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  1. Forced Induction
    The build is as follows: Bottom End Stock Y7 block no guard or anything 75mm Vitara Pistons Scat H-beam Rods ACL Race Bearings All-Around OEM Y7 Oil pump Ported and Shimmed D16Z6 Crankshaft Head Refreshed Y8 Head BC Springs and Retainers Comp Cams 105300 Cam Y8 VMS Variable Cam Gear ARP...
  2. Engine Management
    Had the car tuned, drove great then went stupid rich idle/pt and lean boost. I tuned the idle/pt to make it communitable but no matter how much I added to boost it would lean out. I spent several months checking everything mechanical and nothing was off. The soldering looked like shit (wasn't...
  3. Forced Induction
    Hey guys I just bought a 97 civic DX 5 spd, I figured that’s the perfect platform to start with. I has a d16, non vtec, and a blown head. Thinking about going built y8 head, harness and ecu. I’ve seen people say the non vtec is better for boost because it’s less crazy but that doesn’t matter to...
  4. General Tech
    Need the recipe for how to build for 400+hp. Currently have a stock d16y8 the goal like I said is to boost it and have 400+hp, TO THE WHEELS not to the crank. That bein said I don’t wanna just toss a big ole wing wang spoolie thang on and blow my shit. What would be the best way to build for...
  5. General Tech
    I’ve never built a D series and I’m starting a turbo build for my 94’ dx. It has the 1.5 non vtec. I want to boost it w vitara no-notch h-beams and swap in a vtec head ( w the proper high fuel map ecu ofc) but im havin trouble finding a trustworthy turbo kit and don’t know which vtec head will...
  6. General Tech
    i’ve heard that the jdm d15b is better for boost because of better r/s ratio. i’ve done some research on r/s ratios but i don’t quite understand it. would there be any advantages to building a d15b7 minime with vitaras for boost over a d16a6 vitara mini me, because of the rod ratio, and would...
  7. Forced Induction
    I've got a stockblock y8 on about 7psi. Had it tuned on stock injectors and ran great for a while. One day I was driving and idle/part throttle pegged rich, like 10:1. Fried the wideband it was so rich. With a new wideband I decided to tune out the low load richness and got it ballparked, and...
  8. Forced Induction
    Hey guys, I've been doing some digging and I'd like to pick the brains of people more knowledgeable than myself about real world numbers. My build will be running the following: Complete D16Z6 CP 9:1 compression forged pistons 75.5mm Eagle rods ARP head studs ACL bearings (I think it was?)...
  9. New Member Introductions
    Hey there guys I'm brand new here and glad that I am! Little summary of the project I'm taking on. I bought a $300 dollar 88 Civic hatch DX and had the most fun of my life using it as an offroad go cart pretty much out at some land my family owns. After 2 months of jumping, hooning, and banging...
  10. New Member Introductions
    I am about to take my car to the dyno (about 90 miles away), and I want to make sure I have everything correct for it to be tuned. What should I check before taking it? Right now it only has a basemap, negative boost, and running a little rich. Should I check for boost leaks or vacuum leaks...
  11. Engine Building
    I just wired in my dsm 450cc injectors into my Y8 and they will not spray when the fuel pump primes. I am running a resistor box and dsm injector clips. I know that when you turn the key on the injectors should spray a tiny bit of fuel but they dont. If anyone has done this on a y8 and could...
  12. D-series.org Affiliates
    I feel like we've been on and off this website here and a lot of new members don't know who we are, so I was thinking a brief history would be nice for some. Scroll down to the green text to skip our history and see how to follow us. My name is Robert Reese and I started this company about 15...
  13. D-series.org Affiliates
    Can be purchased directly from our website now RCautoworks clutch master kit - RCautoworks Another new product we're adding to our line up. Once again, we use these on every day stock vehicles, all the way up to cars pushing over 800hp, and are using some of the most aggressive clutches out...
  14. Forced Induction
    i know i am still a noob to the forums but i am in need of advice. me and my brother have been tossing the idea around of boosting our 1991 ef d15b7 we are in no rush/ no one drives the car daily.. ^^^^i DO NOT plan on boosting with stock internals things that i know i need full pieced...
  15. New Member Introductions
    Has anyone ever seen a setup involving the following: Y8 head delta 272-2 supertech springs/retainers z6/y7/y8 sleeved block with wiseco 10:1 flat top pistons/eagle rods and boost on e85. How would one go about finding the power this setup could make? Obviously other than when it blows..
  16. Forced Induction
    In a bit of a dilemma. For starters this is not the casual d16 vs b16. Please continue. I have a y8 head delta 272-2, supertech springs and retainers. Y7 block a6 crank vitara/eagle. Z6 trans with rebuilt obx LSD. An opportunity has came up where I could add on 1.5k$ to my total for a b16...
  17. Forced Induction
    I have an 85 civic si, with d16a1 dohc motor, gsp t3t4 57trim turbo, im runing obd0, i have a p28, and a obd1 jumper for it, but i put the p28 in, and it wont even start! Please help
  18. Forced Induction
    How many miles does your Vitara build have, what size turbo, hp/torque numbers, fuel, and amount of boost you were running? What oil and weight? Remember as a daily driver will help answer my question. I am seeking the answer to find the average mileage a GOOD tuned boosted Vitara setup has...
  19. Showcase
    hey guys whats up, i used to have a boosted hx coupe until a guy at work rear ended my car. i bought a 99 ex sedan about 2 weeks ago completely stock for 4000, yesterday i removed all my stock stuff and swapped it for my function and form type 2 and camber kits. Exterior -drag dr-41 +40mm -...
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