Quote:
Originally Posted by KingLT1
Folks tend to get caught up in Dyno numbers and look at peak numbers. when I look at graphs of P1 cars, the power curve leaves a bit to be desired. So many overlook shift extension and what rpm the engine falls back to on a gear change. Also some are running into cooling issues with the P1 blowers...mainly when turned up. Keeping IAT's in check becomes a issue. I believe that is why Lethal ditched his P1 in favor of a Whipple. Pray Performance took a P1x A8 car with headers, converter, and meth to 10.0 @ 138(which is flying), but IAT's were 150+ on a 60 degree day. I even sent him a PM the day he posted those results inquiring about going that direction...he recommended going D1.
From what I gather the P1 is a good blower and fairly efficient up to 600whp, then cooling becomes a issue when pushed past that point. The Maggie is more efficient when pushed harder. I would put the LT4 blower and P1 in the same category except the LT4 provides a much better power curve. So for those that just want a simple 550whp combo, imo the LT4 is hard to beat for the price and it's a Oem solution. The Maggie offers a lot of room to grow and can utilized from 500-750whp. The D1 on the other hand pretty much maxes the stock fuel system out of the gate and for some reason many people are willing to spend big bucks on a supercharger but DON'T want to spend the money on fuel supply, that is why you see so many P1's being sold.
Moral of the Story, you get what you pay for. A 5k blower is going to get you a 600whp capable setup that maintains good efficiency and cooling. However, if you want room to grow I would skip the P1 or LT4 and move up to a Maggie, Whipple, or D1 with upgraded fuel system and not rely on Meth for fueling. You gotta pay to play...no free lunch here.
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I agree. No free lunch at all. GM really put the hurt on mods with fuel delivery on these cars. Have you seen the 18 Mustang with a p1x, injectors, fuel pump booster, and headers throwing down 736-738 to the rear wheels on 109, and 680s on pump 93?