Honda I-4 smoothness
 

How smooth is the I4 in Fit vs Civic DX/LX/EX vs Accord vs Civic Si ?
No extolling of the virtues of the V6 anchors, please. Keep your V6
boats to yourselves.
Thanks.
P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
more compact or what?

Re: Honda I-4 smoothness
 

Body Roll wrote:
> How smooth is the I4 in Fit vs Civic DX/LX/EX vs Accord vs Civic Si ?
> No extolling of the virtues of the V6 anchors, please. Keep your V6
> boats to yourselves.
> Thanks.
> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>
not sure about the fit or the new si's, but the accords have harmonic
balancers and are much smoother than the standard smaller engines.
theres no smoothness advantage to a v4, and considerable cost increase.
[two heads, two cams, etc., etc.]

if you want to know the deal on what affects smoothness, borrow a copy
of the bosch automotive handbook from your local library. if they don't
have it, they can get an inter-library transfer for you. it gives
analysis of all the main cylinder configurations, their vibration modes,
and what can be done to smooth them out. then you'll see why the
dynamic balancing employed by honda on the accord works. the book's got
a bunch of math in it, but even if that's not what you want, the
diagrams show the principles very well.

Re: Honda I-4 smoothness
 

Body Roll wrote:
> How smooth is the I4 in Fit vs Civic DX/LX/EX vs Accord vs Civic Si ?
> No extolling of the virtues of the V6 anchors, please. Keep your V6
> boats to yourselves.
> Thanks.
> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>
not sure about the fit or the new si's, but the accords have harmonic
balancers and are much smoother than the standard smaller engines.
theres no smoothness advantage to a v4, and considerable cost increase.
[two heads, two cams, etc., etc.]

if you want to know the deal on what affects smoothness, borrow a copy
of the bosch automotive handbook from your local library. if they don't
have it, they can get an inter-library transfer for you. it gives
analysis of all the main cylinder configurations, their vibration modes,
and what can be done to smooth them out. then you'll see why the
dynamic balancing employed by honda on the accord works. the book's got
a bunch of math in it, but even if that's not what you want, the
diagrams show the principles very well.

Re: Honda I-4 smoothness
 

Body Roll wrote:
> How smooth is the I4 in Fit vs Civic DX/LX/EX vs Accord vs Civic Si ?
> No extolling of the virtues of the V6 anchors, please. Keep your V6
> boats to yourselves.
> Thanks.
> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>
not sure about the fit or the new si's, but the accords have harmonic
balancers and are much smoother than the standard smaller engines.
theres no smoothness advantage to a v4, and considerable cost increase.
[two heads, two cams, etc., etc.]

if you want to know the deal on what affects smoothness, borrow a copy
of the bosch automotive handbook from your local library. if they don't
have it, they can get an inter-library transfer for you. it gives
analysis of all the main cylinder configurations, their vibration modes,
and what can be done to smooth them out. then you'll see why the
dynamic balancing employed by honda on the accord works. the book's got
a bunch of math in it, but even if that's not what you want, the
diagrams show the principles very well.

Re: Honda I-4 smoothness
 

Body Roll wrote:
> How smooth is the I4 in Fit vs Civic DX/LX/EX vs Accord vs Civic Si ?
> No extolling of the virtues of the V6 anchors, please. Keep your V6
> boats to yourselves.
> Thanks.
> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>
not sure about the fit or the new si's, but the accords have harmonic
balancers and are much smoother than the standard smaller engines.
theres no smoothness advantage to a v4, and considerable cost increase.
[two heads, two cams, etc., etc.]

if you want to know the deal on what affects smoothness, borrow a copy
of the bosch automotive handbook from your local library. if they don't
have it, they can get an inter-library transfer for you. it gives
analysis of all the main cylinder configurations, their vibration modes,
and what can be done to smooth them out. then you'll see why the
dynamic balancing employed by honda on the accord works. the book's got
a bunch of math in it, but even if that's not what you want, the
diagrams show the principles very well.

Re: Honda I-4 smoothness
 

Body Roll wrote:

> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>

Probably due to costs. A V style engine means two heads, the need to
join the exhaust together, etc. Also a V-4 is not inherently more
balanced than a straight 4.

John

Re: Honda I-4 smoothness
 

Body Roll wrote:

> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>

Probably due to costs. A V style engine means two heads, the need to
join the exhaust together, etc. Also a V-4 is not inherently more
balanced than a straight 4.

John

Re: Honda I-4 smoothness
 

Body Roll wrote:

> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>

Probably due to costs. A V style engine means two heads, the need to
join the exhaust together, etc. Also a V-4 is not inherently more
balanced than a straight 4.

John

Re: Honda I-4 smoothness
 

Body Roll wrote:

> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?
>

Probably due to costs. A V style engine means two heads, the need to
join the exhaust together, etc. Also a V-4 is not inherently more
balanced than a straight 4.

John

Re: Honda I-4 smoothness
 

"> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?

Pardon my ignorance as it's never crossed my mind, waht cars have V-4s?

Re: Honda I-4 smoothness
 

"> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?

Pardon my ignorance as it's never crossed my mind, waht cars have V-4s?

Re: Honda I-4 smoothness
 

"> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?

Pardon my ignorance as it's never crossed my mind, waht cars have V-4s?

Re: Honda I-4 smoothness
 

"> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> more compact or what?

Pardon my ignorance as it's never crossed my mind, waht cars have V-4s?

Re: Honda I-4 smoothness
 

MAT wrote:
> "> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> > more compact or what?
>
> Pardon my ignorance as it's never crossed my mind, waht cars have V-4s?

Not any that I know of. In fact very few bikes have V-4 either.

Re: Honda I-4 smoothness
 

MAT wrote:
> "> P.S. Why there are no V-4 in Honda cars? No carbs - no pain. I4s are
> > more compact or what?
>
> Pardon my ignorance as it's never crossed my mind, waht cars have V-4s?

Not any that I know of. In fact very few bikes have V-4 either.