165 mph l5p - Page 2 - Chevy and GMC Duramax Diesel Forum
2017-19 GM T-K2 Platform Performance Parts Discussion Discussion of Performance Parts For the '17 and up L5P Duramax Trucks No Advertising

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post #11 of 63 (permalink) Old 01-25-2020, 02:18 PM
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Quote:
Originally Posted by Nitro Junkie View Post
Outrage culture much, keyboard warrior?

I was referring to the cab and chassis against the air drag. The drive train, wheels, tires, etc. will have to be addressed to even get anywhere near that speed. You act like I said all he has to do is drop a 1500 HP engine in an otherwise stock truck and let 'er rip, tater chip!!!

Seeing as how he could have gotten all this done by the end of the weekend, It's a good thing you called me out for being "uniformed". You probably saved lives today!

Well, in all fairness, I just got home from work so technically, I am still "uniformed"


Hate specclcheck nextime will type it in the forum rather than Outlook that makes "smart corrections" save me most of the time.

Oh BTW never know about the hood they do buffett pretty good at high speed!

2020 GMC Denali 2500
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post #12 of 63 (permalink) Old 01-25-2020, 02:24 PM
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Just take the Chiron
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post #13 of 63 (permalink) Old 01-25-2020, 02:24 PM
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Just pointing out that I do have attention to detail. Enough that it keeps me up at night. I'd jump into a top fuel dragster given the chance but there's no way in hell I'd get in an otherwise stock truck with nothing going for it but big HP and try to go 165.
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post #14 of 63 (permalink) Old 01-25-2020, 02:26 PM
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Originally Posted by redwngr View Post
Just take the Chiron
Good example of the exponential effect of drag. I'm not 100% sure of the lower number but, the Veyron only needed about 200 HP to go 125, but to double the speed to 250, it takes 5 times the HP.
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post #15 of 63 (permalink) Old 01-25-2020, 02:26 PM
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Originally Posted by Bullwinkle View Post


I friend of mine is building a airplane in his garage, one evening while consuming adult beverages the discussion turn to the idea that my friend would need a chase truck for his planes first flight. After more adult beverages and a debate about air speed vs ground speed we determined my truck will need to go 165 MPH to keep up with the plane.



In doing a little research I found this program to figure out how much HP I will need.



Calculate HP For Speed



So here are my questions



1. Does anyone know what the actual drag of a 2019 2500HD actual is ??



2. If anyone know what the actual top speed of a stock truck is ??? If I knew that I could do the math backwards and figure the drag...



3. I am assuming that HP is what limits my top speed, but tires, and gearing might also be problems ????



If this thread sound stupid please consume some adult beverages until it make sense then reply



Thanks for any input



Bullwinkle
The answer is simple.

Get a crotch rocket, a good riding suit, helmet mounted CB radio and outrun the plane.

Have your adult beverages while you wait for the plane to catch up.

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post #16 of 63 (permalink) Old 01-25-2020, 02:28 PM
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https://www.thedrive.com/news/29651/...-top-speed-run
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post #17 of 63 (permalink) Old 01-25-2020, 02:34 PM
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Saw that right after they did it. Sign me up!!!

James May (of all people) topped out a Veyron. He said something like, when he had slowed down enough that he felt like he was about to stop, open the door and step out, he looked down and was still going like 70.
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post #18 of 63 (permalink) Old 01-25-2020, 06:20 PM
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Maybe minus the CBD enhancement in all of their beverages.

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Last edited by D_R_C; 01-25-2020 at 06:23 PM.
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post #19 of 63 (permalink) Old 01-25-2020, 06:53 PM
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Quote:
no way in hell I'd get in an otherwise stock truck with nothing going for it but big HP and try to go 165.
Looks stock to me


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post #20 of 63 (permalink) Old 01-25-2020, 11:15 PM
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Maxd out had stock axles, rear, driveshaft, etc. Built engine, built transmission, still leaf springs.
My race truck has done 146 via gps in the Corvette it beat in mexico
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