weirtech's project RWD CRX
02-02-2009, 07:15 PM
#1
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weirtech's project RWD CRX
i've had my car for 13 years now and have done an engine swap, nitrous, boost, etc. i've spent as much time working on the car as i have driving it. i thought about selling the car but realized i'd never get what i put into it and just couldn't part with the car either. i decided to start fresh and sell the drivetrain, turbo setup, all the parts i had and picked up a new drive train. i started this build almost 2 years ago and haven't had much time to work on it. i spent quite a bit of time working on it recently though because i want to be able to put the wheels back on it before the end of this month because the lease is up at my shop and i'm planning on moving. my goal is 450whp. i'm not building this car for drag or drift or road racing. i am building this car so i can drive it and enjoy it. i may track it for fun, but it isn't a priority for me.
here is where i started:
when i bought the ap1 drivetrain, it came complete with the rear end. the only things missing were the sub frame for the rear end and the ecu for the engine and some of the wiring to it. i'm planning on going with an aem ems anyway, so the ecu isn't a big deal, but i decided to sell the ap1 rear end and picked up an s14 rear end for 2/3'rds of what i sold the ap1 rear end for. i thought it would stand up to more abuse than the ap1 open diff anyway.
i already had a dh-racing billet tb so i figured i'd pop that on the new engine so i had to bore out the manifold.
here it was before i started cutting:
preliminary cutting:
some powdercoating:
front cross member complete and engine mounted:
turbo manifold started:
as of right now i have the rear end half mounted and should have it completely bolted in by the middle of the month. those are the major hurdles, the rest is all small stuff, but it is going to take a long time to get through it all.
here is where i started:
when i bought the ap1 drivetrain, it came complete with the rear end. the only things missing were the sub frame for the rear end and the ecu for the engine and some of the wiring to it. i'm planning on going with an aem ems anyway, so the ecu isn't a big deal, but i decided to sell the ap1 rear end and picked up an s14 rear end for 2/3'rds of what i sold the ap1 rear end for. i thought it would stand up to more abuse than the ap1 open diff anyway.
i already had a dh-racing billet tb so i figured i'd pop that on the new engine so i had to bore out the manifold.
here it was before i started cutting:
preliminary cutting:
some powdercoating:
front cross member complete and engine mounted:
turbo manifold started:
as of right now i have the rear end half mounted and should have it completely bolted in by the middle of the month. those are the major hurdles, the rest is all small stuff, but it is going to take a long time to get through it all.
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02-03-2009, 04:27 PM
#22
Honda-Tech Member
Re: weirtech's project RWD CRX
What are you planning for rear suspension? A few of us are working with the OEM Wagovan/CRV rear trailing arms to preserve some of the OEM-ness of the car. I know for the CRX, you'll need to shorten up the trailing arms, as the 4WD Civics and Integras (foreign markets) all have slightly different unibodys to accomodate this. A number of AWD Civics have been built (I know of 2 for sure), and they used modified trailing arms. I am using the Wagovan chassis, so the unibody is already configured for the longer arms.
Here's a couple threads that discuss this process for the EF chassis (also 1 for the DC, but rear trailing arm geometry is the same).
https://honda-tech.com/forums/hybrid-engine-swaps-18/matts-4wd-crx-project-2060180/
http://216.120.253.113/epictuning/ga....php?cat_id=41
https://honda-tech.com/forums/hybrid-engine-swaps-18/fully-built-awd-eg-reinforced-wagovan-tranny-gt28-40-a-2482958/
https://honda-tech.com/forums/hybrid-engine-swaps-18/hontec-rs-evo-2441462/
Here's a couple threads that discuss this process for the EF chassis (also 1 for the DC, but rear trailing arm geometry is the same).
https://honda-tech.com/forums/hybrid-engine-swaps-18/matts-4wd-crx-project-2060180/
http://216.120.253.113/epictuning/ga....php?cat_id=41
https://honda-tech.com/forums/hybrid-engine-swaps-18/fully-built-awd-eg-reinforced-wagovan-tranny-gt28-40-a-2482958/
https://honda-tech.com/forums/hybrid-engine-swaps-18/hontec-rs-evo-2441462/
Last edited by Jaker; 02-03-2009 at 04:38 PM.
02-03-2009, 05:04 PM
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Re: weirtech's project RWD CRX
What are you planning for rear suspension? A few of us are working with the OEM Wagovan/CRV rear trailing arms to preserve some of the OEM-ness of the car. I know for the CRX, you'll need to shorten up the trailing arms, as the 4WD Civics and Integras (foreign markets) all have slightly different unibodys to accomodate this. A number of AWD Civics have been built (I know of 2 for sure), and they used modified trailing arms. I am using the Wagovan chassis, so the unibody is already configured for the longer arms.
Here's a couple threads that discuss this process for the EF chassis (also 1 for the DC, but rear trailing arm geometry is the same).
https://honda-tech.com/forums/showthread.php?t=2060180
http://216.120.253.113/epictuning/ga....php?cat_id=41
https://honda-tech.com/forums/showthread.php?t=2482958
https://honda-tech.com/forums/showthread.php?t=2441462
Here's a couple threads that discuss this process for the EF chassis (also 1 for the DC, but rear trailing arm geometry is the same).
https://honda-tech.com/forums/showthread.php?t=2060180
http://216.120.253.113/epictuning/ga....php?cat_id=41
https://honda-tech.com/forums/showthread.php?t=2482958
https://honda-tech.com/forums/showthread.php?t=2441462
you can see the s14 rear end i'm using in the very first pic. here is a better shot:
i've briefly looked through those other projects, awd and rwd (mid engine)... and i gotta say, with the exception of the tranny/ds tunnel, my swap by comparison is no where near as involved with regards to making things fit properly. my engine and rear end swap is almost a direct bolt in affair. i don't have to extend any trailing arms or modify hub spindles or transmission housings, internals or anything like that. (which can lead to serious issues if replacement parts are needed down the road). i can bolt the engine in and out, and bolt the rear end in and out. all i have to do is some mild fabrication for the rear end to bolt it in and have a driveshaft made. other than the front subframe/engine cradle, all the other parts for this swap will be able to be bought as spares from any place you would normally find these parts... mind you, my shock assemblies will not be in the traditional locations in the rear end, but i hope to have pics of that up in the next week or two.