.

 

Here's the line that blocks access to the jam nut.

 

This is the screw near the right foot well to remove when removing muffler

 

I took the clip off my low miles 1 year old 900t and it was already rusted in half somehow, so there is that ????

 

We have replacement clips available. (not on our web site yet)

They are a different style, easier to re attach than the oem and seem to hold tighter than oem.

First pic is oem clip.

Second is the style I use.

 

Here is the clip that holds wg rod to turbo.

Use a piece of fish line on the clip during removal/installation so it won't be lost when you drop it.

because you WILL drop it.... ask me how I know!!!! Lol

 

I find it helps to jack the front of the sled up as high as you can. Gives you a better angle to see under the turbo. About time somebody took the time to post photo instructions. Thanks Chris.

 

A question for those that have adjusted crack pressure. How many turns would be a typical adjustment from stock. How much shorter are you guys making the actuator rod. I know this would vary some between sleds. Just trying to get a general idea.

 

A question for those that have adjusted crack pressure. How many turns would be a typical adjustment from stock. How much shorter are you guys making the actuator rod. I know this would vary some between sleds. Just trying to get a general idea.

On 205 tunes we have been going 1.5-2 turns

 

Don’t just assume your wastegate needs adjustment. You need to have a way to measure boost. Don’t go much past 16lbs or you run the chance of being lean.

 

14.2 to 14.5 boost pressure at 100% wgdc with Whalen 180 tune and PV3 data logger.

 

1.5 turns wasn't enough for me. If you want to do it once and be done with it then buy one of these. Nice tool to have anyway.

Mityvac MITMV8500 Silverline Elite Automotive Vacuum Pump Kit https://www.amazon.com/dp/B0002SQYUA/ref=cm_sw_r_sms_apa_i_l.CuEbP0NFFFG

Set the crack pressure to 7psi. You should be good to go. It took more than 2 turns for me to get where I needed.

 

Here is a video on a cam am explaining how to use the mityvac with the 900t. Obviously a lot harder to do on the snowmobile, but otherwise identical. You only want to have to do it once.

 

I just happen to have a mityvac that we use to pressure check our rebuilt outboard lower units. Guess I'll get after this project tomarrow. And verify results with PV3. Great how too thread.

 

I got a hurricane 205 tune, the check on the waste gate actuator, from the brp shop manual says 6.24 psi should give a movement of .039, and 8.27 psi should see a movement of .197 thou, controlled by the boost control valve, , is there a actual pressure check on the actuator to do, or is the stock pressure check what u should see. I see some doing 1-2 turns , is that to set to boost pressure . Thanks Chris, on the pm, want to see 7 psi on actuator

 

About $60 will let you set the crack pressure without guessing

 

Got a pm from Chris, all good now , yes the tool would help , as the spring in the actuator has lots of production variables. Love the tune , crazy fast, and fuel economy is really good, did a run yeasterday, 135 miles and still have 2 bars on the fuel gauge,

 

Do you have a data logger?

 

what would u recomend

 

You have Dave's tune so you would need a gap flasher. I think he charges around $500 for it. You might be able to find one used. I don't know if you have to pay a license fee if you buy a gap flasher used or not.

I use a power vision 3, which is $400, but it's not compatible with Dave's tune. It comes with its own tune or you can buy someone else's tunes like Whalen or aftermarket assasins for about $75 to $79.

Without a data logger you're just making a decent guess on what the sleds doing. Lots of advantages to having your own. Clearing codes, watching for knock, seeing small boost leaks that don't send codes.

 

X2 on the Pv3 data logger. Without it I would have never seen that I wasnt getting full throttle. Or that my waste gate was running 100 percent. And only 14psiboost after tune. After adjustments im seeing 15x pounds of boost. Its nice coming home, having a cold one and reviewing data logs.
That hardest part of adjusting the crack pressure is the dang jesus clip. Just buy an eclip if your going to do this.

 

Good morning.

Do you need to have the gap flasher plugged in all the time to get the logs ?

Dose the gap flasher store the logs?

I have one and it would be nice to see the logs.

Thanks

Pete.

 

If you own the gap flasher you also need data logging (additional cost) and have the gap flasher plugged in to the sled to record/view logs. It connects to your phone via blue tooth.

Live data can be viewed as well with your phone or ipad mounted on the dash.

 

Chris

Im not sure i might have it on the gap flasher now.

How could i tell if i do have it?

If i dont how much is the data logging?