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  1. General Tech
    91 Civic DX D15B2 block JDM VTEC D15B7 head (not the 3 stage) P08 ECU I’ve been battling this code 22 (vtec oil pressure) since I’ve owned the car. Since I’ve changed out the head gasket, oil pan gasket, valve cover gasket and have zero oil leaks. I’ve followed both the oil pressure wire and...
  2. Engine Building
    Hey, I was looking into building my engine in the future but I was wondering if a D16Z6 crankshaft will fit in my D15Z8. And what about the head of a D16Z6? Any help is much appreciated. I wanted to swap the crank to use forged d16 rods and 75mm pistons, any feedback about this is also welcome.
  3. Engine Building
    Hey, I want to make my stock NA D15Z8 EU engine have more power naturally aspirated with stock ECU. What are the best things I can change like the head from another d series engine for example? The only things I have done are an intake a rear muffler and a 4-2-1 manifold heat wrapped as far as...
  4. General Tech
    Hi, Could someone help me with identifying which D series engine in the car. I hoping to buy an ek3 where the original engine was swapped with a vtec d series and since the engine number mentioned might not be true since I feel like its been modified to match the previous engine number but the...
  5. Transmission alley
    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...
  6. 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...
  7. 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
  8. 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???
  9. 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...
  10. 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!!!
  11. 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...
  12. 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.
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...
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