Wrapper

[Cyorke]

SOme of it has to do with the gas that they run through the engine while the test is being done. From what I can gather they list HP ratings according the the premium fuel. However if the car does not require premium then they can not list tht Hp rating. SO if a car running premium produces 200 Hp and the same engine running regualr produces 195 they have to lsit the 195.

However it also has to do with what accessories are being run at the time the test is done also. I think now they are required to run certai naccesseroies whereas before they were not required to. Like PS and alternator and things like that that can cause a drag on the engine.

this is what I have come to gather anyway.

As for the HP rating of your car it all depends on how you want to looka t it. If you go by the old way of testing hten yes you have 103 but if it were to be tested using the new standards then it could be but not absolutely be lower. In some cases as with the Domestic manufacturers it has actually gone up in some instances.

It is not really a matter of lying inteh past it was more or less bending the rules.

also the Hp rating that we get from manufacturers are at the flywheel. SO if you were to get your car tested ona Dyno it wouldprobably be anywhere from 10--20% lower than what the HP rating is according to any SAE testing. HTis is due to the loss you get through the drivertrain.