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 We need to have a serious talk.

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03RedSRT4
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03RedSRT4

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PostSubject: We need to have a serious talk.    Mon Oct 03, 2011 3:54 pm

In assembling these words I do not wish to convey an attitude of High and mighty, and I in no way intend to offend.

I find, in talking to some locals, there seems to be a lack of knowledge about some basics of the motor world. Not that people are uneducated, but rather they are un-informed due to a lack of research on their part. Maybe the importance of research wasn't instilled into them by the tuning community, or maybe they just don't realize the importance of research and obtaining information. IDK.

I am certainly willing to take the initiative to help people out. Keep in mind most of my technical knowledge comes from the SRT community, but the same basic principals apply to the function of a motor and how the cars computer works. The tune and the information fed to the computer are extremely important. The ability to log changes and the effects of those changes is worth it's weight in gold.

You can save a ton of money, and make a ton of power by planning a mod path and making informed decisions. The biggest example of this that comes to mind in the SRT community is BFMIC's (Big front mount intercoolers) You can spend $300 on a BFMIC, on the stock turbo and guess what? You just lost power.

So lets talk about some things. We can start basic with STKR (Short term knock retard) and get advanced as we like. Map Clamps, SAFC's, D-Tec's, cams, turbos, MAP and TIP, or MAF sensors. I can post logs and screen shots to help explain all the pids I have in my PCM. If you understand how the whole thing works, you can be a very effective tuner.

Sorry this post is so much to read. I just want to help.
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jdm95eg
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:03 pm

its cool lot of people dont know i read your post and it will help lots of people. in my part i dont know that much but i can get my way around it but i will like to know more
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RyaMoto
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:04 pm

I read on one of your post your not that good with Spanish, maybe its not that they lack knowledge its just that they know most of the technical terms in another language

Its good to know someone that is willing to help (even the Hondas if I read that correctly)

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jdm95eg
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:10 pm

is true what ryan said but we can learn from both sides
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03RedSRT4
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:12 pm

Thanks guys. The person who inspired me to start this doesn't speak Spanish, he just has bad advice from friends. I am doing my best learning the auto terms. Empaque, manguera, millimetricos, carburador, and aircondicionado to name a few I have had to use. LOL. I am working on it.

I don't have anything against Hondas, I used to have a "90 hatch that was my first car I modified as a kid. I started with a crap motor, then put in a D16Y7. It was from a "97 civic, and was only SOHC (As the nomenclature suggests)

I have spoken with a few honda guys and is seems not all ECU's are programmed to store LTKR (Long Term Knock Retard), but I have yet to see an actual Honda Datalog.
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RyaMoto
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:24 pm

03RedSRT4 wrote:
I started with a crap motor, then put in a D16Y7.

respect
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jdm95eg
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:25 pm

well well i have a question i have on my honda d16z6 engine with a p28 chipped ecu dont now what program is installed but is it recommended or gain any power i just have intake,headers,and no ac pr ps can that chipped be programmed for my mods and run better i heard sohc honda engines wont be able to feel the gain on hp
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RyaMoto
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 4:30 pm

Im running an Automatic ECU on my Manual Civic (which was converted not to long ago) would that effect the performance ? I would run a manual ecu but my car wont start when I plug it in
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03RedSRT4
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 7:26 pm

I am not a Honda expert, so I can't specifically say, however I can elude to an answer. Or at least the path. I am totally down for researching and learning the Honda software parameters.

Jdm95: What chip are you referring to? There are many companies that make chips, and they have their pros and cons. Is the chip installed already? SOHC motors can benifit from adjusted AFR's and ignition timing, as can every engine. IDK the specific AFR that is optimal for your motor, but I assume it is 11.7. Can someone verify? If not I will look it up. Your ECU may have a commanded OLFA (Open Loop Fuel Air) under normal driving conditions that is changed when the ECU sees a certain voltage, indicating the throttle position. When I got WOT my PCM (Doge's name for ECU) changes my OLFA from 14.7 to 10 (In the stock tune), and if the [computer] sees an EGT (Exhaust gas temperature) higher than 1700*F the OLFA dumps down to 9, or even 8 sometimes. This mode of low OLFA is a SUPER RICH mode that Crysler calls it COT, for Cat OverTemp protection. The aditional fuel draws heat from the cylinders with latent heat properties. The more fuel gets sprayed, the cooler the exhaust gas. It's very dramatic for performance, and I have COT disabled in my tune. Does your chip allow you to adjust timing and fuel, or does it have a preprogrammed setting? Do you have a Wideband?

-----------

Rya,
Why doesn't the car start with the manual ECU? Does it first need the VIN programmed into the computer? Some cars are designed this way. When I change PCM's I have to have a company called Flight Systems program my VIN first. If this is not the case, was the wiring harness pinned the same? Your computer will most definetly need to adjust fuel and air for load, barometric pressure, charge temperature, and ambient temperature. If the ECU does not have the gearing programmed, then the interpolation maps for these, and more, parameters may not be optimal for performance. Do you run rich in lower RPM's? Have you datalogged it? The datalog will speak volumes for the isolation of conditions in your tune. A professional tuner (With a licence) can read the tune and compair it against the factory settings. This would tell you what's different from the Auto to the Manual trans ECU's.

Does this help? I know I don't have the solid answer, but it's a great start IMO.
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03RedSRT4
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 7:35 pm

check out ---> moates.net/

BETTER ONE!! ----> superhonda.com/forum/f99/honda-ecu-hacking-editing-windows-programs-uberdata-crome-etc-192892/
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03RedSRT4
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 8:19 pm

To elaborate on the fuel post:

14.7 is the AFR where the optimal cumbustion occurs for normal pump gas.
A wideband reads lambada, and converts the number.

AFR values are a mathematical function of Lambda multiplied by the stoich value of the fuel used. (Stoichometric)

Example: Stoich for gasoline = 14.7:1 AFR, or 1.0 Lambda
Because 14.7 x 1.0 = 14.7

A Lambda value of .80 would be: .80 x 14.7 = 11.76 AFR

So, if you make great safe power at .80 Lambda (or 11.76 AFR) on gasoline, you'll most likely make the same great and safe power using E85 at the same lambda value, thus resulting in the same AFR value on a gasoline wideband.

Rich AFR's are lower numbers. The stock tune my car came with has a target AFR of 10.0 at WOT. This is to cool the chambers, and prevent KR (Knock retard) I "pulled" fuel to achieve an AFR or ~11.7 on pump gas. Leaner mixes will result in higher cumbustion temperatures, and higher EGT's. This will result in KR at some point, and rob you of power. Richer AFR's, like 10.0 and 11.0 will lose power, but have cooler temperatures. While safer to run slightly rich, you are losing power. This is where precision comes into the tuning world. We want consistencey. You can run increased timing with a richer AFR', but you are still losing power. The optimal place to be is the balance between the ammount of timing advance you can run, and the leanest AFR you can get without KR. STKR and LTKR is another point all together, and E85 rules are similar, with very agressive differances. I won't get into the E85 unless someone wants me to. That would be another thread IMO.
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 9:13 pm

nice info bro my chip i dont know what kind it is i trade it and its chip i dont know if it jas a wideband or what program it has
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03RedSRT4
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 9:50 pm

A wideband is a gauge, normally mounted on the dash. You will need to know what has been done the the ECU, and the details on the chip.

I highly prefer flash tuners, but I am unfamiliar with the Honda market. I know Diablosport and SCT don't make any tuners for you, which is highly unfortunate.
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 10:44 pm

then no i.dont have a wideband and unfortunatly i cant get the info on what they did to the ecu
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03RedSRT4
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PostSubject: Re: We need to have a serious talk.    Mon Oct 03, 2011 11:28 pm

You can hit some other forums, that are Honda specific and see how to tell what the modifications are. Terminals will be soldered, and things will be visible.
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