10-22-2012, 11:24 AM
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#32 (permalink)
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A True Z Fanatic
Join Date: Jun 2010
Location: Long Island
Posts: 5,059
Drives: slowwww
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Quote:
Originally Posted by kenny's 370z
less flow over the maf results in more power via less fuel being dumped resulting in a more lean condition is it not ?
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Less fuel & less air equals less power. Lean/rich conditions vary depending on the tune parameters and is adjusted via the MAF readings. If there's less air flow, then there's less power...more airflow, more power. The A/F ratio is not something static in electronic fuel injector engines since it can vary the amount of fuel. This is basically why people eventually need a tune. It gets pushed beyond the stock map when they add bolt ons that increase intake and exhaust flow.
With a turbo for example, you're pushing more air and in and the ECU will tell the injectors to dump more fuel.
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