Getting off the line. Help!

[vortecd]

Get another stock one not worth it at your boost level

Plenty of cars running 20+ with a stock bov.

 

[Demid22]

Plenty of cars running 20+ with a stock bov.

Guess mine just bit the dust. Ordered new one. Will report back once installed and logged

 

[TNREDEYE]

Another 1/8 mile run. This track was less sketchy than the other one I posted. Ill be going back here.

What track is this? I live in mid TN and have been to a lot of tracks and this one isn't familiar to me. It looks very narrow.

 

[Demid22]

What track is this? I live in mid TN and have been to a lot of tracks and this one isn't familiar to me. It looks very narrow.

Cherokee race park

 

[Demid22]

Got the new BPV installed and a log sent to Jon. I didnt see any additional boost on the gauge

 

[jonx96]

Got the new BPV installed and a log sent to Jon. I didnt see any additional boost on the gauge

Did you buy a stock or upgraded one?

 

[Demid22]

Did you buy a stock or upgraded one?

I was told stock replacement would be fine for my boost level

 

[Demid22]

Seems there may be multiple things going on. Forgot to attach the log file to Jons email but i did snap this pic. This wasnt an issue before changing the BPV. Bare in mind i have 1200cc injectors and hhp dual pump kit

 

[Demid22]

I know i know. Not a 1/4 track pull. But until the tracks open again this is the best i can do.

Pressure is dropping off a bit but im uncertain the affect overall.. Still only Netting 16lbs

 

[Speedy!]

I'll peek at the log in a bit but the fuel pressure seems to be a calculated value based on what I've seen and can't be fully trusted. Mike advised me to keep an eye on injector pw for fueling. Yours is a tad elevated. What is the injector DC? You sure both pumps are working?

 

[Demid22]

I'll peek at the log in a bit but the fuel pressure seems to be a calculated value based on what I've seen and can't be fully trusted. Mike advised me to keep an eye on injector pw for fueling. Yours is a tad elevated. What is the injector DC? You sure both pumps are working?

Verify both pumps are working when i get home

 

[Demid22]

ok heres what we know.

I verified both fuel pumps are working simply by unplugging one, car fires up and runs. switch to unplugging the other, car fires up and runes.

When we first tuned the car we didnt have any fuel issues as you can see in the attached. desired psi and actual psi were matching pretty good. if you refer to previous post, now im dropping down to 65psi in some spots. We think because the whole time I had a leaky BPV, we got that fixed and now were pushing more air which is causing the fuel pumps to be over worked.

what I cant seem to wrap my head around is this:

I had 80 psi and commanded 80 psi
now I have 65 at spots and commanded 80

I had 1850 air charge now im around 16-1700

My gauge was showing 18-19 psi of boost
Now im only showing 15-16

But when you look at a log under boost, its showing me getting 18+
so I then figure out how thats calculated. (vcm scanner say MAP-Barometric)
well my MAP - Barometric is 22.5 so now idea how were getting 18?
Additionally it still doesnt show on the gauge (max is 15-16)
I verified with Jon today that I am running all 4 3 bar MAP sensors

this all stems from the much more knowledgeable members stating my time slips reporting a slow time with the provided mods i have therefore I must be down on power. So even if its just a glitch and my dash is reading right but i a making 18-20lbs, than why so slow? lol.

Sorry for the long post, Im sure everyone is fed up with me by now. Im just trying to fix this thing and learn along the way.

PS. Bare in mind the attached log pics are from an earlier tune and log (months ago) the knock has been corrected long since then

 

[DavidKFla]

ok heres what we know.

I verified both fuel pumps are working simply by unplugging one, car fires up and runs. switch to unplugging the other, car fires up and runes.

When we first tuned the car we didnt have any fuel issues as you can see in the attached. desired psi and actual psi were matching pretty good. if you refer to previous post, now im dropping down to 65psi in some spots. We think because the whole time I had a leaky BPV, we got that fixed and now were pushing more air which is causing the fuel pumps to be over worked.

what I cant seem to wrap my head around is this:

I had 80 psi and commanded 80 psi
now I have 65 at spots and commanded 80

I had 1850 air charge now im around 16-1700

My gauge was showing 18-19 psi of boost
Now im only showing 15-16

But when you look at a log under boost, its showing me getting 18+
so I then figure out how thats calculated. (vcm scanner say MAP-Barometric)
well my MAP - Barometric is 22.5 so now idea how were getting 18?
Additionally it still doesnt show on the gauge (max is 15-16)
I verified with Jon today that I am running all 4 3 bar MAP sensors

this all stems from the much more knowledgeable members stating my time slips reporting a slow time with the provided mods i have therefore I must be down on power. So even if its just a glitch and my dash is reading right but i a making 18-20lbs, than why so slow? lol.

Sorry for the long post, Im sure everyone is fed up with me by now. Im just trying to fix this thing and learn along the way.

PS. Bare in mind the attached log pics are from an earlier tune and log (months ago) the knock has been corrected long since then

I must ask why aren't you working through this with your tuner instead of out in the public?

I had all kinds of problems that Jon took the time to straighten out for me.

 

[Demid22]

I must ask why aren't you working through this with your tuner instead of out in the public?

I had all kinds of problems that Jon took the time to straighten out for me.

Because at this point were unsure what's going on with it still reading only 15-16lbs

 

[Jon-MooredPerformanceLLC]

You have picked up air charge and now are running into fueling issues. Your bypass isn’t opening anymore. You can’t compare at this point to running slower because you have certainly picked up air. I will look at one thing with your baro reading. But besides that at the point you are at not you can’t compare your past couple track days. Also take into thought it’s hot in humid where you live now your car will be a few tenths slower just from That if comparing apples to apples.

 

[Demid22]

You have picked up air charge and now are running into fueling issues. Your bypass isn’t opening anymore. You can’t compare at this point to running slower because you have certainly picked up air. I will look at one thing with your baro reading. But besides that at the point you are at not you can’t compare your past couple track days. Also take into thought it’s hot in humid where you live now your car will be a few tenths slower just from That if comparing apples to apples.

Roger that. I will fix the fueling issues before the next track day. Get logs and time slips and see where were at

 

[Demid22]

Went to dyno today. Only made 832whp. Decided to pull blower and inspect gaskets. I have the blower spacers. I see some oil residue(blowby) and im running a catch can. Clearly im down on power. Jow do these gaskets look to you all?

 

[Hickster]

Homey thang I didn't know de ice waz gettin off tha line of coke at 3- am. Yea, llike da bettah of a smoken a bannanaher.

 

[Linda's Hell Cat]

@fumanchu182 What do you think about this problem. It kind of reminds me of problems you had in the beginning of your Hellcat build?

 

[Demid22]

Btw this is with the fueling issues resolved