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Old 26 Aug 2007, 09:10 am
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Default swaping a b18c into an ls teg?

i am trying to swap out my b18b1 (obd2) with a b18c (obd1), i know i am going to use my factory trans since it will bolt up, but how will i deal with the wiring and such to go from non vtec to vtec? im assuming that my factory wiring harness will work and i would just run some wires for the vtec. the ecu will be a p72 and i will have a dc sports header on it along with a skunk 2 intake manifold (so i wont have to deal with dual plenum and wiring) if that helps at all
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Old 26 Aug 2007, 09:18 am
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The easiest thing is to get the B18c wiring harness. if you get a complete one all you have to do is unplug the main harness connector from the fuse box under the hood, pull out the other motor harness and all, and drop the other motor in with the complete harness and plug it up. HOWEVER, you will need the correct motor mounts, and axles. You cant just "wire" into to make the vtec work. You will need to convert the motor to OBD2 also. you will need the newer knock sensor, distributor, oil pump, and injectors. this will eliminate all of the painful wiring that EASILY gets messed up. 99% of problems with engine swap come from wiring. This is the easiest and cheapest route also. OH almost forgot, while the engine is out, I would replace the timing belt also, its much easier to get to.
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Old 26 Aug 2007, 09:28 am
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theres conversion harnesses to convert from obd2 to obd1 and yes you can just "WIRE VTEC" using the pinouts but make sure you have a gsr ecu cant use your ls ecu wont work. get rid of that dc header dc headers are crap
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Old 26 Aug 2007, 09:36 am
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yep and another future max and match car on the way
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Old 26 Aug 2007, 09:40 am
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Its a direct swap since you have all the parts need for a B-motor. The wiring is easy all you have to do is wire for vtec and knock sensor. OBD2-OBD1 could be bought from rywire.com they also sell kits from non vtec to vtec if you are unsure of the wiring. Now on the tranny why would you keep the LS tranny if you going for a rev happy motor? Your going to kill the performance of the B18C, I suggest of swaping that out also.































No longer gears dont mean better
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