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how much gained from shallow staging #1229708 05/08/12 06:42 PM 05/08/12 06:42 PM
Joined: May 2004 Posts: 3,210 robin hood country deaks OP master
deaks OP master Joined: May 2004 Posts: 3,210 robin hood country	Just curious how much et and mph can be gained through shallow staging, do slow cars pick up more than faster ones? Mick 69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36

Re: how much gained from shallow staging [Re: deaks] #1229709 05/08/12 07:02 PM 05/08/12 07:02 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	The size of the front tires is going to have a major effect on that... cant say if a slow car or fast car with everything being the same will do better... if all was equal I would think the percentage of change would be the same or very close

Re: how much gained from shallow staging [Re: deaks] #1229710 05/08/12 08:22 PM 05/08/12 08:22 PM
Joined: Sep 2007 Posts: 427 Cascade, CO reknapp52 mopar
reknapp52 mopar Joined: Sep 2007 Posts: 427 Cascade, CO	I think .04 to .05 in my car, 2150 lbs, runs 9.0 off the stop. Don't see much change in MPH. 7197698-0608-00094.jpg (44 downloads)

Re: how much gained from shallow staging [Re: MR_P_BODY] #1229711 05/08/12 08:31 PM 05/08/12 08:31 PM
Joined: Oct 2007 Posts: 410 Laredo, Texas USA H hugo mopar
hugo mopar H Joined: Oct 2007 Posts: 410 Laredo, Texas USA	does a bigger tire hrlp you?

Re: how much gained from shallow staging [Re: hugo] #1229712 05/08/12 08:36 PM 05/08/12 08:36 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: does a bigger tire hrlp you? Bigger tire gives you more roll out... longer time in lights

Re: how much gained from shallow staging [Re: hugo] #1229713 05/08/12 08:39 PM 05/08/12 08:39 PM
Joined: Sep 2007 Posts: 427 Cascade, CO reknapp52 mopar
reknapp52 mopar Joined: Sep 2007 Posts: 427 Cascade, CO	I've never experimented with a larger tire on my car, but the added roll-out would lower your E.T. and would also adversely affect your reaction time. 7197718-0608-00094.jpg (40 downloads)

Re: how much gained from shallow staging [Re: deaks] #1229714 05/08/12 11:11 PM 05/08/12 11:11 PM
Joined: Aug 2003 Posts: 43,305 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,305 Bend,OR USA	Quote: Just curious how much et and mph can be gained through shallow staging, do slow cars pick up more than faster ones? Mick My Duster will slow down a tenth at Las Vegas when it runs in the mid tens at 125+ MPH going in shallow versus putting out the top light all the way, not sure on howm much the MPH changes. that is with 165SR15 street tires on the front IHTH Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: how much gained from shallow staging [Re: deaks] #1229715 05/08/12 11:21 PM 05/08/12 11:21 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Just curious how much et and mph can be gained through shallow staging, do slow cars pick up more than faster ones? Mick Are you asking shallow vs deep staging or shallow vs a normal staging

Re: how much gained from shallow staging [Re: MR_P_BODY] #1229716 05/09/12 09:16 AM 05/09/12 09:16 AM
Joined: May 2004 Posts: 3,210 robin hood country deaks OP master
deaks OP master Joined: May 2004 Posts: 3,210 robin hood country	Either, i was just curious, as to peoples findings. I was prompted to ask the question after reading the setup instructions on the portatree. Cant beat the good old internet. LOL Mick 69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36

Re: how much gained from shallow staging [Re: deaks] #1229717 05/09/12 09:48 AM 05/09/12 09:48 AM
Joined: Dec 2005 Posts: 293 Kansas City Metro M mbogina enthusiast
mbogina enthusiast M Joined: Dec 2005 Posts: 293 Kansas City Metro	A general rule of thumb is that 1 inch of rollout is roughly equivalent to .01 ET difference. this will vary slightly with slow cars vs fast cars, but still in the ballpark. Be a Rebel- Break the Laws of Physics!

Re: how much gained from shallow staging [Re: mbogina] #1229718 05/09/12 10:00 AM 05/09/12 10:00 AM
Joined: May 2004 Posts: 3,210 robin hood country deaks OP master
deaks OP master Joined: May 2004 Posts: 3,210 robin hood country	So if i was to flicker the second stage light with a 27" tyre, what would that approximately equate to. Mick 69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36

Re: how much gained from shallow staging [Re: deaks] #1229719 05/09/12 10:16 AM 05/09/12 10:16 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: So if i was to flicker the second stage light with a 27" tyre, what would that approximately equate to. Mick You would have to measure up 3" from the ground then measure the length at 3" up to see how long the tire is in that area... pressure in the tire also makes a difference... low pressure has more tire in the lights... high pressure has less... also you need to check the front end to see if you have any stagger in it... with most chassis cars we add about 3/4" to 1" of stagger to the front tires... we usually set the right side tire back

Re: how much gained from shallow staging [Re: MR_P_BODY] #1229720 05/09/12 10:57 AM 05/09/12 10:57 AM
Joined: Dec 2005 Posts: 293 Kansas City Metro M mbogina enthusiast
mbogina enthusiast M Joined: Dec 2005 Posts: 293 Kansas City Metro	This is not a tough deal to measure yourself-set a flashlight blocked 3" off the ground on the drivers side of the car, roll the car forward until the light is completely blocked by the tire. Make a reference mark on the ground. Roll the car forward until the flashlight beam just starts to be visible past the rear of the rearmost tire, make another reference mark. Measure the distance between the reference marks, that is your maximum rollout available. If that distance exceeds the distance between the prestage light and the stage lights at the dragstrip, you will "turn the top light out" during final staging. Be a Rebel- Break the Laws of Physics!

Re: how much gained from shallow staging [Re: deaks] #1229721 05/09/12 12:46 PM 05/09/12 12:46 PM
Joined: Aug 2003 Posts: 43,305 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,305 Bend,OR USA	Quote: So if i was to flicker the second stage light with a 27" tyre, what would that approximately equate to. Mick I try to go up to the starting line before they start racing to measure the roll out and to see if there is any differences from side to side. I use my foot, slide it forward from behind the pre stage light until it comes on and then slide my foot forward until the stage light comes on, make a mark at the front of mt shoe with a knife blade and then slide it forward until the prestage light goes out, make another mark It may not be the most accurate method but it lets me know if I can see any measurable differences between the sides and if it is shorter or lomger that the other tracks I race on Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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