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Just did the Intercooler Fan this weekend
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Posted by WASSAAB (more from WASSAAB) on Thu, 25 Oct 2001 09:23:55 Share Post by Email
In Reply to: Intercooler Fan, Jonathan W, Thu, 25 Oct 2001 08:54:40
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and it works very well for me. I run about 23+ psi of boost, so I needed the extra cool chrage to really make that effective. Very easy to install, too.

As far as additional cheap performance:

go to a junkyard, and find any non-turbo 900. Buy the 3.0 bar fuel pressure regulator (the one on your car now is a 2.5 bar). Should cost you $5 - $10. Allows you to sustain higher boost levels with added fuel. Does not do much to fuel economy, as long as you are not flooring it all the time.

Next, remove your APC solenoid (sits at the front of the engine bay, on the front of the core support above the radiator) and take out the small green restriction that is inside of the middle entry for the solenoid. Replace the green with a windshield washer check valve (small brass and black plastic piece, buy one from Saab; break off one of the arms to the check valve, keeping as much of the black plastic on it as you can) Once you break it off, it should be about 1 cm long and basically a cylinder. Insert this into the solenoid in the hole where the green restriction was. While you do not need to, you can use some type of glue to hold it in. It is not necessary, but if you want to be extra careful...

This new restriction in there tricks the turbo into pushing harder before the wastegate will open. It works very well, and these two minor modifications were done with fantastic results on several cars.

E-mail me if you have any questions. Also, check out the performance BB.

Mike
88 SPG

posted by 12.40.17...
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