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I'm working on a 99 Civic Si build that currently has a D16 SOHC engine - before you tell me I'm wrong, in Canada this engine was an option in the Si. I'd much rather have a B16 DOHC engine and was wondering if the two engines use the same block. If they do, I don't need to worry about finding a donor car to do an engine swap, I can just build up the motor I've got and replace the top end.

Any comments or anything I'm overlooking?

Thanks, guys....

 
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well the canadian SI is just an EX in the usa. so you basically are looking for the SI-R motor in canada. they are completely different engines and you would need to find the full swap. the D16 is actually a pretty crappy motor and i doubt you will have much luck building it other than a few hp with intake and exhaust.

 
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Thanks Gearbox, thats what I figured. I agree, the D16 motor is crap, I could just about push the car faster then that motor will move it. My hope was, if the two motors shared the same block, I could basically swap heads and have a usable motor. Oh well, its not a big deal. I'm looking into a couple motors to swap in, either a 2.4L out of an Accord or a 1.8L out of an Integra. Both those motors will require some custom work - brackets, motor mounts, custom exhaust, etc - but should prove to be an huge improvement over what I've got.

Thanks for the help...

 
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i would personally go with the b18 series over the 2.4, i've seen more aftermarket parts for the b18 series, but its mainly a personal preference

 
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if your going to turbo any time in the future go with a b18c1 swap from a gsr. Its a much better engine platform then a h22 or building the d16. Swapping in a K24 is too much of a pain to do it on a 6th gen civic and not worth the price.

 
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if you think a d16 is crap, then what would u consider a d17??? I know of MANY 400hp d16's. My sons for one.

 
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d17 = double crap lol

 
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didn't we have an earlier thread (like almost a year ago) about the power potential of the d17 over the d16? wasn't triz the one saying the d17 had plenty of power potential?

turbo the d16. you'll get more power for the same money as swapping in a b series that is as slow as a constipated man pooping.

 
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Gearbox, sorry man but I think you are full of crap. The d16 is still good, If you're not a mechanic then shut up, because you obviously don't know anything about engines. Any engine can be good, with enough money. a d16 stock will crappier than a b16 stock. But a d16 can be better than a b16. All they are is an engine with different sensors and stuff. The major thing that is different from the d16 to every other Honda engine is that it isn't Vtec. Which a d16 in a Lx model Has an EGR valve to replace the VVT. 17 hp difference from vtec and a non-vtec. I feel bad for people, including an administrator that is a part of a car forum that doesn't even know very much about cars...Don't respond saying you know about engines and crap because if you say that that the d16 is crap you're making a fool of yourself. You need to know more about engines before you comment on them and claiming they are something they aren't.

 
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D940 maybe you can offer some practical advice..I am new to working on cars, i can do the basics and am interested in "tuning" my car, right now my 99 civic dx is all stock with the exception of a short-ram intake, and the engine has over 150,000+ miles on it. I would like to just get it around 180-200 HP and be set with that. Can I accomplish this with a new intake, headers, exhaust system and some Ignition mods??? Just curious and would love some feedback from you...

 
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HAHAHAHAHA. No way anybody's that stupid but then again. if i had known that i would'a just bought a d series and changed all the sensors and had a b series. and to Adam please dont listen to anything D940 says unless you want wrong advice. take the advice of the admin that apparently is full of crap

 
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open up and start eating your humble pie sir!

You OBVIOUSLY dont know what you're talking about!

This sure looks like a D16 VTEC!, but i havent got my new glasses yet either....

 
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Well you have to take into fact When you modify ANY engine excluding Intake and Exhaust, you need to upgrade all the components that work work with that system. So for instance you get new injectors, you will need to upgrade your Fuel rail and your entire fuel system for it to work with those new injectors. Same goes with getting new spark plugs. Getting only the spark plugs aren't going to make a difference at all, you need to upgrade the spark wires, the coils, The distributor cap if you have one. You will need to upgrade the entire Ignition system. Many people don't realize this. The people that do are the ones with those bad *** tuner cars not the rice rockets. It takes money and time. But I see that you want something not too expensive and will get you some easy horsepower and that is putting a short ram and a full exhaust system. and don't be a tool and take out the cat because that doesn't do anything but cost you a $1000 dollar ticket, and possibly jail time. You can also upgrade your PCM, the only thing is you will have to have a Mechanic do it for you because if you do it yourself, you will have to reprogram everything. Best way is to store all the data from the old PCM on a drive and transfer it to the new upgraded PCM, and for the tuning part tune it to your specifications. Basically if you don't have the tools and the knowledge You wont be able to do it DIY style. Especially for tuning If you don't know what you are doing don't do it, let a mechanic or a Technician handle it. Preferably a Technician because they are more specialized in a certain field.

 
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tfnaaf Is that a Z6 or a Z7? i would love to have that car. stock d16 = but turbo d16 =

 
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please dont make me delete your miss information....... or worse

 
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Sorry let me clarify, I was referring to the LX model. and what is your point? I know what I am talking about. You only took out one sentence out of my entire paragraph and said something remarkably idiotic.

 
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fVck if i know its my sons and it HALLS @$$ we put it together a year ago

 
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Wow you are dumber than you think...you over thought that entire sentence. Good Job. I give you props for reading comprehension!

 
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Before you start calling out veteran members how about you educate yourself on the differences between the two engines first.

The d16 and b16 are significantly different engines. The b16 is DOHC with more aggressive cam profiles and the d16 sohc with economy cams.

The b16 head also flows a lot better and can go up to 500whp without ever touching the head under force induction.

The b16 transmission also has signicantly more agressive gear ratios compared to the d16.

Yes, you can mod a d16 to be fast, but given that b16 and b18 engines are so cheap, why not just start with a better platform.

To the op, just buy a b18c1. You can buy those motors for $1200 now and its a drop in swap for a 6th gen civic. Most people can do the swap in a day. Stock b18c1's can do 300whp with turbo on stock internals all day long.

500whp, if you build the block.

I dont know what your power goals are but if your planning on going 300whp+, The b18 is a better investment.

 
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agreed, b18c1 will put you at 170hp without even any mods!

 
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You guys are totally missing the point of what I am trying to say. I said stock YES the b16 is better. the d16 is still "crappier" than the b16. i didn't say it was better. I said the d16 is still a good engine... you guys need to chill and not take things offensively. I put that out there not as an offense. and FYI DOHC and SOHC don't make that much of a difference, it matters how many valves you have. Sorry man. If you can prove me wrong that SOHC and DOHC TRUELY make a difference in performance, do it.

 
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D16A6 SOHC 110hp
D16Z6 SOHC VTEC 125hp
D16Z7 SOHC VTEC 127hp

B16A1 DOHC VTEC 160hp
B17A1 DOHC VTEC 160hp
B18C1 DOHC VTEC 170hp
B18C DOHC VTEC 190hp

am i the only one that sees a trend here? DOHC doesnt matter? the number of valves do? seriously?

 
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For other manufacturers no it doesnt matter.

In hondas, it does matter. Since all the performance 4 cylinder engines for hondas are DOHC.

Also the main difference between the honda variable valve systems and other manufacturers variable valve systems is the cam switching. While other manufacturers juse use variable valve timing for mpg and emissions, honda uses it as performance enhancement.

The honda DOHC engines higher flowing heads and stronger internals compared to the SOHC honda engines. The Honda DOHC engines also come with better transmissions as well.

The point is, he can spend a small fortune pulling the head and building the block on his d16 or just spend $1500 on a better engine had add instant 50hp.

From a ROI stand point and future power stand point, the b18 is a better investment.

 
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everyone has realized your a dumb ****, thus nobody cares what you have to say.

secondly, you want to be proved wrong that the d16 and the b16 are different in performance? um ok. Well since there is was no stipulation as to which b16 to compare lets start with the b16b vs. the d16y8.

b16b
10.8 compression ratio
185 hp @ 8,200 rpm
16.3 kg/m @ 7300 rpm
115.6 hp/liter
high chrome carbon steel connecting rods
molybdenum pistons

d16y8
127 @ 6,600 rpm
107 @ 5,500 rpm
9.6:1 Compression Ratio:
>100hp/liter

as far as i know 185>127. if thats not enough how about a nearly perfect bore and stroke ratio vs. the d16. or how about connecting rods that can withstand 300hp. How about oil squirters to cool the pistons? or a block girdle across the main caps to stiffen the block? or like someone else said one of the best flowing oem heads EVER in automotive history? The highest specific hp/displacement of any manufacturer in north america and among the top in the world? Even if you were so dense as to not understand a single of the preceding points look at it this way, SOHC vs DOHC.

Single
Over
Head
Cam

Dual
Over
Head
Cam

single means 1 dual means 2. 2 is better than 1 right? now you've embrassed yourself enough. go back and play with your spoon engines with t-66 turbos and motec exhausts.

 
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Lol.

 
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Thanks D940

 
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you know you don't really have a life if you read these all the time and enjoy it.
lol guess i don't have a life

 
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you read them because the internet sucks otherwise. But i may be wrong cause im dumber than i think and over think entire sentences according to some

 
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okay, So I thought about it and figured that if I can find a b18c1 somewhere for around 1200 then I will go with that, it would be much more of what I wanted as far as HP gains and would be more economical...anyone know where I can find one that is an automatic for around this price??? And if I do get one..for the most part is it a straight bolt-on? I heard from someone that I would need new engine mounts, but other than that it is pretty much an even swap right? Any input would be greatly appreciated...

 
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pretty much bolt in, but some fabrication needed for limited slip transaxle. did the GSR even come with auto tranny?