d15b i find soo many dif facts about this motor why?

[smokeymicpoter56]

ok i have the d15b and want to get some more things dun before we drop it all the way in the car and want'd to know what things would you guys do? what motor do i get parts from for this motor like for pistons and rods? because isn't the buttom end diff than the z6 or is everything the same? dose the zc sohc vtec really have 140 hp and i want'd to know whats the number's for the d15b and is it as fast? i keep hearin dif numbers for it.

[4thgenracer]

well if it is the d15 do a mini-me swap.just take the vtec head from a 1.6, put it on the 1.5, wire it up, get a vtec conroler(apexi is the best),and do the mpfi swap and get the si tranny and axles,then you will have a nice 1.5.but remember you don't want vtec w/turbo. as for the piston i think 1.6 stuff will work.it is mostly interchangeable. just bore it 30 or 40 over and go all forged.it may take a long time to do everythingbut it will be quick,definetly with the bore,it should become a 1.8.it will be as quick a a b16 if not faster.with everything it should be about 4 g's or so if you don't do it yourself.....well at least around hear...prices may vary

[Scott82]

is this the usdm d15 or jdm? if it's jdm it's already vtec, i assume this is the one your talking about cause the HP you have listed, and i have heard 135hp my self but like you said depends on who you ask but there are some sites that sell the motor that give specs like that on them. if this is the jdm motor then you need to convert to obd1 which is what i recomend, a little more expensive but you'll have fewer problem along the way and run the p28 ecu, or you can get the jdm ecu for the motor and not have to convert but you'll still have to change some plugs on your harness, i just finished this swap in my 89 crx and i am running a hf tranny and it's still pretty damn quick, and the gearing is insane, i am at about 90-95mph when i wind out 2nd gear and it don't take it long at all to get there. I am happy w/ the motor and i'll the parts i got for it were for the z6 or a6 either one but i didn't change any internals so i'd still check on that since the displacement is differ. But good luck and if you have any wiring questiions let me know.

[smokeymicpoter56]

its all jdm no us stuff here just playin. but is the oil pain gasket and read main seal are those the same as the d16z6 or do i have to get dif motor parts?

[Scott82]

yes they are the same, just ask for stuff for a 93 civic si and you'll get the right gaskets and rear seal. 1.6ltr one not 1.5

[livinincalifornia]

not all JDM D15B's are VTEC...I have the non-vtec version.

[Scott82]

what i said above apply's to the vtec and i think he has the vtec by the hp he listed above.

[livinincalifornia]

Originally Posted by Scott82

what i said above apply's to the vtec and i think he has the vtec by the hp he listed above.

ohh I see, I was gonna say because the specs on the two are quite different.

[smokeymicpoter56]

soo dose the d15b vtec pull at all like the b line or dose it suck as much?

[smokeymicpoter56]

i got a water pump and timing belt but im not sure if its the right stuff i got the stuff for the d16z6. is that the right stuff? can i buy buttom end stuff for the z6 and put it on my d15b im looking for rods and pistons if any one knows of any one good?

[Scott82]

1.6 is either a longer stroke or bigger bore than the 1.5, something inside has to be different for that to happen i'd think. so i would keep checking on that. cause i am not sure