SQR Stage 4

[GRD]

I installed the SQR Stage 4 yesterday. This setup really turns the AREO into a high powered sports sedan. I was really impressed after the programming runs. I blew my new BOV within 30 minutes. You could hear it leaking and then PPPFFFSSSST. No more boost above 15psi. I put the original one back in and things are fine, other than hearing it leaking.

SQR really does a good job with their programming. Knowing they build Saab motorsport racing motors gave me confidence. The car really flies. Amazing performance.

Ordering a better BOV, then to the dyno to see how much power the setup is making.

Fun sleeper sedan.

[pieceofsaab]

where'd you get this kit? Got a link?

[BillJ]

Originally Posted by GRD

I blew my new BOV within 30 minutes.

If it's the latest type that Saab sells (with a weight attached to the diaphragm), then I blew a brand new one in less than 3 days (don't know quite when it failed). I refitted the previous one (a Bosch one of the previous type) and all worked fine. Fitted a Bailey valve a while later and it failed after 4 months (it wasn't new to begin with, though). Back to the trusty Bosch valve - problem fixed (again). I'll try again with a new Forge valve, I think, as I really want a quick-acting valve for the sort of boost I'm running. Hope it lasts...

[Friberg]

We've just had a discussion on STCS's forum about which valve to use for high boost and the most common one used among the high-boosters in Sweden seems to be the stock Mitsubishi EVO6 BOV.

But there are also o few still going with the old Bosch one, but with the connections turned the other way around.

One of the high-boosters blew a new Forge valve - so maybe you should try the EVO 6 instead, and save a few £ :wink:

[BillJ]

Originally Posted by Friberg

One of the high-boosters blew a new Forge valve - so maybe you should try the EVO 6 instead, and save a few £ :wink:

Too late - I've already bought the Forge. Not fitted it yet. How much was the "high booster" boosting? I'm only boosting to 1.6 bar.

[Friberg]

Originally Posted by BillJ

Too late - I've already bought the Forge. Not fitted it yet. How much was the "high booster" boosting? I'm only boosting to 1.6 bar.

Some of them are boosting 1.9 bar The guy who blew his Forge I don't know...