PP calc error?

[Conza]

I had a high rpm turbo on a car, then added a mid rpm turbo, and the pp went up.

I'm not sure I fully understand PP, as it doesn't account for non weight/power upgrades, so there might be something I'm missing here, eg. a mid-turbo will actually make a smaller engine car perform better, or something like that, anyway, here's the images I took to show you my confusion.

 

[Raitziger]

It is not wrong because that blower gives you more mid-range torque which is more important than peak power for how car launches out of slow corners. However I would only use those for rally cars in GT5 because I like "peaky" power output in circuit racing.

 

[snowgt]

Previous poster is correct. The formula that PD uses for the calculation of PPs apparently uses something like the integral of the torque curve. (for the mathematically challenged: that's like the area under the torque curve - if the mid-range turbo adds more area than the high-rpm one => more PPs)

 

[granddriver]

I like using the mid range turbo. It gives you a lot of torque. In tight corners you can use a higher gear so you don't get a lot of wheel spin. All that torque will pull you right out of the corner.

 

[Conza]

Ok thanks for the input, its interesting to see how it goes up, while power to weight goes down (marginally albeit in both cases).

I should test which is faster on a short and also a long track (eg. lots of straights on one track and lots of corners on another type thing).

 

[Jmac279]

Alluding to what the others said, average power is more important than peak power for acceleration. Higher peak power will give you a higher top speed if you properly configure your transmission (you want to hit your peak power in the final gear near the end of the longest straight), so it can prove more beneficial on tracks with long straightaways.

 

[NjLowrider]

I think its the turbo lag on small engines. Cant be good if it wont get off the starting grid.