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  1. Engine Building
    Hey guys, I have a d series transmission but I am wondering if the LX/HX/DX differentiate in gear ratios, or anything like that. I am wondering if there even is a difference between them, and if there is, how to figure that out. Here are some photos of the sticker and imprint on the housing...
  2. Engine Building
    Hey guys, I wanted to ask for some help, but let me update you guys on whats happening: I have a 97 Integra GSR with a d15b, P2A-4 head, and a P4A transmission. Ive taken off the head, and taken out the block and trans. Bought a used d16z6 head, which I measured with a straight edge and files...
  3. General Tech
    Hello, ive got a d15b and first off Im curious to know if this is a jdm or not. The block says d15b only, but when I look at the head, I cant find any info on it beside what looks to be a serial number. Im trying to figure it out soon because I need an ecu for it and I need to make sure the head...
    d15
  4. Engine Building
    So like the title says i would like to hear a few thoughts from some guys who know! the cars a Honda city 1999 (Sx8) D15z4. can i use forged piston and rods on stock crank???
  5. 7th Gen
    Hi guys. I am looking forward to do a minime on my stock honda civic eu1(normal version of ep3) this car has a d15y3 non vtec engine. I want to convert it to vtec. I have 2 options: 1. Use only the cylinder head of d15b 3 stage vtec with stock head cover(without spark plug distributer) and stock...
  6. General Tech
    Been looking for forums to see if a d15b7 head will work on a d15z1 block haven’t found much but looking to see if anyone’s can give me some new info tia!!!
  7. General Tech
    Hey guys I just picked up a new project. Its a 91 civic with the d15b1 and its low miles around 55k. Was thinking a mild single cam turbo build. But this is my first honda that isnt a big red. any advice on what the d15s like? I've built boosted cars and trucks in the past. But I'm a virgin to...
  8. 20191003_203805.jpg

    Hybrid non vtec build. D15b2 block, complete d16a6 top end, adjustable cam gear, full stainless exhaust 2.25in, complete rebuild, dpfi to mpfi conversion, complete wire tuck, all new accessories belts and bearings. Economy but with a bit of attitude.
  9. General Tech
    Hey! I am new to the forum but I recent just picked up a 1992 Eg Si. The car came with a d15b Vtec boosted. No name turbo. I need a tune horribly! But first need some parts. Right now the car goes fine and runs fine but the turbo dies off at 5000 rpm. and I have to ease into it for it to spool...
  10. New Member Introductions
    hi all, new to the org, wish i knew about things like this back in the times... lol i picked up an eg hatch (ik the nostalgia!) for a decent price, mini me engine. i've built and worked on these before as a kid, thats not the real issue. tuning, things have changed in over a decade or so ago...
  11. New Member Introductions
    So,iv been out of the Honda scene for quite some time,a friend of mine has had an EG just sitting in her garage for a while,she told me i could have it for 2k and id really like to get back into hondas. Basically id like some opinions on if this is a good starting point of if i should look for...
  12. New Member Introductions
    Im very new to the civic driving scene, I just got my first car, a 1994 Honda Civic Dx coupe, I know i want to keep it different and build a d=series motor for a turbo but it seems very complicated, what set up do i need on my d motor for a powerful turbo ? i just got the p28 ecu and the vtec...
  13. New Member Introductions
    Hello everyone, like many others on here I've ended up scrolling through the forums looking for answers to my engine building questions and have ended up joining the forum in the hope of getting more accurate information pertaining to my situation. I have been searching the forums for about a...
  14. New Member Introductions
    Noob incoming, whats up D-Series.org? Wanted to introduce myself and bring to light my current project, I have always been a crazy guy interested in throwing together things that make people sit back and think "WTF were you thinking?". I have been working on my 1989 DX Hatch for well over a...
  15. General Tech
    hello guys, my car was running fine and suddenly my check engine went on giving me code 7 and 14 (tps and iacv) and the throttle response got weird, like when i tap the gas pedal the revs first go down and then it revs up and because of this its difficult to not stall sometimes. It also idles...
  16. New Member Introductions
    This is my first post here on D-Series, so here we go. I have a 1989 DX hatch with a frankenstein engine. b2 block, intake, trans with a b7 head as far as I've been able to assess myself. might be a b7 trans, not really sure. I was driving home one day and suddenly my car simply stopped...
  17. Engine Building
    My D16Y7 threw a rod the other day, after further investigation it absolutely fucked the block and crank. So my dad and I decided to just get a different motor. I was at the junkyard a couple days ago and saw some D15B1s, D15Z1, and a D16Y8 but the head was gone. Which would be the best to build...
  18. Engine Building
    Heyy guys back again in my last post i put a d15b1 into my ek jus to find out that it needs pistons rings :bs: good thing i got it for free lol. i just wanna know if i can put my z6 pistons in d15 and use my y8 head ? or should i just put the z6 internals into a y8 block ?
  19. New Member Introductions
    Hey All, I am new to the site and this is my first post. I got on here to get some much needed info... just like a lot of others I'm sure. Ok, I just purchased an 89 civic hatch BASE model. D15b1 and 4 speed granny tranny. I want to do a little bit to the motor but not get crazy with it. I...
  20. Engine Building
    Okay, so here is the story. I drive a 95 DX coupe with a sluggish D15B7 powerplant. I've been doing a fair share of research and fumbled with many different possible ideas for swaps. More and more each day, I'm leaning towards dropping a JDM D15B VTEC in there. Has anyone done this swap...
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