Console01sm.jpg (5994 bytes)Here is a snapshot of a current dyno run with 14 pounds of boost and a 75 HP Nitrous shot.  The two columns on the right of the chart show a compensated HP/Torque rating.   The compensation is shown for two reasons.  Lotus engineering indicated that since the dyno runs show 'rear wheel horsepower' there is approximately a 15% lower reading of actual 'engine horsepower' and torque due to the power consumed to turn the drive train.   Also, Lotus Engineering indicated that the rear wheel HP/Torque would be further diminished due to the much wider, therefore heavier, rear wheel/tire combination I have installed.  They estimate that this would show an 18% reduction in rear wheel HP/Torque combined with the drivetrain loss.  The current engine rebuild from In Tune combined with the inter-cooler setup from Swede Speed and Hyper Sports, custom chip from PUK, and of course the NOS make a 207 HP improvement from stock at 15% compensation and 227 at 18%.  Since this dyno run we have greatly improved the efficiency of the intercoolers so these numbers are going to show a little on the low side.  I can't wait to find our how much!

UPDATE!!  The new intercooler was tested and makes a net 17 HP difference at the rear wheels at 12 pounds of boost.  It also maintains a 94 degree air inlet temperature at 14 pounds of boost.

NOTE***  On the dyno chart below the 2 lines represent Torque and Horsepower.  They read from left to right scaled on RPM.   The upper line at the beginning represents torque.  Maximum torque was 439.6 right around 3700 RPM.  As you can see the horsepower was climbing all the way to throttle liftoff at 7400 RPM to end up at 473.4.

Dyno Chart 04-02-04 2.jpg (582610 bytes)

Boost Level PSI Nitrous  ON/OFF Rear Wheel HP Torque Actual Engine HP/TQ 15% Drive Train Compensation Actual Engine HP/TQ 18% Drive Train Compensation
14 ON 473.4 439.6 557/517 577/536