i apoligize for the comment i made before and i got my measurements wrong.
VERY SORRY!!!!
the turbos are gcg built so i rang them up and and quoted the part numbers and they said they were old and wouldnt be able to track down 2 much about them
ive looked at a ruler and by goin off the standard ones i can say these figures are still a guess but more close to bieng the sizes i was trying 2 explain before
rear housing .63
rear wheel is around 10 to 15 mm bigger in total, so 5mm to 7.5mm from centre to end
front wheel is about 10mm bigger in total and same again, 5mm from centre 2 housing,
i really didnt think these sizes would increase the lag as it has,
compression is a healthy 150 dead even over all 6.
the best way for me 2 describe the way it drives is its really laggy in boost up till 9, 10 psi, then it starts taking off, but by the time it is mooving its on 5500, 6000 rpm, the turbos are making boost at 3500rpm 4000rpm but u cant feel the shit until 5500, 6000.
its like driving a s14 or s15 wiv the vct unplugged.. shit down low and then suddenly after a certian rev range off it goes.
i was inking maby it could be the computer, gone fully retarded and rich , coz its sucking some juice bad,
all help appreciated, sorry for comment b4 but he was bieng a smartass.