which is better? D16z6 or D15b?

I was just curious wich engine is better? the d16z6 or d15b. I would think the d16z6 because of the extra liter but im not an expert. Any input would help.



thanks



ben

Originally posted by relientokay
the d16z6

Well the 1.6L SOHC VTEC has 125hp and 107ft/lbs of torque.
The 1.5L SOHC has about 107hp and 90'ish ft/lbs of torque.

I think he's talking about the JDM d15b VTEC engine. Heres more info on it.

http://asia.vtec.net/article/d15b/

Extra liter? Ummmmm you mean extra 0.1 liter... a D16 is 1.6l the D15b is 1.5l and the BEST is a D16z block w/ D15b head :smoka:

d15b vtec

i own a jdm d15b vtec and i kill d16z6

basically a jdm d15b vtec is a d15b block with a d16z6 head from factory(thats for the 92-95) slightly different rods than regular d15b

D15B owns d16s

well what if you droped one of thes D15B's into a 97 civic coupe will it pull it with the weight difference?

yes

yes How come the extra .1 liter does not matter hence the D15b versus the D16z6 oy Y8 block would the Y8 be better than the D15b

i heard the d15b vtec pulls harder than the us spec d16y8..anyways..has anybody even worked with a d15b vtec?

I have, and they're actually decent motor. My cousin has it in his civic, it's a good little motor.

i think its funny when people like 91d15bvtec say their engine can kill the bigger one...just because its what theyre stuck with...

kind of like some people with d16z6's who say they smoke b16's...

and when b16 owners say they smoke b18's etc.. etc....

just find it amuzing

well let's see, d16z6 = 125 hp 107 ft/lb of torque
D15B = 130 hp and not sure about torque figures. The less weight and 5 extra horse should aid in beating a d16

Huh? I thought the D15 was 107 horsepower?

USDM D15 is 107HP. JDM D15B is a VTEC motor with 130 hp

You can always tell the difference between USDM and JDM motors because all USDM motors have a number at the end of the engine code, JDM motors do not. ex. D15B7 = USDM; D15B = JDM

Ok..gotcha ( I R No0b )

d15b vtec is stronger due to higher compression but it lacks a little bit of torque. let me tell u a true story in sacramento,ca. my firend has a b16a2 with intake header exahust in his 92 hatch, this other guy had a d15b he smoked my friends car on second gear no bull shit. this guy open his hood it says d15b

Yea I have seen the same thing my friend had an 99 si and got smoked bad by a d15b was kinda funny :)

i have a d15b very good engine i just cant figure why it wont run right it keeps cutting out on me when i get around like 400 rpm in any gear

i have a d15b very good engine i just cant figure why it wont run right it keeps cutting out on me when i get around like 4000 rpm in any gear

Anyone know anything about the D16ZC?

1.6L DOHC non-VTEC about 130 hp just like the D15B, not sure about torque figures on this motor either.

BTW: Please don't bring back old threads.

My D16ZC is a SOHC Vtec. It looks just like the D16Z6? I got the motor and swaped it into my 90 hatch and it runs strong but I cant find any numbers on this motor and alot of people have not heard of it. I was told by someone that it was a DelSol motor and i think I remember when picking it up that he said it had been removed from a RHD DelSol?

d16zc is probably the only single cam motor that can beat the d15b in my opinion...i have a d15b and my friend has a zc and he wins all the time...the d15 is a great motor vtec comes in strong, and when you beat people and they ask what you have, tell them a 1.5 (its always funny to see their expressions)

1.6L DOHC non-VTEC about 130 hp just like the D15B, not sure about torque figures on this motor either.

BTW: Please don't bring back old threads.
DOHC ZC has 130hp and 108tq

My motor is not the DOHC ZC it is the D16ZC SOHC Vtec. I dont know any of the spec's on it but is sure does haul ass. Ive beaten alot of cars and have shocked them when ive told them its a SOHC. I also currently have a turbo sitting in my living room awaiting its install.

You have the D16Z6 not ZC. I believe the ZC motors never came with a VTEC head.

You have the D16Z6 not ZC. I believe the ZC motors never came with a VTEC head.


not true...two of my friends sohc vtec motor if u look at the engine code says zc(i can get the code number if u want)and on the head has vtec...its a very rare motor...but it is a single cam vtec motor, we've searched for it countless times on the net and came up with nothing for it...its almost like a ghost motor, usually only found at places that import motors directly from japan

Yeah I figured there had to be someone out there that has heard of this motor. I was told the same when i purchased the motor that it was very rare. The block has only ZC stamped on it and it is vertually the same motor as the D16Z6 but i have no stats on it and would like to see some.

Huh? I thought the D15 was 107 horsepower?

the us spec d15 pulls the 107 ponies, not jdm.

i dunno any of the specs but i've heard that it pushes out anywhere between 137-142 hp...that motor moves...i wouldnt compare it to the d16y8 or z6 cause its basically a no contest...runs harder than an ls would in a 92-95 shell thats for sure, but if anyone finds out anything let me know im curioius as well

well, I did a little searching and came up with a site with someone who has that motor with an auto tranny. Says it's only 125 hp, and ran a 17.1 in the 1/4. I'd say it would give a d16y8 or Z6 a run for it's money.

you all got it wrong! D16Z6 is fater and has mor HP than D15B, i know cause i have smoked many D15B on hatchs with my 94 ex coupe, the only D15 engine that coul be faster is the D15B2 that has a 3 stage V-TEC .you can chek it at http://www.leecao.com/honda/vtec/3stagevtec.html

this is a SOHC Vtec just like the Z6 buts its the JDM model or so im told. I witnessed it get pulled from a RHD DelSol before installing into my 90 hatch. And i beat Z6's and Y8's all the time I know it has more power then them and i was told from a HUGE importer in Portland Oregon where i bought the motor that it is the highest HP SOHC Vtec Honda has made. Whether all that is true or not I dont know?

Oh yeah its the D16ZC, Block stamp only reads ZC there for JDM

I would have to agree the D16Z6 is a better engine in my opinion, my buddy had a 4th gen hatch with a SOHC JDM ZC(non-vtec) turbo'd at about 1 bar and I could pull him through third gear in my EG6, stock with a C.A.I everything else is stock. Correction was stock. But everything really falls back on your driving.

Hey JDM90SiR how come you said you were TOLD it was a D/S motor and the guy you picked it up from SAID it was pulled out of a D/S, but you witnessed it being pulled out also, how does that work? I suppose someone TOLD you, you have a turbo sitting in your living room awaiting install?

I own a 1993 Civic Cx wich originally had he USDM 70hp D15B non-vtec. Then I swapped it for a JDM D15B SOHC V-Tec, put an Apexi V-tec airflow controller, Dc sports headers, greddy exhaust and a aem undercam pulley and let me tell you that with that engine and upgrades plus my very lightweight 2 thousand pound car it is fast! So if you ask me if I would rather spend over 3500 bucks on a B16A with tranny not installed over $1000 bucks for a JDM D15B Vtec With vtec controller I would say hell no. The money I saved can easily put a ball bearing turbo and take out most typical street ricers.

I got good news ....... I just saved money by switching over to D15B Vtec...

kkkk

My D16ZC is a SOHC Vtec. It looks just like the D16Z6? I got the motor and swaped it into my 90 hatch and it runs strong but I cant find any numbers on this motor and alot of people have not heard of it. I was told by someone that it was a DelSol motor and i think I remember when picking it up that he said it had been removed from a RHD DelSol?
i just dropped a ZC any one know of any spec or upgrades

[QUOTE=GScivic7]You have the D16Z6 not ZC. I believe the ZC motors never came with a VTEC head.[/QUOTEya i have ZC that is non-vtec

Holy shit, you could have just looked for an answer instead of making 6 posts about the same thing? Try here: http://thezcr.com/

on hmotorsonline the do have sohc zc engine im not sure if it is vtec or not but the are givinh 120 hp and 100 torque. does anybody know if the d15b would accept a y8 intake manifold also what is a good ecu for these engines

well let's see, d16z6 = 125 hp 107 ft/lb of torque
D15B = 130 hp and not sure about torque figures. The less weight and 5 extra horse should aid in beating a d16


its 111 ft/lb...think thats the same as a b16


i just traded my d15b7 coupe for a d15b hatch yesterday...the d15b is way faster then that coupe

Well, I own a 95 Ferio with the JDM D15B 130 hp engine and it is very fast for such a small engine. I believe it would easily smoke any D16, otherwise why would Honda put that engine in their second performance Civic?. The top model of course is the SiR, with the 170 hp B16 engine, but the second best Civic is the VTi with the 130 hp D15B.

JDM D15B engine is 130 hp, 7200 rpm Redline.

depend which d15b ya talking about bro. the US d15b=d15b7 1.5L

Japan JDM D15b is just d15b 1.5L

D=D series Motor
15=1.5L
B or b7=Lable of the motor in the D series

but yea the JDM Motor Rock's Harder then the US motor

B16A JDM or b16A2 of course import stuff dont got the US limit CRAP

Well. alot of people thank the bigger the liters the faster they are.. But Im gunna get technical with you. The Jdm d15b (no jdm motors have any sub labels ex.b2, b7,z6) With the combination of the matching jdm tranny That has LSD unlike ANY other d series trans (better for quick launching). Most All d15's have higher compression (dome) pistons unlike the d16z6's lower compression (dish) pistons Which makes for slightly stronger vtec engagement when equipped, Also EVERY SOHC D-series motor is 75mm bore so theres not any difference there. The d15b vtec head is identical to a d16z6 head. But the block of a D15 DOES have a shorter deck height (207mm unlike D16/17 212mm) and shorter rods (134 instead of d16 137mm)with differently timed and shorter crank strokes. (84.5mm unlike d16z6 90mm). It has 107lbs of tq. BUT the shorter rod strokes do give them quicker take offs and the extra 2 lbs difference in motor internals does make barely lighter . Plus the matching jdm ecu's aren't really programed for Great gas milage and have slightly more noticable vtec engagement. So technically the d15 vtec IS quicker but not Faster in Higher speeds, IF you use the correct ECU. and yes d16z6's are better for boost because of the lower compression pistons.:smokin:

^The D15b has a different cam from the d16z6. The d15b has a compression ratio of 9.3:1 and the D16z6 has a compression ratio of 9.2:1, so there is little difference. And to clarify, not all jdm d15b transmissions have LSD.

Well damn, looks like someone on this post besides me knows a little more just engine displacement. Thank you Spoon. The VTI d15bvtec had the lsd trans. Yea i heard yesterday about the cam lobes being a little bigger. Thanks for the correction tho.

I Just got A D15B JDM SOHC Vtec. I want to get performance valve springs,retainers, Valves, & cams. But some one told me I have to change to
a D16Z6 head to do that. Is this true? If not were do I go to find the stuff I would love to have?

Just get and install a set of P29 pistons on any of those engines and you will get amazing resulsts, i have them on a D16Z6 with just a chip on a P28 ecu with some other cheap things (header, intake, exhaust and a little bit of extra fuel pressure) and i have a lot of fun beatting some civics like mine, and my car is auto trans, some of them think i have a B16. But if you are not racing i can tell you the D16Z6 or the JDM D15 v tec for the extra horses and torque!

ok. this is retarded.... how about we say that in america; the stock versions of the engines, would have the z6 winning.... in japan, the d15b wins..... if you compare them, they both have favorable parts, it just depends on what they are being used for...

i have a 94 civic ex coupe with d16z6 with cold air intake header,downpipe,2 1/4" exhaust,2 1/2" muffler and some decent width rims its pretty quick i raced a crx with a b17 suposedly stock and beat me by like two lengths wich i think is bull cuz the b17 has like 150 hp

i wanna put an h22a in but im not sure if the exhaust will line up right or the axles

i have a 94 civic ex coupe with d16z6 with cold air intake header,downpipe,2 1/4" exhaust,2 1/2" muffler and some decent width rims its pretty quick i raced a crx with a b17 suposedly stock and beat me by like two lengths wich i think is bull cuz the b17 has like 150 hpDude the B17 have a good tranny and your engine is stock too, and you never know what's under the hood of an Honda. Not everybody tells all the extras they have, there are lots of things you can't see by just looking at the engine. Stock Honda's would not race hard enough specially USDM like ours. Go get a stage II cam and some pistons like the ones i have or the ones in the D15 that have higher compression, put a chip to the ecu and try to get a ZC tranny, shorter shifts ratios and higher final drive, then race again. Dont forget to set it in a dyno and dont tell everything to everybody!:popcorn:

He said B17... D17 engines are crap, with crap for intake manifolds, crap for exhaust manifolds, and crap for internals... You should never again refer a D17 as "good"... or any sort of the term.

B17 engines were put in some GSR models, can't remember which years...

It's basically a de-stroked ITR motor, IIRC.



Depending on what each car had in it, (interior, system, etc.) that CRX could have had about 400 or more lbs on you too, which makes up about 4/100 of a second.. not much, but a start on those 2 lengths he got you by.

Your potential lack of driving skill compared to the other driver can mean alot too, not to say that you can't drive, but there is always that possibility... we don't know you.

Missing a single shift can be the difference between winning by a nose and getting your ass kicked by 2 lengths.

That B17 was designed as a race engine, used for a street car... it has a much broader torque curve, and makes power for longer, and at a higher RPM than your Z6 does. Higher RPM == faster, no matter what way you look at it.

OMG! You are wright Dude! But i already fix it, sorry if i comfused anybody. D17's are for grannys to go to grocery stores and for their dates with doctors. About the GS-R B17A was for 92-93, kind of rare i guess! And you are completly right about the driving skills or if he has an old worn and burned clutch. Anyway he is not going to get so far with a stock engine.

yea my clucth was smoked i just replaced it with a racing clutch and just for my own curiosity the 91-93 civic hatch's are those the ones with the jdm d15b? cuz if they are i have smoked everone i have raced but it wasnt a from stop it was on the highway