Nytro turbo boondocker control box help

[ride907]

I checked out the boondocker website and looked up the guide for the control box, very informative indeed. I got to this magical part where it said "contact us for latest settings."

I have not gotten a reply yet.

Anybody running this controller? What settings are you using for various boost levels? I'm looking to run 15-20psi on C12 from 0-2500ft elevation. Thanks!

 

[HYFLYR]

What setup are you running this on, a little more info will go a long way.

 

[TurboTime]

If you are running the controller with ADA then these are the starting numbers
RPM Range. Low. Mid. High.
3000. 3. 0. 0
5000. 0. 0. 0
PSI. 3. 15. 13

These should keep you at the optimal A/F levels

 

[ride907]

I don't know if it's ADA or not. The RPM settings are 3k 5k 7k and 8500 I believe. There are also 6 psi settings turbo low and turbo hi for low/high boost and the cutoffs for hi/lo are -4 0 4 8 on one screen then 12 16 20 24 on the 2nd.


All I know is it has a a rear mounted internally wastegated turbo. I measured the impeller on the turbo and the compressor housing and it identically matches the PTE 5431B. (450hp turbo)

This thing has a plenum with injectors plumbed into it that feeds the throttle bodies and a boondockers fuel rail on it as well. The plenum has a BOV installed on the front right side of it (as you face the engine). Also there is a big fuel pressure regulator mounted and a big fuel pump near the battery.

I have the wastegate fed straight off the compressor so, it's only hitting about 10psi. Before I fixed the wastegate (rusted stuck closed) it was shooting up well past 20 and I'd back off the throttle for fear or detonation or bending a rod. I don't know what a stock bottom end will handle.

I've tried to contact boondockers 2x and no reply, same goes for the guy I bought it from, so it's a slowly unraveling mystery to me.

I don't know about the primary clutch but it has a shockwave secondary. It also has anti ratchet drivers and a CE 174 track on it.


It's all controlled with the boondocker turbo nytro control box and the guy told me race gas only.

 

[ride907]

I got a reply from Boondockers finally with initial settings. The machine is running way better. I'm getting knock at 10psi on C12 so... it must be time to add some fuel up top.

 

[TurboTime]

Here you go.
Controller # without ADA:
08 Yamaha Nytro Starting Numbers for GT 2860 RS 3/7/2008
RPM Range Low Mid High
3000 0 0 0
5000 1 2 2
7000 ‐10 0 0
8500 ‐20 0 0
TBOL ‐4 0 4 8
0 1 5 10
TBOH 12 16 20 24
15 21 34 50
ACEL AM DR Sens
0 0 5

Controller with ADA
RPM Range Low Mid High
3000 3 0 0
5000 0 0 0
PSI 3 15 13

Hope this helps

 

[ride907]

Thanks for the help. I must have an older version of the control box, or some different one. Mine has the rpm increments going 3k 5k 7k 7750 and 8500, and there's no tbo hi/lo with the -4 0 4 8 etc, only the psi hi/lo.

I used as many of the settings as I could and filled the gap for the 7750 to blend evenly between the 7k and the 8500.

My AFR's were in the 14s/15s under boost so I went to 7k 7750 and 8500 and changed the high setting to 15 20 and 25 respectively. AFR's are down to 11:5ish and the power is nice. Since I'm not intercooled and dont have any knock detection, I'm gonna go for the extra safety and go 11:1 with it.

I'm only running 10psi for now, I want to go to 15+ but... with no intercooler I don't know what I can get away with on C12. The guy I bought it from said he was running 25psi in the mountains. Scary. I can't imagine what the rods/pistons went through. I also don't know if he was telling the truth to coax me further into buying it.

Thanks again for the help, you guys are all life savers to us rookies learning this stuff.

 

[TurboTime]

The key with this controller is making sure you adjust the boost fuel !!!!! As you can see from the starting numbers, not much change with the RPM fuel, maybe a tune or two in mid or top
These controllers are awesome and very precise, especially in altitude changes, IMO, one of if not the best on the market...

 

[ride907]

My control box doesn't have the -4 0 4 8 12 16 20 24 settings anywhere in it, all it has is psi lo and psi hi. I'm assuming it's probably used for the same purpose.

Does tuning with the rpm settings change the OEM injectors and the boost settings the secondary ones? My last recorded duty cycle was 65/99. I guess I'll go back those rpm sliders off to where they were and try to tweak the psi sliders instead and see what I get.

 

[TurboTime]

My control box doesn't have the -4 0 4 8 12 16 20 24 settings anywhere in it, all it has is psi lo and psi hi. I'm assuming it's probably used for the same purpose.

Does tuning with the rpm settings change the OEM injectors and the boost settings the secondary ones? My last recorded duty cycle was 65/99. I guess I'll go back those rpm sliders off to where they were and try to tweak the psi sliders instead and see what I get.

That would probably be the best thing to do. Just keep a watchful eye on your A/F readings.