VitalSpeed_CRX Posted May 2, 2007 Share Posted May 2, 2007 Hey wassup everyone. I'm new to this forum.(HI) This is my setup and whats being added at the moment. Also posted this in CRX but I figure more people would come here and might get some more help. Honda 1989 Dx JDM D15B-VTEC (Around 35,000-40,000 miles on it) Automatic-(Everyday used Car but still looking for speed) JDM Racing Header. N1 EXTREME Full Catback Exhaust System ODB1---P84 ECU OEM WIREHARNESS(1989) Need 2 upgrade. New Radiator. Upgraded Cold Air Intake. All around Brake upgrade.(Rotors/Drums/Calipers) All around Parelli tires on stock CRX 15" Rims.(Spray Painted Black) Link to my Cardomain profile. http://www.cardomain.com/ride/765242 Q1: So there you have, it not sure if I forgot anything. A few things im still lost about. I know I have to upgrade my Harness for the Vtec to kick in. I'm not going to rip out the OEM one but will like to install the tips and have my mechanic wire it up.. Just not sure which to get. OBD1/OBD0 ---or--- OBD1/OBD1 ---or---OBD0/OBD0 (which im sure thats whats on it now) just not sure how the CRX wireharness runs. Im thinking I should go OBD0-OBD1 since the wireharness are OEM(89).My new ECU came with the harness but the wires are cut do i need to buy harness?.Should I just get a complete JDM D15B Harness? if so where?icon14.gif Q2: Im also thinking of going turbo for the fun of it. I know I said its a everyday used car and also a automatic but also looking for a sleeper smile.gif ...Im sure I got more HP with all the Bolt-ons and mods.. Is there anything I should buy or get ready before I install a Turbo?. (About 8-10 PSI T4). Can I just put it on a turbo without having to worry about blowing my motor?* (*with the setup I have now*) I heard something about it ok to run it with my stock pistons but only at 6 psi. Hope to hear from you soon. Thanks in advance. UPDATED MOTOR SPECS: D15B * VTEC * Found in: o 1991-1999 Honda Civic VTi EG4 (Japanese Market) + Displacement : 1493 cm3 + Bore and Stroke : 75 mm X 84.5 mm + Rod Length : 137 mm + Compression : 9.6:1 + Power : 130 hp @ 6800 rpm & 102 ft·lbf @ 5200 rpm + Valvetrain : SOHC VTEC + Fuel Control : OBD-1 MPFI Link to comment Share on other sites More sharing options...
mycarsux Posted May 2, 2007 Share Posted May 2, 2007 About the turbo w/ an auto tranny: Its going to be slow. I have no idea how boost pressure will be released. Someone inform me. I suggest doing AT-MT conversion since you've already done a good amount of work to the car. An auto tranny does not make your car a sleeper. Nice try though. You'll need a lot more than just bolt-ons for a turbo setup. click here Like for instance lower compression pistons. Your CR is 9.6:1. That would be close to ideal for an SC but not a turbo. Do lots more research. Link to comment Share on other sites More sharing options...
VitalSpeed_CRX Posted May 2, 2007 Author Share Posted May 2, 2007 Thanks for getting back to me.. what is slow? lol. how slow we talking? Slow to me is like 100 mph..Seams like turbo wouldnt be such a good thing to add with my set-up- What about a super charger.??? ..Wont do a AT-MT.. convertion too much to change and upgrade and pay to have done.. I drink alot but dont drink and drive.. most of my friends cant drive stick so atleast with it being AT. any of my friends can drive my drunk ass home. lol.. anyone got any input on the harness? or other upgrades I should do? Link to comment Share on other sites More sharing options...
CRG7 Posted May 2, 2007 Share Posted May 2, 2007 Thanks for getting back to me.. what is slow? lol. how slow we talking? Slow to me is like 100 mph..Seams like turbo wouldnt be such a good thing to add with my set-up- What about a super charger.??? ..Wont do a AT-MT.. convertion too much to change and upgrade and pay to have done.. I drink alot but dont drink and drive.. most of my friends cant drive stick so atleast with it being AT. any of my friends can drive my drunk ass home. lol..anyone got any input on the harness? or other upgrades I should do? Since you'll already be swapping the engine, it wouldn't be that much extra to do the AT-MT conversion. I hate wiring, and therefore never looked much into it -- always have others do it for me, lol -- but you'd need to do DPFI to MPFI as well with it. Also, is the ECU for an auto or manual? If no one else here can help on the wiring, I can give you the contact info for the guy that made up the harness for my CRX's B16 swap. Link to comment Share on other sites More sharing options...
..SSR.. Posted May 3, 2007 Share Posted May 3, 2007 Easiest thing for wiring would be an OBD-I engine harness, The D15B VTEC ECU, and a OBD-O to OBD-I conversion harness. Thats what I'm doing in a CRX Si I'm building. I hate hack jobs (using a VTEC controller versus the right ECU, etc). Link to comment Share on other sites More sharing options...
VitalSpeed_CRX Posted May 3, 2007 Author Share Posted May 3, 2007 wassup guys. The ECU I have for it, is a AT 92-95 Vtec-E (P84) Hope that extra info helps. SOHC VTEC-E Honda's next version of VTEC, VTEC-E, was used in a slightly different way; instead of optimising performance at high RPM, it was used to increase efficiency at low RPM. At low RPM, one of the two intake valves is only allowed to open a very small amount, increasing the fuel/air atomization in the cylinder and thus allowing a leaner mixture to be used. As the engine's speed increases, both valves are needed to supply sufficient mixture. A sliding pin, which is pressured by oil, as in the regular VTEC, is used to connect both valves together and allows the full opening of the second valve. Stock OEM harness right now (OBD-0) as far as the AT/MT convertion the motor I just got about 3-4 days ago is AT/ along with the ECU also being AT (dont really have the money right now) just have money saved for the harness. But thanks for everyones info so far.. Link to comment Share on other sites More sharing options...
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