Brake/Suspension Swap on 90 Civic HB, 4 Wheel Disc Brakes?

Hello all,

I have a 90 civic hb with disks in the front and drums in the back. I just bought a 89 integra with 4 wheel discs, and I'd like to do a swap.

Should I just change the brakes over, or should I replace the whole suspension system and the brakes?

If the civic has 9.5" brakes in front and so does the integra, do I gain anything by swapping them? Are the calipers bigger or something? Or would it be the brake booster?

I've read that the integra brakes are better thank civics. In fact I have seen alot of scca race civics (4th gen and crx's) with full integra brake/suspension swaps. Now of course they're probaly using 94+ integra brakes and suspension, but an 89's is probaly better than my civics.

If I do change the suspension over, do I have to change everything like a arms, and supports for the suspension, or do I utilize just the spring assembly and the civics a arms, supports, etc... Is there any benefit to changing over the integra's suspension system? Are the springs bigger or something?

Is there anything with the ecu that changes because of the new 4w disc brakes?

Any help is appreciated,

Thanks John