Reaction times went bad ?

Rich Biebel · 05-26-2008, 07:43 PM

Nevermind

Charlie Yannetti · 05-28-2008, 05:33 PM

Hey Rich........ I know you said nevermind, but I would like to know which way your reaction times went bad......... I was .009 and .010 for my S/G time shots......... when I hit 2nd round, I put another nickel in the box and came up -.006.......... I didn't think I was that pumped up

Rich Biebel · 05-28-2008, 07:19 PM

Charlie...... slow by a lot....I might miss one....but not 4 in a row! Earlier I was .00 and 2 in a row and that felt about right to me....something with my car....maybe tires? I just don't know......Rich

racerhead · 05-28-2008, 08:33 PM

This is where a Vehicle reaction timer can help. It doesn't tell you everything, but (at least with the computech model) you get the time from button to the vehicle reaching 0.8g's, about 8 inches for most cars. run to run, that can be valuable data when something goes wrong, and it's much more precise than just taking the 60' time.

I realize without a baseline, it won't help you now, but it might be worth it in the future.

Bruce Deveau

Rich Biebel · 05-28-2008, 09:14 PM

Bruce, I had one of those at one time in my last dragster. I did not find the number it spit out to be very meaningfull. I have experienced poor .400 tree RT's in the past and tires was the cause on more than one occasion. One year in S/G at the Summernationals...my RT's faded to .08's...two in a row but I was lucky enough to still win.....immediately bought fresh tires and had them mounted...next run .409.......lost with a .420 something...thanks to NHRA...they messed with the starting line and scraped it a ways out.....cost me a chance at winning two years in a row as I spun a bit after the hit......

sc1153 · 06-07-2008, 11:33 AM

what box do u have in the car?

Rich Biebel · 06-07-2008, 10:10 PM

K&R Chris....Bracket raced today....RT's all good. 60's all within .01 on 4 runs....4th run.....trans broke!! I'm guessing input shaft....maybe that had something to do with my string of poor RT's after rd 1 at MG....today.....501 .509 .515 524....Swapped tires side to side before todays race and this was in 4000 ft air......whew thats hot!

05-26-2008, 07:43 PM	#1
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,312 Likes: 25 Liked 543 Times in 212 Posts	Nevermind __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 05-27-2008 at 10:41 AM.

05-28-2008, 05:33 PM	#2
Charlie Yannetti Senior Member Join Date: Jan 2005 Location: Alpine, NJ Posts: 566 Likes: 187 Liked 191 Times in 82 Posts	Re: Reaction times went bad ? Hey Rich........ I know you said nevermind, but I would like to know which way your reaction times went bad......... I was .009 and .010 for my S/G time shots......... when I hit 2nd round, I put another nickel in the box and came up -.006.......... I didn't think I was that pumped up

05-28-2008, 07:19 PM	#3
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,312 Likes: 25 Liked 543 Times in 212 Posts	Re: Reaction times went bad ? Charlie...... slow by a lot....I might miss one....but not 4 in a row! Earlier I was .00 and 2 in a row and that felt about right to me....something with my car....maybe tires? I just don't know......Rich __________________ Rich Biebel S/C 1479 Stock 147R

05-28-2008, 08:33 PM	#4
racerhead Member Join Date: Aug 2007 Posts: 187 Likes: 0 Liked 0 Times in 0 Posts	Re: Reaction times went bad ? This is where a Vehicle reaction timer can help. It doesn't tell you everything, but (at least with the computech model) you get the time from button to the vehicle reaching 0.8g's, about 8 inches for most cars. run to run, that can be valuable data when something goes wrong, and it's much more precise than just taking the 60' time. I realize without a baseline, it won't help you now, but it might be worth it in the future. Bruce Deveau

05-28-2008, 09:14 PM	#5
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,312 Likes: 25 Liked 543 Times in 212 Posts	Re: Reaction times went bad ? Bruce, I had one of those at one time in my last dragster. I did not find the number it spit out to be very meaningfull. I have experienced poor .400 tree RT's in the past and tires was the cause on more than one occasion. One year in S/G at the Summernationals...my RT's faded to .08's...two in a row but I was lucky enough to still win.....immediately bought fresh tires and had them mounted...next run .409.......lost with a .420 something...thanks to NHRA...they messed with the starting line and scraped it a ways out.....cost me a chance at winning two years in a row as I spun a bit after the hit...... __________________ Rich Biebel S/C 1479 Stock 147R

06-07-2008, 11:33 AM	#6
sc1153 Member Join Date: Jun 2005 Location: Parlin, NJ Posts: 420 Likes: 0 Liked 0 Times in 0 Posts	Re: Reaction times went bad ? what box do u have in the car? __________________ Chris DePascale S/ST 1531 & S/C 1153....Addicted Racing Jad153@aol.com

06-07-2008, 10:10 PM	#7
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,312 Likes: 25 Liked 543 Times in 212 Posts	Re: Reaction times went bad ? K&R Chris....Bracket raced today....RT's all good. 60's all within .01 on 4 runs....4th run.....trans broke!! I'm guessing input shaft....maybe that had something to do with my string of poor RT's after rd 1 at MG....today.....501 .509 .515 524....Swapped tires side to side before todays race and this was in 4000 ft air......whew thats hot! __________________ Rich Biebel S/C 1479 Stock 147R