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So i have a 93 CS 9000 with an LPT. I understand that the cse and the Aero have a turbo with a high psi boost? How would i go about converting the lpt to the HPT? Will the conversion be all mechanical, or will i have to mess with the ECU? Is it worth attempting? Thanks Dan
 

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a 93 lpt will need an intercooler fitting, not a hard job just fiddley the rest is all ecu remapping

welcome to saabcentral :)
 

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Hi yzmxr68,

As boxman said, to obtain the equivalent of a HPT you need the intercooler to be fitted. Fiddly, but doable. The bit that box man didn't make terribly clear is that the turbos in the LPT and FPT are pretty much the same (Garret T25). What I would check first, though is whether you may get better results by upgrading what's there (i.e. doing the ECU remap to get equivalent boost of a FPT).

That way will probably be simpler, and less worrisome when it comes time to let the Insurance Company know that your car has now been modified.

Cheers


Kenneth
 

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Discussion Starter #4
How would i go about doing a re-amp? Please also note that i am not very electricaly inclined.
 

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yzmxr68 said:
How would i go about doing a re-amp? Please also note that i am not very electricaly inclined.
Mapping or remapping the ECU is a specialist area - you really need to talk to a specialist who will provide you with the relevant options and an idea of cost. It's not an area that I'd want to play with on my own, as I really don't know enough about what all the possible permetations do and how they will affect driveability.

Sorry for lack of info but I'm sure some one else will fill in what i've missed


Kenneth
 

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all you need to do to get an FPT from your LPT is get a compatible FPT ECU and install that. an intercooler would be very helpful at the same time. This way you are not modifying the car, you are upgrading it to one that was available that year as weel, and in Australia here, that doesnt impact on your insurance, just tell them you changed the variant of model.
 

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here in the uk we cant do that cus the 2.0 was a lpt and the 2.3 was a fpt so there are no trionic 2.0 fpt ecus to play with :(
 

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interesting, trionic was launched in MY 93 in the UK but the 2.0 carlsson had LH2.2 not the LH 2.4.2 so the di/apc wont talk to it
 

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Discussion Starter #11
Im an idiot i dont know why i said that my 9000 was a 93, its a '95, does that change anything? I have no idea what you guys are talkin about
 

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yzmxr68 said:
Im an idiot i dont know why i said that my 9000 was a 93, its a '95, does that change anything? I have no idea what you guys are talkin about
If I'm not mistaken then your car will have an intercooler, why not check, look at the turbo plumbing route does a fat pipe appear to go to infront of the radiator and out the otherside and connect to an aluminium pipe to the throttle body?

As you have an lpt not only does the ECU need a re-write but the APC solenoid will need changing too, this is the bit that governs peak boost if i recall correctly. [I've left myself open to looking like a complete turbomuppet there now :lol: ]
 

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Actually, if it does have an intercooler, then an APC solenoid will need installing and then you can swap with any FPT (trionic 5 - ie. '94 on from 9000's) ecu.. if you have a 2.3 LPT that is. If it has an APC solenoid, then an Intercooler will be beneficial... not needed but you would really want one, and again, swap the ecu for a FPT ecu
 

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boxman said:
here in the uk we cant do that cus the 2.0 was a lpt and the 2.3 was a fpt so there are no trionic 2.0 fpt ecus to play with :(
In Italy we had 2.0 FPT, in both 9000 nd NG 900, with 185hp stock. It may be hard to find an Italian ECU in the UK, but it means that the original Saab mapping for a 2.0 FPT must exist somewhere.
 
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Grentarc posted:

trionic was only in the Aero's in '93
Sorry to urinate on your biscuit, but my 1993 non Aero 2.3 had trionic.

My Haynes manual also denotes a 2.0 FPT 185hp - the B204L? Ran from 1994 so if the car is a Trionic, wouldn't that ECU change the power of an LPT?
 

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perhaps cus he lives in the uk and we did get trionic across the bourd in 93, may be the states got it a year later as with the 9-3
 

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The 9000 up the garden is a '93 [very late 93] that has trionic, but it is classed as a MY94, so if the aero possibly had trionic from MY93 which would have been available from late '92, perhaps?

Though we're wondering way off the topic that I have a particular interest in :nono; ;)
 

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yep model years run from september to september, this is when the factorys close for the summer vacation so when they return it a new model year, make sum sence i suppose :roll:


it is also worth noteing that the 94 > ecu will not work in a 93 car and vicer vercer, cus the cranks sensors are differant so are wired differantly
 
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