I am currently working on doing a WRX conversion to my 85 BRAT. i will need to get some custom work done to the car to get everything to bolt together properly. my goal with this build is to be able to use as many off the shelf parts as possible and to make around 300hp when done. i want to be as reliable as possible when done. the car will be driven on the streets as well as the occasional track day and quite a few twisty roads.
i have a few ideas that i am working with that require some custom fabrication work. the biggest is the engine x-member and front suspension. that is followed by the rear suspension.
i have a bunch of parts coming to convert the rear from the old torsion bar suspension to the coil over set up from the new 2012 wrx. the only problem there is that i wasnt able to get the sub frame/diff carrier with the rest of the parts. in searching, i found that the rear sub frame isnt too expinsive, but i have a feeling that it isnt a bolt on part for the BRAT chassis. i would need to get the sub frame and possibly the chassis modified to fit together. i would like to keep the same spacing and measurements as the stock impreza, which will most likely require widening the fenders (all part of my plan).
for the front, i still need to source nearly everything, x-member, steering rack, control arms, etc... the x-member would need to be modified to fit the narrower frame rails of the BRAT. i think that the chassis would also need so work to fit the rear mounts for the control arms as well.
while everything is apart and up in the air, it might also be a good time to open up the trans tunnel to fit the larger transmission from the WRX as well since the BRAT only had a tiny 4-speed trans.
is this something that IAG would be willing to look into?