LPT to HOT

[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?

Many thanks.

DannyBoy

[mike saunders]

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....

[CO-Saab]

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.

[stromer]

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!

[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).

[CO-Saab]

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.

[stromer]

Trionis is immensely more complicated that "other" engine management systems. When tuned properly, it makes a standalone redundant.

[Scoobycity]

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?

[stromer]

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.

[brewtide]

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

[bkrell]

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.