i just picked up a daihatsu charade 1988 gtti turbo model 1litre efi i got it for a run around as is a 1litre with balls fairly worked for a small car and has a vf18 on it runnin 10psi but in the top end i feel it run out of puff the motors forged so i can run more but just didnt want to run diffrent setup b4 i kill the setup lol looking for something with a bit more puff up the top end but with the same flange as the vf18 cheers its worth a try cause it keeps up with my sti until about 120 then the rex pulls away would be wicked to see it with a bit more power cheers