I am currently building a K1 Attack with MR2 as donor. Engine is Gen4 as it has to be from vehicle after 2000 to pass ADR emmissions requirements.
 
 
 
 
 
 
Attached pics shows the dreaded beam and torsion chassis test being executed by engineer. In the last pic you will recognise the sw20 rear suspension.
 
Please feel free to contact me with any questions or queries. 
 
 
 
 
 

Looks like an epic project!

Epic!

 Thanks Dylan
 
Here is a pic of the ST246  (running on stock toyota ecu with key transponder)  and the normal Mr2 gearshift linkage
 
 
 
 
Engine mounts are normal sw20 turbo mounts to chassis.

Awesome 

Yeah man, that is going to be cool!

Sweet project. Is that a brand new gen5 3sgte pictured?

Yes brand new shortblock, head and turbo. Injectors intake, sump and hardlines from Caldina engine i bought.

Thats coming along well looks like awesome car would be good to see it in action when finished :-)

 
Here is an example of a completed Attack. I can only hope mine will be as nice.