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2nd Generation Specific 1986-1992 Discussion

87 Turbo Two

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Old 04-15-2003, 09:21 PM
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is it safe to run a 3 inch turbo back exhaust with the stock turbo or would it be better to run 2.5 so theres more back pressure?
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Old 04-15-2003, 09:36 PM
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Get a walbro fuel pump, or SAFC to add more fuel and you should be ok. A boost controller and ported wastegate would help out alot too.
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Old 04-15-2003, 09:58 PM
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the problem is boost control, 2.5" exhaust will prolly hit fuel cut (9-10psi) the 3" will make more power but its at like 11-13psi and thats a lot



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