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Discussion Starter · #1 ·
Finally fitted a MBC+A on the 9000 this past weekend.
This is on a '93 9000 aero so there was no easy solution to a pressure tap downstream of the IC without some more serious modification to something more permenant. The bottom port takes pressure from the turbo and the top port returns it to the WGA. Next would be to tap the IC pipe and move the MBC pressure to there leaving the turbo to run the anticipator. Nothing stock was cut or modified. The hoses off the BPC were extended which without the +A would have been bad but being the +A is priming, the added length of hose was not an issue.

Overall, the car reponded well. Turbo spool up was reduced and boost was strong without overshooting in every gear. A good outcome.

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