it didnt like youre email address so ill chuck it here as some other people might be iterested aswell

g'day paul,

the story with the diff is two plates are fitted in with springs applying equal pressure on either side, proving a break away pressue of appox 50 psi (lsd is about 75-85psi i think and standard open diffs are about 20-25 psi) so its a midway thing, but it only costs $250 to get fitted and has proven to last 3
rally seasons quite regularly, when it does die the diff acts open centre and costs $100 or $150 to make like brand new again, the guy that did it for me takes youre diff centre for approx. 10 days so you need
alternate for mean time. the only restrictions as far as the car goes is that it will fit all diffs except 2 he found he could do so far (i think charade and some other small thing) so h190 is no prob and other restriction is the car has to have less than 200hp (at
wheels i think it is) so it can deffinetly be done to youre diff. apparently there are a few guys around doing this conversion but the guy that did it for me is called "Tayell Automotive" in East Bentleigh Melbourne Ph: (03) 9579-5529 and John is the blokes
name

as far as driving charachteristics it basically acts like an LSD, as in both wheels will put power to the ground but when turning the outside wheel will be allowed to spin faster and not harm turning or scrub tyres, also im told it will not push you through a corner anything like a locked diff does when youre
going hard, though it will a little

this is all what ive deen told as ive had the
conversion done but havent got the h165 diff in my car as i got my diff last night and am feeling a little seedy today and its raining so i aint touching the car

youre car would go pretty nice with that a-15 with 170hp specially with a sprung load, do some mean doughies and launch pretty good too. unfortunatly the underside of my car would cop a fair belting if i dropped the suspension but yeah it would
look pretty mean

anyway good luck
see ya round,
Michael