i jsut bought an 89 ef i have an 89 si motor sitting here, will the si motor fit on the ef tranny?, and is it pretty strait forward of are there a few wiring issues?

 

What model of '88-91 Civic do you have? The base hatchback? The DX?

The '89 Si engine you have is stamped "D16A6," right?

 

Ef is a body code man,
you got EF: dx, si, cx.

your d16a6 engine will fit in there like a glove, the only exception is transmisison wise, the 88 got a spline less than all his common brother, you can do a wiring conversion, it's easy, you will however need the d16a6 ECU in there.
try searching : wiring convertion or Wiring in the EF section you'll come up with plenty of result for your convertion.

see ya
good luck
KRanked

 

sorry about the shitty question what i have is a crx hf with a blown motor, i have a d16a6 replacement motor what is all need to make it work anbd will the 89 hf tranny bolt up to it

 

Yes it will bolt up and so are the wires because HF is MPFI too...

 

can i use the hf ecu or will i need the a6 ecu??????

 

yeah the hf will bolt up, but i believe it has really crappy gear ratios. you might want to search on that or someone should give some more insight on it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Origin &raquo;</TD></TR><TR><TD CLASS="quote">but i believe it has really crappy gear ratios.</TD></TR></TABLE>

very true. 5th gear at like 90-95mph is only revvin' like 3k rpms in my friends HF.

the tranny will bolt up, but it would be a VERY good investment if you could get an SI tranny to go along with that motor. even a DX one will be a lot better than the HF. hope that helps a little!

 

90mph at 3k sounds good to me. lol toobad it isnt as god as it sounds