What to do before the dyno? - MBWorld.org Forums

May 4, 2006 | 11:59 PM

dsb

Thread Starter

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Joined: Mar 2005

Posts: 1,164

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From: sac, calif.

'06 slk55

What to do before the dyno?

Hey all,

I have a couple questions regarding a dyno. I want to get a baseline as I plan to make some engine mods in the future. But first, questions...

Will AM wheels that are heavier than the OE negatively affect the dyno numbers? Should I mount the OE wheels for the dyno run?

Also, besides putting the car in Dyno mode, are there any other precautions?

Thanks,

Dan

May 5, 2006 | 10:57 AM

Yellow R1

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Joined: Jun 2004

Posts: 770

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From: Silicon Valley, CA

'93 RX-7, SLK55

Quote:

Originally Posted by dsb

Hi Dan.

No noticable impact of using lighter weight rims/tires on a dyno - just does not show up since the car is on a "roll" & the delta in this scenerio is likely within a few Hp. Less unsprung weight DOES provide a benefit, just a not noticable one on a roll/dyno. I know it seems counterintuitive, but that is what I have read on a few forums - like the Vette forum for example.

You should get between 295 - 305 rwhp baseline. Just make sure the car has access to good airflow via a strong fan & its preferabley cool weather (60 - 70s is optimal). A good 4th gear pull works well for the 7G. Post results if you get the chance. See ya!

-Matt

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