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Thread: Why D15B 3stage Vtec is more fast and powerful then D16W9 stage Vtec?

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    Default Why D15B 3stage Vtec is more fast and powerful then D16W9 3stage Vtec?

    assalam o alaikum n here r the stats for both of these engines ..

    D15B 3-Stage VTEC

    Bore and Stroke :75,0?84,5 mm
    Displacement : 1,493 cc (91.1 cu in)
    Rod Length : 137 mm
    Rod/Stroke : 1.62
    Compression : 9.3:1
    Power : 130 PS (96 kW; 128 hp) at 7,000 rpm[6]
    Torque: 139 Nm at 5,300 rpm
    VTEC 12-valve to 16-valve switch over : 3,000 rpm (below such engine speed, the engine is operating in 12-valve mode)[7]
    VTEC high cam switch over : 6,000 rpm
    Redline : 7,200 rpm
    Valvetrain : SOHC, four valves per cylinder
    Connecting rod length : 137 mm
    Connecting rod big end diameter : 48 mm
    Fuel Control : OBD2a
    Head Code : P2J-07
    ECU Code: P2J (small case ECU)***


    D16W9 3-Stage VTEC

    Bore and Stroke: see D16 Series Engines
    Displacement: see D16 Series Engines
    Power: 130 hp (96.2 kW, 131 ps) at 6,600 rpm
    Redline: 7,200 rpm
    Valvetrain: SOHC VTEC3 (4 valves per cylinder)
    1st VTEC Switchover: 2,500 rpm
    2nd VTEC Switchover: 5,500 rpm
    Fuel Control: OBD2

    As the stats aboe show D16W9 should be almost equal in fuel efficiency to D15B but it should be more powerful then it due to being 1600cc and having 130HP where D15B is 1500cc and has 128HP

    I need some experts to clarify it that why does it happen? and I have seen many D15B civics smoking 7th Generation PKDM VTI civics quite easily .. while both on stock

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    I have recently swapped D15B block in mine and thought it would might be good in economy, but its almost equal to D16W9 but yes seems better in power..may be because of higer jappnies quality not low level stuff for Pak ;p
    It's a never ending battle of making your cars better and also trying to be better yourself.

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    D15B 3 stage vtec for economy
    D15B single vtec for performance
    Life is short and very unpredictable just like a Quarter mile .....

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    I have a carby D15B3 and it is equally powerful as a 3 stage.. Go figure!!

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    Actually 3-Stage vtec is multi stage Vtec. In Stage 3 Vtec from 5.2K RPM till rev limit high lift cam lobe is activated. It gives highest airflow. 3 Stage allows engine to run in Economy, Standard and Performance mode. There is a record of D15 VTEC E for achieving 30Kmp/l at constant speed of 60km/h it is Stage 1 Vtec. D16W9 is 2 stage Vtec. With small mods D15 can easily kill D16.

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    D15B in 5th and 6th gen Civics is faster than D16W9 in 7th gen one only because those are lighter and have better traction, thanks to superior suspension.
    It's not right to think that D16W9 is inferior or less powerful. The whole 7th gen package, car+engine, is slower than the earlier ones though.

    Quote Originally Posted by hash4u View Post
    D15B 3 stage vtec for economy
    D15B single vtec for performance
    That theory has its merit only for pre 7th gen Civic. 7th gen D15B is not for power, it's a VTEC-E motor.

    Quote Originally Posted by umairhamza View Post
    I have recently swapped D15B block in mine and thought it would might be good in economy, but its almost equal to D16W9 but yes seems better in power..may be because of higer jappnies quality not low level stuff for Pak ;p
    Higher Japanese quality? You do realize that all the engines are made in Japan anyway? And for the record, D16W9 is better motor, and more powerful, than its Japanese D15, D17 counterparts.

    Quote Originally Posted by gujar96 View Post
    Actually 3-Stage vtec is multi stage Vtec. In Stage 3 Vtec from 5.2K RPM till rev limit high lift cam lobe is activated. It gives highest airflow. 3 Stage allows engine to run in Economy, Standard and Performance mode. There is a record of D15 VTEC E for achieving 30Kmp/l at constant speed of 60km/h it is Stage 1 Vtec. D16W9 is 2 stage Vtec. With small mods D15 can easily kill D16.
    D16W9 IS 3 stage VTEC- similar to those Japanese D15B 3 stage in older models- only BETTER.
    Small mods like what? I think it's right to believe that there's no replacement for displacement, even if it's as little as 100cc. That said, in a similar car, D15 cannot kill D16.

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    D16W9 IS 3 stage VTEC- similar to those Japanese D15B 3 stage in older models- only BETTER.
    Small mods like what? I think it's right to believe that there's no replacement for displacement, even if it's as little as 100cc. That said, in a similar car, D15 cannot kill D16.[/QUOTE]

    You're D16 owner?

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    Quote Originally Posted by gujar96 View Post
    You're D16 owner?
    Do I sound like a fan boy?

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    @uiv
    Do u actually think u can out run a d17 with d16w9 in 7th gen..
    If yes thn u really need to try a 7th gen with d17 again.

    Sent from my GT-S5830 using PW Forums mobile app

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    Quote Originally Posted by Faizan920 View Post
    @uiv
    Do u actually think u can out run a d17 with d16w9 in 7th gen..
    If yes thn u really need to try a 7th gen with d17 again.
    Sent from my GT-S5830 using PW Forums mobile app
    You could be right, but let's just talk figures:

    1. All D17s are VTEC-e (atleast all I've come across, or heard of anywhere).
    2. They do have more slightly torque, but D16 has better output power.
    3. Being a 3 stage VTEC, D16 has an aggressive cam which makes it rev friendly.
    4. D16 has shorter stroke, that should make it reach its redline faster.

    I have a 2005 Civic which is running on its second D17 swap. So I have personally experienced 2 D17 motors, and a D16W9 that came stock.
    In my experience, D17 pulls better on lower speeds but D16 was much more alive above 5000 rpms, especially in 3rd gear and above.
    D17 returns better fuel economy, and better low end torque.


    And, last not but least (this is for gujar96) neither of this engine in 7th gen is faster than my 2000 Civic with D15b 3 stage. I know it does sound like a sore fanboy- but the fact that I'm not bothered at all to prove it on road, should spare me the shame of being taken as one.

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    Quote Originally Posted by uiv View Post
    You could be right, but let's just talk figures:

    1. All D17s are VTEC-e (atleast all I've come across, or heard of anywhere).
    2. They do have more slightly torque, but D16 has better output power.
    3. Being a 3 stage VTEC, D16 has an aggressive cam which makes it rev friendly.
    4. D16 has shorter stroke, that should make it reach its redline faster.

    I have a 2005 Civic which is running on its second D17 swap. So I have personally experienced 2 D17 motors, and a D16W9 that came stock.
    In my experience, D17 pulls better on lower speeds but D16 was much more alive above 5000 rpms, especially in 3rd gear and above.
    D17 returns better fuel economy, and better low end torque.


    And, last not but least (this is for gujar96) neither of this engine in 7th gen is faster than my 2000 Civic with D15b 3 stage. I know it does sound like a sore fanboy- but that fact that I'm not bothered at all to prove it on road, should spare me the shame of being taken as one.
    Bro i m nt a technical guy. But rite now i own both. D17a2 in 2002. Nd a 2006 vti stock, just 54k on clock. I know the power differnc. I drive both.
    U must didnt get a gud condition d17 on swap.

    Sent from my GT-S5830 using PW Forums mobile app

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    Quote Originally Posted by Faizan920 View Post
    Bro i m nt a technical guy. But rite now i own both. D17a2 in 2002. Nd a 2006 vti stock, just 54k on clock. I know the power differnc. I drive both.
    U must didnt get a gud condition d17 on swap.
    Sent from my GT-S5830 using PW Forums mobile app
    See, my D17 does 12-13 km/l in city- and it happily manages to go to 180 on motorway, never pushed further- and I'm running it on fully synthetic with no blows or anything. That's good enough condition for me.
    + I said it's my second D17 for the same car, both could not have been bad.
    + In last couple of years alone, I've bought atleast 7 D engines for myself or friends.

    Anyway, I could be wrong. It's just that in my experience D17 pulls better in first couple of gears, but D16 revs better in later gears.
    Let's keep the discussion healthy and see if other members should share their experience.

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    Quote Originally Posted by uiv View Post
    See, my D17 does 12-13 km/l in city- and it happily manages to go to 180 on motorway, never pushed further- and I'm running it on fully synthetic with no blows or anything. That's good enough condition for me.
    + I said it's my second D17 for the same car, both could not have been bad.
    + In last couple of years alone, I've bought atleast 7 D engines for myself or friends.

    Anyway, I could be wrong. It's just that in my experience D17 pulls better in first couple of gears, but D16 revs better in later gears.
    Let's keep the discussion healthy and see if other members should share their experience.
    Bro mayb. As i m nt sm experinced car enthusiastic, i was just telling wat i felt. I check the top speed till 220kmh once. And aftr that Never again crossed 160kmh. I was just trying to show sm altis guy how i can blow him away. But after i cross new cmpus it becm so embarising.

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    Quote Originally Posted by Faizan920 View Post
    Bro mayb. As i m nt sm experinced car enthusiastic, i was just telling wat i felt. I check the top speed till 220kmh once. And aftr that Never again crossed 160kmh. I was just trying to show sm altis guy how i can blow him away. But after i cross new cmpus it becm so embarising.
    Sent from my GT-S5830 using PW Forums mobile app
    220? I really should be saying: how? But well, why?
    I strongly believe 7th gen Civic would struggle to do 210, that too on a motorway.
    I don't think even 8th gen Civic would do 220, that's the K20 7th and 8th gen Si Civic's top.

    I can only assume that your car is extra fast, otherwise no 7th gen, with any stock D engine, can do 220 on any road.

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    Quote Originally Posted by uiv View Post
    220? I really should be saying: how? But well, why?
    I strongly believe 7th gen Civic would struggle to do 210, that too on a motorway.
    I don't think even 8th gen Civic would do 220, that's the K20 7th and 8th gen Si Civic's top.

    I can only assume that your car is extra fast, otherwise no 7th gen, with any stock D engine, can do 220 on any road.
    It was canal rd nd 3am. I was just pushing the car as much i can. Izat bachany k lye. Altis 1.8 k sath shokhi kr betha tha. Nd had to to prove in front of my crush. Nd end up so embarased

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    Btw i hv hear frm my so called racer frnds rebone endup at 216

    Sent from my GT-S5830 using PW Forums mobile app

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    My car is extra fast nd economicl too. This engine hv sm stuf which is nt suppose to b thr.

    Sent from my GT-S5830 using PW Forums mobile app

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    Quote Originally Posted by uiv View Post
    220? I really should be saying: how? But well, why?
    I strongly believe 7th gen Civic would struggle to do 210, that too on a motorway.
    I don't think even 8th gen Civic would do 220, that's the K20 7th and 8th gen Si Civic's top.

    I can only assume that your car is extra fast, otherwise no 7th gen, with any stock D engine, can do 220 on any road.


    Well i can't say about anyone else's car but back when i was in Pakistan i had Civic Vti 2005 which i bought brand new and i raced against corolla 1.6 se saloon 2005 and corolla was chasing dust once a young boy of my street came and said meri xli zaida bhagti hai it was 2010 corolla and that too. Only 1ZZ-FE Toyota Altis 2006 gave a bit tough time to me as it was 1800CC with hardly 15k kms and mine was about 60k kms but my car went neck to neck with it till 160 then it K.O me. Just a matter of fact i have taken that stock D16W9 to 205km/h on motorway and corolla 1.3-1.6L category i doubt go till this mark as i remember there was a friend on pw also who had corolla 4AFE and i also won from him in drag. And yes i respect civic 6th gen and your fast D15 2000 civic too.

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    Quote Originally Posted by gujar96 View Post
    Well i can't say about anyone else's car but back when i was in Pakistan i had Civic Vti 2005 which i bought brand new and i raced against corolla 1.6 se saloon 2005 and corolla was chasing dust once a young boy of my street came and said meri xli zaida bhagti hai it was 2010 corolla and that too. Only 1ZZ-FE Toyota Altis 2006 gave a bit tough time to me as it was 1800CC with hardly 15k kms and mine was about 60k kms but my car went neck to neck with it till 160 then it K.O me. Just a matter of fact i have taken that stock D16W9 to 205km/h on motorway and corolla 1.3-1.6L category i doubt go till this mark as i remember there was a friend on pw also who had corolla 4AFE and i also won from him in drag. And yes i respect civic 6th gen and your fast D15 2000 civic too.
    u had a prosmatic?

    Sent from my GT-S5830 using PW Forums mobile app

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    Quote Originally Posted by Faizan920 View Post
    u had a prosmatic?

    Sent from my GT-S5830 using PW Forums mobile app
    No! VTi Oriel Manual

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