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3512 Well FRAC Engine testing

Does anyone have any dyno testing procedures/tooling and info on the 3512 Well FRAC Engines with Prefix R1A and R2A with Air to Air aftercooler arrangements on the trailer package. Horse power range between 2200 and 2500.

What setup of aftercooler would be best to maintain proper intake temperature and keep boost pressure loss to a minimum? The Aftercooler setup from the G3520 is what we are looking at right know to modify.
Pictures of these engine being tested always help too.
Thanks