It took our team more than one year to hit 700 whp with the CT4-V Blackwing. The CT5-V Blackwing should easily cross that threshold next month, on pump gas, only two months into the process.
We did four baseline runs over the last 15 days, ranging from 614 to 621 whp on a DynoJet with SAE correction factor and smoothing = 5. We decided to use the median 619 whp pull as our official starting point.
We installed Green performance air filters, Kong Stage X ported supercharger, Nick Williams 103 mm. throttle body and got 673 whp.
Next we switched from the 2.50 to 2.30” GripTec supercharger pulley and installed Brisk RR12S spark plugs with .027” gaps and got 694 whp. All runs were done using 93-octane pump gas.
Next month we plan to add Kooks competition headers, a little more boost and also start testing with ethanol fuel blends. We’ll be shooting for 730 to 750 whp.
Special thanks to Alek from Illinois who loaned us his car to experiment with!