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Old May 20th, 2006, 01:10 AM   #1
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There has been much confusion with swapping a 6 speed manual transmission into a 6th gen V6 Accord. I thought I would write this post to allow people to easily understand how the process works without unnecessary reposting of this topic over and over again. As well as filling my PM box with one sentence messages asking "How do a swap a 6 speed in my car?"

The Module
Overview
The swap module allows for the interfacing of the 6 speed manual transmission with the stock Accord 4 speed automatic transmission computer.

Without the module the following feature will not work.
-VTEC
-Full rev limit
-Speedo
-Reverse lock out
-Reverse light
-Passing inspection due to CEL

Parts list
The parts used for this swap are quite simple everything is available from Honda except the harness. Try to get as many parts off the donor car as possible. Here are some diagrams of the parts needed.

You can purchase parts and view detailed diagrams at Honda parts sites such as www.hondaautomotiveparts.com and www.acuraautomotiveparts.org. I find these are great sites for diagrams which allow you to see what is involved in a swap.

Mounts
The only mounts that are required to be change are the transmission mounts. The rear engine mounts can also be changed with a CL-S mount which is stronger but is not required. For the transmission mounts use the ones from the 03 CL-S 6 speed.

Axles and Intermediate shaft
The stock axles and intermediate shaft work just fine with the 6 speed transmissions. The CL-S axles are suppose to be stronger and thicker.

Pedals
You can use either the 03 CL-S or I4 Accord pedals.

Clutch hydraulics
You can use the clutch lines from the CL-S as well as the master cylinder. I have tried using a master cylinder from a mid 90's Civic as well and it works just fine and is a good bit cheaper.

Clutch Disc, Pressure Plate and Flywheel
You can use the clutch disc, pressure plate and flywheel from any 6 speed transmission. The Accord, TL and CL all use the same clutch but the CL uses a different flywheel which doesn't matter with this harness.

Shifter and Linkages
The I4 Accord shifter and linkages are not a direct fit and will have to be modified. The only linkages and shifter that are a direct fit are the from the 03 CL-S.

6 Speed Transmissions

6 Speed transmissions from the following cars can be used. But the Accord and TL transmissions will have to be modified slightly by welding on a stud for the shift linkage. (more on this later)
03-07 Accord V6 MT (NO LSD)
03 CL-S MT (LSD)
04-08 TL MT (LSD)

Special Preparations
Before installing the harness the mechanical aspects and stock wiring should be checked for functionality. This can done be driving the car in limp mode, by removing the transmission range switch from the automatic transmission and connecting it to the engine harness. Then by manipulating the the switch to the N or P position using a screw driver. Test to see if the car will drive. This will eliminate difficult troubleshooting due to the possibility of problems with both the car and harness.


Common Questions
Q: What car will this harness work on.
A: 98-02 Accord V6

Q: Will the harness work with a TL or CL.
A: Not yet we are working on the Type-S ECU currently. The harness might work on the 99 TL and will soon be tested.

Q: Can I use a I4 or Prelude transmission.
A: No only the listed transmission will work.

Q: Can I use this harness with the J32A2 Type-S ecu.
A: No, we are currently working on a harness that works with a Type-S motor. We hope this can be applied to the Accord, TL and CL.

Q: How can I get a harness.
A: The design has been modified for a easy install and will be mass produced soon. The first ones should be ready in around April.

Success Stories
Please let me know of any corrections.

Richie V6
99 Accord J30A1 with TL 6 Speed
99 Accord ECU

Capnff
99 Accord J32A1 with Accord 6 Speed
99 Accord ECU

MikeyMike
99 Accord J30A1 with CL 6 Speed
99 Accord ECU

JDMGRNAV6
99 Accord J30A1 with Accord 6 Speed
99 Accord ECU

2nd Gen Harness


**Orignal Post**
Hey guys, I am swaping in a 01 J30A1 and 6 speed into my 99 accord, since I bent my valves. This time I am working at home at a much slower pace so I will have time to take pictures and document the process.

So far I have prepped the new motor and removed the old motor from the car. I am waiting for my new clutch to come in. I will be running a distributor until I can figure out how to get a 01 ecu programmed by Honda.

As of September of last year I have been experimenting with swaping a 6 speed transmission into a 6th gen accord v6. As of last week I have designed, built and tested all the circuitry that solves all issues that people currently have with swaping in just a 6 speed tranny. Such as running check engine light and transmission fault free, working speedometer, vtec engaging and reverse shift lock out solenoid.

Several members have contacted me on building modules and harnesses that will allow them to run 6 speed tranny in there 6th gen accord. I was wondering how many people would be interested in this. I am planning on having custom printed circuit boards made and the larger the order the less expensive it will be. I am also thinking about offering a full swap kit with all the parts nesseccery for the swap including tranny. Basically you just pick up a pallet and all parts will be included.

I just noticed i have the resolution turned down really bad on my camera. The next set of pics will be more clear.

New motor, well only 28k


Stripped down to the bone


Stock harness


OOooOOOo J30A1 with 6 speed bolted to it


Tranny mount.


Hooked up


Front view


Rear View


No engine


Old engine meet your replacement


Tranny mount again


Unbolted CL-s 6 speed tranny


Flywheel
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Last edited by Richie V6; April 12th, 2008 at 02:10 AM..
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Old May 20th, 2006, 01:13 AM   #2
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good luck..
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Old May 20th, 2006, 01:17 AM   #3
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props to you my friend ! ! !

thanks for sharing this wonderful thing to us.

hopefully the people who asked you will walk the walk.

trust me, you guys will enjoy 6spd.



i got a Q: my tranny mount bolt (the one on the right side of the picture) is always coming out loose, why is that?

Last edited by SIRSIG; May 20th, 2006 at 01:20 AM..
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Old May 20th, 2006, 01:27 AM   #4
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Quote:
Originally Posted by SIRSIG
props to you my friend ! ! !

thanks for sharing this wonderful thing to us.

hopefully the people who asked you will walk the walk.

trust me, you guys will enjoy 6spd.



i got a Q: my tranny mount bolt (the one on the right side of the picture) is always coming out loose, why is that?
The crazy power of a type s motor. I really dont know, ive never had that problem. Have you tired locktie? Mine are sticking out cause i was about to pull the motor.
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Old May 20th, 2006, 01:48 PM   #5
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05 TL 6 speed fits?
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Old May 20th, 2006, 02:12 PM   #6
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Richie, since you have a tl 6 speed transmission there...could you check the bolt pattern of that vs the cl type s transmission or better yet see if the new tl 6 speed transmission bolts to your j30a. Let me know. Thanks.
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Old May 20th, 2006, 02:14 PM   #7
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Sweet this makes me want to do it on my own but I'm having CCAutotuners do it for me plus the 3.2 motor

The TL 6 speed is pretty much the same as the CL-S 6-speed so its no suprise.
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Old May 20th, 2006, 02:42 PM   #8
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Quote:
Originally Posted by blk2001tlon19s
Richie, since you have a tl 6 speed transmission there...could you check the bolt pattern of that vs the cl type s transmission or better yet see if the new tl 6 speed transmission bolts to your j30a. Let me know. Thanks.
I am planing on using the TL tranny just to confirm it fits. THe bolt pattern is the same as well as the mounts. I only see one minor difference and that is no crank sensor built into the tranny. But we dont need that anyways.
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Old May 20th, 2006, 03:52 PM   #9
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Put me in for the swap kit (no tranny) my friend. And congratulations on everything . I, just like everyone else here appreciate the time you have taken to improve your car, and soon, others . I cant wait to get everything setup, and I am a guy that walks the walk, so you dont have to worry about me flaking out . I honestly thanks you from the heart for making this possible.
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Old May 20th, 2006, 04:07 PM   #10
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So you are saying that you will make a package that includes a tranny so that we just swap it out in place of our auto and everything will work perfectly? Im definitely interested depending on the price.
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Old May 20th, 2006, 07:41 PM   #11
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Quote:
Originally Posted by 2001Accordtyper
So you are saying that you will make a package that includes a tranny so that we just swap it out in place of our auto and everything will work perfectly? Im definitely interested depending on the price.
Yup all mounts, wiring, hydraulics, pedels, and shifter. I am hoping it will cost around a Dr. Evil tranny.
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Old May 20th, 2006, 08:49 PM   #12
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WOW!!! and im saving up to buy a Dr.Evil.
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Old May 20th, 2006, 09:08 PM   #13
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Quote:
Originally Posted by 2001Accordtyper
WOW!!! and im saving up to buy a Dr.Evil.
Don't I managed to buy my 6-speed for $900 and install is about 2K so all together with miscellaneous parts its pretty much teh same price. Its just a matter of getting lucky and finiding one for a cheap price. Some guy is selling the whoel 3.2 swap conversion engine and manual for $4300.00 that includes the engine, tranny, and other miscelaneous stuff. Guy selling it is Hondaking.
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Old May 21st, 2006, 12:12 AM   #14
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Quote:
Originally Posted by Accord_V6_400m
Don't I managed to buy my 6-speed for $900 and install is about 2K so all together with miscellaneous parts its pretty much teh same price. Its just a matter of getting lucky and finiding one for a cheap price. Some guy is selling the whoel 3.2 swap conversion engine and manual for $4300.00 that includes the engine, tranny, and other miscelaneous stuff. Guy selling it is Hondaking.
Thats a steal you better jump on it.
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Old May 21st, 2006, 12:52 AM   #15
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Quote:
Originally Posted by Richie V6
Thats a steal you better jump on it.
richie you got pm
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Old May 21st, 2006, 01:14 AM   #16
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Quote:
Originally Posted by Richie V6
Thats a steal you better jump on it.
I am
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Old May 23rd, 2006, 12:14 AM   #17
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Wow i was expecting a little more interest.
So far

Module and harness:
1. Spectro

Swap kit:
1. 2001Accordtyper?
2. marr9188?

I know im all talk now but when i get this done with vids and pics there will be more interest.
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Old May 23rd, 2006, 12:37 AM   #18
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Can you get good prices on the CLS 6-speed ECU, wiring harness, clutch and flywheel?
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Old May 23rd, 2006, 12:44 AM   #19
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Originally Posted by Accord_V6_400m
Can you get good prices on the CLS 6-speed ECU, wiring harness, clutch and flywheel?
not really. i'd say that would cost about a grand for new. So you paid 4k for just an engine and tranny?
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Old May 23rd, 2006, 12:50 AM   #20
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not really. i'd say that would cost about a grand for new. So you paid 4k for just an engine and tranny?
3K actually yeah, need some more stuff besides money
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Old May 23rd, 2006, 01:00 AM   #21
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3K actually yeah, need some more stuff besides money
Oh i thought you paid 4.3k for everything. Have you figured out everything yet? I thought adian was the only one that knew how to do the swap, wiring is gonna be fun. id love to try it if i had some money.
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Old May 23rd, 2006, 01:04 AM   #22
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Quote:
Originally Posted by Richie V6
Wow i was expecting a little more interest.
So far

Module and harness:
1. Spectro

Swap kit:
1. 2001Accordtyper?
2. marr9188?

I know im all talk now but when i get this done with vids and pics there will be more interest.

rich your doing brilliant things for us 6th generation accord v6 owners and i would personally like to thank you for this, and dont worry about interest when it is done people will be swarming this thread we have just gotten used to people talking the talk but never walking the walk, once again thanks
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Old May 23rd, 2006, 01:07 AM   #23
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Quote:
Originally Posted by Richie V6
Oh i thought you paid 4.3k for everything. Have you figured out everything yet? I thought adian was the only one that knew how to do the swap, wiring is gonna be fun. id love to try it if i had some money.
I'm having the swap done by CCAutotuners. They are really great and they haven't even started to work on my car thats just my opinion from what I've seen so far

Aiden closed his shop and might do some work on other peoples cars from time to time but he doesn't have as much time and even though I have nothing against him there have been complaints about his work here and there.

The 4.3K was the swap that i saw online that appeared after I bought my tranny from the same guy.

Trying to go for 13.5 1/4 NA Think lighter and more powerful version of the 7th gen sedan 6speed can't wait, beats having a blown motor and it will definatly get better fuel economy
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Old May 23rd, 2006, 01:14 AM   #24
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Quote:
Originally Posted by Accord_V6_400m
I'm having the swap done by CCAutotuners. They are really great and they haven't even started to work on my car thats just my opinion from what I've seen so far

Aiden closed his shop and might do some work on other peoples cars from time to time but he doesn't have as much time and even though I have nothing against him there have been complaints about his work here and there.

The 4.3K was the swap that i saw online that appeared after I bought my tranny from the same guy.

Trying to go for 13.5 1/4 NA Think lighter and more powerful version of the 7th gen sedan 6speed can't wait, beats having a blown motor and it will definatly get better fuel economy
drools i just want to break 14s with stock motor. i have nothing against boost though. how much are they charging for labor?
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Old May 23rd, 2006, 01:24 AM   #25
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Quote:
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drools i just want to break 14s with stock motor. i have nothing against boost though. how much are they charging for labor?
They are charging $2500 for labor which makes sense, I rather not try and mess with the wire harness in my garage and prolong the whole event. I'm trying to have the whoel thign run me 6500-7000.
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Old May 23rd, 2006, 01:26 AM   #26
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Originally Posted by marr9188
rich your doing brilliant things for us 6th generation accord v6 owners and i would personally like to thank you for this, and dont worry about interest when it is done people will be swarming this thread we have just gotten used to people talking the talk but never walking the walk, once again thanks
thanks. i understand ive been on this forum a long time we cant even get people together for some engine mounts inserts. i will do my best to share the gift of 6 speed. the LSD is simply amazing around turns even with stock suspension you just point the car and it goes.
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Old May 23rd, 2006, 01:36 AM   #27
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Quote:
Originally Posted by Richie V6
thanks. i understand ive been on this forum a long time we cant even get people together for some engine mounts inserts. i will do my best to share the gift of 6 speed. the LSD is simply amazing around turns even with stock suspension you just point the car and it goes.
i just cant wait till this gets done, i'll have to give you the hook up for free lol.......just pm me when everything is getting close to done and i can start on your special order it takes a while to get here from a distributor in cali.....just keep my secret is all i ask

Quote:
Originally Posted by marr9188
i just cant wait till this gets done, i'll have to give you the hook up for free lol.......just pm me when everything is getting close to done and i can start on your special order it takes a while to get here from a distributor in cali.....just keep my secret is all i ask
how much faster did the car seem compared to the crapamatic tranny most of us have

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Old May 23rd, 2006, 01:51 AM   #28
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how much faster did the car seem compared to the crapamatic tranny most of us have
quite a bit faster. you have LSD and gain about 15 hp to the wheels from recovered drivetrain lost. 1st gear is fast and great for our torqueless engines. 2-4 are tight and fast. oh yea you can chrip 2nd no problem at all.
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Old May 23rd, 2006, 01:56 AM   #29
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Quote:
Originally Posted by Richie V6
quite a bit faster. you have LSD and gain about 15 hp to the wheels from recovered drivetrain lost. 1st gear is fast and great for our torqueless engines. 2-4 are tight and fast. oh yea you can chrip 2nd no problem at all.
that sounds awesome, i can only dream about it till the kit is done............ummmmmmmmmmm LSD
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Old May 23rd, 2006, 03:25 AM   #30
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