I recently bought a Blitz power ID, i must say they are a nice item.

But can anyone tell me how accurate they are at measuring BHP and does it need to know the weight of the car and does the speed parameter need to be calibrated to be accurate?

 

surely someone has one, no?

 

I would calibrate it by getting your car weighed on a weighbridge (testing centre or down at the local tip) to check the typical weight it would be with you driving, and then the speed against a GPS...

 

I have a road angel so that should be the speed sorted, cheers mate.

Does anyone know the weight of a 1995 WRX?

 

I have one but I think is not 100% accurate I would say 75% at power
Yes you should feed it with all the right numbers, and to set the speed parameter try to adjust it at the end of 40km and hope you will get the right readings



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IIRC it's kerb weight is around 1280kg (UK cars without air-con and some of toys weigh 1235kg) but if you want more accurate figures you'll need to get the car weighed