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Old 08-04-2009, 07:46 AM   #1
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Default RWD Civic Conversion

I have a question. Im trying to convert my civic to rwd and ive read somewhere that you can use the drivetrain/differential out of a honda s2000, my question is do i also need the subframe? I imagine i do but i have people telling me i should just build a custom pipe tubing frame and set the civic shell on that. Im not sure i want to go that route tho, anyone already done this? Im guessing i need the subframe but id like to know for sure before i spend my money on one.
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Old 08-04-2009, 07:50 AM   #2
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Default Re: RWD Civic Conversion

theres no bolt in conversion or anything like that. its all cut and weld. and its a dumb thing to do anyways in mine and most peoples opinions. the subframe will do you no good, you will need to have a tube welded suspension and setup in back
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Old 08-04-2009, 07:51 AM   #3
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Default Re: RWD Civic Conversion

ask this guy if your really serious...http://www.honda-tech.com/showthread.php?t=2618576
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Old 08-04-2009, 07:51 AM   #4
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Default Re: RWD Civic Conversion

It's been done before, but it is HELLA work and manufacturing, imma see if I can find the link to it.
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Old 08-04-2009, 08:25 AM   #5
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Default Re: RWD Civic Conversion

im not concerned about the work involved i know how to cut and weld i just wanna know if thats a part that i will need before i spend my money on it

not to be an *** but i dont care if nobody thinks i should do it. i plan on it and its been done before im just asking what i need and dont need
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Old 08-04-2009, 08:30 AM   #6
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Default Re: RWD Civic Conversion

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Originally Posted by SoFresh1189 View Post
I have a question. Im trying to convert my civic to rwd and ive read somewhere that you can use the drivetrain/differential out of a honda s2000, my question is do i also need the subframe? I imagine i do but i have people telling me i should just build a custom pipe tubing frame and set the civic shell on that. Im not sure i want to go that route tho, anyone already done this? Im guessing i need the subframe but id like to know for sure before i spend my money on one.
first, i'd like to know where you read that. i'd like to read it for myself.

second, you may be completely legit and capable.. but you've been on here for a week so i'm strongly inclined to call BS. benefit of the doubt though, what's your experience with "frame-up" rebuilds and welding?

last.. if this is your first build and your budget is less than $9,000... back to the drawing board!
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Old 08-04-2009, 08:38 AM   #7
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Default Re: RWD Civic Conversion

i have no experience. gotta start somewhere tho right?
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Old 08-04-2009, 08:44 AM   #8
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Default Re: RWD Civic Conversion

cmon seriously tho, im not looking for people to tell me not to do it, can someone just answer my questions?

also, i may have only been on the forums for a week but its not like ive only been working on cars for a week. ive got a round-about idea what im doing ive just never done a swap like i intend to do.
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Old 08-04-2009, 10:28 AM   #9
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Default Re: RWD Civic Conversion

Most RWD Civic/Prelude/CRX projects that I've seen, people completely fabricate their own subframe and reuse an existing differential. If you're doing an S2000 swap, it would make sense to use an S2K diff, except that they don't hold a lot of power. I've seen people use Nissan diffs in high power F20c applications and they tend to hold up better.

In the above link with the AWD EG hatch, the guy is using a CRV subframe and CRV diff, which appears to work for him with a bit of modding. I would advise not using the CRV diff on a high horsepower application either though... it also doesn't hold much more than stock power, and since its a clutch setup, it tends to slip more than people want. They are a bit problematic, even in stock HP CRVs. I've seen people use AWD Civic wagon diffs on AWD B series setups with better results... since it's a gear type diff, it tends to be stronger. Don't know if it'll mate to an F20c driveshaft, but anything's possible with enough $$ and welding.
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Old 08-04-2009, 10:32 AM   #10
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Default Re: RWD Civic Conversion

well first of all how much money do you have? your going to 10's of thousands to do this.
your going to need to be one hell of a technition to pull this off... i have only seen it done 2 or 3 times. and ones a full drag car,and the other has a vet motor.
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Old 08-04-2009, 11:06 AM   #11
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Default Re: RWD Civic Conversion

the guy i bought my first car off of had two rear engine, rear wheel drive cars (i cant remember what kind, i believe a crx and a 5th gen civic hatch) he said he bought a spare shell for each and cut out the front end and put all the subframe, engine mounting locations ect into the rear of the car. but thats rwd, rear/mid-engine. it sounds to me that yur looking to do a front engine, RWD car tho.
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Old 08-04-2009, 11:21 AM   #12
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Default Re: RWD Civic Conversion

Are you planning on keeping the motor in the front?
Are you planning on using the stock motor?
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Old 08-04-2009, 11:40 AM   #13
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Default Re: RWD Civic Conversion

thank you vindicator for actually answering my question

would any other differential fit in an s2k subframe?
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Old 08-04-2009, 11:46 AM   #14
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Default Re: RWD Civic Conversion

my intensions are to put a rotary motor in the front and convert it to rwd

im more concerned right now about the rwd conversion. what would be the best setup? if i shouldnt use an s2k rear subframe/differential/suspension what should i use?
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Old 08-04-2009, 12:03 PM   #15
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Default Re: RWD Civic Conversion

That entirely depends on your motor choice and location. If you went with, say, a Northstar V8 in the back over the wheels, it would be much different than the wenkel in front with a torque tube, divorced transmission/3rd member - which is high HP compatible.

Basically you are at a juncture where you have a lot of options that depend on motor mount points and overall motor/trans length.
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Old 08-04-2009, 12:16 PM   #16
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Default Re: RWD Civic Conversion

Just make a build thread.

I'd do a s2k motor simply because it has been done and its not to big either.
A north star v8 in the rear!?! The **** will pop a wheely and never come back down lol
I would definetly keep the motor in the front for weight reasons
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Old 08-04-2009, 12:22 PM   #17
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Default Re: RWD Civic Conversion

A buddy did a RWD CRX with an Ls motor, There is Alot of custom fab in doing this, Cutting/welding/fitting.

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http://www.youtube.com/watch?v=-j3rbPUNkaY

http://www.youtube.com/watch?v=diL3Q7fF8X4
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Old 08-04-2009, 12:40 PM   #18
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Default Re: RWD Civic Conversion

Either MR or FR . Lots of cutting> the S2000 rear subframe would have to be fitted to the rear of the car if you intend on doing FR but frankley It would be cheaper to do an AWD swap. Since honda actually made civics with Real time 4wd that would be my choice. but thats just me
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Old 08-04-2009, 12:48 PM   #19
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Default Re: RWD Civic Conversion

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Just make a build thread.

I'd do a s2k motor simply because it has been done and its not to big either.
A north star v8 in the rear!?! The **** will pop a wheely and never come back down lol
I would definetly keep the motor in the front for weight reasons
Well the point of northstar in the back was you could drop the whole K out for ease of use. It wouldn't be much different in concept than an L67 Fiero swap, which is pretty tried and true.

I'm just saying motor location and type is the determining factor of what rear setup to use. Certainly s2k would be simpler...take the PCM and all and swap it on over.
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Old 08-04-2009, 12:56 PM   #20
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Default Re: RWD Civic Conversion

Actually, if he was going MR setup, there's a guy who's already done an H22 into the back of an Integra *very* cleanly. If you can find his thread, you can see exactly what you're up against.

I like craziness as much as anyone, but I'd be very afraid of a northstar in the back of a civ lol.
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Old 08-04-2009, 02:12 PM   #21
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Default Re: RWD Civic Conversion

^^ that thread scared me lol
did he finish it yet??

lo jack-- i know what you mean. either way its going to be a pain the *** and hes going to have to be pretty motivated to pull this off.
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Old 08-04-2009, 02:26 PM   #22
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Default Re: RWD Civic Conversion

The mid engine, RWD H22 Integra is done and racing, and it's apparently a beast:

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Click the image to open in full size.
Side scoops are necessary for cooling:
Click the image to open in full size.

Entire thread here, as the pics are dead on the h-t thread now:
http://www.team-integra.net/forum/di...TopicID=106670

Even if you don't want to do a midengine setup, this will give you a very good idea of exactly how much fabbing is required for a project this big. For his rearend setup, he actually cut out part of the front framerails from a prelude and used them in the rear of the Integra.
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Old 08-04-2009, 02:30 PM   #23
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Default Re: RWD Civic Conversion

nice. and youd never even know
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Old 10-18-2010, 04:27 AM   #24
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Default Re: RWD Civic Conversion

I HAVE A 79 CVCC THAT AM GOING TO INSTALL A LS6 IN WHEN GET BACK FROM DEPLOYMENT ,IF YOUR GONA SPEND THE MONEY JUST MAKE IT A FULL TUBE CHASSIS AND NARROWED 9 INCH
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Old 10-25-2011, 03:18 PM   #25
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Default Re: RWD Civic Conversion

ok. poor mans rwd swap. first off lets open or minds to what makes everything work. take a 97 civic turn the d16 or b18 or what ever motor and trans and turn it sideways in the engine bay. build mounts for the trans and motor and get it to hang there. then pull the trans out and split it weld the diff inside the fwd trans. and bust out your aluminum welder and weld a circle plate over the cv shaft input which would normally be the driver side one. then put all back together and put it in. the dismantle the pass cv shaft and take it to your local custom car shop and have them cut the cup off and weld on a s13 ujoint end. cut a tunnel through the middle of your civic to the rear of it. then get some 1/4 inch steet plate and a s13 rear end.... pumpkin, crossmember, and knuckles and stuff. since your a fabricator you should be able to finda a way to mount it in there cut WELD and re cut and reweld. once its in build a single piece drive shaft and finish all the little things. this is a ruff outline BUT IT WILL WORK IF YOU ARE AS GOOD AS YOU SAY!!! figure it out its just metal wires and fun stuff. any questions IVE DONE IT. so hit me up. thanks. DO NOT FULL TUBE AND 9 INCH IT. its not worth it.
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