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Old December 13th, 2003, 12:54 AM   #1
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hondata under development?

There's been some talk about vafc adjusting the fuel maps. I was just wondering if hondata is going to do a reflash on our ecus like the rsx. My friends rsx has hondata and it lowered the vtec to 5200 (from 6200) and increased the rev limit to 8600 (from 7900). He pulls soooo much harder now than he used to. So does anyone know if hondata is working on our motors?
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Old December 13th, 2003, 01:41 AM   #2
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Hondata has stated that they will not touch the J-series V6's. They're commited pretty much exclusively to the 4-bangers.
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Old December 13th, 2003, 08:00 AM   #3
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Old December 13th, 2003, 09:28 AM   #4
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There is no reason it has to be Hondata. With the right tools and knowledge anyone can update the PCM code.

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Last edited by 99%StockAV6; December 13th, 2003 at 09:35 AM..
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Old December 13th, 2003, 12:07 PM   #5
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I wish Hondata made a reflash for us as well...
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Old December 13th, 2003, 12:12 PM   #6
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i wonder if they will have something for the i4 accord....
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Old December 13th, 2003, 12:45 PM   #7
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Quote:
Originally posted by xjdMb16a2six on December 13th, 2003 at 02:12 PM

i wonder if they will have something for the i4 accord....
I don't think they do. Even though the K24 isn't that much different from the K20 in the Si and RSX.

Here is there website: http://www.hondata.com/

IMO they are making a big mistake in not making one for the 7th gen AV6 .



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Old December 13th, 2003, 04:52 PM   #8
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Old December 13th, 2003, 04:58 PM   #9
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where is the ECU located in the 7th gen cars?

I'm in contact with someone who says there may be a K24 hondata application, but it depends on the ECU markings.
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Old December 14th, 2003, 09:20 AM   #10
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So there's no Vafc or what not, that can raise the rev limit on the V-6?
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Old December 14th, 2003, 09:29 AM   #11
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People here have gotten the V-AFC to work.

I don't think you should to raise the rev limit. Based on the damage people have done to their engine from shifting into the wrong gear I think the valves start floating at about 7,500 RPMS.
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Old December 14th, 2003, 09:55 AM   #12
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Yeah the engine definitely needs more revs, but I don't think the SOHC heads are really up for much more than 6800-7000. This is where the lighter valvetrain mass of a DOHC head design would be nice.
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Old December 14th, 2003, 01:07 PM   #13
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I read at the TSX forum they’re not getting an app neither. Sheesh!
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Old December 14th, 2003, 07:13 PM   #14
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Quote:
Originally posted by Doom878 on December 14th, 2003 at 03:07 PM

I read at the TSX forum they’re not getting an app neither. Sheesh!
Hondata needs to wake up and look around. They could do so much more business if they did the K24's and J series engines . Oh well, there loss as well as ours .



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Old December 14th, 2003, 07:40 PM   #15
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how many people would be seriously interested in a hondata reflash anyway? I mean everyone wants to new parts, but would you actually buy it if it was available?
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Old December 14th, 2003, 07:59 PM   #16
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The A1 is so damn undertuned from the factory that a reflash would freakin work wonders and totally transfer the car. Could fix the extremely rich running, the timing, and they could even make a new program for the CL-S cams. This engine needs a reflash way more than any stupid 4-banger does.

As long as it was priced in the $400-600 range, there would be about a zillion people here that would get it because it would fix so damn many problems.
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Old December 14th, 2003, 08:33 PM   #17
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I would pay up to $1500 for a replacement PCM that includes a knock sensor, is tuned for standard bolton mods (i/h/e) with better cams, and runs just as well as stock. The problem is the 6th gen Accord's PCM is not reflashable. A possible solution would be to retrofit the 7th gen PCM. Part costs are below (www.hondaautomotiveparts.com).

PCM $406.61
KNOCK SENOR $21.80
KNOCK SENSOR SUB-HARNESS $3.30

If I had a 7th gen Accord I would pay up to $500 for a reflash as long as it provided 20HP/20Torque with standard bolton mods (i/e).

Reflashing PCMs can be a cash cow. Once the initial development and reprogramming systems are paid for each reflash would be around 90% profit. You would just be paying for the guy that reflashes it.
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Old December 15th, 2003, 03:54 AM   #18
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Ok, I purchased a 98-99 accord v6 ecu last weel (why that one? cause I couldnt find another), and I gave it to a computer engineer, let me see what he can figure out from it. And let me see if he can reflash this sucker. I will let you know what happens. As for the 7th gen owners, you can do this yourself if you are really talented
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Old December 15th, 2003, 08:13 AM   #19
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Greddy?

I'm due to have the Greddy e-Manage system installed in January. According to the tech that I'm working with locally, he doesn't believe we'll be able to drop the VTEC down below 4400-4600 RPM from the 4800 stock level due to the aggressiveness of the higher cam...the motor just isn't designed for it intake wise to handle the higher cam at rpm's beyond a certain point. they will dyno and tune my car to go as low as they can before the power drop off occurs. that's all based on his experience with VTEC.

The biggest gains he said would be in fuel/air mixes and that while I won't be adding 25+ HP, he said that with my Injen CAI and this mod, a total of 15hp would be resonable.

He also said not to touch the rpm limit for shift points....our single cam motors will not like that at all.

again, just passing on the advice of a shop I know and trust.
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Old December 15th, 2003, 09:57 AM   #20
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saaaaaaaaawwwweeeeeeeeeeeettt!


Keep us posted.
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Old March 1st, 2004, 09:34 AM   #21
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Re: Greddy?

Quote:
Originally posted by pdqgp
I'm due to have the Greddy e-Manage system installed in January. According to the tech that I'm working with locally, he doesn't believe we'll be able to drop the VTEC down below 4400-4600 RPM from the 4800 stock level due to the aggressiveness of the higher cam...the motor just isn't designed for it intake wise to handle the higher cam at rpm's beyond a certain point. they will dyno and tune my car to go as low as they can before the power drop off occurs. that's all based on his experience with VTEC.

The biggest gains he said would be in fuel/air mixes and that while I won't be adding 25+ HP, he said that with my Injen CAI and this mod, a total of 15hp would be resonable.

He also said not to touch the rpm limit for shift points....our single cam motors will not like that at all.

again, just passing on the advice of a shop I know and trust.
Tim, have you got your Greddy installed? and how much did it cost you?

Thanks..
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Old March 22nd, 2004, 08:45 PM   #22
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very good info...Has anyone spoke to hondata about the 4cyl reflash (K24)? If I am not mistaken if they can do that much with a RSX (granted better internals, well the motor is made for performance vs the accord) I think we could see some nice #'s, unless they have had trouble. I mean isnt Honda doing a parts bin now, with parts from the RSX, TSX and Accord, CR-V as well sharring parts?
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Old March 23rd, 2004, 07:10 AM   #23
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Hondata already said it wouldn't touch the TSX. I don't know about the Accords.
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Old March 23rd, 2004, 07:44 AM   #24
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Quote:
Originally posted by Doom
Hondata already said it wouldn't touch the TSX. I don't know about the Accords.
The TSX from what I read online is pretty much stacked stock, meaning any more higher rpms or too much power and things may go wrong. Thing is dont we share the same block, but we have a diffrent head? There head is from an RSX right? But a diffrent cam and ecu basically. I am a lil unsure of what sets us all apart.
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Old March 23rd, 2004, 10:42 AM   #25
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I'd check www.acura-tsx.com
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Old March 23rd, 2004, 10:50 AM   #26
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Took a quick spin over there. Back from Dec:

Hey I spoke with Doug from hondata in email a few times today and he said he was going to post to this thread. Unfortunately he forgot and posted to the wrong site(the old one) so i'm putting a transcript of what he posted here. The following is straight from Doug:


A program for the TSX is high on our priority list. But...

At this point in time the equipment and software to reprogram the TSX ECU is unavailable. We do not know when it will become available -but when it does, within a month or two we expect to have a program available.

From the dyno charts I have seen the TSX, will benefit from a lowered VTEC point and raised rev limiter.

Economy will not change with any ECU reprogramming unless you drive your car harder.

I believe that the head on this engine is capable of taking the DC5 Integra type R cams, which should help the power and torque considerably.

**Today they're having problems to crack the ECU since it's different from the RSX. They have to learn that ECU and the completion of the job could take 6 mos. What this means to Accords? Maybe a totally different ECU to learn thus extending development time?
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Old March 23rd, 2004, 11:51 PM   #27
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wow, awesome post man^

thanks
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Old March 24th, 2004, 07:06 AM   #28
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Thanks.

Another update:

There's one guy named Stokely I think. He has a turbo setup for it but not installed yet. He needs an ECU mod to tune it because the VAFCII won't be enough to tune. It doesn't fine tune it enough like an ECU mod like Hondata. Oh and in case anyone was wondering, the original VAFC cannot be used to tune iVTEC engines like on the TSX, RSX, i4 Accord, etc.
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Old April 21st, 2004, 10:05 AM   #29
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Quote:
Originally posted by Doom
Took a quick spin over there. Back from Dec:

Hey I spoke with Doug from hondata in email a few times today and he said he was going to post to this thread. Unfortunately he forgot and posted to the wrong site(the old one) so i'm putting a transcript of what he posted here. The following is straight from Doug:


A program for the TSX is high on our priority list. But...

At this point in time the equipment and software to reprogram the TSX ECU is unavailable. We do not know when it will become available -but when it does, within a month or two we expect to have a program available.

From the dyno charts I have seen the TSX, will benefit from a lowered VTEC point and raised rev limiter.

Economy will not change with any ECU reprogramming unless you drive your car harder.

I believe that the head on this engine is capable of taking the DC5 Integra type R cams, which should help the power and torque considerably.

**Today they're having problems to crack the ECU since it's different from the RSX. They have to learn that ECU and the completion of the job could take 6 mos. What this means to Accords? Maybe a totally different ECU to learn thus extending development time?
How about the Accords though? All I want to know is if they're even going to touch it. I dont care for the raised Limiter, since I've heard on the board that valves start to float after a certain RPM, but kicking the VTEC point down is something I'm definately interested in. I've seen what Hondata can do to the RSX, but I'm not willing to get an RSX just so I can use Hondata on it. Thanks
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Old April 21st, 2004, 10:36 AM   #30
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If you want to just change the VTEC point get a VAFC II.
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