Difference between 1/8mph and 1/4mph Question.
Thread Starter
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Difference between 1/8mph and 1/4mph Question.
I have been saving my slips for comparison.
I have 350RWP and Tq along with a 6 speed and 4.10 gears.. My problem is launching the beast and getting it all to the track in 1st gear.
I can't get under 2.0 60' and usually end up 12.9 to 13.0 at 112-113mph.
I realize doing this on Street tire is futile but I plan to get a set of DR's shortly..
I noticed a trend on my sheets that was surprising.. I started analyzing the MPH gain may car makes from the 1/8 mile to the 1/4 mile. I am assuming at that point there is no more tire slip.
I have consistantly produced anywhere from 21 to a 25mph gain.
In 2 cases where I knew the person I was racing against with significantly more HP I was the same or better on the this gain..
Case 1 - Other guy had 385rwhp, Auto 3.73 gears He end up with 12.0 and had a 22.95mph gain and I end up with 13.0 with a 24.72mph gain.
I can even see in a video where I am reeling him in.
Case 2 - Other guy 460rwhp, Auto 3.42 gears He ends up with a 12.01 and had a 25.33mph gain. I end up with a 13.0 again with a 23.31mph gain.
I guess my point is that I THINK I have an 11 second car IF I can lay 1st gear to the track at WOT... All my problems seem to be at the little end...
I have 350RWP and Tq along with a 6 speed and 4.10 gears.. My problem is launching the beast and getting it all to the track in 1st gear.
I can't get under 2.0 60' and usually end up 12.9 to 13.0 at 112-113mph.
I realize doing this on Street tire is futile but I plan to get a set of DR's shortly..
I noticed a trend on my sheets that was surprising.. I started analyzing the MPH gain may car makes from the 1/8 mile to the 1/4 mile. I am assuming at that point there is no more tire slip.
I have consistantly produced anywhere from 21 to a 25mph gain.
In 2 cases where I knew the person I was racing against with significantly more HP I was the same or better on the this gain..
Case 1 - Other guy had 385rwhp, Auto 3.73 gears He end up with 12.0 and had a 22.95mph gain and I end up with 13.0 with a 24.72mph gain.
I can even see in a video where I am reeling him in.
Case 2 - Other guy 460rwhp, Auto 3.42 gears He ends up with a 12.01 and had a 25.33mph gain. I end up with a 13.0 again with a 23.31mph gain.
I guess my point is that I THINK I have an 11 second car IF I can lay 1st gear to the track at WOT... All my problems seem to be at the little end...
Le Mans Master
Joined: Jun 2003
Posts: 5,446
Likes: 2
From: Not Correctly Restored Stingray Fla.
Get an AUTOMATIC TRANSMISSION !!!! 
For years I had a an M-20 with 3.73 rear. The mph was always up around 116-117 mph (I knew I had an 11 second motor). I wanted 11's sooooo bad. But it was very hard to get under 2.0 60' without breaking something. I was running 12.1s/12.2s consistantly when I didn't break something in the rearend. Had a TH350 "built" and stepped up to a 4.11 rear and ran a best of 11.52. The 4.11 rear took away some of the drivability. Then had a 700R4 "built" and now my best stands at 11.48.
For years I had a an M-20 with 3.73 rear. The mph was always up around 116-117 mph (I knew I had an 11 second motor). I wanted 11's sooooo bad. But it was very hard to get under 2.0 60' without breaking something. I was running 12.1s/12.2s consistantly when I didn't break something in the rearend. Had a TH350 "built" and stepped up to a 4.11 rear and ran a best of 11.52. The 4.11 rear took away some of the drivability. Then had a 700R4 "built" and now my best stands at 11.48.
Thread Starter
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Originally Posted by LOTAHP
Get an AUTOMATIC TRANSMISSION !!!! For years I had a an M-20 with 3.73 rear. The mph was always up around 116-117 mph (I knew I had an 11 second motor). I wanted 11's sooooo bad. But it was very hard to get under 2.0 60' without breaking something. I was running 12.1s/12.2s consistantly when I didn't break something in the rearend. Had a TH350 "built" and stepped up to a 4.11 rear and ran a best of 11.52. The 4.11 rear took away some of the drivability. Then had a 700R4 "built" and now my best stands at 11.48.
For years I had a an M-20 with 3.73 rear. The mph was always up around 116-117 mph (I knew I had an 11 second motor). I wanted 11's sooooo bad. But it was very hard to get under 2.0 60' without breaking something. I was running 12.1s/12.2s consistantly when I didn't break something in the rearend. Had a TH350 "built" and stepped up to a 4.11 rear and ran a best of 11.52. The 4.11 rear took away some of the drivability. Then had a 700R4 "built" and now my best stands at 11.48.My HP is still low enough that I should not break anything on the rear with DR's What do you think I should be able to pull with my setup and DR's?
Le Mans Master
Joined: Nov 2000
Posts: 7,294
Likes: 1
From: Coral Springs Florida
Originally Posted by chuckster
My problem is launching the beast and getting it all to the track in 1st gear.
I realize doing this on Street tire is futile but I plan to get a set of DR's shortly..
I realize doing this on Street tire is futile but I plan to get a set of DR's shortly..
Thread Starter
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Originally Posted by vstella
I think you answered your own question....
But seriously.. The question was.. CAN I HIT 11.99 with Drag Radials?
If I can leave in first gear @ WOT and stay there without slippage or wheel hop till I hit 6200rpm I really think this car will pull like a freight train.
By the way bro.. you are still my idol. you got me started at the track.. incidently, you were the guy I was referring to in case number one.. I still have my Time slip and the video you sent me..
Le Mans Master
Joined: Nov 2000
Posts: 7,294
Likes: 1
From: Coral Springs Florida
Originally Posted by chuckster
.. CAN I HIT 11.99 with Drag Radials?
By the way bro.. you are still my idol. you got me started at the track..
By the way bro.. you are still my idol. you got me started at the track..
Your idol..? :bb :bb ..Oh my :bb :bb
If your running mid-hi 12's with street tires ...then DR's will hopefully net you a 1.6X - 1.7X short time and you should realize much lower overall e.t's...11's? ....some good weather and quick shifting ..I guess it's possible
Practice..Practice...PracticeA good set of DR's or better yet a set of E.T streets will be the best bang for the buck for you now Charlie
All the Hp/TQ in the world is not very productive until you get it to the ground...nuff said!
See you at the CC 2/5
Thread Starter
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Originally Posted by c5man99
Charley,
It's like the old joke, "How do you get to Carnegy Hall?"...................
See you guy's on the 5th.
It's like the old joke, "How do you get to Carnegy Hall?"...................
See you guy's on the 5th.
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