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S/C Shifting on the stop?
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DRR Elite
posted
Making more power now than I used to. For dragsters over 1000 hp, is shifting on the stop the way to go? Is it particularly hard on anything? Build a lot of converter heat? I'm a little concerned about what will happen when the power comes on in first gear.


Foxtrot Juliet Bravo
 
Posts: 6461 | Location: Illinois | Registered: July 08, 2004Reply With QuoteReport This Post
DRR Pro
Picture of rusty
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just shift right after flash or in that area and it will be fine.too soon and rpm will drop too much.too late and oposite effect.lots of variables of course,stop rpm ,converter ect


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1.036, 6.16@ 224

 
Posts: 1472 | Location: texas | Registered: February 17, 2006Reply With QuoteReport This Post
DRR Sportsman
Picture of diceman1530
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I shifted at .5 going 8.90 181/182


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Fordyce Motorsports
 
Posts: 263 | Location: Williamstown, NJ | Registered: November 20, 2009Reply With QuoteReport This Post
DRR Sportsman
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As others have said .5 works for me and I usually shift on time at 7.75 or faster.


Denis LeBlanc

 
Posts: 508 | Location: Manchester, NH | Registered: February 03, 2006Reply With QuoteReport This Post
DRR Elite
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.5 seems pretty popular. Thank you!


Foxtrot Juliet Bravo
 
Posts: 6461 | Location: Illinois | Registered: July 08, 2004Reply With QuoteReport This Post
DRR Pro
Picture of Don Higgins Crew Chief Pro Software
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I shift at .300, quicker is better for better RPM rise control. Each car is different though.

I see nothing wrong with .500 but when I did that my RPM would rise until it shifted. I always try to eliminate every negative variable.



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Posts: 1389 | Location: Bartonville Illinois | Registered: October 18, 2002Reply With QuoteReport This Post
DRR Top Comp
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I shift at .4 seems to work.

BTW, Don I will call you tomorrow.


Clowns to the left of me, Jokers to the right. Here I am.......
 
Posts: 5338 | Location: stuck in the middle with you! | Registered: March 11, 2002Reply With QuoteReport This Post



DRR Trophy
Picture of sst5167
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I always put my shift timer .2 AFTER timer one. For example....
Timer 1- .1
Shift - .3


Mike Boehner
 
Posts: 93 | Location: Lake Havasu City, AZ | Registered: January 19, 2011Reply With QuoteReport This Post
DRR Sportsman
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.5 here seems to work with my 7.70 car
 
Posts: 401 | Location: Vinita, OK | Registered: April 29, 2003Reply With QuoteReport This Post
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