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-   -   ET with and without wheelie. (https://classracer.com/classforum/showthread.php?t=88343)

Stan Weiss 10-09-2024 04:30 PM

Re: ET with and without wheelie.
 
Quote:

Originally Posted by Frank Castros (Post 703929)
IMHO the sixty foot ET and trap MPH are the measure of your race car.


That does depend. Over 10 years ago I was doing a simulation of a PSB with some help from George Bryce. I was able to get everything almost dead on. I ask George about the fact that I ran out of RPM before the finish line. He said he did too, but he gave up some MPH because it ran a lower ET.


Stan

Mike Pearson 10-09-2024 04:35 PM

Re: ET with and without wheelie.
 
In a low HP combo the wheelie is similar to wheel speed. It helps get the engine to its max power quicker. The higher HP and bigger Cu Inch combos might be quicker by keeping the front end down. The car will be more consistent with the wheels up and no spin/wheel speed. Stock and super stock cars are set up to dead hook. Most are on radials.

Hacksaw 10-09-2024 04:46 PM

Re: ET with and without wheelie.
 
Quote:

Originally Posted by GUMP (Post 703903)
My perspective is that you need to get all the weight on the rear tire. Since we run performance based classes, we are trying to use ALL the power. On marginal tracks, you can have a hard time if the front end is tied down too much without some kind of power management.

From experience, moderate wheelies don't slow you down at all. I feel that is because aero is not a factor. A monster wheelie will absolutely burn a bunch of ET...

My theory is: Race cars that have quicker ets doing monster wheelies is because, when the car begins to come down it essentially "throws" the car forward. This applies to cars with high ground clearance that pitch and rotate and relatively moderate power.

1320racer 10-09-2024 04:49 PM

Re: ET with and without wheelie.
 
Your theory is malarkey

Billy Nees 10-09-2024 04:59 PM

Re: ET with and without wheelie.
 
Quote:

Originally Posted by Dan Bennett (Post 703938)
In short, the people who are saying different vehicles need different things have helped me get a grip and I thank every one of them.

Ya know Dan, it's a funny thing that you put it that way. In a Stocker that can use a Powerglide or a 3-speed, with the 'glide the 60' times are almost irrelevant. They're almost a residual number. The car needs to be set-up to run it's best E.T. and whatever the 60' time is, it is. One of the "funniest" things ever said to me about "tuning" a car was by the late Jim Beattie; "Nees, is there somebody standing on the 60' clock handing out $100 bills? Then don't worry about it".
Now a 3-speed Stocker is a totally different animal. From my experience, what ever you can do to get a 3-speed car to the 330' clock faster will translate to better E.T.s all the way down the track.

BobbyH 10-09-2024 05:14 PM

Re: ET with and without wheelie.
 
Great thread! Do these theories/opinions/physics also apply the same to a STICK car?

1320racer 10-09-2024 05:27 PM

Re: ET with and without wheelie.
 
Quote:

Originally Posted by Billy Nees (Post 703948)
From my experience, what ever you can do to get the car to the 330' clock faster will translate to better E.T.s all the way down the track.

again, it all starts and ends with 60 foot and yes, I have run both a powerglide and a turbo400 in the same car!

Adger Smith 10-09-2024 06:22 PM

Re: ET with and without wheelie.
 
We have had a lot of good info passed around in this thread...
This thread brought back an old memory from when Lee Shepherd was racing the Shepherd/Morrison Modified Production Chevy 11 wagon at my track in Whitehouse Texas. This is back before reaction times and we only had 60' and 1/4 mile times. I ask him if the 60' was the most important part of the race track. His answer was NO...
He then said "The First Inch" is most important
Think about it!

1320racer 10-09-2024 09:06 PM

Re: ET with and without wheelie.
 
He was wrong!

L.Fite 10-09-2024 10:01 PM

Re: ET with and without wheelie.
 
How dare you blaspheme Lee Shepherd...
Them there is fightin' words!...


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