See title. When you want to convert aspiration, single turbo has more torque at low rpms than twin turbos? Can they fix this and switch it around? I thought that the whole point of twin turbos was to reduce turbo lag and increase low rpm torque?
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Depends on parallel vs sequential & multiple other factors, all of which in no way apply in a real sense when it comes to this game & the application of reality 
Because the developers have no idea what Turbos actually do. They just create algorithms to output a figure. And move a sled around a test bed.
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Which car are you talking about? In most cases, twin turbos will give you more (relative) low end torque than single turbo upgrades.
I tossed that (relative) in there because the PI system. While a twin turbo will usually give you more low end torque, it’ll also prevent you from putting as much torque into your build when you build to a specific pi because twin turbos cost more.
The Diablo SV, but there are more.
Some do have it set correctly, I’ve noticed that too.
The stock Diablo SV doesn’t have a turbo so adding a twin turbo is just that, adding a twin turbo to a normally aspirated engine.
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Why are the superchargers so nerfed in this game? It’s like in the Forza universe, tiny 6/71 roots style superchargers are the biggest you can get your hands on…
Centrifugal superchargers are by far the best engine upgrade.
Normal superchargers are as PI efficient as every other engine upgrade besides camshafts which are in most cases overpriced.
Twin turbos offer more torgue on lower rpm than single ones but have a flatter rpm curve.
Have to check the mentionend Diablo SV (which I always upgrade with centrifugal because centrifugal has no competition).
Generell ranking for PI-efficiency:
Centrifugal supercharger > turbo chargers > other engine upgrades/normal supercharger > camshaft.
This can vary depending on the characteristics of the turbo chargers and the intended use. For example the HW 2JetZ as S900 Dirt is better with camshafts than turbo upgraded although the latter has the better stats. Simply because the turbo upgrade leads to a huge turbo lag which can’t always be avoided due to the nature of Dirt racing.
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I was talking about how the top Roots style supercharger only adds a small amount of hp, compared to the possible IRL counterparts. A top fuel Roots style supercharger is 14/71 and can generate up to 65 lbs. of boost. The one we get MIGHT be 6/71 and generate 20 lbs. IRL a centrifugal is not the best option when trying to produce large amounts of boost/HP.
A blown Hemi IRL should produce (with the correct size supercharger) north of 1500 HP for street use. We can barely get 670 hp with a full upgraded engine in FH…
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I see. Just throw every standard at Forza reflecting RL values out of the window and accept the shenanigans within the game mechanics.
Helps a lot with accepting things like they are. Weight reductions are also just some random numbers.
A fairly built HEMI would easily put out this much power with no blower of any kind.
A well built one could push 1000hp easy naturally aspirated.
I know, that’s why I’m mad…lol. All the base engines need to be buffed when it comes to adding parts. The '68 Firebird in the last game was the same way. Couldn’t even top A class with the stock engine…
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And that’s exactly why I keep saying the developers simply can’t be car people. They just don’t have a clue about car culture.
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