2.8 DOHC Twin turbo

[blownarrow]

[kikinz24]

I kno about the pedal setup the cadillac engine uses the drive by wire. As for cluster I think I can get by that. When I turbod my friends 07 cobalt ls there was no tuning for it and once it hit 10 psi or 3/4 throttle it sent the car to engine power reduce mode. So we re pinned a ss ecu in it so I could use my hptuners on it. It kept throwing bcm codes and theft system so I just turned them off in the mil setup. And the car runs excellent now. I'm aware that both cars were the same type of car but the ecm didn't recognise the ls components and it seemed to still work. So that's the route I think (should) work.

for sure. im going to get some pics goin soon. today i tore the front suspension out of the car im in the process of doing a complete custom upgrade in suspension/braking setup. because stock fiero stuff SUX! based of a chevette lol so im doing a little expirament with some different cars parts. the motor is already unbolted jus still sitting in the car. but once i get the new parts ill load some pics

I believe that engine has the GM global bolt pattern for the tranny which maybe the same as that found in the ECOTEC. It should also have VVT from what I recall on intake only. You will be swapping more than just the PCM and BCM, try radio, gauges and accelerator pedal because all of that stuff is tied in together on the newer cars and there is no telling what else you may need to make the PCM happy which will throw torque management and varying degrees of limp mode at you if it's not seeing all the signals it expects.

Research the LS4 swap (fwd V8 )on the Fiero forum to see what kind of problems they had to address which may be even more with the SAAB platform. There is to my knowledge a system available for stand alone 3.6 DOHC motors outside of their OE environment but can't say the same for the smaller motor which originated in the Caddi CTS I believe around 2003.

[kikinz24]

for sure. im going to get some pics goin soon. today i tore the front suspension out of the car im in the process of doing a complete custom upgrade in suspension/braking setup. because stock fiero stuff SUX! based of a chevette lol so im doing a little expirament with some different cars parts. the motor is already unbolted jus still sitting in the car. but once i get the new parts ill load some pics

[pocket-rocket]

Good deal. Sounds cool. Just one thing to keep in mind while the build is going on....
























Pics or ban! j/k lol, but pics would rock.

[kikinz24]

well pump gota be switched anyhow and lines are no problem. i dnt care how long its guna take to fab anything. ive got a nice heated garage and in no rush to build it together. money isnt too big of a problem because i was going to fully build a different motor. so cost wise what i was going to spend on a build up basically covers the engine and parts im guna need. if it is a direct injection theres a guy on the fiero forums who jus swapped a new 2.0t out of a cobalt into his fiero im sure he can shoot me some info on that.

[pocket-rocket]

Direct injection would be sweet, but then you also have to swap out your fuel pump, and possibly lines as well. Maybe the big headache getting all of it and getting it working is why no one swaps them. I'm not knocking it, I think it's an interesting idea and would be a cool swap to see done but I won't be the one doing it unless I fall into a big pit of money some time soon.

[kikinz24]

i know the whole swap thing thru and thru i have done it before. im going to get a full harness pcm n bcm and motor. and hardwire in my cluster. so i can keep the stock cluster setup.


and i believe the turbo x is a direct injection. not the cadillac 05-07 as it stated its a MPFI setup. my belief is it uses normal injectors but i do need to find out.

[robertisaar]

direct injected motor isn't it?

[bszopi]

To get the full potential out of the engine, you also need to swap the PCM. The way cars are set up nowadays, swapping the PCM also means swapping the BCM. Then you are looking at what all is connected to the BCM, and of that, what is required to make it function properly. The PCM also controls the tranny, so there is another piece of the puzzle that needs to either be included in the swap, or figured out how to delete from the program.

The swap sounds like a great idea until you really look at everything that goes into it, to make it work properly.

[kikinz24]

yea i found this all out now lol. ok now my question is y arent guys on here swapping this engine in any cars if its as good as it sounds. hell the saab 9-3 turbox has a significant amount of power and from what i read has alot of potential from there

[bszopi]

http://60degreev6.com/content/28L_VV...Specifications

In case you need the specs for it. Its actually available in the Saab 9-3 as well.

[TiredGXP]

Links to info from the GM Powertrain site (mostly 2008 model year info except the dyno chart):

http://media.gm.com/us/powertrain/en/product_services/2009/HPT%20Library/HFV6/2009_28L_Turbo_LP9_english_280hp_Saab_Combi_n.pdf

http://media.gm.com/us/powertrain/en/product_services/2008/Whats%20New/HFV6/08i_LP9.doc

http://media.gm.com/us/powertrain/en/product_services/2008/Spec%20Sheet/HFV6/08i_LP9.xls

Gotta love a broad torque curve

[kikinz24]

yes so i was reading. like i was saying earlier i would like to keep my stock tranny. i personaly like it and hell it only has 60k miles on it and was owned by and old man who only took the car out for spring summer days lol. and ill say it shifts smoother than most stick shift cars today . the engine comes with all forged internals from the factory. so i know im safe there. im guna add boost . more than the turbox but nothing too extreme at least for the first setup. i need to read more on it. im going to join a saab forum and try and get info from them.

[TiredGXP]

Based off the LP9 built by Holden and used in the SAAB TurboX with the AF40/6 trannie?

89mm bore, 74.8mm stroke,
DOHC
VVT
SFI
Twin Turbo
280hp@5500
295 lb-ft@2000

Aluminum block and heads with forged crank and sintered rods