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got a question for ya.....power is lost from the engine to the wheels because of gearbox, diff, etc.....what power is lost with the wheels? how much power will be lost having massive 19" 275 compared to stock 16" 205?

Corinne just told me about this last wknd at AS, so count me in. i was worried it was on a sunday as i wouldn't be able to make it but being a saturday i'm all for it. Fingers crossed for 200kw at the fronts!

Am I getting commission for this?

LOL!

the bigger wheels you have the more power you get. same with chrome. Thats why people go bigger and bigger wheels thse days....not becaues they look cool, only the cool people know they add at least 30kw for every size up. who needs bigger turbos when you can get the same power with 2" larger wheels

the bigger wheels you have the more power you get. same with chrome. Thats why people go bigger and bigger wheels thse days....not becaues they look cool, only the cool people know they add at least 30kw for every size up. who needs bigger turbos when you can get the same power with 2" larger wheels

wrong...smaller diameter more power

But why is that? is it because of the rotation or something?! ie: rotates more because of the smaller diaameter?? I always thought, regardless of the size of the rim, the tyres will always fill it out to the same rim.. bigger the rim.. less the profile of tyres, and vice versa for smaller rims... ????




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    • Very decent bit of kit. Definitely black it out I reckon.  
    • Because people who want that are buying euros. The people with the money to buy the aftermarket heads and blocks aren’t interested in efficiency or making -7 power, they’re making well over 1,000hp and pretty much only drive them at full throttle  best way to way make money is know your customer base and what they want and don’t spend money making things they don’t want. 
    • It's not, but it does feel like a bit of a missed opportunity regardless. For example, what if the cylinder head was redesigned to fit a GDI fuel system? It's worth like two full points of compression ratio when looking at modern GDI turbo vs PFI turbo. I'm pretty reliably surprised at how much less turbo it takes to make similar power out of a modern engine vs something like an RB26. Something with roughly the same dimensions as a -7 on an S55 is making absolutely silly power numbers compared to an RB26. I know there's a ton of power loss from things like high tension rings, high viscosity oil, clutch fan, AWD standby loss, etc but it's something like 700 whp in an F80 M3 vs 400 whp in an R33 GTR. The stock TF035HL4W turbos in an F80 M3 are really rather dinky little things and that's enough to get 400 whp at 18 psi. This just seems unwise no? I thought the general approach is if you aren't knock limited the MFB50 should be held constant through the RPM range. So more timing with RPM, but less timing with more cylinder filling. A VE-based table should accordingly inverse the VE curve of the engine.
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