quadfecta, Hey Amir, quick question. Why is it that on the first dyno the lines

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Dec 1, 2004 | 08:16 AM

Projekt 8E

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quadfecta, Hey Amir, quick question. Why is it that on the first dyno the lines

cross at 5280, but the other graphs don't? is there something I'm missing? I'm no expert but I thought they were all supposed to cross at 5280 RPM
<img src="http://pictureposter.audiworld.com/33061/baseline1.jpg">
<img src="http://pictureposter.audiworld.com/33061/baseline2.jpg">
<img src="http://pictureposter.audiworld.com/33061/dahlback94.jpg">

Dec 1, 2004 | 08:22 AM

amirsafdari

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I'm going to be perfectly honest and say I really dont know..hopefully someone would be kind enough

to try to explain...sounds like a really good question.

Dec 1, 2004 | 08:23 AM

Projekt 8E

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learning curve for both of us

)

Dec 1, 2004 | 08:25 AM

alipor

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The curves shifted to the left depending on which gear

you use, the fist lines that are to the left are 3rd gear pulls, thus the movement. If you did it in 5th it would move to the right

Dec 1, 2004 | 08:30 AM

Awadd9

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A couple of untrained answers.

First and foremost, notice the scaling of the graph on the baseline, ranges for tq and WHP are the same.

With his Dahlback graph you will notice that

on the right Ft/lbs of Torque is scaled from 25-225

On the left from 17 to 153 whp.

Now this may be the reason, you would have to re-scale the graph first to see.

Dec 1, 2004 | 08:39 AM

Projekt 8E

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ahh, I just thought they were always supposed to cross at 5280 because that's

the number divided to determine HP.

Dec 1, 2004 | 08:46 AM

Awadd9

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Re: ahh, I just thought they were always supposed to cross at 5280 because that's

I think they traditionally are supposed to cross at that number or all else being equal they will cross at that point to to whatever formula is used to calculate WHP. I think the WHP number is a function of torque that is generated on the rollers. I do not know what the formula is though.

Like I said earlier you would really need to see the graph scaled correctly to evaluate. If it still comes up strange than it might be an issue of the car not being callibrated quite right on the Dyno. Really tough to say though..