What ECU are you intending to run?

I like what you are doing. It is a smart mod for the MR2. Just need to transfer some of the suspension system over and you will be hard to catch!
 

welcome to Honda family
I have honda in MR2 as well

nuk1ear
gotta be straight up here, but why bother with the F20 when the K series engines are known to be cheaper and easily get more power than an F series? Also, theyre already east-west mounted engines, the swap would be potentially easier too?

K Series motors spin in the wrong direction and would end up producing 5 reverse gears and 1 forward.

Thanks for all the ecouragement guys, I know there are probably better routes to go, but most if not all of these routes have been pretty well travelled. -- I want to be unique.

Money wise -- I got the F20c cheap from japan, if I was to do a K-series swap I would require an integra gearbox aswell. All the mounts would be custom, custom shifter cables. etc. With the F20c I can bolt it up to the existing box and fab 2 mounts... thats pretty much it (apart from plumbing and wiring and the custom flywheel). The extra couple of hundred RPM limit appeals to me too.

I'm hoping the engine package will be quite a bit lighter and I'm not running a spare, aircon, or any trim in the boot or frunk. The 1000kg is probably a bit optimistic, but gotta have an aim haha.

Waiwong I bet your spyder is quick, turbo k24, wow

tcran
Thanks for all the ecouragement guys, I know there are probably better routes to go, but most if not all of these routes have been pretty well travelled. -- I want to be unique.

Money wise -- I got the F20c cheap from japan, if I was to do a K-series swap I would require an integra gearbox aswell. All the mounts would be custom, custom shifter cables. etc. With the F20c I can bolt it up to the existing box and fab 2 mounts... thats pretty much it (apart from plumbing and wiring and the custom flywheel). The extra couple of hundred RPM limit appeals to me too.

I'm hoping the engine package will be quite a bit lighter and I'm not running a spare, aircon, or any trim in the boot or frunk. The 1000kg is probably a bit optimistic, but gotta have an aim haha.

Waiwong I bet your spyder is quick, turbo k24, wow

fair enough, if you can get it under 1150kg i would be impressed! after fitting my V6 and E153 i scrapped a lot of ancillaries like aircon, cruise control, fitted carbon boot, removed sterio, lightweight flywheel, fitted lightweight muffler (9kg) and the weight of the car is still around the 1220kg mark. this i believe is because of my large wheels/tyres and added suspension parts (strut braces etc.)
 

1000kg is possible. The S54 and the alloy engine will help a lot.
Alloy calipers/two piece rotors/16" wheels/alloy coil overs/trd sway-bars will also help a lot.
Ditch the power steering, abs(if there)and remove every nut and bolt not used and replace whatever is not structural with alloy bolts(can be found in Victoria)..