As promised, I went to Eurocharged in DC today and did a dyno run on the car with the new BOSCH 010 series Intercooler pump installed with no other changes from the earilier dyno run done with the dead pump.
The previous dyno run peak was 305 whp. Today, on a much colder and less humid day, the dyno showed 321 whp, a difference of 16 whp. Of note, is that the test was run from a cold start in the winter. I interpret this result to show that even in the absolute best conditions for the intercooler a dead pump will lose 16 whp. Once the car heats up, it would no doubt kill additional 10s of whp, and in the summer we all know that a dead IC pump will kill performance entirely perhaps a drop of 80 or more whp? Others might be better qualified to estimate this... OF VASTLY greater importance, the previous peak torque with the dead IC pump was 295 and post IC pump replacement was 327, a gain of 32 max torque. Peak torque came in at 2500 rpm with the new pump vs 3800 rpm with the dead IC pump.
After performing this apples to apples dyno test (same dyno, same tech, same setup, humidity was 12% on today's run vs 23% on dead pump run), I had a Needswings SCAI installed, and the final dyno result was 340 whp. Again, max torque of 339 came on strong 1k rpm earlier.
Originally Posted by
Da55id
When my SRT6 was first dyno tested it was at 249 whp, and after getting 65mm pulley and ecu tune showed 305 whp. Jerry at eurocharged was of the opinion that both results were quite low, and that typical stock was 285 whp and post pulley tune results were at and above 345 whp. So, we agreed that the very low results might be due to a dead IC pump. The pump was replaced with a Bosch 010 pump and the car woke up like crazy. I opened up the original pump and it was full of metal shavings. Later this month I will get a new dyno run on the very same dyno to see if/how much whp was restored by replacing the intercooler pump. After very extensive searching, I have not found a before/after dyno run that shows the actual WHP loss a dead IC pump causes...or at least a sense of the difference on a tuned/pullied srt6. After getting that baseline run done, we'll put on a CAI and see where we end up. I hope that this data will help future and current owners. I feel fairly certain that many SRT6's are being sold because of IC pump failure, a $110 part!!