question

[Riegz0r]

hi i have a question, i not understand this post: https://hondaswap.com/swap-articles/non-recommended-motor-swaps-29125/

quote: We don't recommend these motors for several reasons. The H-series will require much chassis denting, and while that may be cool to do on a race car, it makes your bay look like crap and can lead to a weaker engine bay. In addition, you wont have room for A/C or power steering if those options are required by you.The other motors are OBD-2, requiring a much greater challenge in wiring. The B- and D-series OBD-2 motors can be installed into the chassis fairly easily with a mount kit, but as stated above, the wiring is an absolute nightmare.

5th gen

* B16A SiR
* B17A
* B18A
* ZC/D16A6/8/9
* any C-series motor

We don't recommend these motors for several reasons as well. These motors are OBD-0, making it a hard swap into a car wired for OBD-1. It is easier to go backwards (as in, taking a 5th gen motor into a 4th gen chassis) than forwards. Remember, its all about backwards compatibility, not forwards.
While we haven't listed the H-series motors as a non-recommended swap, we would like to say a few words about it. An H-series motor is generally 60-80 lbs heavier than a B-series motor. This adds to the already poor F/R weight distribution of Civics/Integra's. While it can be solved with a set of stiffer springs and tighter shocks up front, it is still not a good choice for an AutoX or road course car. For drag, it excels. It's heavier, putting more weight on the front wheels to help with traction. In addition to the weight factor, the chassis will need to be modified a little bit to fit it. Some things on the fire wall will need to be moved (such as brake master cylinder) off the wall. The drivers side quarter panel will also need to be dented in a little bit so the crank pulley doesn't rub.

6th gen

* B16A SiR
* B16A3
* B17A
* B18A
* 94-95 B18C
* 94-95 B18B
* ZC/D16A6/8/9
* any C-series motor
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ok, this motors are not recommended on the 5th and 6th gen or this motors are the only's that recommended on this generations?

 

[phunky.buddha]

The article is pretty old- we need to update it.

But basically, you don't want to put an engine into a car that's a previous OBD revision than the chassis. The wiring will be more difficult, and it's hell to pass emissions testing unless you update all the emissions control equipment to the chassis' standard- and by the time you've done that, you might as well have spent the cash on the newer engine.

Other recommendations based on weight and difficulty of the physical swap will have changed since we filed that post- more swap kits are available now, H series engines have kits to put them onto D series and B series transmissions, J swaps are becoming common... you get the idea.