JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
#1
JDM F20B TURBO Blue Top Swap / Build Thread... 2K Accord Coupe -
So my buddy has had his 2000 Accord Coupe for some time now and its taking a hefty beating...but since business has treated him good recently, so he wants to bring her back to life.
New heart, new interior, new rims, new suspension, etc.. etc...
The motor he is choosing to use is the F20B Blue Top long block with a T2T4 LSD transmission. He is going to be getting the motor/tranny from HMotorsOnline.com in the coming week or so and thats when the fun will begin......
So here are a couple of questions I have to make sure were going to have everything needed for this swap, and some parts to make this goes down somewhat smoothly.....
The swap from HMotorsOnline includes the following:
- Motor
- Alternator
- Intake Manifold
- Exhaust Manifold
- Fuel Rail
- Injectors
- Distributor
- Engine Harness
- Comes With All Sensors Needed
- 5 Speed T2T4 LSD Tranny
1. Since the motor is for a JDM RHD vehicle, is this harness going to work in a 2K USDM Accord Coupe that is LHD. I've been told it wont reach to the passenger side of the car? maybe yes, maybe no?
2. What ECU should he be running for this setup? Ive seen people using P13, and P28...however, i think figuring out what kind of harness he needs is the first step in answering this question. ( Dont say the stock ECU cause its an AUTOMATIC ECU...)
3. Which axles should we be using to mate the H-series into the Coupe? Ive read that F series and H Series axles are interchangeable, but can someone verify this in this case??? If they are, does that mean we can use the stock axles from the F23 thats in there now??
4. What kind of mounts are we going to need? Does is mate to the existing? or do we need a new setup?
5. Lastly, if anyone has anything to add that ive missed or that could be beneficial to know before we proceed with this swap would be greatly appreciated...
Thanks for your help guys, im going to end up using this thread for pics of the tear down, swap, questions, answers and all that mumbo jumbo....
Help us bring her back to life.....
Dc2
New heart, new interior, new rims, new suspension, etc.. etc...
The motor he is choosing to use is the F20B Blue Top long block with a T2T4 LSD transmission. He is going to be getting the motor/tranny from HMotorsOnline.com in the coming week or so and thats when the fun will begin......
So here are a couple of questions I have to make sure were going to have everything needed for this swap, and some parts to make this goes down somewhat smoothly.....
The swap from HMotorsOnline includes the following:
- Motor
- Alternator
- Intake Manifold
- Exhaust Manifold
- Fuel Rail
- Injectors
- Distributor
- Engine Harness
- Comes With All Sensors Needed
- 5 Speed T2T4 LSD Tranny
1. Since the motor is for a JDM RHD vehicle, is this harness going to work in a 2K USDM Accord Coupe that is LHD. I've been told it wont reach to the passenger side of the car? maybe yes, maybe no?
2. What ECU should he be running for this setup? Ive seen people using P13, and P28...however, i think figuring out what kind of harness he needs is the first step in answering this question. ( Dont say the stock ECU cause its an AUTOMATIC ECU...)
3. Which axles should we be using to mate the H-series into the Coupe? Ive read that F series and H Series axles are interchangeable, but can someone verify this in this case??? If they are, does that mean we can use the stock axles from the F23 thats in there now??
4. What kind of mounts are we going to need? Does is mate to the existing? or do we need a new setup?
5. Lastly, if anyone has anything to add that ive missed or that could be beneficial to know before we proceed with this swap would be greatly appreciated...
Thanks for your help guys, im going to end up using this thread for pics of the tear down, swap, questions, answers and all that mumbo jumbo....
Help us bring her back to life.....
Dc2
Last edited by DC2-ProdUcTiOnS; 03-01-2010 at 05:55 AM. Reason: Changed Swap.....went from H23 to F20B Turbo
#2
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
may sound stupid but have you checked the tread. happened to me and got fined hefitly on the drive back/
#5
He knows where you live!
iTrader: (1)
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
1. Since the motor is for a JDM RHD vehicle, is this harness going to work in a 2K USDM Accord Coupe that is LHD. I've been told it wont reach to the passenger side of the car? maybe yes, maybe no? ACCORD FAQ MODIFY EXISTING HARNESS
2. What ECU should he be running for this setup? Ive seen people using P13, and P28...however, i think figuring out what kind of harness he needs is the first step in answering this question. ( Dont say the stock ECU cause its an AUTOMATIC ECU...) ACCORD FAQ - best to use the P28 w/ basemap
3. Which axles should we be using to mate the H-series into the Coupe? Ive read that F series and H Series axles are interchangeable, but can someone verify this in this case??? If they are, does that mean we can use the stock axles from the F23 thats in there now?? ACCORD FAQ - All F, or All H (axles and intermediate shaft)
4. What kind of mounts are we going to need? Does is mate to the existing? or do we need a new setup? ACCORD FAQ
5. Lastly, if anyone has anything to add that ive missed or that could be beneficial to know before we proceed with this swap would be greatly appreciated... ACCORD FAQ
Thanks for your help guys, im going to end up using this thread for pics of the tear down, swap, questions, answers and all that mumbo jumbo....
Help us bring her back to life.....
Dc2
2. What ECU should he be running for this setup? Ive seen people using P13, and P28...however, i think figuring out what kind of harness he needs is the first step in answering this question. ( Dont say the stock ECU cause its an AUTOMATIC ECU...) ACCORD FAQ - best to use the P28 w/ basemap
3. Which axles should we be using to mate the H-series into the Coupe? Ive read that F series and H Series axles are interchangeable, but can someone verify this in this case??? If they are, does that mean we can use the stock axles from the F23 thats in there now?? ACCORD FAQ - All F, or All H (axles and intermediate shaft)
4. What kind of mounts are we going to need? Does is mate to the existing? or do we need a new setup? ACCORD FAQ
5. Lastly, if anyone has anything to add that ive missed or that could be beneficial to know before we proceed with this swap would be greatly appreciated... ACCORD FAQ
Thanks for your help guys, im going to end up using this thread for pics of the tear down, swap, questions, answers and all that mumbo jumbo....
Help us bring her back to life.....
Dc2
https://honda-tech.com/forums/honda-accord-1990-2002-2/6th-gen-h22-swap-info-473019/
#6
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
^^^ most of your answers are in TheMuffinMan's post above. As far as the mount question, thinking that its almost the exactly like swapping an h22a, all the stock mounts mount right up. EXCEPT the driver's side mount. The mount bracket on the h22 engine has to be modified to bolt up to the accord's mount. I'm in the middle of the swap and the guy who was dropping the motor in (but didn't get it goin, its currently at a shop being built, n yes they got the wiring that the other guy couldn't figure out), somehow got a hold of a Euro R mount bracket n it worked perfectly....but i hav no clue wat the chance would be finding one of those brackets. We had dizzy wiring problems just to let u know...so you mite bump into that...or not...
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#8
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
Yeah, I agree with you on that......I still have no clue where this guy sourced the Euro R mount bracket that I'm using.
#9
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
well it seems my buddy has had a lil change of heart and now wants to get the F20B now....pretty much the same except for everything is interchangeable now cause its F to F....gonna throw that baby in there and boost it.....
we got the motor pretty much ready to be pulled and started working on the body getting it ready for primer....
updates soon....
we got the motor pretty much ready to be pulled and started working on the body getting it ready for primer....
updates soon....
#10
Honda-Tech Member
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
how is the F20b interchangeable with the F23a? sure they're both F's but that does not make it more interchangeable than a H series motor ... it's harder to source parts such as pistons for an F20b if they ever take a crap ... IMO stick with the H23A VTEC ... sure the F20b is a high revver but it lacks the torque of an H23A and with a heavy 6th gen accord ... you want that tq ... the F20b has even less torque than the factory F23
#11
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Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
For the drivers side mount, call www.dentsport.com
They have made a few drivers side mounts for 6thgen accords to fit h motors.
The F20b is basically a de-stroked h22. It was designed to compete in touring car racing where the engine size was limited to 2.0l. It makes good hp, but crappy torque. Id stick with the h22 or h23vtec.
They have made a few drivers side mounts for 6thgen accords to fit h motors.
The F20b is basically a de-stroked h22. It was designed to compete in touring car racing where the engine size was limited to 2.0l. It makes good hp, but crappy torque. Id stick with the h22 or h23vtec.
#12
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
agreed on h22 or h23^^^ n also, i asked the guy who did my swap, where he got the mount bracket, just to make sure, n he said he had one layin around from a swap he had done....he mentioned that the driver's side mount bracket was off of an h23a vtec blue top..so from the sounds of that, the h23a would've mounted right up (unless he didn't remember correctly where he got the bracket bt im pretty sure he did). But i guess you're goin another route now...but if you had the chance to get the bracket off the h23 that should help out for that driver's side mount issue.
#14
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Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
1. Since the motor is for a JDM RHD vehicle, is this harness going to work in a 2K USDM Accord Coupe that is LHD. I've been told it wont reach to the passenger side of the car? maybe yes, maybe no?
2. What ECU should he be running for this setup? Ive seen people using P13, and P28...however, i think figuring out what kind of harness he needs is the first step in answering this question. ( Dont say the stock ECU cause its an AUTOMATIC ECU...)
3. Which axles should we be using to mate the H-series into the Coupe? Ive read that F series and H Series axles are interchangeable, but can someone verify this in this case??? If they are, does that mean we can use the stock axles from the F23 thats in there now??
4. What kind of mounts are we going to need? Does is mate to the existing? or do we need a new setup?
5. Lastly, if anyone has anything to add that ive missed or that could be beneficial to know before we proceed with this swap would be greatly appreciated...
Dc2[/QUOTE]
#15
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
...........
Thanks for the info!!!! keep it comin. Im new to anything other than B,D, or H......
#17
He knows where you live!
iTrader: (1)
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
would it be better to stay obd2b? or should i convert? now that im thinking about it, i need to see what the harness is wired to receive.
even with the F20B swap? ill still need the prelude axles and half shaft???
...........
Thanks for the info!!!! keep it comin. Im new to anything other than B,D, or H......
2) You can use All F, All H, or F driver's and intermediate shaft and H passenger.
And to clarify:
All F = F driver axle, F pass axle, F intermediate shaft
All H = H driver axle, H pass axle, H intermediate shaft
The issue is the F and H intermediate shafts and axles are different, I personally had issues with F pass axles (would bind up) and went to an H22 one which worked fine. I kept the F intermediate and driver's.
#18
Honda-Tech Member
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
TheMuffinMan, what symptom does it give when the passenger side axle bind? I'm still using both my F Series driveshafts.
#19
He knows where you live!
iTrader: (1)
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
I figured since the shorter axle worked perfectly it was binding up.
#21
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
help i did the f20 swap but having issues with the auto trans working properly what ecu do i use cause i used f23 harness on the f20 and used f20 ecu but the f20 uses 3wire vss and i swpped the f23 2wire vss sensors but i have the d4 flashing and the tranny dont shift right and it slams into first when coming to a stop and the power sterring makes a winding noise but with the stock ecu the power steering works but tranny and motor dont run good but with stock ecu no d4 flashing do u have any info or know anyone that does
#22
Re: JDM F20B TURBO Blue Top Swap / Build Thread... 2K Accord Coupe -
Would have gone H23 for the Torque but looks good nonetheless...good luck!
#23
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
i dont get why everyone is saying its the wrong swap to pick.....
the numbers arent THAT far off in terms of torque...but HP is WAY higher in F20B from start....
STOCK F23/A1 SETUP-
HP: 150
TQ: 152
STOCK H23 SETUP-
HP:170
TQ: 156
STOCK F20B SETUP-
HP: 197
TQ:145
Ill take the 30 or 50 HP over 7 or 11 ft/lbs of TQ.....the turbo is going to bring all numbers wayy up anyway, so whats the difference i guess???
As long as it is put together with good parts and gets a good tune, he should be putting out decent power....
the numbers arent THAT far off in terms of torque...but HP is WAY higher in F20B from start....
STOCK F23/A1 SETUP-
HP: 150
TQ: 152
STOCK H23 SETUP-
HP:170
TQ: 156
STOCK F20B SETUP-
HP: 197
TQ:145
Ill take the 30 or 50 HP over 7 or 11 ft/lbs of TQ.....the turbo is going to bring all numbers wayy up anyway, so whats the difference i guess???
As long as it is put together with good parts and gets a good tune, he should be putting out decent power....
#24
Honda-Tech Member
Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
One of the problems with just looking at peak number like that is that you can't tell what the power band look likes. Sure, the F20B only makes 7 ft-lbs less than the F23. The problem is that it takes a lot more revs before you start to make that torque. The torque curve for both the H23 and F23 is much broader and flatter, while the F20B is more peaky and comes on later in the curve. To add on to that, we're talking about a chassis that is already in desperate need of more torque.
And yes, a turbo will bring those numbers way up anyways. However, unless your buddy is using a really small turbo, it still won't start to spool until 3k+ rpms on that motor. Probably doesn't sound that bad until you think about daily driving. Unless you just like pissing away gas by driving with the rpms sky high all the time, you'd rarely be high enough to get that boost in power.
Ah, but there is still something that will negate the loss of torque and generally make the swap all worth it. The tranny. Ditching the F23 tranny in favor of the F20's tranny (or any H-series tranny) will make a huge improvement. I dare say that the tranny is the most beneficial component of the swap.
So, what does all my blabbering mean? Your buddy will be fine. Myself, I would have chosen an H-series for the MUCH flatter, broader torque curve, which equates to easier and more bearable daily driving. That's just personal preference though. BUT... if your buddy kept the stock tranny, he'd be sorry...
Good luck with the swap.
And yes, a turbo will bring those numbers way up anyways. However, unless your buddy is using a really small turbo, it still won't start to spool until 3k+ rpms on that motor. Probably doesn't sound that bad until you think about daily driving. Unless you just like pissing away gas by driving with the rpms sky high all the time, you'd rarely be high enough to get that boost in power.
Ah, but there is still something that will negate the loss of torque and generally make the swap all worth it. The tranny. Ditching the F23 tranny in favor of the F20's tranny (or any H-series tranny) will make a huge improvement. I dare say that the tranny is the most beneficial component of the swap.
So, what does all my blabbering mean? Your buddy will be fine. Myself, I would have chosen an H-series for the MUCH flatter, broader torque curve, which equates to easier and more bearable daily driving. That's just personal preference though. BUT... if your buddy kept the stock tranny, he'd be sorry...
Good luck with the swap.
#25
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Re: JDM H23a Blue Top Swap - 2K Accord Coupe - questions, and hopefully answers....
i dont get why everyone is saying its the wrong swap to pick.....
the numbers arent THAT far off in terms of torque...but HP is WAY higher in F20B from start....
STOCK F23/A1 SETUP-
HP: 150
TQ: 152
STOCK H23 SETUP-
HP:170
TQ: 156
STOCK F20B SETUP-
HP: 197
TQ:145
Ill take the 30 or 50 HP over 7 or 11 ft/lbs of TQ.....the turbo is going to bring all numbers wayy up anyway, so whats the difference i guess???
As long as it is put together with good parts and gets a good tune, he should be putting out decent power....
the numbers arent THAT far off in terms of torque...but HP is WAY higher in F20B from start....
STOCK F23/A1 SETUP-
HP: 150
TQ: 152
STOCK H23 SETUP-
HP:170
TQ: 156
STOCK F20B SETUP-
HP: 197
TQ:145
Ill take the 30 or 50 HP over 7 or 11 ft/lbs of TQ.....the turbo is going to bring all numbers wayy up anyway, so whats the difference i guess???
As long as it is put together with good parts and gets a good tune, he should be putting out decent power....