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Old 03-05-2013, 12:06 AM
HQHolden HQHolden is offline
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What is causing this flat spot in power?

Had my engine dynoed a while back and all went well. Got everything up and running and seemed to be going well. Took it to the track and was not running the times I had expected. So took it to a chassis dyno and found a huge dip in power towards the top before it picked up again.

Attached is the printout of both dynos. As you can see the engine dyno shows a smooth power delivery all the way through. Everything I am running on the car was used for the engine dyno, eg water pump, alternator, fuel pump, reg, etc. On the chassis dyno we tried dropping the exhaust system in case there was too much back pressure but it made no difference at all.

So what do you think?



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