planning on swapping a b18c into a crx... which model crx is going to give me the least hassle for this. I was told by one friend, I need the SI. That if I get any other model I will have to redo wiring and change the hubs. Another friend said that the SI or the HF would work. Which of these two is correct? I am looking at CRXs to buy now, and really need to know. Thanks in Advance.

Zack

 

The Si is the only year with the correct front hubs.

If you get a HF, or DX you'll have to swap the front brakes out with an Si. It isn't hard finding the fronts. People sell them on the internet or in local junkyards.

A STD, and DX have whats called multi fuel injection. A Si and HF have dual. Dual is what the GSR motor runs on, so an STD or DX will have to be converted. That is not particularly hard either.

Either way putting a b18c in any obd0 car will require some attention. You would need to convert the car to obd1 if keeping the b18c distributor.


If I were you, i would find an HF or Si. Get the b18c, run a cable LS or 92-93 integra gsr tranny, and run a b16 obd0, (pr3 or PW0).

 

Thank you VERY much for your responses-- (did you respond to all my posts?!) I see people had looked at my post-- but not POSTED A RESPONSE- either way, hondatechers always come through. Thanks all the same

Zack

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djay86 &raquo;</TD></TR><TR><TD CLASS="quote">The Si is the only year with the correct front hubs.

If you get a HF, or DX you'll have to swap the front brakes out with an Si. It isn't hard finding the fronts. People sell them on the internet or in local junkyards.
</TD></TR></TABLE>

Actually, the DX and Si both come with the 32mm hubs. Only the HF and STD models (4-spd) come with the smaller hubs. There are some DX STD models and more DX 5-spd models so the ones with 5-spd have the bigger 32mm hubs.

Swap wise.....

HF - already MPFI, but needs bigger hubs
DX - has bigger hubs but needs to first be converted to 4 injectors
Si - has 4 injectors and bigger hubs, but heaviest model

Once you convert to MPFI (if you get a DX), then you can do the next step and go OBD-0 to OBD-1 and run the P72 and have everything, including IAB, hooked up for the GSR motor as it's not that complicated to do nowadays.

Next, you have to figure out what mount kit out there (like HCP) will allow for a GSR motor into the CRX w/out touching the hood. The reason why there's hood clearance is because HCP took into account the lower center of gravity for better handling.... just be careful running a 4-1 header as that'll hang low. It's a compromise in a small engine bay.... hood clearance issues or ground clearance issues.

 

thank you for the response. Keeping in mind that I currently have a 94 GSR w/ a JRSC and the ITR LSD tranny, what should I be doing to swap my goods into whichever rex I get. I realize I won't want to use the hydrolic tranny, so which tranny would you recommend... and which mount kit would you recommend-- I WILL be using a 4-1 header!!! I can't afford to comprimise with the ground/hood clearance sinereo

 

Any model CRX is a good choice as they will seriously haul with the setup you have. Of course the HF is the lightest and would be a better choice from that standpoint.

 

I think HF might be teh way to go... how much money do you think I'll end up throwin down for the hubs, axles, and a decent cable tranny w/ LSD? I was told I should probably just sell my ITR tranny-- too much hassle cause it's hydrolic

 

HF and DX are basically same weight... DX already has hubs all you have to do is add a few wires to wire the injectors, knock sensor....

 

what is the weight difference in the si and the hf and why do the two weigh different amounts?? would it actually make a difference because I'm doing a swap. If the si weighs more because of the different motor, that's trivial for my project. If the si weighs more because of the different front breaks, that's gonna be trivial--as I need to get the si break conversion if I do the swap w/ the hf. Overall, wouldn't the SI be the best for the swap???


Modified by 92TEGsrSC at 9:41 PM 11/10/2003

 

The extra weight of the Si is mainly due to the electric sunroof which is surprisingly heavy. But the thing to consider is, are you taking racing that far into account that the weight becomes that much of an issue?

 

nope... sunroofs are definately a good thing to have... even at 2100, I'm still clockin in 500 lbs less than my teg

 

I used 90 inegra front hubs. I get them for 60 bucks and they bolted right up. Took next to no time at all

 

thanks for all the info-- very good to know

 

Since you presumably want a fast car, it is best to go with the lightest car you can get. That would be a 1988 HF, 1988 DX, or 1989 HF. All others are significantly heavier. I would personally avoid all SIs due to the great weight increase due to the electric sunroof. This is weight in the worst possible place than can't be easily lost. So unless you feel that having a sunroof greatly contributes to your total driving pleasure, stay away from SIs.

 

I agree completely for performance reasons... a sunroof is gonna make for hard lbs to lose. Either way, I think it will still be a mean rex

 

on the other hand if this is going to be a street car, id recomend getting a si. cause you aint getting AC and a sunroof helps on those hot days.

 

this is also VERY tru

 

SI wiring harness still needs to be converted from OBD0 to OBD1-- correct?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TEGsrSC &raquo;</TD></TR><TR><TD CLASS="quote">SI wiring harness still needs to be converted from OBD0 to OBD1-- correct?</TD></TR></TABLE>
yes.......... see blown90hatch

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TEGsrSC &raquo;</TD></TR><TR><TD CLASS="quote">Keeping in mind that I currently have a 94 GSR w/ a JRSC and the ITR LSD tranny</TD></TR></TABLE>...
Use the new Hasport mount kit and hang onto that itr tranny. You won't have to deal with the hassle of selling a killer tranny that you know about, and then buying an old, possibly grinding, probably non-lsd cable tranny that you don't know much about.
The hood thing could be an issue however. I used 3/8 in. nylon spacers between the hood and hinge to give enough room to clear a b20vtec. Maybe ghetto, but it works.

 

sounds like a good plan-- I don't really wanna give up my ITR tranny w/ LSD!!!

 

get a 87' crx my friend had one for a while i was able to lift the rear and i only weight 150lbs

 

but the 87 rex's are so much uglier!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djay86 &raquo;</TD></TR><TR><TD CLASS="quote">A STD, and DX have whats called multi fuel injection. A Si and HF have dual. Dual is what the GSR motor runs on, so an STD or DX will have to be converted. That is not particularly hard either.</TD></TR></TABLE>

I think you mean the STD and DX are dual points and the HF and SI are multi points and so is the GSR

any multi point would be the least hardest