Get educated on dynos.

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Mar 1, 2005 | 08:07 PM

#11

DynoDR

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Quote:

Originally Posted by SportSide 5.3

Definetly. If I've learned anything here, it is that!

Another thing dyno's don't tell you is 'acceleration'. That's why it's better to look at average tq, rather than peak hp figures.

One may have 500rwhp, but if there is no 'usable' power below that peak, then what's the point? I don't think this has to be preached to us truck members as much. We understand we need torque moving these heavy *** things.

And speaking of the locked torque converter vs. unlocked, how about Justin's (quikenuf) TR220 dyno. Did he really gain 80rwhp....

We actually do log acceleration per second on our Mustang Dyno. As far as I know this can be done on any loaded dyno. Usually we adjust the acceleration rate to a fixed amount per second for accurate tq comparison when tuning but I will do a before and after acceleration test if the customer wants it.

Mar 1, 2005 | 08:13 PM

#12

unredeemed

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From: San Diego

Quote:

Originally Posted by GoldenVelvet

So can someone explain why a Supra that dynos with 500HP and a Supra that dynos in 1000HP will both run 11's?

Actually you should rephrase that...

What does a 400HP and 1000HP Supra have in common?

...Wait for it...

...Wait for it...

A 13 second time slip.

Supra's without serious race preperation will be a 13 second car no matter how hard you try. I even thought I could best my own buddies own supra by taking it down the strip only to take it sideways from 1st through 3rd gear before getting traction. On slicks, we were marginally better netting a .4 reduction in times, and a better 60'. But they do need some work to get going with the power they make.

Mar 1, 2005 | 08:53 PM

#13

parish8

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From: omaha ne

i was convinced the mustang dyno was the only way to go but after spending time on both dynos i like the dynojet better. it seems more consistant, repeatable. like the artical says, just goto the same dyno everytime and try and get improvements.

Mar 1, 2005 | 08:55 PM

#14

parish8

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From: omaha ne

there are some seriously quick supras around here. a 9sec, a 10sec and a 11sec supra and they all drive on the streets.

Mar 1, 2005 | 09:16 PM

#15

F8L Z71

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From: Sacramento, CA

That's weird as I've seen more consistant runs on a Mustang and the weird inconsistant runs on the Dynojet. I think that may be due to different dyno locations and operators. I agree that you should find one and stick with it. Only variable is on turbo cars where you almost need the mustang dyno to get it loaded properly for AFR readings and get boost up.

Overall though I just wanted others to see the differences in HP readings

Mar 1, 2005 | 09:24 PM

#16

parish8

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From: omaha ne

Quote:

Originally Posted by F8L Z71

no problem geting the boost up in my truck, this was pump gas.

>> http://www.dynosport.com/trucks/3.htm

Mar 1, 2005 | 09:27 PM

#17

nativetexan

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From: East Texas

Quote:

Originally Posted by F8L Z71

Good point.

This is the reason I take dyno's with a grain of salt until I know the specifics and even then until I see 1/4mile times and MPH I can't give 100% props.

I agree totally. Don't put too much faith in your dyno numbers. Get some track results. That said the dyno is a great means of guaging (sp?) performance gains. Just don't introduce too many variables like different locations, weather conditions, etc...

Mar 1, 2005 | 09:36 PM

#18

F8L Z71

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From: Sacramento, CA

Quote:

Originally Posted by parish8

no problem geting the boost up in my truck, this was pump gas.

>> http://www.dynosport.com/trucks/3.htm

Don't remind me damn you! I'm still drooling over that TQ

Mar 1, 2005 | 09:47 PM

#19

Hawk179

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After being on all the different types of dynos, I am actually considering buying a dynapack dyno. Its the only dyno out there, next to dynodynamics, that is a true load dyno. Here is theri site if you realy want to understand how it works.

Parish, if your worried about tire spin, this dyno will take care of that for you.

Dyan pack website