How much BUS HP do I need for a 16000GVM?
Originally Posted by
Pedro_The_Swift
Is there a technical reason for tag axles other than weight?
are discs (like with the Volvo B7R) worth chasing?
The extra weight carrying is usually the main issue. Comfort is an added bonus, as the extra axle helps smooth out the ride.
You do need to be aware that tag (or "lazy") axles make it very easy to lose traction with the drive axle on loose surfaces or going over undulating ground.
For keeping up with highway traffic at 16T gvm I would suggest at least 280/300 horsepower ("real", not European)
Disc brakes will always out-perform drums, but it depends on the application as to whether it is cost-effective. Town running with lots of stop-start I'd go for discs. Long distance stuff, I wouldn't consider them a deal breaker.
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