about to a swap need some advice
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Honda-Tech Member
Joined: Dec 2013
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From: Las Vegas
about to a swap need some advice
Hey guys I currently have a d15b2 motor and just about to buy this b16a obd0 dohc vtec. Any idea if this is a good swap or not.. what kind of tranny and axles do you guys think would fit? Would motor mounts line up or would I need to get adaptors. Ecu type? P72? Or one it comes with?
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Joined: May 2002
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From: Granada Hills, Ca, USA
Re: about to a swap need some advice
Check the sitcky FAQ at the top of this forum -> https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/88-91-crx-ef-civic-frequently-asked-questions-faqs-1508680/
You will find a ton of information as well as things to go search for on Google if you need more information.
You would need to do the DPFI-to-MPFI conversion as well as additional wiring for the engine. you do NOT use the engine harness from your new engine. Always make changes to your stock engine's harness to adapt it to the new engine.
The OBD0 B16 came with an OBD0 PR3 ECU. If you can get that ECu, then it would probably be the least expensive route.
You also have the option to buy an ECU jumper harness so you can plug into an OBD1 (or OBD2, but OBD1 is generally a better choice) ECU. This opens up a lot of possibilities for what you can use. The OBD1 PR3 and the PW0 both come from B16 motors with the only real difference being the rev limit (PR3-8200 PW0-7800). You can also use several other OBD1 ECUs if you chip them and load on a B16 MAP. Places like http://phearable.net/ offers services to handle this.
The P72 that you suggested may allow the engine to run, but it won't run properly. That was designed for a 1.8 motor that included a special set of intake manifold butterflies (IAB). You could chip it and run the B16 MAP on it, but it might be to your benefit to just get a more appropriate ECU.
For the trans, it would be great if you can find the stock B16 trans to bolt to it. However, that might be tough to find so you can also use a newer hydrolic clutch transmission, but it will require you to do a form of cable-to-hydro clutch conversion. There are a few ways to go about this so I'll leave that to you to research.
You will need engine mounts to hold the B-series motor in place of that stock D-series. http://hasport.com/store/ is probably considered the industry standard for these mounts.
Don't forget axles and shift linkage when you start getting your shopping list in order.
You will find a ton of information as well as things to go search for on Google if you need more information.
You would need to do the DPFI-to-MPFI conversion as well as additional wiring for the engine. you do NOT use the engine harness from your new engine. Always make changes to your stock engine's harness to adapt it to the new engine.
The OBD0 B16 came with an OBD0 PR3 ECU. If you can get that ECu, then it would probably be the least expensive route.
You also have the option to buy an ECU jumper harness so you can plug into an OBD1 (or OBD2, but OBD1 is generally a better choice) ECU. This opens up a lot of possibilities for what you can use. The OBD1 PR3 and the PW0 both come from B16 motors with the only real difference being the rev limit (PR3-8200 PW0-7800). You can also use several other OBD1 ECUs if you chip them and load on a B16 MAP. Places like http://phearable.net/ offers services to handle this.
The P72 that you suggested may allow the engine to run, but it won't run properly. That was designed for a 1.8 motor that included a special set of intake manifold butterflies (IAB). You could chip it and run the B16 MAP on it, but it might be to your benefit to just get a more appropriate ECU.
For the trans, it would be great if you can find the stock B16 trans to bolt to it. However, that might be tough to find so you can also use a newer hydrolic clutch transmission, but it will require you to do a form of cable-to-hydro clutch conversion. There are a few ways to go about this so I'll leave that to you to research.
You will need engine mounts to hold the B-series motor in place of that stock D-series. http://hasport.com/store/ is probably considered the industry standard for these mounts.
Don't forget axles and shift linkage when you start getting your shopping list in order.
Honda-Tech Member
Joined: Apr 2009
Posts: 540
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From: Spokane, WA
Re: about to a swap need some advice
I would recommend, if you can - try and purchase an OBD0 B16A full swap. It will likely come with everything you will need for the complete change-over.
As mentioned, you will need to convert the car from DPFI to MPFI.
As mentioned, you will need to convert the car from DPFI to MPFI.
Last edited by It Wasn't Me; May 18, 2014 at 08:29 AM.
Thread Starter
Honda-Tech Member
Joined: Dec 2013
Posts: 13
Likes: 0
From: Las Vegas
Re: about to a swap need some advice
Check the sitcky FAQ at the top of this forum -> https://honda-tech.com/forums/showthread.php?t=1508680
You will find a ton of information as well as things to go search for on Google if you need more information.
You would need to do the DPFI-to-MPFI conversion as well as additional wiring for the engine. you do NOT use the engine harness from your new engine. Always make changes to your stock engine's harness to adapt it to the new engine.
The OBD0 B16 came with an OBD0 PR3 ECU. If you can get that ECu, then it would probably be the least expensive route.
You also have the option to buy an ECU jumper harness so you can plug into an OBD1 (or OBD2, but OBD1 is generally a better choice) ECU. This opens up a lot of possibilities for what you can use. The OBD1 PR3 and the PW0 both come from B16 motors with the only real difference being the rev limit (PR3-8200 PW0-7800). You can also use several other OBD1 ECUs if you chip them and load on a B16 MAP. Places like http://phearable.net/ offers services to handle this.
The P72 that you suggested may allow the engine to run, but it won't run properly. That was designed for a 1.8 motor that included a special set of intake manifold butterflies (IAB). You could chip it and run the B16 MAP on it, but it might be to your benefit to just get a more appropriate ECU.
For the trans, it would be great if you can find the stock B16 trans to bolt to it. However, that might be tough to find so you can also use a newer hydrolic clutch transmission, but it will require you to do a form of cable-to-hydro clutch conversion. There are a few ways to go about this so I'll leave that to you to research.
You will need engine mounts to hold the B-series motor in place of that stock D-series. http://hasport.com/store/ is probably considered the industry standard for these mounts.
Don't forget axles and shift linkage when you start getting your shopping list in order.
You will find a ton of information as well as things to go search for on Google if you need more information.
You would need to do the DPFI-to-MPFI conversion as well as additional wiring for the engine. you do NOT use the engine harness from your new engine. Always make changes to your stock engine's harness to adapt it to the new engine.
The OBD0 B16 came with an OBD0 PR3 ECU. If you can get that ECu, then it would probably be the least expensive route.
You also have the option to buy an ECU jumper harness so you can plug into an OBD1 (or OBD2, but OBD1 is generally a better choice) ECU. This opens up a lot of possibilities for what you can use. The OBD1 PR3 and the PW0 both come from B16 motors with the only real difference being the rev limit (PR3-8200 PW0-7800). You can also use several other OBD1 ECUs if you chip them and load on a B16 MAP. Places like http://phearable.net/ offers services to handle this.
The P72 that you suggested may allow the engine to run, but it won't run properly. That was designed for a 1.8 motor that included a special set of intake manifold butterflies (IAB). You could chip it and run the B16 MAP on it, but it might be to your benefit to just get a more appropriate ECU.
For the trans, it would be great if you can find the stock B16 trans to bolt to it. However, that might be tough to find so you can also use a newer hydrolic clutch transmission, but it will require you to do a form of cable-to-hydro clutch conversion. There are a few ways to go about this so I'll leave that to you to research.
You will need engine mounts to hold the B-series motor in place of that stock D-series. http://hasport.com/store/ is probably considered the industry standard for these mounts.
Don't forget axles and shift linkage when you start getting your shopping list in order.
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