so i go this given to me today. what do you guys think? it doesnt have a wastegate so i would have to sort something out.

im thinking custom manifold, and exhaust. and just running the piping to the throttle body. only running 2 or 3 psi. basic system
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs420.snc3/25278_409789527353_725377353_5106422_3508754_n.jpg
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs440.snc3/25278_409789532353_725377353_5106423_8385490_n.jpg

To be honest using anything but a Sigma turbo manifold and a turbo that shares the same flange (T3? T4?) is a waste of time and money.

'Custom manifolds' aren't cheap. Factor in the cost of a new external wastegate, complete set of oil feed and drain lines, plus your relevant plumbing for inlet and exhaust and you've already racked up a hefty bill, particularly if you can't do it yourself.

Then you get to the fun part of finding a person to fit and tune an aftermarket ECU, which can get VERY expensive, particularly if they don't want to work on it.

After you've got it all running you then have to put up with the other parts on your car, which are probably around/over 200,000km old, dying horrible deaths as they have the added torque put through them.

If you're only going to run 2-3psi, you won't even feel that kind of boost, to be honest you can barely feel 6psi really.

Oh and you might want to have that turbo rebuilt, it looks as old as I am.

the work will be done by myself and a mate (mechanic). he seemed to think the stock ecu would be fine for this set up. and yes the turbo will be rebuilt, it does look pretty old.

Stock ECU might run the setup, but why would you use it when it won't add fuel where it's needed? It wont read manifold pressure so it can't account for increased density of air being pushed in, admittedly it isn't much if you want to run 3psi, but if you're going to run a turbo, at least make your money go further by doubling that boost. I really can't stress this enough about how disappointing 3psi will be.

If your car is already injected then you should be able to get away with just running a raising rate fuel reg and retard the timing for up to abut 6-7psi but don't expect it to be ultra smooth.

This has been done with a few 2nd gens that I know of.

http://cgi.ebay.com.au/Mitsubishi-Sigma-turbo-manifold-suit-astron-eng_W0QQitemZ250605493165QQcmdZViewItemQQptZAU_Car _Parts_Accessories?hash=item3a59405bad

so if i bought this it would be worth spending the money then?

Yeah it would, cheap as ****.

Run 6-7psi, shouldn't need to intercool it unless you were really keen, if in doubt water inject it. Run a piggyback ECU with provision for a MAP sensor.

When I was pricing things up for my old second gen before it shit itself and I fixed + sold it, I reckon I could have got away with a turbo install for under 2k.

I'm going to bud in it after work. Where would I find a piggyback ecu?

Ebay. for 3psi your better of hiring an orphaned african kid to blow air down your intake at WOT. Same effect. at least pump 8psi in there, if it goes bang who cares, not like 4cyl magna motors are a rare breed.

i won the turbo, pretty stoked.

oh and tuffy, your right about the motors. i have a spare as it is, and a spare manual gbox. im keen to run a bit of boost through it now

i won the turbo, pretty stoked.

oh and tuffy, your right about the motors. i have a spare as it is, and a spare manual gbox. im keen to run a bit of boost through it now

That's the spirit!

Awesome! keep us updated :D

ok so i got the turbo in the mail today. and the bloody thing dont fit :noway:

so in this first image iv put the manifold on and placed the turbo on the angle it would be if it was on the manifold. i had to remove the thermo fan. but if i put the turbo on the manifold this way, it fowls on a metal plate thats attached to the engine mount (i think its the oil sender shield?) if i remove this the turbo will probably fit. but even if it does fit there will be no room for me to get my air pipes on there.
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs510.snc3/26809_414058987353_725377353_5216811_1276917_n.jpg



ok, so now in the second image. iv spun the turbo by 180 degrees, but as you can see it fowls up against the radiator and due to the angle of the mount, i couldnt even get it on the mount properly.
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs490.snc3/26809_414058992353_725377353_5216812_2975525_n.jpg

so what do you guys think i should do? iv got couple ideas... maybe i could get the mount shifted up slightly on the manifold? or maybe rotate the mount by 90 degrees so that the turbo sits vertically rather than horizontally? or maybe just get a whole new manifold? or maybe ill just ditch the radiator lol
if you can think off any cost effective solutions that would be great, then i can spend the money elsewhere in the system.

one more thing, i noticed the manifold does not have the provision for the o2 sensor (didnt even think about this before). will this be an issue?

Good ol log manifolds.

Make sure you've got the oil output pointing downward or you're going to be in a whole world of shit lol

O2 sensor is just a threaded bung welded into the exhaust piping, easy for an exhaust shop to fit.

Have a look at my profile pic I think its still my 2.6 turbo setup and I can email you more pics when I am back in Perth of my setup.

so we have have come up with this idea of getting a bracket made up to change where the turbo bolts to, changing the angle and height that it sits. (see image below) the radiator has been removed in the image.
http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs490.ash1/26809_414098927353_725377353_5217278_1127082_n.jpg
this should give me enough clearance with the radiator. and enough room for air pipes, oil pipes etc.



i will look into getting a more professional manifold made up. whatever i end up doing i dont think i will be able to fit the thermo fan. will this be an issue? will the car over heat at idle ect?


Have a look at my profile pic I think its still my 2.6 turbo setup and I can email you more pics when I am back in Perth of my setup.

had a look, was a bit hard to see. if you can send me some that would be great thanks. :)

Yeah dude you need at least 1 thermo fan, Thats a MUST.
Why dont you use a sigma turbo manifold? That manifold looks like you are going to do your head in trying to get it to fit, only to change it down the track, Why not just get a proper manifold made up now?

That turbo, on full song, will throw out a lot of heat. Sitting where it is it will cook your radiator and bonnet paint. That manifold might work on a North-South engine like a Sigma, but its no good for a front wheel drive car. What is the source of the manifold, what car was it designed for?

Came from a sigma. This is the firt time iv done work with a turbo so there is a lot of unknowns still there.
Would it be a better option for me to mount it closer to the sump?

generally you will have to mount it where it fits then work out how to plumb it in

Down low with a custom manifold will be best as there will be room down there. As close to the block as you can get it. then some simple Y pipes straight from the head down to the stop of the exhaust housing. As stated make sure the oil return line is higher then the sump and also facing as close to straight down as possible.

does anyone have a picture of an actualy sigma turbo manifold? or some other type of manifold that has been successfully fitted to a magna? iv had a look for a sigma turbo manifold but since i dont really know what they look like im not sure that iv found one

Sigma turbo manifolds do pop up on ebay but are getting very very rare to find these days. GL with the build! I'm not to sure on the size of your turbo but I was running a GT28-60R and it needed 3" all the way through even turbo dump needs to be 3"

That thing will melt the thermo fan!

Do you have aircon? maybe you can remove the condensor and have the radiator there instead. Or move it even more forward and try find some longer radiator hoses.

Hmm. Heat shielding? I'm almost thinking of putting this in the too hard basket now
I'm not sacrificing the comfort of an air con.

Magna with a Sigma Turbo manifold. Plenty of room Too easy

http://img295.imageshack.us/img295/3769/magnaturbo1.jpg (http://img295.imageshack.us/i/magnaturbo1.jpg/)

Uploaded with ImageShack.us (http://imageshack.us)

bet you have been temted to move the radiator forward 3 inchesand i love to see that done to a first gen

Magna with a Sigma Turbo manifold. Plenty of room Too easy

http://img295.imageshack.us/img295/3769/magnaturbo1.jpg (http://img295.imageshack.us/i/magnaturbo1.jpg/)

Uploaded with ImageShack.us (http://imageshack.us)

that looks pretty neat. you woulndt have a pic of just the manifold would you. it looks like im gunna have to get something made.


bet you have been temted to move the radiator forward 3 inchesand i love to see that done to a first gen

i considered removing the air conditioner and putting my radiator forward but i decided since it will be my daily driver i cant go without the air con.

I think contact AR55 here on the forums, pretty sure he PM me ages ago knows a guy who can make turbo manifolds

2 ways to do this.

1. Starion manifold from the states, $50 a pop, bout the same price for shipping, bolts onto the engine guaranteed.
With this as it's top mount, depending on size of turbo, you need to bump the bonnet to fit as the clearance just misses it due to slopped nose of the Gen 1s.
Radiator due to how far out the manifold and turbo stick out, as can be seen i the above image, you need a slimmer rad.
That radiator if I'm not mistaken is from a v6 galant or equivalent, same length dimesion, mounting points, you will need 2 new top brackets and to get a slim line thermo fan.
routing pipe work whtever is fine, ecu is fine for 5psi max, otherwise wire in a piggy back as was mentioned earlier for a bit more boost, but no more than 8 unless you do some engine work.


2. use a carby manifold from gen 1 or 2 and make an adaptor plate for a low mount turbo setup.
you will still need a slim line thermo fan, unless you run the TM radiator fans or move another to the front in a blow thru fashion.
Rest is same as above.

Did about 4 months of research on turbo'ing the astron before I found my Sirius motor, so I know the above will work.

2 ways to do this.

1. Starion manifold from the states, $50 a pop, bout the same price for shipping, bolts onto the engine guaranteed.
With this as it's top mount, depending on size of turbo, you need to bump the bonnet to fit as the clearance just misses it due to slopped nose of the Gen 1s.
Radiator due to how far out the manifold and turbo stick out, as can be seen i the above image, you need a slimmer rad.
That radiator if I'm not mistaken is from a v6 galant or equivalent, same length dimesion, mounting points, you will need 2 new top brackets and to get a slim line thermo fan.
routing pipe work whtever is fine, ecu is fine for 5psi max, otherwise wire in a piggy back as was mentioned earlier for a bit more boost, but no more than 8 unless you do some engine work.


2. use a carby manifold from gen 1 or 2 and make an adaptor plate for a low mount turbo setup.
you will still need a slim line thermo fan, unless you run the TM radiator fans or move another to the front in a blow thru fashion.
Rest is same as above.

Did about 4 months of research on turbo'ing the astron before I found my Sirius motor, so I know the above will work.

thanks mate, best adive iv had yet.

Starion manifold from the states, $50 a pop, bout the same price for shipping, bolts onto the engine guaranteed. where will i find one of these, iv checked ebay and google, and found one for $299

couple of questions

fuel system if i run bigger injectors and an aftermarket fpr will the be sufficient?
exhaust 86_elite stated above that he needed a 3inch exhaust. do you think i will need to go this big? will i be able to run the stock exhaust temporarily if i only put through 5psi to start with?

ps. i will be running more than 5 psi, but i want to have the car on the road by october for MMX even if the car isnt running the way i want it. and if that means running less boost i will.

also does anybody know anything about an lsd for these cars? iv never heard of one but im going to look into it.

not sure on a lsd for a 1st gen myself either, i know the box was used in so many cars, including a few hyundais and some ftos, so theres quite a range with km210s so something might be somewhere.
do not expect it to run remotely decent on the stock ecu, first gen ecus are rubbish can take take sweet **** all in the way of change, to the point it barly ran with a stock TR head on my car (tn injection setup) had to swap the cam to the tn cam to get it to work properly. im guessing the injectors might be ok for very low boost, yet no good for high levels.
realisticaly your better off getting a 4g63 with loom and ecu,make some intake pipeing depeding on the motor you get. small modification and u can use a stock exhaust from about half way along the front pipe back, yet idealy you would want 2.75 minimum. then modify the passengerside engine mount, wire it up and away you go.

yet yeah if you realy want to goto an astron turbo it will cost you more in the long run and not make anywhere near the power u get from a 4g63 yet you will need as a minimum
decent manifold (putting right angles and adapters are a stupid idea and will make you lose heaps of power) a decent turbo (ebay china ones fail quite often)
injectors
exhuast modifications
intercooler and piping
and atleast a safc to control fueling
do not push much boost into the motor as astrons are crap and will break easily, ive been through heaps of these motors and thats without a turbo

do not push much boost into the motor as astrons are crap and will break easily, ive been through heaps of these motors and thats without a turbo
Coming from some who actually has experience in turboing one i can tell you if you have a decent head gasket and late model head it will be tuff as nails. They love boost too look at the boys in the states with the turbo starions and aus sigmas they can pull some decent figures too

As for lsds google lsd km210 there's a bit of info out there about it

what do you define by decent figures? i have seen a sigma get turbo'd with only 16g spent on it, gt35, externaly gated, custom exhuast and manifold, tr injection setup with modified plenium and bigger injectors, aftermarket ecu, cam, late model head, better headgasket. tuner cant get more than about 165kw at the wheels from it, (c4 auto, r31 LSD) uses a s15 radiator. extreamly disapointing, when you compare what u can get with that turbo and half the work on your dohc 2l's (4g63, sr20 ect) and even a few 2.0L sohcs like the 4g63. i know the displacments there, yet in my experience with them the results arnt there. interested in your experience with them and what figures you get.

also as for how tuff they are, also havnt seen much to show that are anywhere near as good as some newer cheaper options.

no offence 1stgenrevisited, but look at mad lante's join date and post count. thats a clear indication he has experience with magnas. you may have the experience, but from where im sitting, im going to take his advice before yours. plus iv been around long enough myself to know this guy does know his stuff.

no offence taken, just trying to save you money and help you have a better car that can be achieved with the astron, just giving my advice not trying to override someone elses.
and fwiw i know mad lante knows a fair bit about these old cars as he was around when i was on here many years ago, cant rember the account name though. yet back in the days of tmsered (brendon) before turbo charade was banned, and when webbers were only just being done, and it seemed like it was stupidly difficult to get a webber on an auto. soggs saw the light back then and built the magna how it was ment to be. then i went off and played with real cars and real motors for a few years and have came back to these as one landed in my hand rather cheaply.
post count means sfa for what info someone acutaly has

no offence 1stgenrevisited, but look at mad lante's join date and post count. thats a clear indication he has experience with magnas. you may have the experience, but from where im sitting, im going to take his advice before yours. plus iv been around long enough myself to know this guy does know his stuff.

No offence to mad lante, yet post counts and join dates are nothing.

Some people may leave a forum for years and return with a new username, with years of experience and a dozen custom built cars under their belt. Others may own the sort of boat anchors in question.

What you can be sure of is, both of the above have now posted in this thread :P.

Given the issues I'm having with Sirius motors, prob would have been just as easy to turbo the Astron.

But when have I ever done anything the easy way.

Given the issues I'm having with Sirius motors, prob would have been just as easy to turbo the Astron.

But when have I ever done anything the easy way.

Dont make me come to your house fool, you are not having any issues as far as I can tell bar an oil leak.

no offence taken, just trying to save you money and help you have a better car that can be achieved with the astron, just giving my advice not trying to override someone elses.
and fwiw i know mad lante knows a fair bit about these old cars as he was around when i was on here many years ago, cant rember the account name though. yet back in the days of tmsered (brendon) before turbo charade was banned, and when webbers were only just being done, and it seemed like it was stupidly difficult to get a webber on an auto. soggs saw the light back then and built the magna how it was ment to be. then i went off and played with real cars and real motors for a few years and have came back to these as one landed in my hand rather cheaply.
post count means sfa for what info someone acutaly has

alright mate, welcome back, been around before my time then. good to hear you maybe able to give some great info to the forums, as for saving money, well my recent trip overseas has changed my views on money. im no longer going ahead with the turbo, at least not for now anyway. im going to buy myself a house and head back overseas. ill garage the magna and get it out in a few years time when im ready to settle down.

as for post counts, they may not give you a tru indication of the accuracy of the the information, but the way i see it, someone with a high post count is more likely to be giving me good advice then a newbie. plus iv been around long enough now to know in most cases who gives good advice and who really doesnt know what their on about.

ah well thats because yours isnt tunned yet, wait till its done and then you will be singing a different tune lol
@astron boy

wow this is a blast from the past! lol

having written a post as the site went down i thought id finish it

heres a mate of mines thread on sg running 170Kwatw @ 10psi - http://www.sigma-galant.com/viewtopic.php?f=48&t=3374
http://www.sigma-galant.com/viewtopic.php?f=30&t=4664&p=38422&hilit=dyno#p38422
the youtube for billsys dyno http://www.youtube.com/watch?v=h-Su1i3vBR8&feature=related
bit more work but 198rwkw on 17psi -http://www.sigma-galant.com/viewtopic.php?f=46&t=4#p24060

but yeh there probably is newer/better options out there ie vr4/evo front cut but chances are youll be due for a rebuild down that track anyway, but either option is easy or half cheap
myself and another mate have built a turbo sigma basharound/track car, was done on the cheap and so far the only issues weve ran in to is a fked head, radiator and *** oil leaks and power steer leaks