Question for Powder Lites Nytro Owners

[seano700]

Question 1,
I recently loaded the new 4th generation map and plumbed the fuel pressure regulator into the charge tube. The midrange stumble is now gone but my WOT AFR is 12.9-13.5. I then turned fuel pressure up to 50 psi and got it down to 12.7-12.8. Anyone else have this problem?? Running 10psi boost @ 2200ft.

Queation 2,
Recently I had a couple relays fail that were relocated under the intercooler (One for fan, other for headlight). I have replaced them and relocated them again behind the intercooler close to the motor. I still have a problem where the machine will stall intermitently. It seems when riding in powder the problem is worse, if you babysit it to dry things for a few minutes the problem will go away for a few miles. Any ideas?? Its like someone hit the kill switch, but the dash/speedo stays on. No codes eigther. I have die electric greased everything I can think of and no help.

Any ideas are appreciated. Sean

 

[WingNutRacing]

Check the RB3 box plug

Mine has died a few times when water gets into the plug on the RB3 box, really p'ed off about it the first time. I remounted it with the plug facing downward, seemed to help for that day.

Did your fan quit working when the relay got wet? I don't think mine is working all the time either.

Not getting a very quick response with my boost numbers either, may have a leak somewhere, or something, any ideas?

 

[Hrt Offroad]

Mine has died a few times when water gets into the plug on the RB3 box, really p'ed off about it the first time. I remounted it with the plug facing downward, seemed to help for that day.

Did your fan quit working when the relay got wet? I don't think mine is working all the time either.

Not getting a very quick response with my boost numbers either, may have a leak somewhere, or something, any ideas?

Best way to mount the RB3 box is on top of the battery with the plug side facing in towards the center of the sled...it's warm and dry in there

 

[WingNutRacing]

tried that

I even tried mounting it in there, and still ended up with moisture. Finnally mounted it with the plug facing down and loaded it up with di elec grease, seemed to get the job done.

 

[seano700]

Relays

There are 4 relays, on a stock sled they live up in the nose cone. I relocated them under the intercooler during the original installation. Bad spot for snow/mositure build-up. Now they are hung behind intercooler greased up wires facing down.

These relays run headlight, and fan for sure. Third I think is fuel pump, and the last is a relay assy with a zener diode drawn on the cover, made by Omron. No idea what it does.

My RB3 box is staying very dry on the battery so I think things are OK there. How about the fuses over top of the oil reservoir, what do they do?? Snow does accumulate on them still.

Finally My CDI and voltage regulator are in the nose cone always under snow, the connection plugs look really weather proof has anyone had an issue with them??

Very frusturating problem to diagnose.

 

[brettr3006]

A/fr

Mine also leaned out with the new update, 13.5 @wot riding @2200'. Is this bad???? if so what should I do??

 

[WingNutRacing]

wires by oil res

I also noticed snow building up there, so I built a little cover from left over exhaust plastic and zipp tied it in place over that area.

If the fan relay gets wet,,,,, will it dry out and work again, or does it get shorted????

I'll have to check out the wiring diagram and find out what that other relay is for.....

 

[seano700]

Relays

I had three strikes on my relay's. I rode one day with no headlight (didn't notice till it got dark). Second day the fan ran all day long. Last time out the fan killed the battery stone dead (must have shorted during the night in the warm shop)

 

[WingNutRacing]

dead battery?

Were you out riding when the battery died??? How did ya start it again???

 

[TOPGUN]

I'm also alot leaner since the new map. I may reload the second last mapping

 

[MOB]

Have you guys added fuel up top where it needs to be? At what RPM and boost level are you seeing lean figures?

One map isn't perfect for all...some tuning needs to occur for individual boost levels/altitudes, etc.

Loaded the new map and moved the pressure signal to the IC and it's much much better, running at 3k.

My sled tends to go lean (low 13's AFR) above 11lbs. and above low 7k RPM on stock injectors with our dense marine air. Some Nytro injectors can run more, a few less...if I go up in altitude and move toward the interior, away from the dense marine air...I can run more boost (simple air density, much like changing altitudes).

Your starter relay is mounted near the oil tank, and not well shielded from above...some coolant splashed in mine late last year and corroded the contact enough to get nothing from key turn...cleanup and re-dialectric treatment and all is well...something to keep an eye on.

 

[Ultralord]

I was going to call you for the new map mine has the blurb but I am ok with it very minor. I turned my boost up to about 13-14 af is 12 I did notice some popping under full throttle first time it has done this It was also warm on saturday.

 

[Ultralord]

the boost controler and the gauge are junk whats a good replacement???

 

[jrusher]

the boost controler and the gauge are junk whats a good replacement???

Ya Im looking for a new boost controller as well.. New map was pretty good on mine @ 6000 feet and up it was rich at wide open throttle 11.5 on the AEM .. Running 11 lbs boost or so up top.. Clutching is still offf revving 8300- 8400 in deep powder pulls..
Was in over 4 feet of fresh all weekend grinning from ear to ear..Over 1000 km now gas and go!!

 

[seano700]

Update

Well,

I pulled the fuses and connectors out that are located above the oil reservoir. Found some signs of corrosion, cleaned them using contact cleaner and re-installed them with di-electric grease. Hopefully that takes care of the stalling issue.

During some testing I found my fuel pressure guage to be 10-12psi low!!! (I used an Auto meter fuel pressure guage instead of the one provided on the regulator so I could remote mount it on the handle bars) I dug out the original guage provided on the FZ1 regulator and set it to 45 PSI. Afterwards I made some short passes and it seems better so far, AFR is back down in the 12's anyway. I also found that 1/4 hose fits really loose around the fuel pressure regulator, but is really tight on the charge tube fitting provided. I installed a reducing union between them and found some smaller tighter fitting tubing to go on to the regulator. Will take it for a good ride tomarrow.

TopGun - Would you be able to email me the last load you had?? Unfortunately I never saved the original load from the RB3, before uploading the new map. Wish I had now.

 

[seano700]

Brettr3006 - Mid 13's on the AFR is too lean, make sure your boost connections between the charge tube and fuel pressure regulator are done up tight. I had to change tubing sizes and use a barbed reducing union to do this. Also double check your fuel pressure at idle.

I got a 2-5/8" liq filled guage from Powder lites complete with new bracket. Nice and easy to see now.

My boost controller died and I bought another turbosmart but the T fitting is incorporated into the controller, works well so far.

 

[TOPGUN]

If your famaliar with the totally yam site all the maps are there under The powderlites rapidbike section

 

[Lococoin]

Ya Im looking for a new boost controller as well.. New map was pretty good on mine @ 6000 feet and up it was rich at wide open throttle 11.5 on the AEM .. Running 11 lbs boost or so up top.. Clutching is still offf revving 8300- 8400 in deep powder pulls..
Was in over 4 feet of fresh all weekend grinning from ear to ear..Over 1000 km now gas and go!!

I wouldnt worry about 11.5 to one. You will be a couple of HP lower than at 12.5 but you have a nice margin of safety there. I used to run my turbo civic at 11.5-11.8 to be safe.

Did you try running the secondary spring on the new setting dave recommends?

 

[MOB]

the boost controler and the gauge are junk whats a good replacement???

I like the Hallman Pro RX

2 5/8 liquid filled works well for boost gauge.

You can pull Dave's new map from TY4stroke...you'll need to be logged in to view attachments...Jan17 map is most recent.

 

[sledheadd]

I second the hallman pro rx