a mate has a 2005 vz ss and he cut the rear muffler box out (just before the tip), and he put it on the dyno and make 5kw more, is this possible??, would it improve it or loose power?, would anyone know, or the dyno was reading wrong??
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Think you mean rwhp or what mods have been done. 250 rwkw would amount to 320 fwkw. A stock VZ usually runs up between 190-200 rwkw(250 fwkw or around 250 rwhp). As a rough guide rwhp equal fwkw, 1kw=1.34hp and drive train losses around 25%. So multiply rwkw x1.333 to get fwkw.timcn said:his brother owns a performance shop with a dyno so he has access to it when ever.....he only had the car 2 weeks and put it on the dyno, it read 252.7kw, he was told to take the rear muffler out and he did,and it read 256.8kw, so i dunno what the go is...if the centre mufflers were takin out and the rear left in, wouldn.t it be too loud?