Why does lexus claim 416 hp if its not?
04-19-11, 06:00 AM
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Why does lexus claim 416 hp if its not?
I always wondered this. From all the dyno's i have seen of stock cars they are never know where close to the lexus numbers. Whats the reason behind this?
04-19-11, 06:00 AM
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The motor puts out 416, not all of it makes it to the wheels.
04-19-11, 06:01 AM
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Most dynos show power to the wheels, manufactures claim power from the crank.
04-19-11, 06:03 AM
Retired
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as the other posts have said. the 416 is the number the engine was dynoed at aka crank hp, after drivetrain losses it goes down.
04-19-11, 06:16 AM
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Quote:
Originally Posted by
mdsbrain
Most dynos show power to the wheels, manufactures claim power from the crank.
What he said. All factory cars are rated at the crank. So if u think Lexus is lying than all car manufacturers are lying. Lol
04-19-11, 06:28 AM
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Quote:
Originally Posted by
Steve727
What he said. All factory cars are rated at the crank. So if u think Lexus is lying than all car manufacturers are lying. Lol
EXACTLY^^^^GM zo6 claims 505, but in all reality i have seen them dyno as low as 430whp and as high as 460whp.
04-19-11, 06:54 AM
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Quote:
Originally Posted by
Mitch08ISF
EXACTLY^^^^GM zo6 claims 505, but in all reality i have seen them dyno as low as 430whp and as high as 460whp.
Yes this also applies to the IS-F as well some dynos have shown as low as 333whp and as high as 354whp stock.
04-19-11, 07:14 AM
1UZFE/2JZGTE
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Crank HP will always be higher so it makes sense for manufacturers to list that for marketing purposes.
04-19-11, 07:44 AM
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04-20-11, 07:31 AM
Lexus Test Driver
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its about 30% drive train loss
04-20-11, 09:21 AM
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Quote:
Originally Posted by
ilv1004s
its about 30% drive train loss
Not on an IS-F. More like 15-20% loss.
~Dv8
04-20-11, 02:45 PM
Tech Info Resource
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Quote:
Originally Posted by
ilv1004s
its about 30% drive train loss
??? 30% loss would be 416-(.3*416) or 291. No one has dyno'd under 330 at the wheels.
Part 2 - 30% of 416 is 124.8. No one has dyno'd 124 hp to the wheels either.
Are you mathematically challenged?
Typical drivetrain loss is 15% - 17%, but it's so widely variable it's pretty pointless to calculate numbers from "typical".
04-20-11, 03:10 PM
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i dyno'd 416...
04-20-11, 03:25 PM
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Quote:
Originally Posted by
lobuxracer
??? 30% loss would be 416-(.3*416) or 291. No one has dyno'd under 330 at the wheels.
LOL. I actually laughed out loud when i read this.
depending on what type of dyno is used, the percent lost can be greater
04-20-11, 04:53 PM
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^^ So did I. The ol'man is to the point, nothing wrong with facts...lol.
04-19-11, 06:00 AM
Why does lexus claim 416 hp if its not?
