Is this normal?

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Aug 10, 2005 | 09:38 PM

critter

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From: Goshen, IN

Is this normal?

I finally broke down and put my car on a dyno before I left for BG since I didn't have time to tune at the track. It seemed to me like the RPM climbed real fast, so I logged a pull. I was at WOT for 3.9 sec and it ran from 3397 to 7455 in that time. That is ~ 1040 RPM/sec. Isn't that high? This is not a blown or nos monster - it was only making around 460 @ 6700. I thought the norm was 200 or 300 RPM/sec.

Aug 10, 2005 | 09:57 PM

lilbuddy1587

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Slipping clutch the culprit maybe ?

Aug 10, 2005 | 10:36 PM

critter

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From: Goshen, IN

Quote:

Originally Posted by lilbuddy1587

Slipping clutch the culprit maybe ?

Sorry, I didn't mention that. No slippage - the RPM and MPH traces from efilive track well.

Aug 11, 2005 | 07:37 AM

waSStock

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From: Cape Coral, Fl

What gear were you in? What brand dyno? Size of dyno rollers?

Aug 11, 2005 | 09:54 PM

critter

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From: Goshen, IN

Quote:

Originally Posted by waSStock

What gear were you in?

4th - 1:1

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What brand dyno?

Sorry - din't know there were other inertial dynos than DynoJet

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Size of dyno rollers?

Beats hell out of me. I assume normal size for a DynoJet???

Aug 12, 2005 | 03:09 PM

critter

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From: Goshen, IN

A forum site full of gearheads who dyno and no one has a clue ?????

Aug 12, 2005 | 03:56 PM

66deuce

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From: Goshen,In.

Quote:

Originally Posted by critter

A forum site full of gearheads who dyno and no one has a clue ?????

too hard of a question Carl,lol.i wish i could help you out,the only thing that i can think of would be,maybe,the tires slipping on the rollers?just a guess.i saw a friend of mine slip his on the dyno in Ft. Wayne once.and i think 460rwhp is pretty good with that power robbing drivetrain you have and those slicks.think what it would have put out with the stock drivetrain and wheels,lol.yeah,i couldn't make it to the dyno fri.,flipping work has me busier than a long tail cat in a room full of rocking chairs.
chuck

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