As stated above...I will be doing this swap in a couple of weeks (maybe sooner)
it all depends on how quickly I can aquire to misc tools and items I need. Since
this will be my first swap of this type and I don't have access to a garage,I want
this to go a smoothly as possible. Here are my concerns:

1. I know both systems are MPFI...is it just plug and play or is there wiring that
has to be done? If so...what needs to be done?

2. Since I'm adding approx 60 hp off the bat by swapping engines( )
a few things concern me...brakes and drive train. Do I need to upgrade them?
Since the Si has the rear assembly..is there any benefit to upgrading to the rear
disc brakes? As for the drive train..do i need to swap over the Si hubs to the Hf?
( I have no plans on doing a B series swap...but you never know)

3. Since I dont have a garage ( )...I planned on doing it Lo-tech style:
a couple of roller pallets,jack stands and a floor jack ( and a couple of nice
sunny days)...where should i start...the parts car (Si) or the recepient ( Hf).
How long should this take?

4. I remember breaka (or whatever he calls himself theese days ) doing a
write up about redoing the oem engine mounts and making them tighter..
anybody have a clue on that or does someone make a stiffer motor mount
for the rex and civic ?( the car is over 12 years old...gotta do somekind of
lift and tuck work)

I know that this has prob be covered by someone before...but I'm just
trying to make sure I have everything ready to go. Any info or insight
is welcome.

Thanx


Modified by audioroach at 9:38 PM 5/26/2003

 

if you going to keep you hf tranny then no to change to knuckles if changing to si tranny then yes(im not sure)take both axels of same cars and compare them in lenght and both ends that go in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88CRX &raquo;</TD></TR><TR><TD CLASS="quote">if you going to keep you hf tranny then no to change to knuckles if changing to si tranny then yes(im not sure)take both axels of same cars and compare them in lenght and both ends that go in.</TD></TR></TABLE>

Oh I forgot....I am swapping out the complete engine and tranny as well
sorry about that.

 

i'm not sure on the wiring, but use the si ecu. as for the axles, use the hf axles, or you will have to switch the hubs too. the hf has a 23 spline count on the outer joint, and the dx/si has 26. the inner joints are the same, so either axle will go into the tranny.

with all this work, instead of changing the motor, tranny, etc, why not just swap the head, intake manifold, and ecu? the hf has higher compression, and the heads are interchangable. the only real difference between the motors is the 8 valves vs 16, the intake manifolds are suposedly different, and the cams are different. save yourself time and effort. just swap those couple of things.

 

if i was doing the swap this is what i would use off of the si.
engine, tranny, ecu, the si map sensor,si spindles and axles, if you want to do the rear disks you can but they weigh more than your drums do.

i would take all of the parts off of the si before you do anything to the hf.

its pretty much all plug and play use your factory hf engine harness and the only wiring modification you will have to do is when swaping the map sensor to the si you are going to have to use the connetor from the si one .. you will see what im talking about when you go to do it.

as for the engine mounts if you dont mind a little vibration at idle get a set of polyurithane engine mount inserts for like 20 bucks they help out a bunch...

its a pretty strait forward swap. you picked a good swap to be your first one.

scarponze

 

Bump for the day crew.....
Share the wealth...dazzle me with your knowledge.
Any other tips or insights?

Thanks

 

Fot the mounts you can go out and buy polyurethane caulking, fill the mounst, and let it dry.

 

swap out the complete eng/tranny. the SI tranny has better geraing than the HF.
everything is pretty much straight forward, so even tough is you first swap, it shouldn't be that difficult.

good luck... btw get yourself like 3-5 cans of PB Spray/WD-40 YOU'll NEED IT!

 

Yeah ....thats a definate must have.
Well the car used to have an intake and exhuast ( which the former owner
kept) but i got the header ( yeah)..so this may be a fun thing.

wish me luck...any more tips

 

nah i did that head swap 2 years ago. I also had a d16a6 motor so i know the difference. Swap out the whole engine. using the si block made almost a full second off my et.