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On 7/5/2018 at 9:57 PM, BreakMyWindow said:

Cars competing in 2kcup are put on the dyno so there’s no point trying to do anything cheeky.

In that case its the M52  because it produces more torque but the performance index will be based on power. 

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On ‎7‎/‎1‎/‎2018 at 11:59 PM, 3pedals said:

Here is the dyno  with  just the exhaust done this  shifted max power to 5,700 Rpm from 5,300  a few more upstream mods since this have seen max power shift to about 6,300 RPM . What is also eliminated is the dip at about 6 grand on the stock exhaust. 

 Note the red dyno line already had some intake work done upstream of the intake manifold which shifted peak power from 5,300 to 5,500 

Used to be slow getting to the red line before this now hits the rev limiter frequently in second and easily gets there in third.  

328 Dyno.pdf

What had you done upstream of the intake manifold to shift the power before the headers went on?

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