bd pg issues

[bonecracker]

Anybody got any ideas why I can't get more fuel to the engine? Duty cycle is 99 on the stats screen and I am still hitting 1250f pto/ 1220 mag on a 5-10 sec pull in powder running 5-6lbs (max 6.2 on bd box)at 5800ft elev. I can increase my hi #'s to as high as 70 without any change. lo and mid are set to boondockers starting numbers and work fine. All other settings in the box are as they were when it came.
Sled is an 09 m8 with new turbo kit. I checked all my connections to my fuel pump, both electrical and boost reference, and can't find anything wrong. Egts are where Boondocker instructions says to have them on the y pipe(can't remember the exact distance).

 

[mmsports]

BD box

Sounds like its not getting out of the mid range. Up your numbers in the mid.


Check the boost line going to the pressure regulator to see if leaking.

 

[minie me]

did you check your plugs at these temps?

 

[bonecracker]

Thanks for the quick replies! I really appreciate it. I'd like to ride tomorrow but that ain't gonna happen til I find out what's goin on.

What do you mean by staying in mid? The bd box shows that I'm getting to hi in status screen. Can the box say I'm hitting hi but it stays in mid? I checked the boost reference line to the pump by pulling the line off the airbox and blowing through it but I'll pull all the fittings etc off and double check.

The plugs were lean at 1250. No doubt I was hot. 1250 after 5-10secs and climbing, not good.

 

[JHG]

Check and make sure that you have the wastegate tight on the turbo. There should be no play in the arm. It sounds like you have boost leaking somewhere. You're duty cycle at 6 psi should be in the low 80's. I'm at 96 duty cycle running 9.2 psi.

 

[bonecracker]

mmsports; I re read your post and I see what you're saying now. If I'm loosing boost like hoe said then I won't hit "hi" boost setting. What is low, med, high in regards to boost? ie. low=1lb, mid=2-3, high= 4-6 (examples only)

 

[matt159]

Someone that knows more than me will certainly chime in, but I'd use the "capture feature" on the BD box to tell you LOW, MED or HI and what fuel it is adding when you press the remote button conveniently mounted on the handlebar. I think it's about $15 if you don't have one. See page 8, 9 and 11 of the file on BD's site about capturing duty cycle info.
BD's turbo control box instructions .PDF

 

[bonecracker]

Wastegate was not closing all the way, close but not quite tight. About 1/2 turn to make it fit without too much tension on the arm. Boost line and fittings to pump are good.

Thanks for the help. Hope it works right now.

 

[bonecracker]

mmsports; I re read your post and I see what you're saying now. If I'm loosing boost like hoe said then I won't hit "hi" boost setting. What is low, med, high in regards to boost? ie. low=1lb, mid=2-3, high= 4-6 (examples only)

I'm curious to the answer to this. Anyone have any insight or am I not on the right track?

 

[bonecracker]

Ok, I figured out the issue was my fuel pump failing. Bottom of the tank was covered in steel filings. I ended up running 75% race fuel at 6lbs and would have burnt down if I hadn't run race gas before I figured it out.
My question is; this year I'm thinking of putting a setup like a Cutler stage 2 fuel system or chatting with the guys at Twisted, for reccomendations, as they know their stuff. Any comments? Stick with stock setup? Will it last, I don't feel like changing a fuel pump every yr or two? Change to higer flow pump/external regulator?
Sled is an 09 800 BD pump gas w EBC.

Thanks

 

[matt159]

The new BD race gas kits now have an "upgraded" in tank fuel pump as part of the kit (instead of the extra external MSD pump & regulator). I still have the MSD & regulator setup, so can't attest to reliability of the new style, but it's supposed to be an easy & clean setup since you don't have to do the regulator & fuel return plumbing.

 

[never enough snow]

The new BD race gas kits now have an "upgraded" in tank fuel pump as part of the kit (instead of the extra external MSD pump & regulator). I still have the MSD & regulator setup, so can't attest to reliability of the new style, but it's supposed to be an easy & clean setup since you don't have to do the regulator & fuel return plumbing.

I ran the upgraded boondocker fuel system all last year worked flawless

 

[bonecracker]

I didn't even consider bd. I thought they were only offering the extra pump. I'll give em a call and see if the new single in tank fuel pump works with the pump gas setup. Can't see why it wouldn't. Thanks.

 

[mmsports]

Fuel pump

I love the in the tank Fuel pump and reg, I have had good luck using the BDX pump and reg. Yes it will work better for you and deliver more fuel.

about 450 for the BDX set up.

 

[mynewuseddoo]

The in tank fuel pump is most likely from cutler anyway. Purchase it direct from cutler and save yourself the price mark up.

 

[never enough snow]

The in tank fuel pump is most likely from cutler anyway. Purchase it direct from cutler and save yourself the price mark up.

The Boondocker fuel system is not a Cutler "knock-off". They take the stock fuel pump on the '09 and up, and take ac/dc power from the sled stater and they use a driver module to make the fuel pump motor a variable frequency drive pump. This in turn increases the voltage and the rpm of the pump which will give you more fuel flow. This system has been designed to work on RG or PG systems up to 350hp.

The '07-'08 models can take advantage from this system as well, but you must upgrade the fuel pump and add the fuel driver module. Makes for an excellent system.

And as far as Boondocker always changing things, it seems to me that they are always trying to make the turbo world much better for all of us. There are a couple of other companies that do the same. Some turbo systems have been the same year after year.

 

[mynewuseddoo]

Sounds kinda cool. So you say a variable frequency drive pump. Does this driver module actually vary the pump RPM's depending on demand or does it run the fuel pump at a set RPM only? I am imagining this module is tied into the Boondocker box some how?

 

[never enough snow]

Sounds kinda cool. So you say a variable frequency drive pump. Does this driver module actually vary the pump RPM's depending on demand or does it run the fuel pump at a set RPM only? I am imagining this module is tied into the Boondocker box some how?

To my understanding, it varies the amount of fuel flow with RPM. This module is completely independent of the Boondocker box. Last year it was installed inside the EBC, but they have made it separate this year to give people the opportunity to use it with or without the EBC.

 

[GF2]

How much for this BD fuel pump upgrade for 09 pg?

 

[never enough snow]

Under two hunderd dollars easy install