BD Box numbers for 09 RG M8

[ikold]

Converted from a PG setup to RG. With EBC. Am running 9.5lbs of boost on 100ll.

Am wondering what numbers your using. Sled is pulling good in the mid range but I think its way to rich full throttle and it cutting out and loosing power during sustained full throttle pulls in deep snow.
Interestingly when on the trail under full boost it seems to be ok (am guessing because there is greater availability of cold air.)

What numbers are you using lo mid hi ?

 

[bparks]

did you put your box in advance mode you should have a psi low and psi hi window if you have it in advance mode than would need more info like altitude and clutching my set up is for 8000 plus so if your in that altitude than i have some good starting numbers

 

[ikold]

Have not put it in advanced mode. Not sure I even know how to do that. I do have a capture button on it.

 

[ikold]

Sled is pretty setup and when it was PG it was spot on perfect. Was setup by Volhk and am thinking that he set it up just a little rich to keep it safe. Well I'm guessing its running a little to rich.

 

[realbass]

Sled is pretty setup and when it was PG it was spot on perfect. Was setup by Volhk and am thinking that he set it up just a little rich to keep it safe. Well I'm guessing its running a little to rich.

You should enter in Advanced Mode Setup.
Try to push together 2 buttons "<-" and "sel" when you will start engine.
You get in advanced mode and you will can change fuel on your stock injectors (PSI L) and also your secondary injectors (PSI H)
Good Luck

 

[TheBreeze]

I bet your secondary's are not active, and you are actually going lean at sustained WOT.

You should really give Sam a call at Boondocker. But, what you really need to do BEFORE your ride it anymore is:

Enter SuperTuner Mode by pressing down the right and left arrows on the box while starting your sled.

This will allow you to set up your CR , and OS numbers which are EXTREMELY important.

If you were pump gassing it, your CR is likely set at 83. CR dictates when your secondary injectors begin to fire. Take CR divided by appx 4.33, and that is the boost level they begin to fire, and also when your PSI H numbers control the tune. At this time, also check all the fuel numbers and make sure you have the PROPER Boondocker starting numbers in the box. A CR of 83 effectively turns your secondary OFF.

Move your CR number up or down until your DC out is in the area of 90-96 after making a good pull.

Exit super tuner mode by holding down the left arrow, and select button while starting the sled.

 

[av8er]

with secondary injectors your cr should be about 39

you want your psil to be about 19-22, mid 33-36,high 46-50,
To check the os and cr you need to be in supertuner mode. Turn the sled off or unplug the battery. Hold the right and left arrows and plug the battery in or start the sled. The screen should say super tuner mode. Cycle through everything until you find the os and cr. If the cr is up around 83 then the aux injectors won't come on, lower that number to 30. The aux injectors will come on at about 7 lbs of boost. Use the PSI low if you are under 7 lbs and psi high for over 7 lbs. You should not need to adjust the PSI H low very often, like wise with the PSI L hi. Make sure you don't get your psi mid numbers in either range to low, you need that fuel when you accelerate

 

[TheBreeze]

Good post av8er. I just wanted to point out that the numbers you threw out there seem a bit high for the PSI L circuit (i am guessing because you were running a big bore maybe?). I believe boondockers recommended numbers for the more recent race gas kits for the M8's are as follows:
PSI L
L 10
M 25
H 39
OS 20

PSI H
L 10
M 27
H 48
CR 21

Adjust CR accordingly to get the DC out into the low to mid 90's.

 

[av8er]

yeah for sure my big bore was a little different- I tried to help the best I could

good luck