which motor is faster when boosted with the same psi, b18b1 or b16?
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From: South Central
which motor is faster when boosted with the same psi, b18b1 or b16?
There is an arugment in the EG forum about this and the moderator (REALLY smart guy 
) said that the b16 would beat the b18b in a 1/4 or auto x because the b16 makes more hp, but the b18b makes a shitload more torque than the b16, so i always thought that if both both engines were in hatches for example and both ran the same boost the b18b1 would win. Who is right and who is wrong????
) said that the b16 would beat the b18b in a 1/4 or auto x because the b16 makes more hp, but the b18b makes a shitload more torque than the b16, so i always thought that if both both engines were in hatches for example and both ran the same boost the b18b1 would win. Who is right and who is wrong????
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Re: which motor is faster when boosted with the same psi, b18b1 or b16? (1.8 HB)
Hrmm... You're saying autoxing right?
I would say the B18; for the lower end torque. It will rip you out of the hole, unlike the torqueless wonder B16.
However, for top end I would give it to the B16. Drag wise, I would go w/ the B16, and here's why:
1. Better aftermarket support
2. ITR/CTR cams, ITR TB/Intake Mani
3. Weight (If you're **** about it)
4. VTEC
IMHO, I would go w/ the B16; but that's cuz I like 3rd GeEr VT3CH.
jB
I would say the B18; for the lower end torque. It will rip you out of the hole, unlike the torqueless wonder B16.
However, for top end I would give it to the B16. Drag wise, I would go w/ the B16, and here's why:
1. Better aftermarket support
2. ITR/CTR cams, ITR TB/Intake Mani
3. Weight (If you're **** about it)
4. VTEC
IMHO, I would go w/ the B16; but that's cuz I like 3rd GeEr VT3CH.
jB
Thread Starter
Joined: Jan 2002
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From: South Central
Re: which motor is faster when boosted with the same psi, b18b1 or b16? (PelowisheshewascoolTudo)
No, no
ok who will win at the 1/4 mile?
1992 CX hatch with STOCK b18b on 6psi
OR
1992 CX hatch with STOCK b16a2 on 6psi
I hope that's better?
ok who will win at the 1/4 mile?
1992 CX hatch with STOCK b18b on 6psi
OR
1992 CX hatch with STOCK b16a2 on 6psi
I hope that's better?
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Honda-Tech Member
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From: Northern, CA, usa
Re: which motor is faster when boosted with the same psi, b18b1 or b16? (1.8 HB)
b18b1..can handle the pressure...all those b16a2's blown cause it cant handle the pressure from greddy turbo kits.........
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From: Scottsdale, Arizona, USA
Re: which motor is faster when boosted with the same psi, b18b1 or b16? (egMee)
b16 because if you can follow what this guy is saying you will understand. this is what should be used when determining which motor to purchase for boost. unless of course you're gonna do a rebuild 
http://www.hondalife.com/effectivecompression.htm
http://www.hondalife.com/effectivecompression.htm
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From: Fort Worth, TX
Re: which motor is faster when boosted with the same psi, b18b1 or b16? (AZcivicHeat)
That above link contains some really neat, but false math.
A motor does not make any power while sitting still. Therefore static compression ratio means NOTHING when it comes to analyzing how an engine will perform.
Static compression ratio does tend to give insight on DYNAMIC COMPRESSION RATIO - which dictates how an engine performs.
I can give you two engines with exactly the same static compression ratio, and just by changing the valve events you can drastically change dynamic compression ratio(which changes with engine RPM).
Static compression ratio is used as a "rule of thumb" because dynamic compression ratio is extremely hard to quantify. So oversimplification is not always bad.
A motor does not make any power while sitting still. Therefore static compression ratio means NOTHING when it comes to analyzing how an engine will perform.
Static compression ratio does tend to give insight on DYNAMIC COMPRESSION RATIO - which dictates how an engine performs.
I can give you two engines with exactly the same static compression ratio, and just by changing the valve events you can drastically change dynamic compression ratio(which changes with engine RPM).
Static compression ratio is used as a "rule of thumb" because dynamic compression ratio is extremely hard to quantify. So oversimplification is not always bad.
Joined: Oct 2002
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From: VIP, Posse, usa
Re: which motor is faster when boosted with the same psi, b18b1 or b16? (Def)
The way I understand things, a better flowing head will flow more air at a given psi. A poorly flowing head will cause the air pressure to build up (more psi), because it cannot get on through to the otha side as well. So a b18a head might flow the same amount of air at 8psi that a b16 head flows at 6psi. B16 has larger valves, more lift and duration probably, much better flowing ports... etc (not even getting into compression differences). So b16 gets my vote for more horsies at same psi.
ed: Not saying one is better, just saying it will make more peak HP.
[Modified by Vanilla Ic3, 7:53 AM 10/23/2002]
ed: Not saying one is better, just saying it will make more peak HP.
[Modified by Vanilla Ic3, 7:53 AM 10/23/2002]
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