Will trade my Supercharged 09 6MT E92 for F8X

[Spun Crankhub]

Originally Posted by wreckedmyf80

Many ppl aren’t interested in a modded and abused BMW. But there’s always that one guy that will go for a trade like this. Nothing wrong with it. GL

Abused? Says who? I think we all know how you treat your vehicles. I treat my cars right, and do preventive maintenance.

[onefastdoc]

Originally Posted by TacoChris

Thanks!

Awesome car man. Honestly I would keep it. It sounds 1000x better than an F8X car does.

[chetrickerman]

Originally Posted by TacoChris

Abused? Says who? I think we all know how you treat your vehicles. I treat my cars right, and do preventive maintenance.

It's a supercharged E92 that needs high rpm since the centrifugal supercharger robs even more torque, so yes it's a safe assumption that it's been beat on a fair bit.

[Wmf80]

Originally Posted by TacoChris

Abused? Says who? I think we all know how you treat your vehicles. I treat my cars right, and do preventive maintenance.

Lol all I have is exhaust for the sound. No tune or intakes or anything bc I ain’t crazy for abusing my car..

[Iyzmi]

Originally Posted by chetrickerman

It's a supercharged E92 that needs high rpm since the centrifugal supercharger robs even more torque, so yes it's a safe assumption that it's been beat on a fair bit.

I've never seen an E92 dyno chart that shows a loss of torque at any RPM from a centrifugal supercharger. It's a gain across the board from what I've seen. Can you please share an example of how you reached that conclusion?

[chetrickerman]

Originally Posted by Iyzmi

I've never seen an E92 dyno chart that shows a loss of torque at any RPM from a centrifugal supercharger. It's a gain across the board from what I've seen. Can you please share an example of how you reached that conclusion?

That conclusion is based on the fact that a centrifugal supercharger is a parasitic loss type of power adder, so until boost kicks in, it does cause a small amount of torque loss

[Iyzmi]

Originally Posted by chetrickerman

That conclusion is based on the fact that a centrifugal supercharger is a parasitic loss type of power adder, so until boost kicks in, it does cause a small amount of torque loss

Every dyno chart I've seen shows a gain across the entire rev range, including 2k RPM where there is no boost.

[chetrickerman]

Originally Posted by Iyzmi

Every dyno chart I've seen shows a gain across the entire rev range, including 2k RPM where there is no boost.

https://www.dragzine.com/news/lose-p...-loss-testing/

[IK6SPEED]

Due to a recent unexpected event, I’m seriously down for getting into something different as you suggested in OP.

When would you like to pickup the F80 and exchange titles?

[Iyzmi]

Originally Posted by chetrickerman

https://www.dragzine.com/news/lose-p...-loss-testing/

The reality is that the parasitic loss of a supercharger at low RPM is imperceivable and a supercharged E92 feels stronger across the board. Again, I'd like to see a dyno chart that shows a loss of torque at any RPM because every chart I've seen shows that torque is the same or slightly increased at 1500 RPM and increases steadily after 2k. Here is one of countless examples.

I do however agree that it's fair to assume a supercharged M3 was potentially driven more "spiritedly" than a bone stock one. Not always the case, but a fair assumption none the less.