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breakfasteatre
06-05-2011, 11:24 AM
Calibrated MAF last night and did some runs this morning

Im running the cobb stage1 intake map, with smoothed out throttle code from msf and upped idle

painful boost cut fuel pump pwnage

http://pic100.picturetrail.com/VOL569/2629802/23812110/397106794.jpg


log from this morning

http://pic100.picturetrail.com/VOL569/2629802/23812110/397106796.jpg

I included the full log because printscreen capabilty cuts off quite a bit

51485147

Fobio
06-05-2011, 11:55 AM
good stuff!

if you're runing the newer maps, there's less of a need to run the smooth throttle stuff, since it's been incorporated into the newer maps.

Screen cap:

1. Freeze top row in Excel.
2. Isolate WOT run (Accel Pedal Pos'n)
3. Highlight rows and columns
4. Print Screen
5. Paste into Paint.

Keep them coming~!

breakfasteatre
06-05-2011, 01:04 PM
Went back out to do a couple more logs and experienced alot of boost cut. I think im going to hold off on anymore WOT runs until i install some internals

Fobio
06-05-2011, 01:13 PM
what mods are you running?

MajesticBlueNTO
06-05-2011, 01:23 PM
Went back out to do a couple more logs and experienced alot of boost cut. I think im going to hold off on anymore WOT runs until i install some internals

good idea. in your first screencap your HPFP shit the bed and gave up and left you with the tank pump pressure. in datalog12 the DI pressure went into the 800s at WOT.

breakfasteatre
06-05-2011, 01:26 PM
Cobb intake and inlet, forge bpv. AP :)

Fobio
06-05-2011, 01:39 PM
when are the internals going in?

-cj-
06-05-2011, 01:43 PM
Did you get your fuel pump replaced at any point? I thought the 07's had a recall for the pump? You shouldn't be having fueling issues with those mods... Actually, let me rephrase... You aren't having the same issue that most people get, where the pump can't keep up and dips into the 1600's or lower... You seem to have a pump that's failing completely. Do you have PTP internals by any chance? Did anyone modify your fuel pump at some point?

I'd actually opt for a full FP rather than just internals... and send yours in as a core swap.

breakfasteatre
06-05-2011, 02:01 PM
When i bought the car, the service advisor over at davewood checked out the cars history and told me everything was in order. He didnt print anything off but said that all recalls were performed. Ill go in and check about the fuel pump specifically. Just after i bought the car, stock, i had boost cut issues in higher gears on the highway.
This is the first ive heard of the pump being recalled, and it makes sense since the pressure is going into the 10s, instead of dropping to like 1500 as you see in other boostcut logs.

Im the second owner, first person was a leasee. A woman in mississauga had the title.
As far as i know the car wasnt modified, but really, thats just a guess.

Car had 66k kms on it when i purchased it.

just creeped the yellowpages.ca and got a phone number, hopefully its her. Shes not home though

MajesticBlueNTO
06-05-2011, 02:17 PM
Cobb intake and inlet, forge bpv. AP :)

5152

check your VIN, see if the TSB applies to it (your symptoms certainly do). if so, unmarry your AP, take it in and see if you can score a new OEM HPFP.

breakfasteatre
07-29-2011, 03:35 PM
HPFP installed wednesday night, did MAF calibration earlier this afternoon and some pulls just now before work
It sucks when south has no cars, north is pretty packed so i could pretty much only do pulls one way

btw, past 2 days ive seen 2 completely unmarked vehicles pulling cars over.

blacked out tahoe, no markings at all, just red/blues in the headlights and tailights
90s buick (wtf) zero markings, red and blue flashers in lights

both vehicles had drivers with no uniform


anyways, back to the logs

http://img.photobucket.com/albums/v608/thugngr4real/7294thgearpull2.jpg

http://img.photobucket.com/albums/v608/thugngr4real/7294thgearpull.jpg


i admit i havent done much reading yet and im posting these up out of shear excitement that i can actually go WOT

comments are appreciated though :)


54775474547854755476

Fobio
07-29-2011, 03:52 PM
log5:

fuel pressure looks good...boost is in control but could use some smoothing. lotsa WGDC left if you want to turn boost up. CL/OL transition seems spot on.

load and mass airflow seems a tad low but inline with your state of tune.

my main concern is your AFR. it's lean for an technically untuned car...you commanding 11.8 already?

the lean spots in your log during WOT...the 12's...will likely have to fixed with a high rpm MAF calc for WOT.

Good luck and keep it going!

breakfasteatre
07-29-2011, 03:55 PM
knew you would be in on this asap :)

i havent touched anything yet so the values you see are based on an untouched stage1 93 octane v102 map

BlueStreak
07-29-2011, 04:03 PM
Did you perform a MAF calibration for the full MAF sensor range (0-5v)? If you're running leaner than commanded, my guess would be that you haven't.

breakfasteatre
07-29-2011, 04:09 PM
I did adjust the whole range

BlueStreak
07-29-2011, 04:32 PM
Had a look at the OTS map, looks like COBB really leaned out the maps as of late.

Your fueling is fine by the looks of it (and so is your MAF as a result).

Fobio
07-29-2011, 07:17 PM
Had a look at the OTS map, looks like COBB really leaned out the maps as of late.

Your fueling is fine by the looks of it (and so is your MAF as a result).

that is quite interesting. the stg2+TMIC car I'm tuning had rich afr's into the mid-10's....

breakfasteatre
11-13-2011, 02:35 PM
Did a few logs this afternoon. Interesting results. I didnt think i would need to recalibrate the MAF after the DP install but it looks like my LTFTs are wonky again

http://img.photobucket.com/albums/v608/thugngr4real/nov13logdyno.jpg

610761066105

Fobio
11-13-2011, 07:47 PM
that's not bad man...here's what your log 2 would look like corrected for baro and temp for 1PM this afternoon. also try using smoothing 3 for more comparable results with the other VD plots posted.

here's a freebie:

https://lh4.googleusercontent.com/-AjomFNQqKBI/TsBlbGy_hYI/AAAAAAAAEjQ/t13pD1cwtgQ/s912/breakfasteatre001.jpg

very nice boost and afr curve... =)

breakfasteatre
11-13-2011, 08:21 PM
thanks for the freebie vincent :)

Although the ltfts arent too crazy, would you suggest re calibrating the MAF?

as well, that was just the v200 shelf stage 2 map. I put the O2 sensor in, flashed and immediatly did some runs

Fobio
11-13-2011, 08:40 PM
thanks for the freebie vincent :)

Although the ltfts arent too crazy, would you suggest re calibrating the MAF?

as well, that was just the v200 shelf stage 2 map. I put the O2 sensor in, flashed and immediatly did some runs

what afr's are you targeting? it seems you're logging 12's, which is way lean for an OTS map, as they usually run rich. if you're commanding OTS AFR's, but logging 12's then yes, calibrate the MAF. The lean-ness is likely one reason you're making good power, usually at the expense of higher EGT's (ie more wear) but it doesn't seem like your car is hurting either. That might be a reason why you've always dyno'd slightly higher than the other guys. Just something to keep in mind...it's usually better to start off on the richer side between 11.5 - 11.8 then lean out when things look fine.

breakfasteatre
11-13-2011, 08:44 PM
ahhh. The odd thing is, in my logs prior to the DP and after MAF calibration, i had consistant -.16 LTFTS on my wideopen logs. These are the first where i had any sort of gravitation away from that.

Fobio
11-13-2011, 08:46 PM
Compare logged and commanded afr's...not just LTFT's.

BlueStreak
11-13-2011, 08:46 PM
WOT logs will always zero out when you're in open loop. You have to compare commanded AFRs with actual AFRs to ensure you have proper fueling.


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BlueStreak
11-13-2011, 08:47 PM
Btw. Badass power band.


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breakfasteatre
11-13-2011, 08:49 PM
MSpeed, helpin a brotha out

breakfasteatre
11-13-2011, 09:04 PM
yeah, targeting 11.5 digressing to 11.1 and logging 12s. MAF time

loki
11-13-2011, 11:23 PM
do you have your knock sensor set past 6700 rpm?

:P

fywdyl
11-14-2011, 09:57 AM
I have a feeling Alex's has a big turbo and nobody knows it.

loki
11-14-2011, 10:08 AM
I have a feeling Alex's has a big turbo and nobody knows it.

not sure about a big turbo, but a reworked BNR turbo the same size as stock maybe?!?

or forged internals?

breakfasteatre
11-14-2011, 12:40 PM
who knows. the car def had a downpipe in it before i bought it. thr aluminum foil was torn to shit

breakfasteatre
11-19-2011, 03:12 PM
smoothing 3 with corrected pressure and temp. Curious about that last log, could that spike be loss of traction? I checked out the logs and boost, load, etc dont seem to spike accordingly

http://img.photobucket.com/albums/v608/thugngr4real/virtualdynoNov19.jpg

612761256126

breakfasteatre
11-19-2011, 05:49 PM
Calibrated the MAF again tonight. AFRs are alot closer to commanded, VDing 300 hp, 350 lb/ft but had to pull up at 6100 rpm due to circumstances. Still a nice power curve and afrs/boost have a nice plateau as well. Now to work back up to 11.8ish afr and that power :)

wgdc isnt maxed out like my last logs.

Fobio
11-20-2011, 11:24 AM
that blip is definitely loss of traction.

keep working to bring that afr inline to go for more power.