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Discussion Starter · #1 ·
hey guys i have my 89 civic in my garage and i need help, i did the y7 bottom end swap and the y8 vtec head and i need to know how i can wire up the vtec. I cant do a newer ecu because my civic is obd0 and the wiring is way too much work, how can i wire this up?? PLEASE HELP ME!! thanks
 

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Civic CX
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use a rpm activated swith, you know like the thing that sets off a shift light. you can buy them at jegs. just make sure that you don't set it too low.
 

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Civic CX
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Civic CX
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anytime. i know what a pain all of this electrical shit can be. good luck and let us know how it turns out. maybe even post something in the DIY section?
 

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looks like a good deal, but look at the shipping price. and it's used. wouldn't you rather buy a new one tomorrow for $20 more and have it right then and there?
 

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4800 rpms is stock full throttle and works pretty good for me with my mini me. 3800 is way too low.
 
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Discussion Starter · #11 ·
ok by the sounds of it im going to go with the rpm activation switch, how do i set it for a certain rpm?whats a good rpm for vtec to kick in, for like street/racing?
 
G

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Discussion Starter · #13 ·
geez this is such a hard decision on what to do, i have a VERY limited budget and i need something easy to install and that will work very well, i need this set up into the 14's for sure
 

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what mods do you have done? 14's is kinda hard to get to without some decent work. i'm talking all motor that is. and 14.0 not 14.9
 
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Discussion Starter · #15 ·
well my bros stock crx si did a 15.34 and i have header, exhaust, intake, intake manifold, slicks, vtec head, bigger injectors
 

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what injector do you have? they are probly gonna hurt more than help. stock injectors are fine for your setup. also what body do you have this in, a crx? if it's a crx then yeah you styand a good chance at hitting high 14's. also what trans do you have?
 
G

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Discussion Starter · #17 ·
yeah i'll probably be using the stock injectors, its in a ef civic (89), and i have a si tranny, also i just bought a msd rpm activator off here :D
 

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Civic CX
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$50 shipped is a good deal. let us all know how it turns out. i just did a mini me a couple months back. i have a z6 head and intake mani, short ram intake, p08 ecu and y8 trans. i ran a crappy 16.9 with allot of wheelspin. this weekend i'm going to the street races with some mount inserts and my drag radials. i'm tired of wheel spin.
 

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Civic CX
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tell me about it. i had allot of wheelspin. i still have stock suspension to so that probly doesn't help. even when i tried to launch at 2300 rpm i still spun allot. granted i floor the gas right after i'm done leting the clutch out but still, it was really bad time. it was something like, 16.9 at 89 mph. hopefully next time i go to the track it will be with the high compression z6 motor installed.
 
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