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So my dad and I just got done rebuilding a D15B2 and I just wanted to brag on how great the BP is in comparison. Who would want different sized main bearings for each main cap or even solid lifters that you MUST adjust. Thought I would brag on the beautiful simplicities of Mazda engineering. Thats all.
 

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You think a d15b2 is complicated? Come on now :p. Honda motors rock...

I'm loving working on my miata... but the honda motors are of a higher caliber in terms of engineering (comparing similar generations of motors, b6/bp to d16/b16/b18etc...). More power in the same size package... and reliably putting out more power across the board in the compareable 1.8 motors from honda/mazda.

That being said... I still look forward to working on my B6 when its time for that stage of my turbo build. I am enjoying the FR layout more than my typical FF cars ;)

Oh... if u want quick and easy... try using ACLs next time... they are a Honda green bearing and generally in the middle of spec. Its nice to have the exact... but its nice to just drop in midrange bearings too :p
 

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I would personally rather my car's engine have select fitted parts from the factory, insuring proper rod bearing/main bearing/piston to cylinder wall clearance and valve lash specifications. I would not, however brag on an company's engineering feat of making an engine easier to assemble at the cost of inconsistent clearances. On another note, I do like the BP engine, not bashing it at all.

This is just my opinion, but I am not concerned with ease of building or assembly.
 

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Those things are great, but a miata beats the hell out of a FWD expensive econobox...
 

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Honda K series puts out over 220 with headers na. I wish my miata had that kind of power potential before resorting to turbo....of course I would want to retain rwd though :)
 

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[epic said:
@ Wed Apr 04, 2007 8:38 pm]
Honda K series puts out over 220 with headers na. I wish my miata had that kind of power potential before resorting to turbo....of course I would want to retain rwd though :)
F20
SR20
V8

:mrgreen:

engine swaps FTW

why waste money on a swap when the BP is a great engine and with a turbo can make some great power.
 

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because he did say "before I resort to turbo"

I took that as "I like N/A"

besides, some swaps, if done right, really work well for the miata.

not to mention it would make for great F&F moments with ricer kids, until you popped the hood and showed them your B18/F20/whatever.
 

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haha, I don't want to do an engine swap....that one at least. (currently in the works of a FE3-T swap ;)) I was just reaffirming Honda superiority in terms of gasoline motor engineering. They need some more rwd cars though :(
 

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[epic said:
@ Wed Apr 04, 2007 8:38 pm]
Honda K series puts out over 220 with headers na. I wish my miata had that kind of power potential before resorting to turbo....of course I would want to retain rwd though :)
F20
SR20
V8

:mrgreen:

engine swaps FTW

edit: ha, actually, there is a company that makes RWD transmissions for honda's B- and H-series. http://www.gforcetransmissions.com/tran_gf5r-rev.asp
Too bad they're hella expensive :( I always thought a B16 in a Miata would be awesome.

The BP seems to be an OK engine, it's just somewhat sub-par in terms of output as compared to its contemporaries.
 

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Take a look at the ports... poor thing can't breathe. My boosted 1.6L honda has bigger ports... it kinda suprised me to be honest.

I'm looking forward to my boosted B6 though.

And... I had a very fun/fast/reliable b18 honda... that was lapping turbo miatas ;) ... then again... I think my turbo miata build will be loads more fun (and faster) than the fwd setup.
 

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neogenesis2004 said:
They need some more rwd cars though :(
+1

if Honda made an RWD CRX/S2k-ish car back in the day I'd probably be driving that right now.

LUV2TURN said:
too bad they're hella expensive Sad I always thought a B16 in a Miata would be awesome.

The BP seems to be an OK engine, it's just somewhat sub-par in terms of output as compared to its contemporaries.
yeah tell me about it. for some reason I've wanted a turbo B18 swap ever since I stumbled across that site. almost more than an ITB+Turbo F20C :twisted:

I wonder if there's any weight savings in the swap....
 

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what would be needed for a honda B16 or B18 swap? what tranny could be used?

sorry i dont know much about honda's but alot of people have good things to say about them.
 

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I think weight differences would be minimal. If I'd have to take a guess, the Honda B-series is Iron block, Aluminum head like the BP motors.

Thing is, if you were to take a B16, for example, and swap it into a Miata, the intake and exhaust sides are opposite of the Mazda motors. However, I think that that could be dealt with without much difficulty. The two other main hurdles I see in the swap is a) transmission: I'm assuming you could have a spacer/adapter made to bolt the Mazda tranny to the Honda motor and b) motor mounts could be tricky since the B-series is made for FWD vehicles. However, if I understand correctly, the BP engines were also originally intended for FWD vehicles, ala Protege/Escort/MX-3/323 (I think...)

I'd say it's completely possible, and I'd like to try it one day. The main thing holding me back is lack of space to keep a 2nd vehicle (and money, of course, but that's a given)
 

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I think weight differences would be minimal. If I'd have to take a guess, the Honda B-series is Iron block, Aluminum head like the BP motors.

Thing is, if you were to take a B16, for example, and swap it into a Miata, the intake and exhaust sides are opposite of the Mazda motors. However, I think that that could be dealt with without much difficulty. The two other main hurdles I see in the swap is a) transmission: I'm assuming you could have a spacer/adapter made to bolt the Mazda tranny to the Honda motor and b) motor mounts could be tricky since the B-series is made for FWD vehicles. However, if I understand correctly, the BP engines were also originally intended for FWD vehicles, ala Protege/Escort/MX-3/323 (I think...)

I'd say it's completely possible, and I'd like to try it one day. The main thing holding me back is lack of space to keep a 2nd vehicle (and money, of course, but that's a given)
Biggest problem with a B16 is that it spins backwards, so you'd have 5 reverse gears and 1 hella tall forward gear.
 

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I don't really see the need in a swap, the BP engines seem to make good power with a turbo, which is about the same cost as an engine swap, maybe less. I suppose if I really had my choice it would be a beefy all aluminum v6 or I4. I Don't see why a b16/b18 would be an advantage over a worked BP, maybe someone can clear this up for me.
 
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