Quote:
Originally Posted by wilsonp
Is the diminishing returns against the original baseline or against the previous modded performance and/or are the gains approximately constant in absolute terms?
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Let's say that the first mod will tend to hover around the high % gain estimate and all subsequent mods will hover around the lower % gain estimate.
Gains are cumulative, over and above the previous increase, but the differences are fairly small, so you could use either estimate and get within the ball park give or take 1 -2%
Basically, no matter what you do, you're not gonna see too many Z's breaking 300 - 310 whp on a dynojet SAE corrected with everything bolted on and a tune, at least until VVEL tuning is an option.