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 Post subject: How to build a RallyX car in 4294967296 excruciating steps.
PostPosted: Thu Jan 17, 2008 2:23 pm 
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Just call me Bo

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Location: SYPHAJFD
Yep, it's that easy! :)

As a side note, if you immediately recognize the number listed in the thread title, you are a geek! :D

As some of you know, my last RallyX rust bucket met its demise sometime last year and I've been on the lookout for a suitable replacement shell ever since. I finally stumbled across a candidate a few weeks ago and, like so many strays before it, I brought it home to live with me. The car is a '88 Civic DX and the motor has a blown head gasket so I was able to pick it up for a song. Actually, I don't sing very well so there was some cash involved but it wasn't much. :)

Anyway, I decided to take some pictures of the dismantling process so I wouldn't have to remember where certain things went. I do have my AutoX CRX as a reference but I wasn't sure if there were any differences that might catch me out. When it came time to actually pull the dead Civic motor, I couldn't find the chain setup that attaches to the motor and I wanted it out NOW.

Lacking any real mechanical and/or fabrication skills, I did the only thing I could think of-- I used my geek skills! Sort of. After discussing the potential stupidity of my solution (after the fact!) with a few friends, they suggested I should share. If anything, it illustrates something you probably shouldn't do which can be just as valuable as knowing what to do. At least that's what I keep telling myself! :D


Removed radiator, battery, intake and exhaust shield - Rusty brackets everywhere!
Image

A little more progress. No front bumper made it easy to remove the dead A/C stuff.
Image

Yep, it's a Civic! Ready to pull the motor but where are the chains for my engine hoist?
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Here is where the stupidity sets in. After looking for the chains that attach to the motor and then realizing an hour later that I lent them to somebody that lives an hour away, I had a conundrum. Was there anything laying about that I could use? I couldn't find anything suitable so I went inside to warm up in my office for a few minutes. After sitting down in my chair and looking up at one of the bookshelves, I noticed a box that I hadn't thought about in a long time. It contained some phone cabling that somebody gave me a long time ago thinking it was network cabling. I never used any of it but after picking up the box and examining the cable, I had what could easily turn into one of the worst ideas ever. See where this is going?

Innocent looking box of phone cabling. Will 1000ft be enough?
Image

I wrapped ~15 loops of the cable around and through the side motor mounts and was fairly careful to maintain even tension across the strands. After that, I hooked up my engine lift and stood back to contemplate what was about to happen. After a bit of contemplation, I went back inside to inform my brother that he may need to be ready for a quick trip to the emergency room.

Hooked up and ready to lift?
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The big picture: Will it hold? More importantly, will it blend?
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Ta Da!
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Still hanging in there!
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Rusty brackets everywhere! Calgon, take me away!
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I managed to survive the incident despite my best attempts to crush myself. When I first started to lift the engine, I was met with a bit of resistance. How much resistance? Enough to start lifting the entire front end of the car a few inches! I carefully dropped the engine back into the engine bay and looked the whole thing over again. Imagine my surprise when I realized that I forgot to disconnect the shift linkage. Doh! No problem. I'll just crawl under the car (and dangling engine) and disconnect it, right? Right. I did put a jack stand under the oil pan just in case but it was still a little spooky under there knowing what was holding the engine in place. I actually never got directly underneath the engine but the entire setup still made me a bit nervous.

When I started to lift the engine again, I noticed that one of the strands of cabling got pinched between a motor mount and the chassis mount severing it. I thought about redo my makeshift harness but then thought better (worse?) of it and pulled the motor anyway. Besides, what was the worst that could happen?

Now all I have to do is pull the drivetrain out of the busted CRX and move it over to the Civic. Unfortunately that includes the entire wiring harness and a few other odds and ends due to the fact that the Civic used the hated dual-port injection system unlike the CRX. I'd hate to know what the Vegas odds are on me getting the Civic running again but I try to ignore the haters anyway. Somebody explain to me why we do this again? :D

Jim


Last edited by JamesFeinberg on Thu Jan 17, 2008 8:41 pm, edited 2 times in total.

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 Post subject:
PostPosted: Thu Jan 17, 2008 2:30 pm 
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I err on the side of being stupid
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I am probably the only one who has thought this but....


looks like fun to me!!

The harness is a SOB. I have removed 2 now and about 1/2 thru the second harness removal I was hating life. I cant imagine it being that much fun putting one back IN! Maybe you will get luck and some of the mundane stuff will plug into the Si harness.

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 Post subject:
PostPosted: Thu Jan 17, 2008 2:45 pm 
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Just call me Bo

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Ryan Holton wrote:
The harness is a SOB. I have removed 2 now and about 1/2 thru the second harness removal I was hating life. I cant imagine it being that much fun putting one back IN! Maybe you will get luck and some of the mundane stuff will plug into the Si harness.


Not exactly what I wanted to hear. :)

It may even be worse for me since I am planning on swapping out the instrument cluster as well. The Civic DX cluster doesn't have a tachometer among other things. The engine harness doesn't seem that bad (of course, I haven't done it yet!) but I'm really not looking forward to getting behind and under the dash.

I was hoping to get most of it done this weekend but with the bitter cold, I'm not sure I want to be messing with 20-year-old plastic bits. At the very least, my cheapo HF heat gun may see a little action.

It will definitely be a small miracle if I can get it running by Feb. 2nd.

Jim


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PostPosted: Thu Jan 17, 2008 2:56 pm 
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I hate to be the wet blanket but swapping the harnesses takes both dashes out and most of the interior out. There are 2 harnesses Engine and Dash. The dash harness goes from the front lights to the taillights. The engine harness is stupid easy.

Hark, the Honda swap boys can help you out here.

http://fourthgenhatch.net/mpfi.html

Thats a pretty damn comprehensive write up on the wiring changes on the MPFI harness to run the Si engine.

You can then the take the MPFI harness out and sell it on Ebay for ~$300

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PostPosted: Thu Jan 17, 2008 3:13 pm 
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It would def be easier to convert everything over and not change the harness' . i cna prob come up with the injector box and the injector clips is you want. Let me know.

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 Post subject:
PostPosted: Thu Jan 17, 2008 3:18 pm 
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Just call me Bo

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Yea, I wasn't very clear. The plan was to swap only the engine harness and hack the main harness. However, if the engine harness is worth even half that on EBay (which is more than I paid for the Civic), I might hack the Civic's engine harness and sell the CRX's.

Thanks for the link. I remember reading that a few months ago but I had forgotten about it.

There is a guy in Greensboro that put a CRX Si cluster in his '90 Civic DX and he said it was pretty easy as far as wiring. The only extra wire he had to run was for the tachometer. I'm going to dismantle the CRX dash first and if it seems like a real pain the rear to deal with, I can always do something like this. :D

Maybe I'll get this thing running by the 2nd RallyX of the season... :roll:

Jim


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PostPosted: Thu Jan 17, 2008 3:24 pm 
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dont hack something you can sell. i can prob come up with the extra stuf fyou need off the yard.

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http://www.wagnersauto.com for your salvage needs
2000 miata se Estreet,going to rally
2004 mazdaspeed miata bsp #77
shifter kart also(someone buy this $1500)


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 Post subject:
PostPosted: Thu Jan 17, 2008 3:28 pm 
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Just call me Bo

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jeremy gast wrote:
It would def be easier to convert everything over and not change the harness' . i cna prob come up with the injector box and the injector clips is you want. Let me know.


Thanks Jeremy. I *think* I have everything I need since the CRX was running before the rear subframe decided it didn't want to be attached to the car anymore. If I need any extra bits, you'll definitely be the first person I call.

And I'm finally going to use that spare steering rack I bought from you 2 years ago! :)

The only real puzzle at the moment is my desire to do something about the rotting suspension bushings. While the poly kits are super cheap for Hondas, I'm not sure it would be wise to use them in a car that will see rough terrain. Replacing them with stock bushings (or Mugens) is too expensive to justify for a "beater" and I'm not aware of any other options. I'll probably leave them alone for the time being and try to pick and choose which ones are in the best shape between the 2 cars.

Jim


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 Post subject:
PostPosted: Thu Jan 17, 2008 4:39 pm 
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Not spectacular just decent
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I think THSCC should have its own reality show. Sort of like Iron Chef meets Sanford and Son.

:P

"I peed. I peed"

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PostPosted: Thu Jan 17, 2008 6:48 pm 
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Good lord man. I haven't laughed that hard since Bob started drinking heavily. How is Bob, anyway? :lol:

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 Post subject: Re: How to build a RallyX car in 4294967296 excruciating ste
PostPosted: Fri Jan 18, 2008 2:05 am 
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Got Powah?
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JamesFeinberg wrote:
As a side note, if you immediately recognize the number listed in the thread title, you are a geek! :D

Jim


I am a geek, thank you very much, but I had to google the number to find out what it was. From http://en.wikipedia.org/wiki/IP_address

IP version 4 addresses

IPv4 only uses 32-bit (4-byte) addresses, which limits the address space to 4,294,967,296 (232) possible unique addresses. However, many are reserved for special purposes, such as private networks (~18 million addresses) or multicast addresses (~270 million addresses). This reduces the number of addresses that can be allocated as public Internet addresses, and as the number of addresses available is consumed, an IPv4 address shortage appears to be inevitable in the long run. This limitation has helped stimulate the push towards IPv6, which is currently in the early stages of deployment and is currently the only contender to replace IPv4.

IPv4 addresses are usually represented in dotted-decimal notation (four numbers, each ranging from 0 to 255, separated by dots, e.g. 147.132.42.18). Each range from 0 to 255 can be represented by 8 bits, and is therefore called an octet.

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 Post subject:
PostPosted: Fri Jan 18, 2008 8:42 am 
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There's no place like 127.0.0.1 .

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 Post subject:
PostPosted: Fri Jan 18, 2008 8:43 am 
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*snort*



:roll:

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PostPosted: Fri Jan 18, 2008 8:52 am 
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If I never go to another AX, Track Day or attend my first Rally Cross I will still pay my dues because this forum is worth the price. I'm all for Spratte's reality show concept. Get Donnie Barnes on the line, he wanted to do that thing in Wilmington so maybe he will head this up. If Speed won't pick it I think The Fine Living Channel would put it on after that show that the guy travels the world drinking.

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PostPosted: Fri Jan 18, 2008 8:55 am 
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Actually, Mike, I don't think IPV4 is the key here, the main thing is that 4294967296 is 2^32 (2 to the 32nd power), which is therefore the size of the address space on any binary device using a 32-bit-wide "pipe" (CPUs, memory, network protocols such as IPV4, etc.).

When computers went from 16 bits to 32, I remember a major selling point was that the address space would increase from 64k (which was pretty small, even at the time) to 4GB (which was inconceivably large at the time).

I haven't been following the industry lately, but I assume modern operating systems have long since worked around the 4G address limit...

Back to talking about cars? Image

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