** CHIPPED ECU TUNING JOURNAL **

[MRX]

u can ask here, i don't hide anything.

[MRX]

ok for the 272 map...ppl had always used the stock ecu with the 272 cam because they had no other choice really so with that being stated a couple of times i felt safe using my stock f22a map on it. Since the power curve is said to move into the 3500-7000 rpm area it of course takes power away from the powerband below that point. I specifically took a point or 2 of fuel out of the idle to about 1400rpm in the high vac section to mid vac. Going back to the fact that the stock ecu works decently on the cam i actually added a VERY small amount of fuel past 2000rpm from high vac to mid-low vac (about 1 or 2 points). Timing is much the same except at the low vac-WOT section but i did retard it slightly in the high vac section by up to 2 degrees. I made a couple of very small adjustments in a couple of timing sections but not enough for anyone to notice(smoothing). After that i got decently aggressive from 3500rpm for the WOT section. I made a small dip in timing at about 4500rpm-4800rpm to decrease the chance of detonation at peak torque. Fuel was steadily being added and after peak tq(estimated) i didn't let the fuel curve fall off as sharply as the stock map does(7-10%...don't remember specifically). I really hope someone will actually dyno that cam! Till then i have to make the map based on what i hear and not what i see. I think the increased fuel in WOT is what Exrated is feeling. That combined with a little agressive timing makes for decent power. The stock map simply gets to 4500rpm and falls on its face.

The f20a map was a little different. I've only ever tuned that while it was boosted unfortunately. My main concern with that map was ridding it of any and all stutters. The timing is conservative for that sole reason. The f20 map i sent you wasn't meant to be aggressive, i was only trying to get close to and or match the stock ecu for that engine. I wanted you to use that as a base and make it agressive for yourself. I'm still waiting on someone to present a stockish or n/a f20a to me but no one has. And because of the increased compression that motor is alot more likely to detonate if i make it aggressive without being there. I've sent the map out to like 3 ppl and none of you have even tested it yet! lol

Hope that explains my reasoning. Basically i need less talk and more action from you f20 guys. Till then everything is just a calculated guess

[MRX]

nah, i didn't take it as an insult. And i should be thanking you, you were part of the equation of the fire started under my ass to say "I can do this"

[HondaFan81]

To keep people informed of CB7 progression...

** Note: Click the links in my signature for details on my project modifications & progress **


"Red" - 91 Accord DX 5spd

- Delta 272 regrind
- Mods to intake airflow
- F22a1 street P&P headwork
- Mods to exhaust airflow
- stock F22a1 block

Plans:

- Finish project before North Carolina Spring Meet April 21-23
- Red project install starting this weekend Mar. 24-26 and going until it's complete
- street tune with MRX chipped P06 ECU & uberdata with stock ignition & cam timing
- dyno tune and adjust ignition and cam timing
- fine street tune with MRX @ NC meet

"White" - 91 Accord EX 5spd

- Delta 272 regrind (yes, I'll get one for this to minimize variables when first tuning)
- Significant mods to intake airflow
- Significant F22ax headwork
- Significant mods exhaust airflow
- 12:1 compression ratio modified F22ax block

Plans:

- Engine built, installed, broken-in and street tuned before first snow 2006 (Michigan)

[ZigenBallZ]

just a pic for fun...



I ran out of labels...

[MRX]

lol, thats priceless...and marketable at the same time

[HondaFan81]

F22ax Delta 272 & other mods - Red Accord Project Update:

Setup:

- Zeitronix wideband
- Uberdata 1.7 rev2.2
- Moates chip burner
- MRX chipped P06 ECU
- have 2 .bins/maps for my setup (#1 and #2 I'll call them)

4/10/06:

- stock PT3 ECU will start engine, but stall out immediately

- #1 Map:

* fuel psi @ 43 psi WOT (38 psi w/hose connected)
* IABs connect direct from diaphragm to IM port via vacuum hose
* ignition timing approx. 15 deg BTDC (not a smooth idle)
* base ignition set at 16.5 deg BTDC, needs to be 15 deg
* injector size set at 240 cc/min (correct)
* idles rich
* IACV is the only reason it holds idle, when disconnected engine stalls out
* can not set base idle because of idle issue listed above
* when doing semi-spirited run, get a CEL # 4 (crank position sensor)...have to diagnose ECU or dizzy related
* city crusing in 1st or 2nd gear, AFRs are 14's
* map #1 pulls better in city driving, then map #2
* when stomp throttle (WOT) in 3rd gear around 2000 RPM, AFR hits 20's, then richens up into high 10s/low 11s & hits 13s at about 5800+ RPM

- #2 Map:

* fuel psi @ 43 psi WOT (38 psi w/hose connected)
* IABs connect direct from diaphragm to IM port via vacuum hose
* ignition timing approx. 15 deg BTDC (not a smooth idle)
* base ignition set at 16.5 deg BTDC, needs to be 15 deg
* injector size set at 345 cc/min (incorrect)
* idles rich
* IACV is the only reason it holds idle, when disconnected engine stalls out
* can not set base idle because of idle issue listed above
* when doing semi-spirited run, get a CEL # 4 (crank position sensor)...have to diagnose ECU or dizzy related
* map #1 pulls better in city driving, then map #2
* when stomp throttle (WOT) in 3rd gear around 2000 RPM, AFR hits 15-16's, then richens up into low 11s & hits 13s at about 4700+ RPM

Current Plan of Attack:

- receive new Moates chip burner Thursday, April 13th (original defective)
- resolve idle issue
- after idle issue resolved, set base idle
- after base idle, set ignition timing to 15 BTDC (steady)
- set cam timing back to 0 deg & see how it idles
- get a decent street tune throughout the RPM range
- dyno setup, dial in cam & ignition timing
- final street tune at NC meet with MRX

[westsideaccord]

I have this eprom programmer, http://cgi.ebay.ca/Dual-Power-Willem...QQcmdZViewItem ,
but no cd or software! How do I use it? If anyone knows please explain!!! I went to the willem site but it is a mess to me!! Thanks!

[Dv8]

Yes, teach him, so we can tune my car .... AND HIS!!!!

[westsideaccord]

Hehe, I think ive found it, but when you flash the chip does the arrow go toward the lever or away from? And is it the same on the p06? MRX, I have the dual power, and dont know what jumper or whatever to move or solder in ALSO High C if you know please help me! Thanks alot guys!
Also the program only has 29f256 not 29c256! is this a prob?

[MRX]

Hehe, I think ive found it, but when you flash the chip does the arrow go toward the lever or away from? And is it the same on the p06? MRX, I have the dual power, and dont know what jumper or whatever to move or solder in ALSO High C if you know please help me! Thanks alot guys!
Also the program only has 29f256 not 29c256! is this a prob?

http://uberdata.pgmfi.org/forum/inde...;threadid=2588

i don't have a picture of the jumper in place but if your looking at the lever as the top then #1 is the top left. Go down three places on the left side. And the other side goes 2 spaces down on the right side. So one on the left side should be touching the chips leg and the right side should be one space above the chips leg

[westsideaccord]

Thanks again MRX this was the perfect link! I am understanding stuff more and more! LOL

[MRX]

I'm gonna need volunteers shortly. I'm slowly making the conversion to Crome because Uberdata is dead now. First ppl that come to mind are my TX boys backfire and Iamanonymous.

If you have a wideband and a chip burner and are willing to work with me so we can further progress the accord/prelude map development just speak up. First step is getting the 203 p30/p72 code to run fine on a p06 ecu since thats the normal ecu for us. I have some hardware issues on my car that prevent me from accurately datalogging or else I'd probably do it on the sly.

I have gotten crome to work but it was only if i was directly opening my current uber bin with it. If i do that i can't edit the rev limits, fuel multipliers, or add boost columns to the map (although they are already there technically).

[Accord R33]

I'm gonna need volunteers shortly. I'm slowly making the conversion to Crome because Uberdata is dead now. First ppl that come to mind are my TX boys backfire and Iamanonymous.

If you have a wideband and a chip burner and are willing to work with me so we can further progress the accord/prelude map development just speak up. First step is getting the 203 p30/p72 code to run fine on a p06 ecu since thats the normal ecu for us. I have some hardware issues on my car that prevent me from accurately datalogging or else I'd probably do it on the sly.

I have gotten crome to work but it was only if i was directly opening my current uber bin with it. If i do that i can't edit the rev limits, fuel multipliers, or add boost columns to the map (although they are already there technically).

what exactly does crome have over uberdata? im going to be writing a Honda rom editor soon (Nissan one is almost done). im wondering what kind of things Crome has to offer...

[MRX]

Right now not much but the coding is still being developed. There are still things in uber that we're not even sure work or work correctly. And since Crome is still going strong its kind of a natural move. I have a dream