DragRaceResults.Com    Bracket Talk    Bracket Talk Forum  Hop To Forum Categories  General Discussion - by FTI    Deep Staging Question
Go
New
Find
Notify
Tools
Reply
  
Deep Staging Question
 Login/Join
 
DRR Pro
Picture of muggs
posted
Car is lower 7 sec in 1/8 mile. Pinched nerve in spine (left leg) limits ability to hold high launch rpm when footbraking. With a 1.55 60' how much reduction in reaction time can be expected going deep? Trying to be competitive at some of the high end footbrake races
 
Posts: 3078 | Location: Florida | Registered: February 21, 2005Reply With QuoteReport This Post
DRR Pro
Picture of Dave Raser
posted Hide Post
Don't know how you like to "leave" ....... but, if I had a car like that (with the numbers you provided) ...... I'd deepstage ... torque it to 2200 to 2400 rpm's ... block the first two ambers ..... and go kick azz! .... Smile

Dave
 
Posts: 1903 | Location: penna. | Registered: January 30, 2005Reply With QuoteReport This Post
DRR Sportsman
posted Hide Post
quote:
Originally posted by muggs:
Car is lower 7 sec in 1/8 mile. Pinched nerve in spine (left leg) limits ability to hold high launch rpm when footbraking. With a 1.55 60' how much reduction in reaction time can be expected going deep? Trying to be competitive at some of the high end footbrake races


You didn't say what kind of lights you are getting at high/low rpm.

If I had to guess,I would say you would probably redlight by going in deep.

That is a good thing.Then you need to see how much you are red and adjust from there.
 
Posts: 1169 | Location: Elgin,IL | Registered: February 08, 2010Reply With QuoteReport This Post
DRR Pro
Picture of muggs
posted Hide Post
I usually run No-Box. Have not footbraked steady since before 2010. Had nerve fixed in right leg in 2015. Now getting same issue in left. Car leaves hard off third bulb and tree usually competitive. Been trying to leave shallow footbrake but very erratic due to serious spasms in leg trying to hold 2500+ at line. Will try deep next race/TT and see how car performs.

Appreciate the input gentleman.
 
Posts: 3078 | Location: Florida | Registered: February 21, 2005Reply With QuoteReport This Post
DRR Sportsman
Picture of Steve from Pa
posted Hide Post
I don't know exactly what we loose 60'because we deep all the time, and its been years since we hit the shallow bulb.
Our car is very slow getting out of the beems. We 60' 1.71s deep, but runs 7.50s at 94mph. From what I remember the last time we tried shallow we were about .080 slower on the tree and about .010 quicker in the 1/8.


I sent ya a PM


Most important, keep the shiny side up
 
Posts: 798 | Location: Punxsutawney, Pa USA | Registered: February 05, 2001Reply With QuoteReport This Post
DRR Sportsman
posted Hide Post
quote:
Originally posted by Steve from Pa:
I don't know exactly what we loose 60'because we deep all the time, and its been years since we hit the shallow bulb.
Our car is very slow getting out of the beems. We 60' 1.71s deep, but runs 7.50s at 94mph. From what I remember the last time we tried shallow we were about .080 slower on the tree and about .010 quicker in the 1/8.




I sent ya a PM


I would certainly think that your car would pick up more than .01 at the 1/8 mile on a shallow stage vs a deep stage.
 
Posts: 1169 | Location: Elgin,IL | Registered: February 08, 2010Reply With QuoteReport This Post
DRR Pro
Picture of Mike Beck
posted Hide Post
Whatever you pick up in R/T going shallow to deep or vice versa, you pick up the same exact amount in the 1/8 and 1/4.
 
Posts: 1444 | Location: South River, NJ | Registered: June 19, 2007Reply With QuoteReport This Post



DRR S/Pro
Picture of Lenny5160
posted Hide Post
quote:
Originally posted by Mike Beck:
Whatever you pick up in R/T going shallow to deep or vice versa, you pick up lose the same exact amount in the 1/8 and 1/4.


Fixed for you.


Tony Leonard
 
Posts: 3151 | Location: Inver Grove Heights, MN | Registered: March 18, 2004Reply With QuoteReport This Post
DRR Pro
Picture of Mike Beck
posted Hide Post
quote:
Originally posted by Lenny5160:
quote:
Originally posted by Mike Beck:
Whatever you pick up in R/T going shallow to deep or vice versa, you pick up lose the same exact amount in the 1/8 and 1/4.


Fixed for you.


Yeah, that's what I meant to type... Smile

You gain on one end and lose it on the other.
 
Posts: 1444 | Location: South River, NJ | Registered: June 19, 2007Reply With QuoteReport This Post
DRR Pro
Picture of Jared
posted Hide Post
Using the same RPM's that you launch with shallow staging, you'll likely see around .07 gain in RT and .10 loss in ET. Unless your 'spot' is .060-.080 average on RT when you're shallow, you'll probably go red (assuming it's not worse than that range). For every .01 that you go red at the same RPM, back off 100 RPM and it should equal .01 in RT per 100 RPM. While backing down on launch RPM's, you might see a few thou per 100 RPM less launch, in ET loss.


Jared Pennington
Coalburg Racing # 1X
http://worldfootbrakechallenge.com
The Sportsman Drag Racing Podcast with Luke and Jed
 
Posts: 2025 | Location: Coalburg , Alabama | Registered: July 29, 2005Reply With QuoteReport This Post
DRR Sportsman
Picture of Steve from Pa
posted Hide Post
You guys are correct - sorry - decimal in the place .10 not .010.

We only tried it once a couple years ago. We saw .080 on the RT, but from what I remember we picked up a full .10 at the time, but we also raised out staging RPMs about 200 or 300 because we didn't think going shallow would get us were we wanted, so yes probably 070 and that down track would be very accurate.


Most important, keep the shiny side up
 
Posts: 798 | Location: Punxsutawney, Pa USA | Registered: February 05, 2001Reply With QuoteReport This Post
DRR Sportsman
Picture of Chip Horton
posted Hide Post
About 10 numbers will be very close. Good Luck!!


FIRST INDUCTEE DRR "LEGENDS HALL OF FAME" www.handhatvridepark.com
My favorite track to race at, is one with "LOTS" of chevys!! WORLD CHAMPION, Division Champion, Race of Champions, 29 Time Track Champion. Have won a NEW Car, Motorcycle, Enclosed trailer!!!

 
Posts: 516 | Location: Jesup Ga | Registered: February 07, 2000Reply With QuoteReport This Post
DRR Pro
Picture of Eman
posted Hide Post
I normally shallow stage but before I changed rear gear I had to do it. Pulled log book to check. Shallow I was .07-.08 and deep I was .002 and .009 the next 2 hits. 60' went from 1.55and 1.57 to 1.65 1.66
 
Posts: 1451 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
DRR Pro
Picture of muggs
posted Hide Post
I tried deep, car was super red. I am going to skip trying foot races until I can get surgery to fix the nerve. I can still run no-box and box.

Thanks for all the input guys.
 
Posts: 3078 | Location: Florida | Registered: February 21, 2005Reply With QuoteReport This Post



DRR Pro
Picture of Eman
posted Hide Post
I had leg problems and had to modify my brake pedal to "feel" it better to footbrake. I was going to put a brake pressure gauge in the car or a brake pressure switch with a light on the dash so I knew I had enough pressure.
 
Posts: 1451 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
  Powered by Social Strata  
 

DragRaceResults.Com    Bracket Talk    Bracket Talk Forum  Hop To Forum Categories  General Discussion - by FTI    Deep Staging Question

© DragRaceResults.com 2024