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Author Topic: new to, and confused with quarterhorse  (Read 26825 times)
rob342
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« Reply #45 on: February 26, 2016, 12:18:33 pm »

I've attached a 50 mile datalog. this is moping along in light traffic, terrorizing the suburbs, abusing it on the highway, traffic on the highway, etc. -a nice well rounded log, IMO

I have also attached the current tune and a screenshot showing the filters i'm using before making any corrections.

last night before driving home, I set the injector slopes to my original starting point, 19 and 20.5 with a BP of 4.  then I beat the hell out of the car on the ride home. when I analyzed the log, EA's new calculations seemed sane. 18.5, 19.5, and a BP of 3.5.

analyzing my new log, it wants me to set the low slope lower than the high slope. I understand that's a no-no.   

should I leave the injectors alone now and try to adjust it using the MAF curve instead?

the car runs good btw.


* filter.JPG (74.87 KB, 746x502 - viewed 271 times.)
* PORN.bin (56 KB - downloaded 94 times.)
* FEB_26-fifty miles.zip (8962.78 KB - downloaded 124 times.)
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white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
85_GT
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« Reply #46 on: February 26, 2016, 12:28:35 pm »

Don't have time to look closely right now.  One thing, that range for TAR.  Not sure what that's going to leave you if anything.  Go like 0 to 1,  or 0 to 0.5.  Give that a try.
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85GT, Dart Windsor Jr, Crane 2030 equiv. Performer 5.0, 75mm TB, 88mm Slot, 34lbs injectors, 1 5/8" shorties, 5spd converted to 4R70W with Baumann controller, 3.25 9"
A9L running A9P bin via Quarterhorse with LC-1
rob342
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« Reply #47 on: February 26, 2016, 04:38:31 pm »

Don't have time to look closely right now.  One thing, that range for TAR.  Not sure what that's going to leave you if anything.  Go like 0 to 1,  or 0 to 0.5.  Give that a try.


i'm pretty sure nothing changed from that as far as removing entries.

so.. since the A9L2 tune has a default fuel of E10 and i chose to keep that, i have changed the AFR in EA under "fuel delivery" to 14.08 to match E10 in my A9L2. now the injectors it recommends are 18.75H and 18.85L. i made both 18.75 and i'mma see what happens. i also made some very, very minute changes to the MAF curve because i see the same small change recommended over and over every time.
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white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
rob342
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« Reply #48 on: February 28, 2016, 01:10:41 pm »

I have the injector oddball recommendations gone now.

ive been messing with the MAF values in detail.  dividing the wideband AFR (driver side) with the LAMBSE2, and multiplying the result. usually i'm multiplying in the .9 to .98 range ddoing it like this.

last night I did from 1.5 to 2.31v. this morning I did 2.31 to 4.7v.  seems to be far more accurate than using any of the automatic calculations.  I'm finally seeing the numbers on the WB i'd expect to be seeing.

should I turn off anything in my tune when I'm logging this?  I don't really understand if the short term trims are going to problematic or not as far as skewing the data. I assume after I do this a few times there won't really be any significant trims factored in anyways.
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white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
rob342
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« Reply #49 on: February 29, 2016, 09:48:49 am »

this is a pretty crappy datalog from my ride to work. too much traffic to play around this morning.

I made good use of the traffic by lowering my idle to 500rpm so I could adjust the maf curve at the bottom, ie 0.5v to 1v.

can you tell me why the adaptive learning is making my KAMRF2 line get richer as my  drive progressed? this  chart represents 14 miles in traffic. I can see the AFR's stay the same, but the KAMRF's are attempting to get richer.

I have been reducing maf air row by row, as described in the post above this one.

* PORN 2016_Feb_29_07-05-46.zip (3061.59 KB - downloaded 122 times.)

* afr vs lambse2.JPG (121.9 KB, 1366x768 - viewed 231 times.)
Logged

white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
85_GT
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« Reply #50 on: February 29, 2016, 11:59:53 am »

Kinda looks like something made it go lean towards the end.  Like maybe a vacuum leak once things to hot enough, or maybe fuel pressure dropped after pump's been running a while.

For got if I asked, have a y pipe?
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85GT, Dart Windsor Jr, Crane 2030 equiv. Performer 5.0, 75mm TB, 88mm Slot, 34lbs injectors, 1 5/8" shorties, 5spd converted to 4R70W with Baumann controller, 3.25 9"
A9L running A9P bin via Quarterhorse with LC-1
rob342
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« Reply #51 on: February 29, 2016, 01:21:46 pm »

could be FP, could be a vaccum leak i suppose. i'll investigate both. -or could it just be a worn out motor? it is about ready to rebuild. i'm just tuning my old junk first to learn. i have a plethora of parts here

i have no Y pipe. currently the car has stock headers with a mac-prochamber and flowmasters.

no cats, no smog pump, no egr.. i may add high flow cats over the summer as my woman isn't into the exhaust smell.
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white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
85_GT
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« Reply #52 on: February 29, 2016, 03:12:26 pm »

Could be O2s.  Was it you that said they were still original? 

Another thing to try.  I've never ran one, but decipha always recommends running with 1 O2 with a y pipe.  A mac chamber may have a similar effect of confusing left/right banks.
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85GT, Dart Windsor Jr, Crane 2030 equiv. Performer 5.0, 75mm TB, 88mm Slot, 34lbs injectors, 1 5/8" shorties, 5spd converted to 4R70W with Baumann controller, 3.25 9"
A9L running A9P bin via Quarterhorse with LC-1
rob342
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« Reply #53 on: February 29, 2016, 04:27:09 pm »



yes sir. i said "they may be the original ones". i've only had this car a couple years and i have not changed them. i'll add it to the list of things to try, but i don't understand how an o2 could be the issue. the car would have been running rich on my AFR gauge at the end of my datalog.

i just went and picked up lunch. the car definitely ran better this morning. the AFR's looked great my whole drive in to work.  i suspect you were right with the vacuum leak or fuel pressure changing as it heated up.  now that it's cooled, it runs rich. i cleared the fuel trims and it's perfect again. i believe the car always acted like this and i never had the tools to see it before. i would also bet this is how it ran rich enough to kill my first WB o2 in a week.
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white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
95GTspeeddemon
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« Reply #54 on: March 20, 2016, 08:39:59 pm »

Any updates? Btw, moates does a tuning class about 2x a year. Its worth the $ to go if you can take the time off from work. Its an intense 3 days.
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95gt, stock forged 302 shirtblock, canfield 195's, canfield efi intake; efi sheetmetal elbow, xe258 (208/216 .550), 90mm accufab TB, 69mm gt45, 3in cold side, a/a intercooler, water injection, ba5000 maf, 80lb injectors, moates quarterhorse, stock manifold modified & a log manifold, twin 2in up pipes, 60mm wg, 3.5 dp dumped, 14psi, 3.27s, solid bushing rear upper/lower team z suspension, team z tubular k member and A arms, front coil overs with strange 10 way all the way around. TKO600, stock flywheel, ram replacement pressure plate and kevlar/organic disc. 450rwhp 12.39 @ 123.5mph 3400lbs
rob342
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« Reply #55 on: March 21, 2016, 07:58:59 am »

Yea I quit clearing the fuel trims and burned out another wideband.

I ordered a fuel pressure gauge locally to see if pressure was dropping as i drive but they never called to say it was in.

Neat they offer a class, but I never have time off work.  I feel like I'm falling behind if I take a holiday off.

I'm just planning to wait until I bolt on all the performance parts before trying again.  I get the jist of it now, I just don't understand the car making itself run rich evvvvvvery time I drive 20 miles
Logged

white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
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