Road Dyno working - Saab Performance Bulletin Board - Saabnet.com
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Road Dyno working
Posted by Gary (more from Gary) on Mon, 5 Feb 2001 02:50:14
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Road Dyno hookup works perfectly with the inductive pickup around the green wire going into the DI casette. WE calibrated the paramaters with a steady state run to reference RD data with GPS speed data at 3000rpm.
10 runs in second gear 1500rpm to 6200rpm (rev limiter)gave the following results. These are wheel readings and are not corrected for drivetrain losses or altitude ect but actual measurements.
torque peak 286 lb/ft at3300rpm
hp peak 222 at 5500 rpm
A 15% driveline loss converts these to 337lb/ft and261hp at flywheel. further corrections can be made for altitude but the standard conversions do not apply for turbocharged cars. (Alt 3500 ft)
Also raw data allows you to get speed to speed readings within .001 sec..
30 to 60 mph 2.900 seconds...
Test car is a 95 9000 Aero with Abbott Ecu with broad boost peak of 20 psi at 3200 rpm tapering to 15 psi at 5000 rpm. The car has all the rest of the goodies you guys talk about on this BB,including a limited slip just installed.
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