Hi need help i have just got a s13 silva :::)?

hello i need help ive just got a s13 1990 silvia manual non turbo its stock 1.8 ........my bro has a 1988 honda prelude manual non turbo its also stock arpart from an airintake well wen i got it my bro took it for a drive and was like its not that fast not like my mine is so much faster so i need help with wat car will be fast in a drag from take off ?????/ thanx so much p.s we are not going to race or anything so dont gt mad saying im a head ??? well thanx anyway