CB7 V6 Swap Parts List & Methods

[gloryaccordy]

Swapping over the entire harness would be an option, and would allow you to retain the stock ECU. But I'm sure there would be issues with other interfaces from the ECU to the stock CB.

Then again, you could build your own custom harness like owequitit and cp[mike] talked about a bunch of pages ago. This would be the option to shoot for if you were going to use a complete standalone engine management system like AEM EMS, a Haltech unit, or whatever Altech uses. I think this would be the easiest option, as it would allow the builder to know exactly what is going on with the harness (which would save countless hours of build/tuning time).

Nose heavy indeed. 250+ whp though.

And that's with a stock motor, start working internals or *gasp* turbo and you have the potential for a monster

If u got an early Type-S motor I think all u would need would be the gauge cluster and ignition cylinder. One way or another u gotta do some serious rewiring, prob. best to just go with the stock harness.

I am just looking at it from a realistic perspective. Just to get this running u need to be an expert welder+fabricator & wiring dude, with ample cash for parts and all the shit that will come with this...

[Tnwagn]

If u got an early Type-S motor I think all u would need would be the gauge cluster and ignition cylinder. One way or another u gotta do some serious rewiring, prob. best to just go with the stock harness.

I am just looking at it from a realistic perspective. Just to get this running u need to be an expert welder+fabricator & wiring dude, with ample cash for parts and all the shit that will come with this...

For sure, this is definitely a pro-level job. Welding is a must to get the mounts to work right (unless you want to pay Hasport to build you mounts $$$$$ )

Other than that, fabrication wouldn't be much of an issue. Axles are going to have to be custom made by a drive shaft manufacturer.

Wiring would need to be the stock wiring or stand alone.

Then you have an engine in the car, with a link to the wheels, and a computer to control it.

The transmission shouldn't be too hard, just have to weld the bracket for the shifter in correctly.

Custom lines wouldn't be hard at all. It would take time, yes, but those could be done by any serious tuner with enough will power.

[lokuputha]

And you're left with a nose-heavy but powerful CB

easy to fix the weight distribution issue:

1) Higher rated suspension: springs, sway bars, dampers
2) Higher rated brakes: vigor, Prelude, CB9
3) Battery relocation to trunk
4) Sub box and amp in trunk

...back to regular weight distribution, done.

[Tnwagn]

easy to fix the weight distribution issue:

1) Higher rated suspension: springs, sway bars, dampers
2) Higher rated brakes: vigor, Prelude, CB9
3) Battery relocation to trunk
4) Sub box and amp in trunk

...back to regular weight distribution, done.

Or just use a CB9 and problem's already solved

[12gage]

A turbo J-series sounds terrifying...

Hell yeah, how bout built internals and TWO Turbos.

[Tnwagn]

Hell yeah, how bout built internals and TWO Turbos.

Hmm, where's that 10k I had laying around to build up a J-series and twin turbo it



Unless someone's pockets are SUPER deep and they are financially stable we aren't even going to see this swap happen.

I've been going over some stuff and am realizing how difficult this will be.

The electrical alone is going kick the ass of anyone who tries this.

I'd be willing to say that right now, the best option in terms of getting everything you need for the swap is to find a wrecked J-series car and put it next to the CB and just start transferring over parts.

[lokuputha]

Tnwagn thats exactly what needs to happen. It will need to happen in three stages:

1. Electrical Harness; overriding immobalizer, wiring ECU and closing all extra switches.
2. Integrating engine into engine bay; custom mounts, exhaust downpipe, Intake.
3. Drive.

[SuperTuner12010]

It would be a real pain in the ass to use the stock ecu for the motor, because you are presented with the immobilizer.

The J30 crx used a chipped p28 with crome pro(dont quote me) I deleted the email. But one of the programs have the ability to add cylinders.Maybe it was hondata I cant be sure.

All you would have to do is put the J in the car, then using the stock accord harness and the j30's you create a harness that will work. Tune it, and your good to go.

Along with custom axles and a few other parts.

[lokuputha]

the immobilizer requires a small potentiometer to disable; it needs about 7.5V I think. I'll try to find out the details.

[Tnwagn]

the immobilizer requires a small potentiometer to disable; it needs about 7.5V I think. I'll try to find out the details.

Hell, I have all the wiring diagrams at my disposal (**cough*hondahookup*cough**UA6TL**cough**) and have looked through them some and found the immobilizer diagram. It didn't seem like there would be any trouble at all bypassing it given the fact that you are going to have to be running wires yourself all over the place. I'm sure you can just find another wire coming from or to the ECU that provides the right Voltage/Amperage to keep the ECU happy and think it's where it needs to be.

I'm more worried about some of the things that are on the newer J-series cars that we won't/can't use on ours that are heavily controlled by the ECU (such as the adjustable motor mounts). THESE are going to be the things that will frustrate the hell out of whoever is wiring it up. I need to look into methods to bypass these things.

If I was going to go the way of a new ECU system then I wouldn't dick around with Chrome or even Hondata for this swap. I'd go to Haltech and get Mike (Chessboxer) to help me out, as he knows so much about it's abilities and inner workings that he could probably do the wiring himself.

But then again, that would drive up price like crazy which is something that needs to be taken into consideration when performing a swap of this magnitude. A little extra here and there can end up being the difference between a $5,000 swap and a $10,000 swap.

[Tnwagn]

Here's the deal guys. Go to Hondahookups.com and download the 2004 TL UA6 Manual. Go to chapter 11 and read it. If you can get all that to work then the swap is 90% done. The rest is just mechanical, which is pretty simple with this swap (plug this in here, that in there, ect.)

Luckily, the manual not only gives a list of what each pin goes to but it even goes so far as to tell you what the normal power going to it is and what different power ratings mean to the ECM.

I will dive into this schematic this weekend and see what I can find out. Another thing I remember that I thought would possibly cause SERIOUS headaches is the Cruise Control (it's a MASSIVE system on these newer cars and is a BIOTCH to troubleshoot).

[CB7Man]

Is there something wrong with the J37?
J37 mated to a 6 speed....forget tuning! You got 300 hp stock.

[Tnwagn]

Is there something wrong with the J37?
J37 mated to a 6 speed....forget tuning! You got 300 hp stock.

It's technically the newest of the J-series which means it is going to have all the bells and whistles. This means more work getting it to work in our cars. Also, the price is going to be astronomical to get a J37 and a 6 speed. The J30 and J32 have been around longer and are going to be far easier to find/purchase for more reasonable prices. If you want to get the most 'common' J-series out there go with the J35. It's in more cars than any of the other flavors of this engine. Be careful though, the J35 is where Honda started to put in VCM on a lot of engines. Here's a little guide to the J-series engines.

[Tnwagn]

And for anyone who is feeling truly ambitious, here is part 1 of the ECM/PCM wiring. I'm not going to actually post the full thing here as it is too big, so I'll include a thumbnail and a link to the actual full size one.



http://img366.imageshack.us/img366/6...wiring1ys7.jpg

[owequitit]

I think some of your facts are wrong.

The Hybrid didn't use VCM, and I am almost 100% sure of that. Also, any J series introduced AFTER the Accord FMC for 2003 has the 1 piece integrated manifolds.