1999 Saab 9-5 motor swap? - Page 2 - The Saab Link Forums

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Performance Modifications for the 9-5 This forum contains PERFORMANCE related Q&A's for the 9-5. This may also include suspension.

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Old 07-10-2013, 11:08 AM   #21
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I believe its 91.mm pistons. the bore is 93mm I believe let me double check
Wut?
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Old 07-10-2013, 11:21 AM   #22
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Whoops my mistake they are 91mm.
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Old 07-10-2013, 11:22 AM   #23
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And the bore is a little bigger, forgot the exact measurement
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Old 07-10-2013, 11:24 AM   #24
 
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And the bore is a little bigger, forgot the exact measurement
It's .040
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Old 07-10-2013, 11:32 AM   #25
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Then nothing to extreme. My apologies.
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Old 07-10-2013, 12:45 PM   #26
 
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Then nothing to extreme. My apologies.
No apologies necessary!...that's a good thing! Other B235s have shown this is a pretty safe overbore that can support massive power without causing problems....
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Old 07-10-2013, 12:52 PM   #27
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Im worried that my transmission will go if i turn up the boost too much. My friend fabricates stainless steel parts for MRI machines and we drew up the design for a 3inch down pipe.
Would it be pointless to have a 3 inch down pipe if the cat back is a 2.5 remus?
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Old 07-10-2013, 01:10 PM   #28
 
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Im worried that my transmission will go if i turn up the boost too much. My friend fabricates stainless steel parts for MRI machines and we drew up the design for a 3inch down pipe.
Would it be pointless to have a 3 inch down pipe if the cat back is a 2.5 remus?
Not pointless at all.

The reason for the downpipe is the reduce the amount of backpressure on the turbo, which helps it spool faster and makes it more responsive.

Sounds like you're on the right track
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Old 07-10-2013, 01:12 PM   #29
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Not pointless at all.

The reason for the downpipe is the reduce the amount of backpressure on the turbo, which helps it spool faster and makes it more responsive.

Sounds like you're on the right track
awesome advice! thanks alot. i'll keep you posted!
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Old 07-14-2013, 06:57 PM   #30
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saab motor progress in two hours of getting parts.



After three,


Clutch comes in 2 to 4 days.
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Old 08-01-2013, 06:13 PM   #31
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Car runs greats and swap complete! Highway rocket
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