Any 18 procharged trucks out there?
09-14-2018, 10:39 PM
#33
Comparing two different platforms..a hemi will not rpm like a Coyote, With centris you gotta have a motor that will keep turning up RPM.. I dont doubt whipples power band but a 18' 5.0 truck with A10 trans and centrifugal cannot be far off!
09-15-2018, 09:37 AM
#35
09-15-2018, 11:20 AM
#36
Senior Member
High level, there are 3 things that ultimately determine, or limit, supercharger performance: boost curve, ultimate flow potential, and compressor efficiency.
Boost curve: I think we all know the characteristics of each, so I won’t waste time on that. One could argue that the 10-speed keeps the engine in the sweet spot, thus reducing the advantage of the PD blower. And they would be correct. However, the 4v 5.0 coyote is already lacking low-end torque in comparison to its 2v larger displacement competitors, so it really could use all the help it can get down low.
Flow potential: The standard whipple gen2 2.9 that came with all the truck kits up until about 6 months ago was capable of 1720 cfm (about 1150 hp). They haven’t published numbers on the new gen3. The largest ProCharger you can get with a 2018 f-150 is the d1x (standard is p1sc), which is capable of 1500 cfm (1000 hp). If you want to talk f-1x, then you are into complete custom fab stuff, then you’re talking 2000 cfm (1400 hp), but you would have to compare that to a larger Whipple like the 3.3.
Efficiency: This determines how hot the discharge air is at any given boost level, and how much power draw it will take off the crank. PD blowers used to be really terrible in this area, but have improved substantially. The gen2 whipple is 78%. ProCharger doesn’t publish these numbers but the range of comparable vortechs is 72-79%. Whipple hasn’t yet published the gen3 and gen5 efficiencies but they are saying they’ve improved over the gen2. This is likely a draw between the two.
Boost curve: I think we all know the characteristics of each, so I won’t waste time on that. One could argue that the 10-speed keeps the engine in the sweet spot, thus reducing the advantage of the PD blower. And they would be correct. However, the 4v 5.0 coyote is already lacking low-end torque in comparison to its 2v larger displacement competitors, so it really could use all the help it can get down low.
Flow potential: The standard whipple gen2 2.9 that came with all the truck kits up until about 6 months ago was capable of 1720 cfm (about 1150 hp). They haven’t published numbers on the new gen3. The largest ProCharger you can get with a 2018 f-150 is the d1x (standard is p1sc), which is capable of 1500 cfm (1000 hp). If you want to talk f-1x, then you are into complete custom fab stuff, then you’re talking 2000 cfm (1400 hp), but you would have to compare that to a larger Whipple like the 3.3.
Efficiency: This determines how hot the discharge air is at any given boost level, and how much power draw it will take off the crank. PD blowers used to be really terrible in this area, but have improved substantially. The gen2 whipple is 78%. ProCharger doesn’t publish these numbers but the range of comparable vortechs is 72-79%. Whipple hasn’t yet published the gen3 and gen5 efficiencies but they are saying they’ve improved over the gen2. This is likely a draw between the two.
Last edited by engineermike; 09-15-2018 at 11:37 AM.
09-15-2018, 01:11 PM
#37
thanks for putting everything in perspective Mike. I doubt it is a huge difference but it would be cool to see the the difference between the gen 3 2.9 and gen 5 3.0 as far as efficiency and cfm go. hopefully it will be published eventually