Are There Two Different JDM D15B VTEC Engines?
01-11-2005, 06:57 AM
#1
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Are There Two Different JDM D15B VTEC Engines?
I touched on this briefly in another topic, but here's my question:
Are there not two different JDM D15B VTEC engines?
I recall reading an elaborate 3-stage VTEC article linked from a topic here on H-T, and it showed a 1.5L D15B VTEC engine with a really cool 3-stage VTEC head on it. They rated the engine at 130hp, but then I noticed that this was an engine from an EK model and to me that doesn't seem like it'd be very common.
With all of the imported D15B VTEC engines rated at "130hp" it got me wondering if all of these are the true 130hp 3-stage VTEC engines. It also made me wonder if the majority of the D15b VTECs are in fact not the cool 3-stage VTEC ones, then what are they really and how much power do they really make?
I saw someone state that the D16Z6 is not as good as a D15B VTEC, but I'd have to say the edge would still be with the D16Z6 because of the added cc and torque/hp.
Basically I'm thnking out loud on this one, and I've been wondering this for a long time since reading that article. It makes me think people have been getting kind of shafted thinking they're getting more hp than a 1.6L, when in fact the ratings are wrong.
Thoughts?
Are there not two different JDM D15B VTEC engines?
I recall reading an elaborate 3-stage VTEC article linked from a topic here on H-T, and it showed a 1.5L D15B VTEC engine with a really cool 3-stage VTEC head on it. They rated the engine at 130hp, but then I noticed that this was an engine from an EK model and to me that doesn't seem like it'd be very common.
With all of the imported D15B VTEC engines rated at "130hp" it got me wondering if all of these are the true 130hp 3-stage VTEC engines. It also made me wonder if the majority of the D15b VTECs are in fact not the cool 3-stage VTEC ones, then what are they really and how much power do they really make?
I saw someone state that the D16Z6 is not as good as a D15B VTEC, but I'd have to say the edge would still be with the D16Z6 because of the added cc and torque/hp.
Basically I'm thnking out loud on this one, and I've been wondering this for a long time since reading that article. It makes me think people have been getting kind of shafted thinking they're getting more hp than a 1.6L, when in fact the ratings are wrong.
Thoughts?
01-11-2005, 07:05 AM
#2
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Re: Are There Two Different JDM D15B VTEC Engines? (B18C5-EH2)
Okay I just got off the phone with a well-respected engine importer in the ATL (Pacific engine Co.) and we were discussing this subject.
He has a few books with all of the weird-*** JDM engines and their block codes, hp ratings, etc.
In the 1994-1995 book the D15B VTEC is rated at:
120hp@6800rpm
So what I assumed is correct I guess. The D15B VTEC is more like a 120hp engine than a 130hp engine.
Also intersting is the ZC 1.6L VTEC:
130hp@6600rpm
Again I've always contended that the 1.6L makes more power, but does so at less rpm because of the bigger stroke.
He has a few books with all of the weird-*** JDM engines and their block codes, hp ratings, etc.
In the 1994-1995 book the D15B VTEC is rated at:
120hp@6800rpm
So what I assumed is correct I guess. The D15B VTEC is more like a 120hp engine than a 130hp engine.
Also intersting is the ZC 1.6L VTEC:
130hp@6600rpm
Again I've always contended that the 1.6L makes more power, but does so at less rpm because of the bigger stroke.
01-11-2005, 05:22 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (B18C5-EH2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 »</TD></TR><TR><TD CLASS="quote">I touched on this briefly in another topic, but here's my question:
Are there not two different JDM D15B VTEC engines?
I recall reading an elaborate 3-stage VTEC article linked from a topic here on H-T, and it showed a 1.5L D15B VTEC engine with a really cool 3-stage VTEC head on it. They rated the engine at 130hp, but then I noticed that this was an engine from an EK model and to me that doesn't seem like it'd be very common.
With all of the imported D15B VTEC engines rated at "130hp" it got me wondering if all of these are the true 130hp 3-stage VTEC engines. It also made me wonder if the majority of the D15b VTECs are in fact not the cool 3-stage VTEC ones, then what are they really and how much power do they really make?
I saw someone state that the D16Z6 is not as good as a D15B VTEC, but I'd have to say the edge would still be with the D16Z6 because of the added cc and torque/hp.
Basically I'm thnking out loud on this one, and I've been wondering this for a long time since reading that article. It makes me think people have been getting kind of shafted thinking they're getting more hp than a 1.6L, when in fact the ratings are wrong.
Thoughts?
</TD></TR></TABLE>
First off
WTF is "3 stage VTEC"? Never heard of it...
and second
I always thought the D15B and the Z6 were both of the same displacement? As in 1.5 actual liters?
Are there not two different JDM D15B VTEC engines?
I recall reading an elaborate 3-stage VTEC article linked from a topic here on H-T, and it showed a 1.5L D15B VTEC engine with a really cool 3-stage VTEC head on it. They rated the engine at 130hp, but then I noticed that this was an engine from an EK model and to me that doesn't seem like it'd be very common.
With all of the imported D15B VTEC engines rated at "130hp" it got me wondering if all of these are the true 130hp 3-stage VTEC engines. It also made me wonder if the majority of the D15b VTECs are in fact not the cool 3-stage VTEC ones, then what are they really and how much power do they really make?
I saw someone state that the D16Z6 is not as good as a D15B VTEC, but I'd have to say the edge would still be with the D16Z6 because of the added cc and torque/hp.
Basically I'm thnking out loud on this one, and I've been wondering this for a long time since reading that article. It makes me think people have been getting kind of shafted thinking they're getting more hp than a 1.6L, when in fact the ratings are wrong.
Thoughts?
</TD></TR></TABLE>
First off
WTF is "3 stage VTEC"? Never heard of it...
and second
I always thought the D15B and the Z6 were both of the same displacement? As in 1.5 actual liters?
01-11-2005, 06:00 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (B18C5-EH2)
yes there is two different ones. The OBD 1 version and the OBD 2 version.
OBD 1 is more like the engines we have here.
OBD 2 version is the 3 step vtec system like you talked about. You can tell the difference by the plugs and the solinoid has two coils on it. When you take off the valve cover it has more followers in it and the timming belt for this engine is the same as the civic vx (LEAN BURN ECNO BOX ENGINE).
OBD 1 is more like the engines we have here.
OBD 2 version is the 3 step vtec system like you talked about. You can tell the difference by the plugs and the solinoid has two coils on it. When you take off the valve cover it has more followers in it and the timming belt for this engine is the same as the civic vx (LEAN BURN ECNO BOX ENGINE).
01-17-2005, 04:17 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (B18C5-EH2)
LIST:
udsm d16z6 sohc vtec 127hp@7200
usdm sohc zc sohc non-vtec 115hp@6800
usdm d16y8 sohc vtec 129hp@7200
usdm d16a6 (si) sohc non-vtec 110hp@6800
usdm d15b1 or z1 (vx) sohc non-vtec 92hp@6800 vtec-e its pre-wired for vtec swap
and there are mini-me's that are sohc vtec 120-135 hp, depending
jdm sohc zc 120 hp@6800
jdm dohc zc pre-1990 125hp@6800
jdm dohc zc 90-91 130hp@7200
jdm sohc d15b vtec 92-95 vti 130hp@7200-7400 Which what i have in my EF HATCH
So actually depending there can be up wards of 12 difforent one's
udsm d16z6 sohc vtec 127hp@7200
usdm sohc zc sohc non-vtec 115hp@6800
usdm d16y8 sohc vtec 129hp@7200
usdm d16a6 (si) sohc non-vtec 110hp@6800
usdm d15b1 or z1 (vx) sohc non-vtec 92hp@6800 vtec-e its pre-wired for vtec swap
and there are mini-me's that are sohc vtec 120-135 hp, depending
jdm sohc zc 120 hp@6800
jdm dohc zc pre-1990 125hp@6800
jdm dohc zc 90-91 130hp@7200
jdm sohc d15b vtec 92-95 vti 130hp@7200-7400 Which what i have in my EF HATCH
So actually depending there can be up wards of 12 difforent one's
01-17-2005, 07:25 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (sohcvtec66)
theres a such thing as a stage 3 vtec...not much people know about it but if u dont believe it then see for ur self...
http://www.leecao.com/honda/vtec/3stagevtec.html
http://www.leecao.com/honda/vtec/3stagevtec.html
Trending Topics
01-17-2005, 07:29 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (DasaEJ1)
I've seen three stage vtec d15b but it was OBD II (normal cam profile, stage 2 opens second intake valve, third stage switches over to bigger cam lobe I believe). The dip stick was to the side instead of the middle of the block just like obdII d16s.
It does exist. I belive it does have dual solenoids.
It does exist. I belive it does have dual solenoids.
01-17-2005, 08:10 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (dseriesEF)
Please note everyone wanting research:
Looking for a engine swap for power?? This is just the RPM and HP ratings. This is NOT a decent way to rate engines in my opinion. These are horsepower RATINGS, like 120 or 130. Check the torque, that in my book, is more important. Yea the 3 stage VTEC is good, also check the other stuff, like what RPM is its max torque, is it durable, how strong are the rods, how was it built, that stuff. For a better comparison, they should post averages of the most common torque/hp graphs of the JDM D15B and the ZC and Z6 and so forth.
Looking for a engine swap for power?? This is just the RPM and HP ratings. This is NOT a decent way to rate engines in my opinion. These are horsepower RATINGS, like 120 or 130. Check the torque, that in my book, is more important. Yea the 3 stage VTEC is good, also check the other stuff, like what RPM is its max torque, is it durable, how strong are the rods, how was it built, that stuff. For a better comparison, they should post averages of the most common torque/hp graphs of the JDM D15B and the ZC and Z6 and so forth.
01-17-2005, 09:57 PM
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Re: Are There Two Different JDM D15B VTEC Engines? (Redline96LX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Redline96LX »</TD></TR><TR><TD CLASS="quote">Please note everyone wanting research:
Looking for a engine swap for power?? This is just the RPM and HP ratings. This is NOT a decent way to rate engines in my opinion. These are horsepower RATINGS, like 120 or 130. Check the torque, that in my book, is more important. Yea the 3 stage VTEC is good, also check the other stuff, like what RPM is its max torque, is it durable, how strong are the rods, how was it built, that stuff. For a better comparison, they should post averages of the most common torque/hp graphs of the JDM D15B and the ZC and Z6 and so forth.</TD></TR></TABLE>
I know this, just dont feel like explaining it in 5 paragragh's.........dont believe everythign u read on the internet
Looking for a engine swap for power?? This is just the RPM and HP ratings. This is NOT a decent way to rate engines in my opinion. These are horsepower RATINGS, like 120 or 130. Check the torque, that in my book, is more important. Yea the 3 stage VTEC is good, also check the other stuff, like what RPM is its max torque, is it durable, how strong are the rods, how was it built, that stuff. For a better comparison, they should post averages of the most common torque/hp graphs of the JDM D15B and the ZC and Z6 and so forth.</TD></TR></TABLE>
I know this, just dont feel like explaining it in 5 paragragh's.........dont believe everythign u read on the internet
01-18-2005, 08:56 AM
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Re: Are There Two Different JDM D15B VTEC Engines? (Redline96LX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Redline96LX »</TD></TR><TR><TD CLASS="quote">Please note everyone wanting research:
Looking for a engine swap for power?? This is just the RPM and HP ratings. This is NOT a decent way to rate engines in my opinion. These are horsepower RATINGS, like 120 or 130. Check the torque, that in my book, is more important. Yea the 3 stage VTEC is good, also check the other stuff, like what RPM is its max torque, is it durable, how strong are the rods, how was it built, that stuff. For a better comparison, they should post averages of the most common torque/hp graphs of the JDM D15B and the ZC and Z6 and so forth.</TD></TR></TABLE>
I disagree about the torque.
A B18B LS engine easily makes more torque all over the place than a B16A engine, yet IMO from numerous experiences (owning a B16A2 swap and driving countless LS swaps) I'd take the B16A engine because it still outpulls the B18B engine.
Looking for a engine swap for power?? This is just the RPM and HP ratings. This is NOT a decent way to rate engines in my opinion. These are horsepower RATINGS, like 120 or 130. Check the torque, that in my book, is more important. Yea the 3 stage VTEC is good, also check the other stuff, like what RPM is its max torque, is it durable, how strong are the rods, how was it built, that stuff. For a better comparison, they should post averages of the most common torque/hp graphs of the JDM D15B and the ZC and Z6 and so forth.</TD></TR></TABLE>
I disagree about the torque.
A B18B LS engine easily makes more torque all over the place than a B16A engine, yet IMO from numerous experiences (owning a B16A2 swap and driving countless LS swaps) I'd take the B16A engine because it still outpulls the B18B engine.
01-18-2005, 09:09 AM
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Re: Are There Two Different JDM D15B VTEC Engines? (B18C5-EH2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 »</TD></TR><TR><TD CLASS="quote">
I disagree about the torque.
A B18B LS engine easily makes more torque all over the place than a B16A engine, yet IMO from numerous experiences (owning a B16A2 swap and driving countless LS swaps) I'd take the B16A engine because it still outpulls the B18B engine.</TD></TR></TABLE>
in the long run
I disagree about the torque.
A B18B LS engine easily makes more torque all over the place than a B16A engine, yet IMO from numerous experiences (owning a B16A2 swap and driving countless LS swaps) I'd take the B16A engine because it still outpulls the B18B engine.</TD></TR></TABLE>
in the long run
01-19-2005, 07:57 AM
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Re: Are There Two Different JDM D15B VTEC Engines? (civicboisi)
Well it looks like there is more than just two of these engines from what I found on the honda japanese site. You can't read a lot of it but they have specs for the engines that you can make out. Their years for the cars are different by a year for each generation for example eg's are 91-94 ek's 95-99.
91-94 D15B vti 1.5l vtec
130ps/6,800rpm
scroll down to the last paragraph
http://www.honda.co.jp/factboo...tml#a
i also found a dyno graph
95-99 D15b vti 1.5l 3 stage vtec
130ps/7,000rpm
95-99 D15B ri 1.5l non vtec
105ps/6,400rpm
dyno graph for d15b w/ 3 stage vtec
here's the link for the two above again scroll down towards the bottom
http://www.honda.co.jp/factboo....html
Threre also seems to be two more for the crx although it doesn't give any engine codes
1.5l 16 valve carb
91ps/6,000rpm
1.5l 16 valve dual carb
105ps/6,500rpm
Here's the link for those two
http://www.honda.co.jp/factboo....html
91-94 D15B vti 1.5l vtec
130ps/6,800rpm
scroll down to the last paragraph
http://www.honda.co.jp/factboo...tml#a
i also found a dyno graph
95-99 D15b vti 1.5l 3 stage vtec
130ps/7,000rpm
95-99 D15B ri 1.5l non vtec
105ps/6,400rpm
dyno graph for d15b w/ 3 stage vtec
here's the link for the two above again scroll down towards the bottom
http://www.honda.co.jp/factboo....html
Threre also seems to be two more for the crx although it doesn't give any engine codes
1.5l 16 valve carb
91ps/6,000rpm
1.5l 16 valve dual carb
105ps/6,500rpm
Here's the link for those two
http://www.honda.co.jp/factboo....html
01-19-2005, 08:00 AM
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Re: Are There Two Different JDM D15B VTEC Engines? (mc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 »</TD></TR><TR><TD CLASS="quote">I disagree about the torque.
A B18B LS engine easily makes more torque all over the place than a B16A engine, yet IMO from numerous experiences (owning a B16A2 swap and driving countless LS swaps) I'd take the B16A engine because it still outpulls the B18B engine.</TD></TR></TABLE>
It depends on what car its in. The B16 is a great engine to me, however In my experience, I have never been pulled by a B16. EVER
A B18B LS engine easily makes more torque all over the place than a B16A engine, yet IMO from numerous experiences (owning a B16A2 swap and driving countless LS swaps) I'd take the B16A engine because it still outpulls the B18B engine.</TD></TR></TABLE>
It depends on what car its in. The B16 is a great engine to me, however In my experience, I have never been pulled by a B16. EVER
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