Quote:
Originally Posted by PeteSS2018
I've had my Whipple install now for about 6000 miles (10,000 km for us Aussies) and its making about 550 whp at 9.5psi, and never misses a beat. Smooth to drive at regular speeds, andceconomy is damn good for a 650hp motor. I also love the soft whine of the blower, but dont like the muted rattle at idle which Whipples all seem to have. My only disappoinment is that launching it on the street has become harder now with all the instant torque, so you have to work pretty hard to find a sweet spot where max throttle and max traction meet ... mind you its a lot of fun trying ��
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My experience with the Maggie is similar, 560 rwhp at 7.5 psi, but of course dyno results aren't comparable, this is just an illustration. No rattling at idle at all, and very little blower whine, which I actually like, I'm not a big fan of the Hellcat style, shot ball bearing whine (to each their own
). During normal driving, fuel economy is about 1-1.5 mpg less than without the supercharger, and I suspect it's mostly due to AFM being turned off in the tune, there is very little parasitic loss according to Magnuson when the bypass is open.
As with Pete's car, 1st gear is practically unusable for a launch on street tires (I have wide PS4S tires on 1LE spec wheels), 2nd gear is better. And this is a very subdued, safe build, I can't imagine how folks at 750-900 rwhp can launch a RWD car on anything other than slicks.