Thread: D15B vs D15Z1
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Old 01-14-2012, 11:22 PM   #1 (permalink)
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Serenity - '88 Honda Crx Si
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D15B vs D15Z1

So I've needed to replace the engine in my 88 crx si and after doing a bit of research it seemed like the d15z1 with the hf transmission was the way to go. But just as I was about to get the engine, it got snatched up and I ended up with the 3 stage VtecE d15b instead, on t the advice of my very knowledgeable "car-guy." Basically he was saying that while B probably wasn't quite as fuel efficient, it wasn't much of a difference and well worth the additional hp. My question is what kind of economy could I expect from both of these engines in an otherwise stock Crx Si, and whether I should still go ahead with the HF tranny with the B?

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