Great points Rubber Duck and I'm 100% with you. I wish the whipple had been reliable for me but after 4 different failures requiring the blower to come off, I wasn't about to put it back on my car. To clarify my earlier comment, the 2650 is performing better for ME on MY car, and not just in terms of reliability. We were close to maxing out the whipple on my car (warranty rpm). Looking at a bunch of old logs, it was holding 21-21.5 psi with spikes to 22. With the eforce 2650, my logs are showing it doesn't drop below 21.1 with a peak of 22.x and riding closer to 22psi at the top of each gear. At the same boost levels on my car, the eforce made 15 more peak hp and 60 ft lbs more peak torque. As you mentioned, the 2650 is making a lot more torque in the lower rpm range. At EVERY point in the graph, the eforce is making the same or more hp and torque.
The car has a chiller system on it so I've never had heat issues with either blower and can do back to back pulls without any IAT retard. The dual pass intercooler design of the eforce is interesting to me and I'm hoping someone does real world comparisons against the whipple. I assume the whipple would run cooler but who knows. I tried sifting through a number of logs but I'm having trouble finding 2 that closely match in ambient air temps and starting IATs/MAT values.
The whipple has been out a while and I don't think I've seen even one 1000whp build on the LT4. The 2650 hasn't been out long for the LT4 and I've seen several breaking 1000whp like it is nothing.
