Re: [DML] Re: Bolt On Performance.
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Re: [DML] Re: Bolt On Performance.



I can tell you that a stock original coil runs the spark quite happily 
on #2727's Renault turbo engine at 1.2 bar of boost. A so-called 
"performance" coil started misfiring at about 4psi...

Martin


mike.griese@xxxxxxxxxxxxxxxx wrote:

> My problem with all of these "performance improvements" is that
> there is never any data to back them up. If these things really are
> an improvement - prove it. Put a standard, freshly tuned up car on
> a dyno for a baseline run. Then make One Change and put the car
> back on the dyno and measure the difference. Then put the old parts
> back on and put the car back on the dyno. The first and third runs
> should match, the middle run shows the improvement.
>
> Dave is right - you can't evaluate any new part as a performance
> improvement unless the part being replaced is running at it's optimum
> specification. It's like replacing a 25 year old, flat bald tire
> with a brand new properly inflated tire and claiming that it's
> an absolute performance improvement over the original spec tire.
> You aren't comparing to an original spec tire - you are comparing
> to a 25 year old, flat bald tire.
>
> Until there are measurements, it's all snake oil.
>
> --
> Mike
>


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