Sigma-galant.com

Thanks Superscan i have a oil filter (fairly big one off a rotor ) so is 80 psi idle and 100 psi driving ok oil pressure ? never had an engine run that higher pressure before

Hi all i have just fitted a turbo setup to my scorp and while i have the timing cover off for the balance shaft removal i put a brand new magna oil pump in it and im wondering if i need to be worried about the REALLY high oil pressure its about 80 psi at idle and at least 100 psi at revs (gauge only...

in old cars i like to use the simple method of a wire from each side of the coil to a discreet switch when the switch is open nothing happens but flick the switch and the coil shorts out ( no damage though) but the car will crank but not start it saved my mates car twice the first time they flattene...

UPDATE :) Still has hone marks in the block and NO piston slap :) http://i336.photobucket.com/albums/n354/havocgtr/1981%20Mitsubishi%20scorpion/1000211_605448172819596_1549169743_n.jpg Head installed http://i336.photobucket.com/albums/n354/havocgtr/1981%20Mitsubishi%20scorpion/20130727_132355600x800...

just measured apparently they are +40

i have no idea they came of a rwd cosmo

i got my grubby little hands on a set of 18x7 1/2 inch advanti giovanna rims

Does anyone have any idea what is the max size rims that will fit under a GJ scorp guards?????

2.6 draw through using a T04b .60 front and .70 rear off of one of the holden 6cyl turbo kits rebuilt by Ray Halls in Cairns fed by either the 175cd strommy or a 45mm dcoe webber with a rebuilt M4 head and an arp head stud kit

Thanks he had a REALLY bad pic posted so i went to look at it figuring maybe it would be good for a skid/drag car now im starting to think i may just have to put it on the road

Well i used to own a GK sigma with a turbo a few year ago but sadly she was taken from me by the evil RED CANCER (rust) but by a complete stroke of dumb luck (facebook at just the right time to see it posted in a local buy and sell page) i have found this new toy to install the turbo gear into for s...

does anyone know if there was ever a single DCOE manifold made for the astron II 4G54?
and if so where i could find one

ok my question is how much flow should my electric fuel pump be flowing (Lpm free flow) to suit a 4g54 astron 2 head CD175 carb and 8-10 psi boost i have had a ploblem for awhile where my engine will not rev past 4500-5000rpm have tred switching out everything other than the bottem end and the pump ...

Hi all need a little help here i have come across a strange problem with my 4g54t if the car sits for more than about 1 1/2 - 2 weeks i have no oil pressure when i start the car the only way to get the pressure back is to remove the connection for the oil pressure guage and squirt some oil in the ho...

as far as i know it only illegal to drive a unregistered car not park one if they ask how your got it there tell them you were towing it and the trailer got a flat. in QLD you have about 21 days after your rego runs out to pay it up again and MOST of the time they wont bother charging you inside tha...

just wondering what you guys would recommend running on a high comp(9-9.5:1) turbo astron only running 10psi im currently using Denso W25EBR (a 3 electrode rotary plug) looking to change plugs (think the current ones may be causeing some revving issuse's im having

This may have been covered in another post already and sorry if it has but does anyone know how to calculate the compression ratio of an engine on boost if the static ratio is known?

Edited
Found a calculator online
http://www.rbracing-rsr.com/compression.htm

I make my own flywheels at home I have a hobby lathe and mill

Ive seen pics of your lathe if thats your idea of a hobbey lathe i want to see what you consider a proffessional one LOL

Ok nevermind i worked out what is is and freed it up but its not the problem The problem is that when im on boost and only above about 2/3 throttle the car starts to cough and surge but only when the foot is suddenly planted if i slowley increase the throttle its more or less fine any ideas i know i...

anyone know what this bit is for i know its supposed to slide out when the throttle opens (well it does on the spare carb and it used to but no longer) kinda curiuos if its something that would contribute to some dieing out problems i have been having at WOT?? http://i336.photobucket.com/albums/n354...

you maybe thinking 2L and 2.6L i mean 2.6L astron 1 & 2

just wondering is there any difference between astron 1 & 2 cranks rods or blocks i know the pistons are different just wondering about the rest for building a turbo bottem end

Oh crap i was soooooo hopeing i didnt have to change the steering shaft :(:(:(:(:(

well as i have just spent a few hours finding out they dont swap straight over well at least not the 2 that i have the power steering box apears to be longer than the manual one as in the steering collum is about 2-3 inces to short to reach the spline of the box so apart from changing the steering c...

Anyone have any idea?

Just wondering if a manual steering box off a 84 GL scorp will fit to replace a power steering box in a 84 GK sigma ??????

Thx HEAPS for that mate makes it easy for me got a weber with all the same specs only differance is its got 30mm ckokes and 145 main jets and i kinda worked out the chokes were to small all by myself lol

Does anyone have any idea at all as to what setting to use (chokes/jets etc)

Ahhh cool might have to start changing stuff in the carb then it was on a 2L turbo running fine but was put straight on a 2.6L turbo so i'm guessing that may be what is limiting my revs to 4500rpm lol

hey how did you go getting thse closer pics and carby info???