300E Turbo question
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Joined: May 2005
Posts: 2,494
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From: REHOBOTH BEACH DE
88-300CE TWIN TURBO, 99-C43, 05-G55K, 71-280SL, 94-E320 CAB, 08 CLK63 BLACK SERIES
It's not worth the cost of boosting if you're not going to address the required fuel enrichment.
Stock CIS-E or HFM may be able to handle about 4PSI boost.
You can add a mechanical adjustable rising rate fuel pressure regulator.
It would be better then nothing but still not provide a consistent fuel MAP.
Power is made with consistency of all components in any boosted engine.
The concern is the stock fuel map under boost.
If the stock MAP doesn't enrich quick enough under full throttle even at low boost you may damage your internals.
