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NG900 & OG9-3 Performance, Mods & Tuning Covers Tuning & Performance modifications for the NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible

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  #1  
Old 15th February 2006
Scoobycity Scoobycity is offline
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Default LPT to HOT

Hi guys n gals, hope you can help me out a bit here as I have to admit I know nothing about Saab's.

I'm confident at re-mapping and re-flashing Imprezas so a friend of mine has asked me to see how easy it would be to get his MY2000 LPT 9-3 convertible up to the same performace as the HOT.

I've spoken to friends in the trade and they all tell me they are mechanically almost identical and its just a matter of reflashing the ECU. As a result they're all trying to sell me (or rather my mate) thier reflash for 399-499. But I was hoping to find the software to do it for him myself. Can anyone point me in the right direction here?

Many thanks.

DannyBoy
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  #2  
Old 15th February 2006
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mike saunders mike saunders is offline
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Welcome...The High Output Turbo version of the 2000-2002 9-3 came with a Mitsubishi TD04HL-15T turbo, the same unit used in the Viggen.

Your car probably has a Garrett GT17, but if it actually has the Mitsu unit, then, yes, you'll either need to reflash the ECU (tougher than it sounds on a Trionic 7 car) or find a suitable ECU at a junkyard....
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  #3  
Old 15th February 2006
CO-Saab CO-Saab is offline
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Quote:
Originally Posted by Scoobycity
Hi guys n gals, hope you can help me out a bit here as I have to admit I know nothing about Saab's.

I'm confident at re-mapping and re-flashing Imprezas so a friend of mine has asked me to see how easy it would be to get his MY2000 LPT 9-3 convertible up to the same performace as the HOT.

I've spoken to friends in the trade and they all tell me they are mechanically almost identical and its just a matter of reflashing the ECU. As a result they're all trying to sell me (or rather my mate) thier reflash for 399-499. But I was hoping to find the software to do it for him myself. Can anyone point me in the right direction here?

DannyBoy
Skip that idea. If he wants more fun than that have him buy a Stage II ECU from one of the tuners. (SQR, Matun, Nordic) and the accompaniing hardward (Cat back exhaust and BPC vavle(?) ) This should be good for 230 HP and 350 Nm TQ. Same price range, about 40 HP more.
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  #4  
Old 15th February 2006
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stromer stromer is offline
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Yeah, you are missing the turbo of the HOT, so you're somewhat limited. Go for a nice Stage II as CO-Saab said. This way, you'll have lagless driving as well!
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  #5  
Old 15th February 2006
Scoobycity Scoobycity is offline
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Thanks for the input guys, didn't realise they used different turbos. I was mis-informed.

Is there no open source software available to re-map these then? Don't really want to pay a tuner when I could do it myself and end up with a better results (bespoke - not just off the shelf).
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  #6  
Old 15th February 2006
CO-Saab CO-Saab is offline
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Quote:
Originally Posted by Scoobycity
Thanks for the input guys, didn't realise they used different turbos. I was mis-informed.

Is there no open source software available to re-map these then? Don't really want to pay a tuner when I could do it myself and end up with a better results (bespoke - not just off the shelf).
If you get it figured out, you'd be the first. Otherwise I think the tuners have a pretty good idea what the hardware limits are.
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  #7  
Old 15th February 2006
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stromer stromer is offline
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Trionis is immensely more complicated that "other" engine management systems. When tuned properly, it makes a standalone redundant.
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  #8  
Old 15th February 2006
Scoobycity Scoobycity is offline
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Quote:
Originally Posted by stromer
Trionis is immensely more complicated that "other" engine management systems.
Thats what they say about Scooby's

You have a point though. Its taken years to learn what works and what doesn't on impreza's I guess the same can be said for any car. Probably best left to those in the know.

What about a small increase in boost with a MBC?
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  #9  
Old 15th February 2006
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stromer stromer is offline
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You'll find lots of info on this mbc talk. A traditional mbc will not work on a t7 because it sends the car into limp home mode. You can use a sequential manual boost control along with the original factory controller to raise boost slightly. People have had mixed results. Best to allow a reputable tuner to do the boost raising with a ecu tune.
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  #10  
Old 15th February 2006
brewtide brewtide is offline
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Quote:
Originally Posted by Scoobycity
Thats what they say about Scooby's

You have a point though. Its taken years to learn what works and what doesn't on impreza's I guess the same can be said for any car. Probably best left to those in the know.

What about a small increase in boost with a MBC?
2000+ 9-3's (and 99 viggens and all 9-5s...) run on T7 system. Cannot up presure w/ an MBC, apparently CEL's all around.

You can install one before the BPC selenoid (face engine, on left handside of grill-area - 3 hoses). This is an SMBC (series...) -- Negates the 1 & 2 gear boost limits and apparently allows for quicker spoolup... It'll FEEL faster and may be a bit, as you're allowed max boost in 1 & 2nd, unlike currently, which is around 60% boost... People HAVE reported higher PSI's from T7's I believe, but it's an act of *slowly* turning boost up over a longer period of time... Unsure if it's weeks or months...

best of luck,
bny
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  #11  
Old 16th February 2006
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bkrell bkrell is offline
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If you're in the UK, check out www.partsforsaabs.com for BSR or nottingham saab for Nordic. The GT 17 is a nice lagless turbo w/ enough power behind it. No high end wallop, but great for stoplight derbies. BSR does actually sell the PPC system where you "reflash" your existing ECU if that's what you're comfy with. I have absolutely no experience with it (although, hmmm, I have a T7 car now!) so I don't know much about it.

I think Mike knows a little about it.
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