d16 boring
d16 boring
Alright guys I have a quick question, my friend has a 97 ex, w/ a d16 in it. He recently had to rebuild his motor so while they were in there , he had them bore it 40 over. So my question is what liter is his engine now?
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really, it would still be a 1.6 liter.
the stock bore stroke is 75x90. with a 40 overbore, i'm assuming that's a .40 difference. and 75.40x90 is only about a 20cc difference. so 1590 stock vs 1608 with his overbore.
so, 1.6liter
the stock bore stroke is 75x90. with a 40 overbore, i'm assuming that's a .40 difference. and 75.40x90 is only about a 20cc difference. so 1590 stock vs 1608 with his overbore.
so, 1.6liter
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Generally, when you say "40 over" you mean .040." Assuming that is what he means, an increased bore from 75mm to 76mm will increase the displacement slightly.
.040"=1.016mm
.040"=1.016mm
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Rep Power: 338 it still wont help too much...... and the old D series..... well, it's a D series, still wont respond as well to a B series.... but they did have variable valve timing on the intake side.....
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Originally Posted by Arith
I heard the d16 responds better to mods than the d17...true?
is there a d16 (6th gen site)?
is there a d16 (6th gen site)?
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Originally Posted by S2000man01
really, it would still be a 1.6 liter.
the stock bore stroke is 75x90. with a 40 overbore, i'm assuming that's a .40 difference. and 75.40x90 is only about a 20cc difference. so 1590 stock vs 1608 with his overbore.
so, 1.6liter
the stock bore stroke is 75x90. with a 40 overbore, i'm assuming that's a .40 difference. and 75.40x90 is only about a 20cc difference. so 1590 stock vs 1608 with his overbore.
so, 1.6liter
the engine is 76x90
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Rep Power: 0 It's a little less than 3% increase in total displacment. Presuming a linear relationship between displacment and hp (a safe assumption on this scale), it should be good for about a 3% increase in hp.
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Originally Posted by Boilermaker1
Its a 1mm overbore. .040 overbore is forty thousanths of an inch, not millimeters.
the engine is 76x90
the engine is 76x90
even then it's like a 1.64 liter engine instead of a 1.59 liter engine.
slight increase but not much.
as for the power he'll gain? minimal. maybe 7hp?
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Rep Power: 423 I don't know what kind of an increase it is. Usually you overbore an engine when you rebuild it to give yourself clean cylinder walls to work the new rings into. As far as making more power... look up the NASA Honda Challenge rules for the H4 class. Whatever that allows you to do to a D16 is good for about 140 HP. I know you can overbore it, but I don't know what other motor work can be done. I would speculate its pretty mild, given the rules are usually intended to keep it pretty uniform and semi-affordable.
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Originally Posted by ajhdragon
omg the d16 is way more responsive to mods than the d17, but then again theve been out since 92 and have obd-1 and hondata, so alot better aftermarket.
get a p28 and have it chipped...
I have a frankenmotor with obd1 conversion and a p28...
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