2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

How much boost?

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Old Sep 13, 2003 | 10:11 PM
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DelSlow's Avatar
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How much boost?

How much boost can i safely run with a 255 gp/h Walbro and an FCD as my only fuel mods?
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Old Sep 13, 2003 | 10:16 PM
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i would like to know that too...
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Old Sep 13, 2003 | 10:21 PM
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There's no set number. The only real way to see is to get your car on a dyno and monitor with a wideband.

I had just the walbro, and ran 11 pounds on the dyno in april. I put down 232 rwhp, my a/f rose to 12.5 for 300 rpms....but oddly enough this was after the secondaries had already come online. From there it settled into a 11.2-11.4:1 all the way to redline.
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Old Sep 13, 2003 | 10:42 PM
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do you have other mods? downpipe, mid pipe, catback, intake etc?
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