E55 intake manifold vacuum on a dyno run, what's the norm ??
08-11-2016, 06:36 AM
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E55 intake manifold vacuum on a dyno run, what's the norm ??
Ran an E55 on the dyno the other day, has a few mods and goes well.
made just under 500 hp @ wheels.
I noticed when I read the vacuum after the throttle body and before the blower inlet it was pulling almost 5 inches of vacuum.
My belief is this is a sure sign of bigger t/body required.
It has larger air cleaner inlet system, but the t/body and intake ( back of supercharger is stock )
Would we notice much difference ?
What are other people getting ??
I am a little nervous about doing the t/body as there are many stories as the tune will have to be changed as well.
Any suggestions ??
made just under 500 hp @ wheels.
I noticed when I read the vacuum after the throttle body and before the blower inlet it was pulling almost 5 inches of vacuum.
My belief is this is a sure sign of bigger t/body required.
It has larger air cleaner inlet system, but the t/body and intake ( back of supercharger is stock )
Would we notice much difference ?
What are other people getting ??
I am a little nervous about doing the t/body as there are many stories as the tune will have to be changed as well.
Any suggestions ??
