My first dyno run, some advice please

[Lord Hellcat]

With all this Covid stuff I have had a nightmare finding anyone willing to dyno the Hellcat.
I have approached some well known (apparently) tuning companies and either they do not want to know or they are just too busy.
Well finally I have found a company willing to help.
Apart from race prep they specialize as an independent Mclaren service centre but they have a dyno with plenty of airflow which should help keep the hellcat safe.
So my question is.
Is it safe to just push and hold the traction control button to disable the traction control or do I need to pull the fuse prior to the run.
If so which fuse do I need to pull.
Last question. I presume the power run should be done in 5th gear.
Can someone confirm that is correct.
many thanks

 

[CatDaddyB5]

With all this Covid stuff I have had a nightmare finding anyone willing to dyno the Hellcat.
I have approached some well known (apparently) tuning companies and either they do not want to know or they are just too busy.
Well finally I have found a company willing to help.
Apart from race prep they specialize as an independent Mclaren service centre but they have a dyno with plenty of airflow which should help keep the hellcat safe.
So my question is.
Is it safe to just push and hold the traction control button to disable the traction control or do I need to pull the fuse prior to the run.
If so which fuse do I need to pull.
Last question. I presume the power run should be done in 5th gear.
Can someone confirm that is correct.
many thanks

When I did the dyno pulls on my Charger Hellcat, put it in Track mode, and held down the TC button to turn it off. Did one pull in 4th gear and one in 6th gear. The dyno I used was a Mainline ProHub dyno.


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[ChargerChallenger]

When I did the dyno pulls on my Charger Hellcat, put it in Track mode, and held down the TC button to turn it off. Did one pull in 4th gear and one in 6th gear. The dyno I used was a Mainline ProHub dyno.


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Good advice what rear End Ratio do you have since this could change preferences of the correct trans gear.

 

[CatDaddyB5]

Good advice what rear End Ratio do you have since this could change preferences of the correct trans gear.

My car is 100% stock, so it has the 2.62!


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[John G.]

I haven't dynoed my 'cat, but I did dyno my 392 and I did not pull the fuse, just turned the TC off. Also, I've heard you do the pull in the 1:1 gear, which in the case of the A8 is 6th.