How do these corrected times sound?
08-24-2003, 08:37 PM
#16
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Join Date: May 2003
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Can i take teh 0 DA times and multiply them by these correction factors to get the altitude times?
http://www.nhra.com/2002/sportsman/n...ry/021501.html
10.73@120.29 0 DA. at 2000 ft would be 10.97@117.62
who knows....
http://www.nhra.com/2002/sportsman/n...ry/021501.html
10.73@120.29 0 DA. at 2000 ft would be 10.97@117.62
who knows....
08-24-2003, 11:57 PM
#17
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Location: Cincinnati, Ohio
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Originally posted by thewinner
Ya, im not really putting any money into the 10 bolt, rather saving money for a 12bolt and dealing with what i have. But soon i am going to get a strange, cause i can get some good deals on new ones. Planning on 4.11s and ET streets, what size ET streets will fit 16" wheels? or do they only have one 16" size? Wonder what the gears will do to my shifting, since im going through the finish at the top of 3rd gear?
But, if i find a place with a close to zero DA it theoretically should run 10s?
You say mph is skewed b/c of spinning launch, should it be higher or lower?
Ya, im not really putting any money into the 10 bolt, rather saving money for a 12bolt and dealing with what i have. But soon i am going to get a strange, cause i can get some good deals on new ones. Planning on 4.11s and ET streets, what size ET streets will fit 16" wheels? or do they only have one 16" size? Wonder what the gears will do to my shifting, since im going through the finish at the top of 3rd gear?
But, if i find a place with a close to zero DA it theoretically should run 10s?
You say mph is skewed b/c of spinning launch, should it be higher or lower?
410s will put you pretty far into 4th gear. I have 4.33s and am trapping in 4th at about 6400rpm.
AS for what it will run, i say the best you will get out of it anywhere, anyplace, is 11.4-11.5.
AS for spinning on the launch, the more you spin, the higher you trap, but the worse the ET. The harder the car hooks, the lower the trap but the better ET
08-25-2003, 12:25 AM
#19
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No, right. To a certain expent you want a tad of wheel spin (John lingenfelter says 10%) for optimal ET, but if you spin you will trap higher than if you hook. Guess you have never run sticky tires eh?
08-25-2003, 12:30 AM
#20
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Location: AZ
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Originally posted by atljar
No, right. To a certain expent you want a tad of wheel spin (John lingenfelter says 10%) for optimal ET, but if you spin you will trap higher than if you hook. Guess you have never run sticky tires eh?
No, right. To a certain expent you want a tad of wheel spin (John lingenfelter says 10%) for optimal ET, but if you spin you will trap higher than if you hook. Guess you have never run sticky tires eh?
eh?
I have ALWAYS trapped higher running on ET Streets than on street tires.
That is a flawed theory.
08-25-2003, 12:41 AM
#21
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I know there are certain cases where spinning has yielded higher trap speeds, but it is a rarity in the real world.
I have consistently trapped 1-2 mph higher running on ET Streets (13-14 PSI) than on street tires.
Cutting a better 60' means you are leaving harder and in turn accelerating faster - somewhat of a slingshot effect.
People will argue that spinning allots you more time to accelerate because your ET will be slower - that is NOT true IMO...the distance being covered is the same regardless of how much you spin or hook, but hooking makes the car accelerate harder/faster, increasing your speed through the traps.
From my personaly experience, as well as many of my friends' experiences, hooking increases mph.
I have consistently trapped 1-2 mph higher running on ET Streets (13-14 PSI) than on street tires.
Cutting a better 60' means you are leaving harder and in turn accelerating faster - somewhat of a slingshot effect.
People will argue that spinning allots you more time to accelerate because your ET will be slower - that is NOT true IMO...the distance being covered is the same regardless of how much you spin or hook, but hooking makes the car accelerate harder/faster, increasing your speed through the traps.
From my personaly experience, as well as many of my friends' experiences, hooking increases mph.
08-25-2003, 12:55 AM
#22
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Location: Cincinnati, Ohio
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At least you have some data to back up your point, and i respect your real world experience. I on the other hand have the exact opposite experience. I run Nitto DR as a street tire, and 26" ET streets for slicks. I know there is a SLIGHT gearing difference between the tires, but i consitently will be a few mph slower on the ET streets, but also a few tenths faster.
Last edited by atljar; 08-25-2003 at 12:58 AM.
08-25-2003, 01:09 AM
#23
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Originally posted by atljar
At least you have some data to back up your point, and i respect your real world experience. I on the other hand have the exact opposite experience. I run Nitto DR as a street tire, and 26" ET streets for slicks. I know there is a SLIGHT gearing difference between the tires, but i consitently will be a few mph slower on the ET streets, but also a few tenths faster.
At least you have some data to back up your point, and i respect your real world experience. I on the other hand have the exact opposite experience. I run Nitto DR as a street tire, and 26" ET streets for slicks. I know there is a SLIGHT gearing difference between the tires, but i consitently will be a few mph slower on the ET streets, but also a few tenths faster.
08-25-2003, 01:35 AM
#25
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Location: Cincinnati, Ohio
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Yes you can get the 26" tires to fit 16" rims.
Bowtie-
I have to go back and dig up some timeslips from last year where i ran both tires on the same day to see some 1/8 mile stuff. With the new set up i only have 1 pass on the DR, and it was on a totally different day than the ET street times with different weather paterns etc, but these slips show a little of both our points. Also shift points are no where near consistent yet with the cam, still feeling it out. Like i said, will try to find some of last years slips
drag radial (70º, low humidity, low DA)
60 = 1.950
1/8 = 8.377
mph = 87.59
1/4 = 12.861
mph = 113.86
ET streets (83º, humid, really high DA)
60 = 1.988
1/8 = 8.358
mph = 87.94
1/4 = 12.885
mph = 109.78
ET streets (83º, humid, really high DA) (same day as above)
60 = 1.904
1/8 = 8.331
mph = 85.10
1/4 = 12.856
mph = 106.95
Bowtie-
I have to go back and dig up some timeslips from last year where i ran both tires on the same day to see some 1/8 mile stuff. With the new set up i only have 1 pass on the DR, and it was on a totally different day than the ET street times with different weather paterns etc, but these slips show a little of both our points. Also shift points are no where near consistent yet with the cam, still feeling it out. Like i said, will try to find some of last years slips
drag radial (70º, low humidity, low DA)
60 = 1.950
1/8 = 8.377
mph = 87.59
1/4 = 12.861
mph = 113.86
ET streets (83º, humid, really high DA)
60 = 1.988
1/8 = 8.358
mph = 87.94
1/4 = 12.885
mph = 109.78
ET streets (83º, humid, really high DA) (same day as above)
60 = 1.904
1/8 = 8.331
mph = 85.10
1/4 = 12.856
mph = 106.95
Last edited by atljar; 08-25-2003 at 01:40 AM.
08-25-2003, 04:06 PM
#27
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Location: Cincinnati, Ohio
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Yes i tried to point out about the weather, that plays a HUGE factor in the times. Also those were all shifted at different rpms etc, waiting on the shift light in the mail to nail it down and get something consistent. Also need to work on the launch. Launching a cammed car is a totally new ballgame from last year exhaust/gears car (1.7 60's)
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