DA, does it matter, it sure does, timing, yes - Page 2

PRAY · 05-15-2017, 09:24 AM

Airdensityonline is way better than Drag times. You have to make sure that the track altitude is correct and Dragtimes has some of them incorrect. But there is no better way then a Kestrel. You just have to let it settle and keep the wind off of it. My usual track sits next to the local airport so I log the airport weather system through USairnet.com, the Kestrel and Airdensityonline. Between the three you can get the accurate DA. The Kestrel doesn't agree with Airdensityonline most of the time by a couple hundred feet. It seems that going up on DA above say -500 has the greatest effect. I think at a certain point -DA stops being as big of a factor as +DA. I feel that at a certain point of -DA there just isn't much to be gained. You can only run so much timing and lean the fuel out so much to take advantage.

laynlo15 · 05-15-2017, 09:39 PM

I have a lot of drag racing to do even this summer. I have much invested and Meth is going on Wednesday and tuning this weekend for it. I have street takeover on the 27th and plan on running 10.40 or 10.50s that weekend. I don't think I'll have to worry about getting kicked out at this event at gateway. I'm going to turn it loose with the help of Mike from Magnuson, he's tuning it this weekend and I might even throw in the tranny tune a guy helped me with. I think he has a pretty fast Camaro also. Pretty sure he knows who I'm talking about. Thx Brett

PRAY · 05-16-2017, 04:42 AM

Quote:

Originally Posted by laynlo15

I have a lot of drag racing to do even this summer. I have much invested and Meth is going on Wednesday and tuning this weekend for it. I have street takeover on the 27th and plan on running 10.40 or 10.50s that weekend. I don't think I'll have to worry about getting kicked out at this event at gateway. I'm going to turn it loose with the help of Mike from Magnuson, he's tuning it this weekend and I might even throw in the tranny tune a guy helped me with. I think he has a pretty fast Camaro also. Pretty sure he knows who I'm talking about. Thx Brett

Go get'em buddy. Can't wait to see your final numbers all dialed in and with some decent weather. If anyone is going to get the most out of it you will. Good luck with your races.

laynlo15 · 05-16-2017, 05:29 AM

Thx Brett, I'll do my best as I always have.

Fraxum · 05-16-2017, 11:32 AM

So right now 5/16/2017 12:30 EDST noonish for Atco NJ:

Drag times: 809 (11:54 AM)

AD Online: 1,061 (Now I suppose)

Maybe they are close as Atco is only 33 feet above sea level. Enjoy the Atco air while you can. Soon you will need a boat.

laynlo15 · 05-16-2017, 07:39 PM

Those are good numbers for sure. Anything below 1500 is not bad. The 2700 plus I was encountering slows any car down, NA more then SC cars.

DenverTaco07 · 05-16-2017, 08:50 PM

http://www.weather.gov

https://wahiduddin.net/calc/calc_da_rh.htm

EFI Tuning · 05-26-2017, 02:03 PM

For you iPhone users get Density Alt+. It is worth the couple of bucks. It will use GPS to get your location and elevation. Easier and quicker than any other solution I've found.

05-15-2017, 09:24 AM	#15
PRAY Drives: 2016 2SS Join Date: Jul 2016 Location: Sanford NC Posts: 2,766	Airdensityonline is way better than Drag times. You have to make sure that the track altitude is correct and Dragtimes has some of them incorrect. But there is no better way then a Kestrel. You just have to let it settle and keep the wind off of it. My usual track sits next to the local airport so I log the airport weather system through USairnet.com, the Kestrel and Airdensityonline. Between the three you can get the accurate DA. The Kestrel doesn't agree with Airdensityonline most of the time by a couple hundred feet. It seems that going up on DA above say -500 has the greatest effect. I think at a certain point -DA stops being as big of a factor as +DA. I feel that at a certain point of -DA there just isn't much to be gained. You can only run so much timing and lean the fuel out so much to take advantage. __________________ 2016 2SS. H/C SBE 1.37 60ft, 6.36@109.49, 9.97@136+. Nuff Said.

05-15-2017, 09:39 PM	#16
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	I have a lot of drag racing to do even this summer. I have much invested and Meth is going on Wednesday and tuning this weekend for it. I have street takeover on the 27th and plan on running 10.40 or 10.50s that weekend. I don't think I'll have to worry about getting kicked out at this event at gateway. I'm going to turn it loose with the help of Mike from Magnuson, he's tuning it this weekend and I might even throw in the tranny tune a guy helped me with. I think he has a pretty fast Camaro also. Pretty sure he knows who I'm talking about. Thx Brett __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-16-2017, 05:29 AM	#18
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Thx Brett, I'll do my best as I always have. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-16-2017, 11:32 AM	#19
Fraxum Drives: a M6 LT1 ordered From Becky!!! Join Date: Jan 2010 Location: NJ Posts: 7,520	So right now 5/16/2017 12:30 EDST noonish for Atco NJ: Drag times: 809 (11:54 AM) AD Online: 1,061 (Now I suppose) Maybe they are close as Atco is only 33 feet above sea level. Enjoy the Atco air while you can. Soon you will need a boat. __________________ "Democracy Dies in Darkness" My LT1 Keeper ..... ..... My Car Blog CarPlayList, a free App to build USB and Android Music drives.

05-16-2017, 07:39 PM	#20
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Those are good numbers for sure. Anything below 1500 is not bad. The 2700 plus I was encountering slows any car down, NA more then SC cars. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-16-2017, 08:50 PM	#21
DenverTaco07 Drives: 2017 SS 1LE, 2017 Volt, 2013 Pilot Join Date: May 2014 Location: Colorado Posts: 4,274	http://www.weather.gov https://wahiduddin.net/calc/calc_da_rh.htm __________________ 2017 SS 1LE \| HBM \| Vortech V3-Si supercharger (620RWHP and 575ft lbs) \| PDR \| Black Bowties \| Illuminated Front Black Bowtie \| Illuminated Door Sills \| Smoked Tails \| vented seats mod

05-26-2017, 02:03 PM	#22
EFI Tuning Drives: 2016 Camaro SS Join Date: Oct 2016 Location: Mount Dora, FL Posts: 792	For you iPhone users get Density Alt+. It is worth the couple of bucks. It will use GPS to get your location and elevation. Easier and quicker than any other solution I've found.

User Name		Remember Me?
Password