I will be installing ITBs on my V6 once the manual trans swap is done. The mounting flange is really easy to do, which was the biggest problem for me on my Honda D series motors which had too much going on with the flange.
I will need a standalone ECU, so I will run either a Megasquirt or a Haltech ECU, depending on the funds available then.
Those velocity stacks you are talking about can be done on plenum single-TB style manifolds too, but they will be hidden unless you make a rice/baller manifold out of thick plexiglass lol.
With the Skylines, it is more difficult since they are turbocharged and need a proper plenum that won't explode/leak under boost lol.
It is all doable, just depends on how much money you want to spend and how much downtime you are ready for.
Hi Chris, Do you have any ECU/Remap options for the 7th Gen Honda Accord V6 motors (J30A4)?
The only things I've noticed are people using piggybacks like GReddy and AEM FIC. Let me know you have/know anything better. Thanks!
Best regards, Pranav Thadeshwar.
Word from the proverbial horse's mouth
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Nothing that I know of or have researched except for Standalone ECUs
Christopher Harris Xenocron Tuning Solutions
Your friends talking about the Hondata remap are probably talking about the I4 K24 engines which do have Remaps and Hondata KPro solutions.
Another reply from a Xenocron employee
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What is the exact year and specification of you vehicle. There is a plug and play AEM box, but that only works with automatic engine harness on a manual trans car. It will not work on a automatic car because there is no transmission controls available trough the AEM box.
Liam Tiner – Customer Service
Xenocron Tuning Solutions
The plug and play AEM box he is talking about is the AEM FIC.
Engine mounts and axels are the same, you will need tranny mounts which I have been using 07 TLS ones due to better design. Also you might want to look for a 04-06 TL tranny since it has LSD.
When you say I will need tranny mounts, do you mean tranny bracket or the rubber mounts themselves?
Can you list all the transmissions that will bolt on directly? Most of the cars you talk about are not sold in our country, so I've never even seen them. If you can list out the options, I can get one of my friends in the US to check out a few junkyards.
15% is about standard for a MT, 25% is about standard for a AT.
That's what we thought too. It was an MT Honda tranny btw. You'd be surprised at the transmission losses on some cars. My point being that it's pointless to take transmission losses into account. Variances like stiffer pressure plates, clutch plate material, the state of the flywheel are just a few things that can increase or decrease transmission losses.
Since that day, we stopped trying to get a hypothetical hp/tq number at the engine and stuck to comparing numbers at the wheels.
Is the 15% transmission loss measured by putting the engine on an engine dyno?
We've had some transmissions that caused about 25% loss, though not the J series transmissions. The engine wasn't put on an engine dyno but certain dynos can measure transmission loss after the test is done and the wheels are allowed to coast on the roller.
If you account for 20% transmission loss, that figure would be even larger.
The sad thing is the lack of good tunes since there's no support for it. We once picked up about 40hp in a day's work of tuning the ECU. Admittedly this was a D15 Honda engine, but we went from 142whp to 183 whp in a matter of hours. That was a gain of 28% just with a tune. Now admittedly, that was a freak engine and the initial tune was conservative, but I'd expect atleast another 20-25 whp to be freed up with a good street tune, and atleast 30+ whp if tuned on a dyno.
Is it Zencron or Xenocron? The guy who runs Xenocron is Chris. The place is in New Jersey.
FWIW, Hondata doesn't make anything for the J series, so unless Chris has hooked up with someone else for the J series, I doubt he'll be able to help you. Doesn't hurt to give it a shot, because if he has something for our engines, it won't be crap. Xenocron is well known and respected.
I don't think Hondata has any motivation to work on the J series engines. If you ever noticed in the past, they only went for the 'performance-oriented' engine in every generation. First, it was the B series (getting it to work on the D wasn't their priority. Then they went with the K and ignored the R engine which was another economy oriented engine. The V6, while being quite powerful, is nowhere near the 100bhp/ltr mark and there are few takers for it compared to the K or the B.
To expand on my previous post, I went to check what the Megasquirt guys had been up to lately. I didn't like their previous boards because the Honda OBD1 solutions were simply incredible and DIS/COP ignition wasn't a big priority. With these engines, since they came with COP from the factory, Megasquirt would be a good option.
Their V3 boards seem to have more than what we need (8 sequential ignition outputs and 8 discrete ignition outputs). We only need 6 of each to get sequential, which is what I like. Wasted spark is fine but I like to have sequential fuel injection.
Honestly, I feel this to be a very good option. I will be looking into this for sure.
Matt at DIYAutotune is a friend and I will talk to him about this. I will be testing one on my car this year. If it works out well, I can pester him to think about selling this in a kit form like they do with their other MSPnP ECUs which are plug-in standalones based on the Megasquirt.
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