LS/Vtec TECH
11-24-2003, 11:44 AM
#1
3.0 BAR
Thread Starter
Join Date: Feb 2003
Posts: 9,089
LS/Vtec TECH
Ok. Winter has arrived. Im thinkin ls/vtec in my 88 Si.
Where to begin... ok.. this is my idea..
- b18b shortblock (newest i can find)
- b16 head (my understanding is obd0/1/2 is all the same and its the IM and dizzy that are diff..)
- b16a1 (obd0) IM w/ TB and sensors.
- b16a1 (obd0) dizzy
- pr3 (b16 obd0) ecu.?
- cable trans.
i'll have to add what. 3 wires for vtec? everything else should just plug in? Does anyone forsee any problems with that setup?
Where to begin... ok.. this is my idea..
- b18b shortblock (newest i can find)
- b16 head (my understanding is obd0/1/2 is all the same and its the IM and dizzy that are diff..)
- b16a1 (obd0) IM w/ TB and sensors.
- b16a1 (obd0) dizzy
- pr3 (b16 obd0) ecu.?
- cable trans.
i'll have to add what. 3 wires for vtec? everything else should just plug in? Does anyone forsee any problems with that setup?
11-24-2003, 11:58 AM
#2
3.0 BAR
Join Date: Apr 2003
Posts: 11,058
Re:LS/Vtec fun
besides the mounts and shift linkage, it sounds like everything should be plug and play. i thought it was just two wires for the vtec though?? and is a pr3 really gonna be enough? you will be needing more fuel than just regular b16, hell, if i was you, i would just get an obd1 b16 wiring harness and obd1 ecu and go ahead and upgrade to obd 1, also then you wouldn't have to worry about running extra wires to the ecu 
11-24-2003, 12:09 PM
#4
3.0 BAR
Join Date: Apr 2003
Posts: 11,058
Re:LS/Vtec fun
Originally Posted by crx88Si
---- you're right i completely forgot about the pr3 being b16 arg!! maybe a type R ecu? or can I just chip a pr3 w/ b18c fuel tables?
11-24-2003, 02:01 PM
#7
3.0 BAR
Join Date: Apr 2003
Posts: 11,058
Re:LS/Vtec fun
just get an obd1 harness and you're in there. you could just chip the pr3 like chingro said, but i would just rather have vafc, but that's just me, having an lsvtec over a reg. b18, would be well worth the obstacles you face 
11-24-2003, 02:35 PM
#9
3.0 BAR
Join Date: Apr 2003
Posts: 11,058
Re:LS/Vtec fun
no, no, no, i was just saying that it will be easier to find obd1 b16 head than it will to find an obd0 head, and instead of finding an obd1 head and making it obd0 compatable, you might as well just get an obd1 harness and ecu (all you would be getting exra would be the harness, cause you have to get a diff ecu anyway you do it), also an advantage of getting a whole new harness would be that you don't have to run extra wires to the ecu, the harness would plug right up like factory.
