Guess what (more issues) argghhh!!!

[DR SCHNITZEL]

Please help guys. (Blitzboy)

1) My profec b is not showing any fairy lights and it never has. the power comes on but thats about it. Does this mean its knackered or the jumpers are set wrong. im sure they are set right

2) Secondly. My wastegate will not open, i boosted past 1.5 bar today!!!!!. I thought i would unscrew the cap at the end all the way to see if that worked but it didnt. to check spring pressure I fitted the top port direct to boost and plugged the side. that didnt work either. still boosted past 1.5 (keeping a close eye on the gauge and running super rich still)

3) Also the single tub has made a rasping sound since fitting which i thought was normal. today while mapping the rasp got much much worse and the tub would not spool properly (it was spooling with 1/3rd of the power with 3 times the noise/rasp.       )

this is a headache.

any ideas?

[DR SCHNITZEL]

My profec b i got from ebay is knackered. also from japan. (wont get my cash back here) and i wont be driving my car again until i have boost control.
 
Boost controller anybody?

[BlitzBoy]

you can discard the boost controller for the time being and connect the vacuum\\boost lines direct to the wastegate, and use the wastegate spring as boost control, what size spring is it 0.7 or 0.8 or 1 bar?

[DR SCHNITZEL]

Not sure but the maps good for 1.2 so i should be ok and i have not leaned last 2 rows of the map out.
 
So i run the boost from after the tub to the sideport and plug the top port lines?
 
I will try this tonight.
 
im getting 9 afrs at that part of my map anyway as a safety net. Cheers blitz (again) i owe you a pint

[BlitzBoy]

depends on the make wastegate but I believe so, you will soon know, if you get a max boost of 0.7-0.8 you know you have done it correctly

[shaunwil]

I thought I had killed mine but all I had done was switched it off. I think if you press both the left bottons for a couple of seconds it may come back to life.

Shaun

[shaunwil]

Just had a quick look and its press the select button for a few seconds to turn it off and on !

http://video.aol.fr/video-detail/greddy-profec-b-spec-ii-psi-to-kpa-mode-change/2088533997/?icid=VIDURV12

Shaun

[nikp]

If the wastegate is not opening i would suspect you have the vacuum lines attached the right way. As blitz says, ditch the boost controller for now, and fit a single boost/vacuum line to the wastegate to the appropriate port.

[DR SCHNITZEL]

Done. The wastgate opens about .6 to .8 bar (!). i have fiddled about with the jumpers and now i have full boost control (im sure i set them correctly, but nay). low is 1.0 and high 1.2 for now.

Is this as high as my setup will go? im happy with the pull of it. I am getting a little boost creep and some oscillation in 4th. Any help with fine tuning?.

I have my in and out both plumbed in on the turbo elbow on the profec i heard some move the in to somewhere past the IC. but where mine is gets the most response.

[BlitzBoy]

I wouldnt go more then 1.2 BAR on pump fuel, if you want to run more then recommend Water injection to keep DET away, but at 1 BAR it should be plenty fast.
To help with boost creep you can adjust the GAIN settings on the Boost controller, lower the percentage by 2-3 percent.
At the 1 BAR line on the Map what afrs are you getting? go far 11:1 afr this will give some more power, as low 10s will be robbing power

[DR SCHNITZEL]

all sorted boys. running .8 bar now but its still oscillating like it was on the twins. I have changed absolutely everything in the bay apart from the map sensor.

[DR SCHNITZEL]

Im back at 1.1 bar max now as the map sensor only goes to that anyways. my knock hasnt gone past 35. As you said blitz the timing is conservative (thats how its staying) i just need to get rid of this boost holding problem. It feels like when the car is holding full boost the engine is making a vibration like something is out of balance. (im going to have to contact the engine builders again)  i have boost control. the only problem is after spending 6 months and 3500 quid making my car single tub i still have the same oscillating boost problem i had on the twins on the new engine which cost 3000 quid (which was partly why i brought forward it single in the first place). the only thing not changed in the bay is the map sensor!!! and my last engine never had this problem either. im not sure about diagnosing problems but im really starting to think that there is something fundamentally wrong with the build.

[BlitzBoy]

Could be the engine mounts or sometimes if the "GAIN" on the boost controller is too aggressive it could cause it to spike and dip giving the same kind of symptoms

[DR SCHNITZEL]

ah right, i am running the bc as sharp as it will go, anything less and it creeps. ill have a look at this tonight.
 
saw you run at rotorstock didnt really speak to anyone though as i was at the bar most of the day. alot of cerbera eating rxs there.