20b sound like 26b?
04-11-08, 08:59 PM
#1
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20b sound like 26b?
Can you make a 20b sound like a 26b with any sort of modifications? I'm assuming not, since it's a smaller engine. I always see threads talking about the pro's and cons of a 26b. There don't seem to be many pro's. Here's a video of the kinda sound I'm talking about:
http://www.youtube.com/watch?v=Au7F2ttEXWU
http://www.youtube.com/watch?v=Au7F2ttEXWU
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04-13-08, 12:01 AM
#8
Derwin
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That made absolutely no sense.
A 26b sounds like it sounds because of the amount of combustion chambers it has. Just as a v12 sounds the way it sounds.
Given equivalent displacement the more combustion chambers (I don't want to say cylinders) the sound produced by the engine will become sharper. Think how the 787b sounds like an F1.
Relatively, a Caparo T1 doesn't sound like a Corvette although they are both v8 huge displacement difference. Also and F1 doesn't sound like a Lamborghini, Ferrari etc.
A 26b sounds like it sounds because of the amount of combustion chambers it has. Just as a v12 sounds the way it sounds.
Given equivalent displacement the more combustion chambers (I don't want to say cylinders) the sound produced by the engine will become sharper. Think how the 787b sounds like an F1.
Relatively, a Caparo T1 doesn't sound like a Corvette although they are both v8 huge displacement difference. Also and F1 doesn't sound like a Lamborghini, Ferrari etc.
04-13-08, 04:53 AM
#9
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...although I wanna slap the guy who wants a fricken' dissertation on picking a full turbo upgrade *and* EMS *and* tuning tips!
To me, the 20B sounds like a cross between a Grand National V6 turbo and a Ferrari V12.
The 20B does fire 3 times per "crank" revolution, thus it has that V6 sound to it.
The V12 is just a pair of V6's firing to reinforce each other.
The R26B is a 4 rotor that fires 4 times per "crank" revolution.
Thus, to me, it sounds like a high strung V8.
Think current F1 motors...
-Ted
04-13-08, 09:00 AM
#10
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There are other factors aside from the number of rotors that have an influence on engine sound.
1. Most 4-rotors are P-ported. That creates a different tone due to the port overlap and different intake port shape
2. Most 4-rotors are N/A. Not having a turbo in the exhaust lets more detail get through to the tailpipe.
3. Most 4-rotors have a short sheet metal intake manifold. Just as a tubular exhaust manifold allows more sound to come through (in the engine bay) the same is true with a sheet metal vs cast intake manifold.
4. A lot of 4-rotors use higher compression rotors. Typically creates a higher strung sound.
I have heard a few single seat N/A P-ported 3-rotor cars and they sound more like the red FD 4-rotor FD in the clip above than a 20b with a turbo. However, more is always better!
1. Most 4-rotors are P-ported. That creates a different tone due to the port overlap and different intake port shape
2. Most 4-rotors are N/A. Not having a turbo in the exhaust lets more detail get through to the tailpipe.
3. Most 4-rotors have a short sheet metal intake manifold. Just as a tubular exhaust manifold allows more sound to come through (in the engine bay) the same is true with a sheet metal vs cast intake manifold.
4. A lot of 4-rotors use higher compression rotors. Typically creates a higher strung sound.
I have heard a few single seat N/A P-ported 3-rotor cars and they sound more like the red FD 4-rotor FD in the clip above than a 20b with a turbo. However, more is always better!
Last edited by CMonakar; 04-13-08 at 09:06 AM.
04-15-08, 12:29 PM
#11
I've discovered, on Youtube, that a high strung 3 cylinder sounds kinda like a 20B. This quite honestly sounds like a 20B drag racing against a 2 rotor. It's freaky. http://www.youtube.com/watch?v=kqazl...eature=related
A 20B powered plane? Well, kinda maybe. Sorta similar anyway. http://www.youtube.com/watch?v=LP9WNvYDrRY
I've also discovered that I really dig the sound of a 5 cylinder. Whether it's an Audi or a radial engine.
Audi on a dyno (sounds kinda like the light cycle on Tron)
http://www.youtube.com/watch?v=tA2KVGe8KW0
Audis free reving
http://www.youtube.com/watch?v=oO_ow...eature=related
http://www.youtube.com/watch?v=Gzjsd...eature=related
5 cylinder radial engines on a work bench
http://www.youtube.com/watch?v=YQnBW...eature=related
http://www.youtube.com/watch?v=b6p1UYJ9zwg&NR=1
5 cylinder radials in planes
http://www.youtube.com/watch?v=VcEgO...eature=related
I swear this one almost sounds like a peripheral port uh 5 rotor? at 2:45. It actually braps.
http://www.youtube.com/watch?v=oVmEW...eature=related
http://www.youtube.com/watch?v=ylCtX...ature=related#
These 5 cylinder engines sound really interesting. Since the 3 cylinder engines tend to sound like 20Bs, is it logical to assume that a 5 cylinder might sound like a 5 rotor?
Has anyone ever built a 5 rotor? Shaft length can becaome an issue, but just keep the redline reasonable and I don't see why it couldn't be reliable.
A 20B powered plane? Well, kinda maybe. Sorta similar anyway. http://www.youtube.com/watch?v=LP9WNvYDrRY
I've also discovered that I really dig the sound of a 5 cylinder. Whether it's an Audi or a radial engine.
Audi on a dyno (sounds kinda like the light cycle on Tron)
http://www.youtube.com/watch?v=tA2KVGe8KW0
Audis free reving
http://www.youtube.com/watch?v=oO_ow...eature=related
http://www.youtube.com/watch?v=Gzjsd...eature=related
5 cylinder radial engines on a work bench
http://www.youtube.com/watch?v=YQnBW...eature=related
http://www.youtube.com/watch?v=b6p1UYJ9zwg&NR=1
5 cylinder radials in planes
http://www.youtube.com/watch?v=VcEgO...eature=related
I swear this one almost sounds like a peripheral port uh 5 rotor? at 2:45. It actually braps.
http://www.youtube.com/watch?v=oVmEW...eature=related
http://www.youtube.com/watch?v=ylCtX...ature=related#
These 5 cylinder engines sound really interesting. Since the 3 cylinder engines tend to sound like 20Bs, is it logical to assume that a 5 cylinder might sound like a 5 rotor?
Has anyone ever built a 5 rotor? Shaft length can becaome an issue, but just keep the redline reasonable and I don't see why it couldn't be reliable.
04-15-08, 02:16 PM
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ok to go back to the first question.. yes.
...Sort of.
The 20B eshaft is set at a 180 degrees =/\=\/=/\
if you get a custon shaft set at 120 each it will have a firing equal to a Inline NINE.
the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder.
So the closest you get is a 9 cylinder by getting a custom shaft, custom counter weight and some good tuning...or horrible to make it sputter more for dramatic effect.
...Sort of.
The 20B eshaft is set at a 180 degrees =/\=\/=/\
if you get a custon shaft set at 120 each it will have a firing equal to a Inline NINE.
the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder.
So the closest you get is a 9 cylinder by getting a custom shaft, custom counter weight and some good tuning...or horrible to make it sputter more for dramatic effect.
04-15-08, 08:29 PM
#14
Lives on the Forum
the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder.
Someone get these newbs to STFU!
-Ted
04-15-08, 08:53 PM
#15
There were no survivors
04-16-08, 08:39 AM
#17
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Good idea Dave, maybe we can start a product line to go along with the BOV sound speakers you can get on ebay. Thank of the prospects! We'll be able to pay for these 20Bs no sweat with all that dough.
04-16-08, 12:24 PM
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Can you make a 20b sound like a 26b with any sort of modifications? I'm assuming not, since it's a smaller engine. I always see threads talking about the pro's and cons of a 26b. There don't seem to be many pro's. Here's a video of the kinda sound I'm talking about:
http://www.youtube.com/watch?v=Au7F2ttEXWU
http://www.youtube.com/watch?v=Au7F2ttEXWU
Hope that helps
04-16-08, 01:17 PM
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forgive me for being completly retarded back there.
Quote:
"ok to go back to the first question.. yes.
...Sort of." REV 25% faster...only way
"The 20B eshaft is set at a 180 degrees" <= RETARDED... Never tore my 20B apart but i will put money it that it is a 120* and will always act like an I9.
"the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder." <=It is the 180* 4 rotors made by slamming 2 13b's together that I was messed up in thinking of."
Oh well, not that it really matter to 90% of the people here that will never even own a 20b or even see a 4-rotor shaft.
Quote:
"ok to go back to the first question.. yes.
...Sort of." REV 25% faster...only way
"The 20B eshaft is set at a 180 degrees" <= RETARDED... Never tore my 20B apart but i will put money it that it is a 120* and will always act like an I9.
"the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder." <=It is the 180* 4 rotors made by slamming 2 13b's together that I was messed up in thinking of."
Oh well, not that it really matter to 90% of the people here that will never even own a 20b or even see a 4-rotor shaft.
04-16-08, 01:46 PM
#22
Junior Member
Thread Starter
ok to go back to the first question.. yes.
...Sort of.
The 20B eshaft is set at a 180 degrees =/\=\/=/\
if you get a custon shaft set at 120 each it will have a firing equal to a Inline NINE.
the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder.
So the closest you get is a 9 cylinder by getting a custom shaft, custom counter weight and some good tuning...or horrible to make it sputter more for dramatic effect.
...Sort of.
The 20B eshaft is set at a 180 degrees =/\=\/=/\
if you get a custon shaft set at 120 each it will have a firing equal to a Inline NINE.
the 26B sounds the way it does because people have shafts MADE at a 90 degree firing arrangement. so basically it sounds like a 12 cylinder.
So the closest you get is a 9 cylinder by getting a custom shaft, custom counter weight and some good tuning...or horrible to make it sputter more for dramatic effect.
04-16-08, 05:27 PM
#23
C088
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04-17-08, 03:04 PM
#24
Shows you people will buy anything.
04-17-08, 10:03 PM
#25
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Thread Starter
Reason I asked is because most people want a 26b for its 700hp. I want it because of the sound. Can't make a 20b sound the same? Solves my problem easily. Some of you who've said Ted's answer was the best are right. Straight and to the point. Thanks.