Hey well im plannin on doin an Ls/Vtec swap on my 98 civic ek hatch and i have a few questions...... i know that i need an Ls Block and GSR head and Tranny now what ecu do i need and does my car need to be OBDOI converted to OBDOII or anything like that and i am lookin for any of those for the right price also i would like to put some performance parts on it as well but want something cheap and good results for now so if you could pm me or reply to this sometime it would be nice thanks

 

you need a 98 or newer LS block, and a 98 or newer b series vtec head if you want to be legal. you can do whatever if you dont care.

To make it OBD2 You need:
obd2 b series crank gear.
b series crank postition sensor.
Probably going to need a knock sensor. (have the hole drilled and tapped before you install the head.. )
obd2 ecu..
obd2a: 96-99 gsr (for gsr head) p30 (96-97 del sol vtec)
obd2b: 99-00 civic si p2t

You're probably going to want obd2a, since your car is 98 (obd2a). youre going to reuse the stock harness i'd imagine. (cant use an integra harness), and modify it to fit.

Could also run obd2a to obd1 with a conversion harness.. and a p28 or p72
Thats recommended because you're going to need a tune.

You dont need a GSR head.. can use a b16 head. either will work.
You're going to need a vtec conversion kit.
Gotta tap and plug the head. Need an oil line for the head/vtec feed.

All Civic SI mounts
Axles, half shaft and shift linkage from civic si or 94-01 integra

 

heres the answer for any other questions you have lol: https://honda-tech.com/zerothread/1923227

 

thats a good link..
could also use the search feature..
this has been covered 100234596 times before..

 

wow...... you really know your stuff man thanks thats a lot of stuff to do.....now i could do that or do a B16B swap my friend has one for 2500 or a could GSR my car for an extra 200 what would you recommend????

 

IMO id do the b16b thatd be sick but lsvtec is pretty nasty too but i would go b16b

 

b16b has only slightly higher torque numbers than the b16a..
i'd go GSR.. more torque..
you could also buy the b16b and sell the long block and use the tranny.. if it comes with one..
i like my ls vtec.. its low compression built for turbo..
its way faster than my b16a with CTR pistons, and skunk2 valve train..

 

Stay convert to obd1 and use the stock harness and P28 man. Trust me obd2 sucks!!!!!

 

If MD requires him to plug in for like an inspection, he'll need to be obd2. He can always use a conversion harness to run the p28, and just unplug the harness + p28 and run a stock obd2a p30 or whatever the del sol dohc vtec ecu is.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EK9Undisputed &raquo;</TD></TR><TR><TD CLASS="quote">wow...... you really know your stuff man thanks thats a lot of stuff to do.....now i could do that or do a B16B swap my friend has one for 2500 or a could GSR my car for an extra 200 what would you recommend????</TD></TR></TABLE>
GET THE B16B! thats dirt cheap and is still faster than a gsr. Then later you can build yourself an lsvtec with that sick setup. Just get rid of the bottom block and use a built ls block. that **** will be a beast. or you can get an aftermarket crank and turn your b16b into a 1.8 or 2.0 liter motor.

 

This is all true! And if you have a real CTR engine in front of you and you know the milage or near mileage of the engine i would pick up the b16b man thats me though! And he is right if you are worried about emessions then make sure you stay obd2 and a USDM Delsol Vtec (dohc) is a p30 at least the obd1's are haha whatever get the ctr motor man