AFAccord

Well gents, after trying all the eBay resistors, "performance chips", and even the JET V-Force module, I have finally purchased the Jones Electronics Technologies (commonly known as JET) ECU Reprogram package.

*This was performed on a 99 Honda Accord 2.3L 4cyl Coupe 5-speed with light mods (listed at bottom).

Once I found my Accord's well hidden, hard to access ECU, I packaged it in the box provided by JET and shipped it off at 2pm on a Tuesday afternoon via USPS Express Mail. It made it from South Carolina to Cali by 8am the next morning! JET flashed it, and loaded their custom programs and maps into my ECU, and over-nighted it back to me at no extra cost. I received my ECU from DHL Deliveries at 10:30am Thursday morning, and quickly installed it. After pluging the 3 ODB-II connectors in, I started the car and let it idle for 2 minutes. Then I cut the car off for a few seconds, and started it back up. After a short drive, watching not to go over 3K rpms, I cut the car off once again to save all of its programs. I've been driving it since that thursday (now Saturday) and the car seems to behave better and better the more I drive it. JET has made a believer out of me, and I have the track results below to show why...

BEFORE...

0-60mph---------7.62sec

60ft---------------2.42sec

330ft-------------6.71sec

1/8th mile ------10.26 @ 70.00mph

1000ft-----------13.35sec

1/4 mile --------15.94 @ 86.99mph


AFTER...


0-60mph---------6.94sec

60ft---------------2.42sec**

330ft-------------6.55sec

1/8th mile ------9.92 @ 74.4mph

1000ft-----------12.81sec

1/4 mile --------15.23 @ 94.7mph


** My 60ft time remained the same due to wheel spin incurred by the newly found power.

The actual numbers don't show much of a difference, and I don't have any dyno results yet, but for a $220 ECU package, the gains are undeniable. I am VERY pleased with the results and LOVE my new low-end torque when I'm driving around town.

Here's a list of the car's setup when the track runs were performed. Please remember this list is very basic, and may leave out several not-so-important parts.


1999 Honda Accord LX 2Dr 4cyl 5-speed
- AEM Cool Air Intake
- eBay ceramic 4-2-1 header
- Custom 2.5" exhaust from header back
- Random Technology High Flow Cat
- Nology Hotwires
- Denso Iridium Plugs
- 17" ICW Racing Wheels
- 225/45/17 Pirelli PZero Nero tires 34psi Front / 39 psi Rear
- JET ECU Reprogram Package
- DC Sports Short Shift adaptor
- 93 Octane Gas
- 92 degrees at the Track with 68% humidity
- AEM Tru-Power Pulleys


If you have any questions, comments, or concerns, please post them here to share so that others may also learn.


Modified by AFAccord at 3:09 AM 7/24/2005

momstaxi

thats a pretty good improvement, i doubt an intake, exhaust and header would improve 1/4mile times that much...so for 220 thats pretty good deal,

goowakjai

good job man, not only did u give us ur thoughts on da product u went out and tested it and gave us numbers...

F23Coupe

I didn't know that bolt-ons modded F23 manuals get same 1/4 mile times as the 6th gen. J30 V6 Accords. So what if you need to disconnect the battery or reset the ECU (maybe to clear codes)? Does it revert to the programming done by Jet or Honda stock?

v4lu3s

what was weather like on the baseline at the track compared to the time a the track with teh chip?

f22pwrdaccord

b_ron007

sweet.....ur a first i ever heard about getting the F23 ecu chipped.

goowakjai

wut other conmpanys out there make a chip for us...i know neuspeed does ECU reflashing, do they do it for our F22s also? wut about that venom module thing, any of u heard good things bout it?(cuz i heard was shirrty stuff bout it)..but im thinking bout chipping my car also, just wunna kno my options

Broken Gearbox

so is this the same company that makes the JET V-Force module?

<- confused.

The_Todd

Great thread...glad to see you got results and hey, for 220 bucks that is a decent improvement over stock times.

Work on that wheel spin and see yourself get into high 14's .

AFAccord

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F23Coupe &raquo;</TD></TR><TR><TD CLASS="quote">I didn't know that bolt-ons modded F23 manuals get same 1/4 mile times as the 6th gen. J30 V6 Accords. So what if you need to disconnect the battery or reset the ECU (maybe to clear codes)? Does it revert to the programming done by Jet or Honda stock?</TD></TR></TABLE>

The 6th gen manual F23 has always been close to the J30 because it's an auto. Resetting the ECU doesn't lose JET's programming. JET modifies the stock ROM programming, basically telling the ECU that it when it builds the ignition/fuel/air maps and tables, it should go for best performance, while maintaining fuel economy and emissions standards. Resetting the ECU only erases these maps the ECU has built while you were driving.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">what was weather like on the baseline at the track compared to the time a the track with teh chip?</TD></TR></TABLE>

Weather was nearly the same. It was low 90's, 60-80% humidity, and clear both days. South Carolina weather always happens in patterns, so it was pretty easy to get close conditions.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by goowakjai &raquo;</TD></TR><TR><TD CLASS="quote">wut other conmpanys out there make a chip for us...i know neuspeed does ECU reflashing, do they do it for our F22s also? wut about that venom module thing, any of u heard good things bout it?(cuz i heard was shirrty stuff bout it)..but im thinking bout chipping my car also, just wunna kno my options</TD></TR></TABLE>


The only real thing I've heard about that makes any difference is the Venom 400 module. It only modifies the signals sent to the ECU which isin't nearly as effective unless your ECU is already programmed. In either case, I haven't found anywhere that says the Venom PROM is available for an Accord.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2.2L &raquo;</TD></TR><TR><TD CLASS="quote">so is this the same company that makes the JET V-Force module?

&lt;- confused. </TD></TR></TABLE>

Sure is. I already have the JET V-Force module installed, but don't know if this will act the same way as the Venom, when used together with the programmed ECU. I'll call JET today and ask, then I will let u know.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .ken &raquo;</TD></TR><TR><TD CLASS="quote">Great thread...glad to see you got results and hey, for 220 bucks that is a decent improvement over stock times.

Work on that wheel spin and see yourself get into high 14's .

</TD></TR></TABLE>


Also, I'm not one to remove creature comforts for speed. I don't run sub woofers anymore because of the weight, though I still have a killer audio setup. I do clean up the car to run it, but I do leave my essentials in it, including the spare, jack, and a small toolbox (20-30lbs). I'm sure I can break 14's if I manage the wheel spin and lose the toolbox. I'm planning on an all motor setup, and minus a few details, i've only completed the bolt-ons. Next up is TB bore, P/P head and Intake Mani, valve job, Cam, then higher compression pistons, rods, valve springs, retainers, probably in that order. I have no idea where I'd be at that point, but I'm hoping to reach 14.1s - 14.0 as a minimum.

AFAccord

A couple more notes...

This weekend I filled up on 93 and went up to NC to raft. The terrain was very hilly and windy going up I-40, and I drove much more spirited than I should have, especially with 4 people in the car. The 321 miles round trip used about 10.8 gallons of gas. This comes out to a healthy 29.7mpg! I'm very pleased to get that sort of mileage and still run a low 15sec quarter.

Understanding I love my V-8's also, I'm a BIG fan of torque. The nicest thing I noticed about the new programming, is the car seems to pull just as hard at 1500-3K rpms as it does at 4-5K, though there's a definate pickup after 5K. It's much more fun being able to pick up quick off a light around town without pushing over 3000 rpms.

AFAccord

Update...

Talked to rep at Jones Elec. Technologies. He said that running the V-Force module along with the ECU Reprogram was not a good idea since it could advance the timing too much. So as of now, the V-Force module is for sale!

honda_kid42

thats pretty impressive....

philadd

Great thread, and many thanks for posting the results!

I do have a couple trivial questions though.

1. After the reprogramming, is it required to run 91-93 octane? I'm assuming so, but I just thought I'd ask since F23's typically run better (and w/ better mileage) on 87 rather than 93.

2. When you sent your ECU, did you also send a list of your current mods, or was that not required? I was browsing their website and read that you're supposed to, but I'm a little confused after the way you described the modifications to the programming.

AFAccord

Thanks man. About the octane, this taken word for word from papers included in the kit....

"Modified fuel and ignition curves from 1500 rpm to WOT. Aggressive ignition advance curve in the JET program requires the use of 89 octane gasoline, 91 or better recommended for best gains."

So yeah... after seeing the results, along with the gas mileage, I have no problem fillin her up with 91 or 93 every tank.


As for your second question, the package comes with various papers, including an information form. This form lets you document shipping addresses, requested areas for improvement, and 10 lines for listing all your mods. All of these should be motor-related of course, though I'm sure JET receives these lists with body kits, wheels, altezzas, and other useless things all the time. lol When you start your car up after resetting the ECU, the Read-Only-Memory (ROM) still knows what it is, and what it needs to do. Just like the non-erasable BIOS in a personal computer. It's job then is to use what it knows, along with what the vehicles sensors tell it, to make the fuel maps, and ignition curves to achieve the desired running conditions. These are your temporary variables, which are stored in erasable memory, and upon power loss, reset. What JET does is reprogram the permanent ROM, giving the ECU a new objective. Performance.

To provide a simple picture, think of this...

The stock ECU programming - You turn the car on, the ECU says "I am a standard computer for a honda accord. I see a restrictive exhaust, to help me make moderate torque. I feel standard parts throughout, and I should use these parts to be efficient, clean running, and make just enough power to suit the average driver. Here is the best way to do that..."

After JET gets ahold of the ECU - You turn the car on, the ECU says "Well Howdy! I am big and buff and I live to go fast! I see a free flowing exhaust that I will use to help my top end power. I have a built ignition to deliver a powerful spark just when I need it, helping my mid-range torque. I have a new cam, that I will engage later, to put out the most power possible. Uh-oh, I'm still in Cali, so I still must control my emissions. All these parts I will take full advantage of to make every drive a spirited one, and here's how I am going to do it..."

-Here's what I am (an ECU)
-Here's what I need to do (Perform/Be economic)
-This is what i have (stock parts/performance parts)
-Here's how I'm going to accomplish this (fuel maps, ignition curves) &lt;--Temporary things, re-learned each time the ECU is reset.

This is why I was so specific once I first installed it. I gave it time to get sensor readings and make a few maps and tables from the results it is given by the new mods.

Did that clarify any? Lemme know if I missed the point.

mac_24_seven

iTrader: (1)

very cool.
its a shame though, that you didnt dyno b4 so you can see how much diff in hp/tq it made.
but i did find this..


http://www.jetchip.com/pdf/dyno/honda/2.3L.pdf

http://www.jetchip.com/pdf/dyn...L.pdf

i guess we can assume it will do the same for our f22's?

philadd

No, you did not miss the point. When it comes to aftermarket tuning, my knowledge is somewhat limited. Originally, I was under the impression that the fuel maps were more set in stone, similar to say, Hondata or other standalones, where sensor inputs do not play as large a role as with our stock ECUs. (Then again, I could be wrong about Hondata, etc. as well... Anyway.)

Your explanation of the reprogramming clarified things very well. Thank you.

Beach Accord

i would like to see dyno plots.

AFAccord

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Beach Accord &raquo;</TD></TR><TR><TD CLASS="quote"> i would like to see dyno plots.
</TD></TR></TABLE>

Donations anyone??

http://www.afaccord.com/donate.htm


Modified by AFAccord at 9:02 PM 7/25/2005


Modified by AFAccord at 9:03 PM 7/25/2005


Modified by AFAccord at 9:03 PM 7/25/2005

goowakjai

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AFAccord &raquo;</TD></TR><TR><TD CLASS="quote">Thanks man. About the octane, this taken word for word from papers included in the kit....

"Modified fuel and ignition curves from 1500 rpm to WOT. Aggressive ignition advance curve in the JET program requires the use of 89 octane gasoline, 91 or better recommended for best gains."

So yeah... after seeing the results, along with the gas mileage, I have no problem fillin her up with 91 or 93 every tank.


As for your second question, the package comes with various papers, including an information form. This form lets you document shipping addresses, requested areas for improvement, and 10 lines for listing all your mods. All of these should be motor-related of course, though I'm sure JET receives these lists with body kits, wheels, altezzas, and other useless things all the time. lol When you start your car up after resetting the ECU, the Read-Only-Memory (ROM) still knows what it is, and what it needs to do. Just like the non-erasable BIOS in a personal computer. It's job then is to use what it knows, along with what the vehicles sensors tell it, to make the fuel maps, and ignition curves to achieve the desired running conditions. These are your temporary variables, which are stored in erasable memory, and upon power loss, reset. What JET does is reprogram the permanent ROM, giving the ECU a new objective. Performance.

To provide a simple picture, think of this...

The stock ECU programming - You turn the car on, the ECU says "I am a standard computer for a honda accord. I see a restrictive exhaust, to help me make moderate torque. I feel standard parts throughout, and I should use these parts to be efficient, clean running, and make just enough power to suit the average driver. Here is the best way to do that..."

After JET gets ahold of the ECU - You turn the car on, the ECU says "Well Howdy! I am big and buff and I live to go fast! I see a free flowing exhaust that I will use to help my top end power. I have a built ignition to deliver a powerful spark just when I need it, helping my mid-range torque. I have a new cam, that I will engage later, to put out the most power possible. Uh-oh, I'm still in Cali, so I still must control my emissions. All these parts I will take full advantage of to make every drive a spirited one, and here's how I am going to do it..."

-Here's what I am (an ECU)
-Here's what I need to do (Perform/Be economic)
-This is what i have (stock parts/performance parts)
-Here's how I'm going to accomplish this (fuel maps, ignition curves) &lt;--Temporary things, re-learned each time the ECU is reset.

This is why I was so specific once I first installed it. I gave it time to get sensor readings and make a few maps and tables from the results it is given by the new mods.

Did that clarify any? Lemme know if I missed the point. </TD></TR></TABLE>

soo...r u saying that it will learn and teach itself to run msot effiecently with the upgraded parts we have installed??...if so then isnt it not neccesary to tell them wut mods u have when u send it in?..and if it does teach it self does dat mean wheneve ru get a new engine mod all u have to do is reset ECU and it will make itself most efficent????...so if wut im thinking wut ur telling is correct doesnt it make the standalone units seem like a wate of time since we have to tune it ourselves ot amke it run most efficently with our mods?


EDIT:aftter reading wut i wrote, it almost sounds like im questioning his knowledge...jhust wunna say im not, im just a little confused and wants some answers

AFAccord

The ECU DOES infact "learn" the most efficient maps and curves, but JET changes what the ECU would consider "efficient." Honda might say efficient is best gas mileage with good midrange power, while YOU migh say efficient is good gas mileage with great top-end power.

The JET ECU Recalibration kit is intended as a last modification to "dial-in" all of your upgrades. It's not going to hurt you to install some new mods, so long as you don't drastically change your setup. JET just wants to know if you have a cam they need to tune your timing for, or forced induction, so they retard your ignition, not advance it. Like I said earlier, many parts are going to be irrelivent, even some motor mods. They just need to know what you have, to know what level of modification you have, and to watch out for certain parts that would require specific fuel or ignition changes. I didn't mean to be so literal when I mentioned individual parts such as a header or intake. For instance, an underdrive pulley kit adds to performance, but you can't tune for that, where as a cam might require timing advance with more fuel. I dont' know exactly what they do for each part, but I'm sure if you give them a call they'll be happy to answer those kinds of questions. Hope this helps.

urbanlegend21

ummmmm, sounds like just another chip


you DO NOT need to buy a chip to effectilvely advance/retard your timing for modifications


you DO need to dyno tune a car when adjusting fuel maps, period

I would love to see your fuel mapping

do they give you any info on what exactly they have done specifically to your car besides this mumbo jumbo you have fed us?

AFAccord

hmmmmmm, it IS just another chip.

My intent by posting this info was to let people with limited access to dyno equipment, limited knowledge, and limited funds such as myself, know that they can effectively gain power and improve their times with a relatively simple and inexpensive mod. I have given the only numbers that I can obtain at this time to show the effectiveness of this chip and what it has done for me. Maybe you could have benefitted others by sharing your wealth of knowledge on this topic at an earlier point to help those who have questions about this garrulous "mumbo jumbo" I have so wrongly force fed them.

I would LOVE to show you my fuel mapping. Maybe you could enlighten me on where I need to go and what I need to do to provide this data to you? I would gladly use my hard earned leave and travel up to 400 miles if it meant I could better inform those interested, and further satisfy your insatiable desire to complicate other's quest for knowledge. Maybe you could give us the good stuff. Answer our questions from your knowledge and experience instead of answering an earnest question with another demeaning question.

I honestly believe you would better benefit this forum with a more sincere, helpful attitude.

JDM.Accord

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AFAccord &raquo;</TD></TR><TR><TD CLASS="quote">
I honestly believe you would better benefit this forum with a more sincere, helpful attitude.</TD></TR></TABLE>

Agreed