Sigma-galant.com

Will the 42lb/hr injectors be enough for around 15psi?

I under stand what your saying about just going 2.6 efi but that's by why I bought this car at all. This car will be turbo. And I don't really see the thrill in trying to beat a stock commodore v6 Thanks for those comp ratios but really need to know what comp I will get if I use my 2.0 block with ef...

Ignore the balance shaft question, sorted that out and ordered a kit today for $25 from work.

Really need to know about the head and compression issues though

Ahhh ok... is there any coating you can put on the stainless manifold to make it any better?
Will that cast manifold be any issue at all having the flange on a different angle?

Yeah sweet. I had a bit of a look at the us stations. Looks all good. Will prob buy one next pay

Ah cool. So that will 100% fit? It looks bulkier than the stock ones would there be any issues with brake booster or anything?

Also in regards to this i see they have some kits on ebay america to suit sigma, i asked about them and he said heres the manifold but it says starion. Do they sigmas over there run the 4g63 motor? I assume they have different manifolds to the astron no doubt. http://cgi.ebay.com/ebaymotors/ws/eBayI...

Hey guys,
I need a turbo manifold for my siggy, does anyone know anywhere that make them aftermarket like stealth does or did?
It seems he doesnt do them anymore, but need to get my hands on one.
Any help would be great,
Cheers
Geoff

Looks good mate, love the GE shape

Thanks guys, really need some more answers too if possible. Before i ask these questions i will insist i have been searching through the forums for the passed few hours in fact. Balance shaft elimination: Do all 4g52s have a balance shaft? I have seen some related to non balance shaft 4g52s and most...

Thanks guys, when i was driving it home yesterday it actually did make me want to just keep it original. But seriously... i cant have a slow car. The whole point of buying it was to do this. I will keep it 99% original looking, exterior and interior, i just want to put sigma turbo wheels or pepper p...

The very top bellhousing bolts were 130mm from centre of bolt to centre of bolt

Thanks, ill go measure them this arvo. Any idea on any of my other Q's?

Hey guys, Just bought my new project which is a tidy as GE siggy, 2.0, 57,000s k's on the clock, jap 5 sp etc etc. Wicked starting ground if you ask me. Basically the plan is to go EFI turbo. At first i was planning on just going the magna motor and get it freshened up and drop it in, but i picked t...

Very nice man, hope you see some good figures with that.

Did you custom make the individual coil setup or are EFI magnas like that? Cant say ive ever seen that on a similar setup before

Lol, you guys are funny. Thats actually my car. Pretty random. But it was not "serious" me and some mates bought it randomly off ebay for like $200 and just did some silly things to it to get some laughs. Yes im a commodore boy, and i consider my clubby fairly worthy. Its not hectic stocka...

Any one else?

Hahah, thats random, i actually went and looked at that car today and test drove it.
But still working on my GJ conversion as well and wanted to see some pics of the proper gardener mounts. Couldnt really get a good look when they were in the car

Hey guys,

Just wondering who has done this conversion before, and if theres any chance any one has any pics of the engine mounts they used?
Or if they bought the proper pat gardener kit, if you could please post up some pics of the mounts they use.

Cheers
Geoff

Awesome info thanks mate!!!

From what ive gathered/seen, just need to chop off the throttle body, weld up a plate where it was, cut off the other end, and put it there instead. And then move the thermostat to the front as well

Yeah its a mint idea, i still plan on doing it. My plans have been put back a bit further but still in the back of my mind.
Will be dropping the whole EFI motor in with stock ecu to start with, then get turbo setup happening down the track a bit.

Hmmmmm well if its seriously that low thats pretty damn low.... however i havnt got plans to use this car on the road, more of a track car/toy, as i cant afford 3 regos and insurances lol. I spose dropping the whole magna motor in would be an option, but what would need to be changed to convert to R...

Yeah thanks mate, would be handy to know the compression ratios.
I would like to stick with standard ECU if possible and try and tune between myself and a guy i know who tunes. Cause spending $1000 on a car thats worth about $500 doesnt really appeal to me at this stage... lol

Thanks mate, yeah it would be just a side project so wouldnt be in a hurry at all. Any idea on compression figures? As i plan to go turbo with it down the track, as low comp motor would be more suited to boost? Or would it be tooooooo low compression? Fuel pump shouldnt be an issue at all. Does any ...

Ahhh yeah, man honestly havnt touched it in over 6 months, but me and my mate that are doing it, have recently got pumped to get into it again and gonna start again next weekend. Hopefully get the mounts and everything in then gotta sort out the trans tunnell and wiring and tail shaft etc.

Thanks bud, ive actually been a member for a few years as a on/off poster but account must have got deleted. Ive had a few sigmas in the past, ive got one out the back we are attempting to put a buick V6 into, and i had a stocker GJ 2ltr and ive also had a GK 2.6 turbo. For aguments sake, lets say i...

Hey guys, interested in starting a new side project. Been thinking about converting a siggy which i havnt got yet, to EFI and then down the track turbo EFI. Would prob be looking at a GJ/GK sigma. Need to know basically, what will fit what? Will most likely buy a cheap donor Magna for the conversion...