10.90 1/8 Mile Number Help...

cad · 04-05-2010, 12:19 PM

For what it's worth....Here at our local track, Kyle Kunze runs a tube chassis 67 Nova with a 434. His 1/8 ET last year was 5.67-5.69 and when we went to Topeka for ET Finals, his best ET was 8.91. I cannot recall his mph.
A friend of mine, Jeff, and I went to Great Bend, KS / LODRS #1 last year. He had not run 1/4 mile in a long time, nor used a throttle stop. If your weather station has a TS program, compared to the index, you make 1 "slow" time and 1 "fast" time, and your TS program should give you the amount of time on the stop. He runs 6.50 all out in the 1/8, and had .800 on the stop, Great Bend has a 11.05 s/street index. He nailed the dial 5 times after that.

Clark

kmyers · 04-05-2010, 01:22 PM

Hey Scotty,
sounds like you need to talk w/ Dewey. I believe The Wymer Camaro is about the same. He'll be @ Indy.

Kevin

WDCreech · 04-05-2010, 01:31 PM

According to NHRA, the index for Super Street is 10.90 in the 1/4, and 6.95 in the 1/8. That's where I would start.

Jason Oldfield · 04-05-2010, 02:10 PM

Your car is a little faster than mine was in the 1/8th (my old combo went about 6-flat in the eighth). Looking at a time ticket I have here, 7.061 @ 108.31 = 10.615 @ 139.27. You're going 10mph faster than me in the eighth, so you're going to need to slow it down a bunch more. For me, 7.30 in the eighth was approximately equal to 10.90. For you, I would guess that number is going to be closer to 7.50.

So, I think whoever suggested putting another 1.5 seconds in your throttle stop is pretty close. I'd probably start at an additional 1.0 seconds and go from there...

TruRacrMotorsports · 04-05-2010, 02:16 PM

Thanks for everyone's input....7.50 looks to be the closest/most educated start point I have so far. I'll go with that unless someone else comes up with something.

Thanks...

Bob Verwold · 04-05-2010, 02:32 PM

S/ST 1988 I thought had a great idea !!!!! Kinda like Sunday, Sunday, Sunday S/Gas , S/Gas, S/Gas...............

TruRacrMotorsports · 04-05-2010, 02:41 PM

Can't do Super Gas...too many family and friends there. I need a class where I can't lose on Saturdays...Super Street sounds good to me!

Scotty Phillips · 04-06-2010, 02:25 PM

i use to run my malibu on the stop at 3700-3800 and to run 10.90 i was 7.47 to 7.50 in the 1/8th. and that was 8.91 wide open. so if you are running 8.6's or 8.7's i would try to get near 7.57 to 7.62 in the 1/8th, then you can ballpark when you get there. but as long as you have your ratio, you will be fine.

cujo3116 · 04-06-2010, 01:45 PM

In a local 10.90 series I ran my Super Gas corvette in 10.90 trim just for fun. The car all out ran 8.98 150 MPH (5.72 at 119 mph in the 1/8th)

To go 10.90 I set up my stop to come on at .050, car shifted into high gear at .700 and was on the stop for 3.600 seconds. My stop RPM was 4300.

The run looked like this:

1.727 60'
5.146 330'
7.464 660 ET
110.38 660 MPH

9.340 1000'

10.894 1/4 ET
145.74 MPH

This was a combo I used in cold temperatures (53 degrees and 610 feet density altitude) I have three passes 7.450= 10.884 7.464=10.894 and 7.427=10.876

Hope this helps

Andrew

04-05-2010, 01:22 PM	#2
kmyers Junior Member Join Date: Jun 2008 Location: Chillicothe, OH Posts: 97 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... Hey Scotty, sounds like you need to talk w/ Dewey. I believe The Wymer Camaro is about the same. He'll be @ Indy. Kevin

04-05-2010, 01:31 PM	#3
WDCreech Junior Member Join Date: Jul 2007 Location: Anchorage, AK Posts: 45 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... According to NHRA, the index for Super Street is 10.90 in the 1/4, and 6.95 in the 1/8. That's where I would start. __________________ 1964 GTO 2750# 606" IA Pontiac 8.2550@164.17-1/4 1.1981-60" 5.2901@131.97-1/8

04-05-2010, 02:10 PM	#4
Jason Oldfield Senior Member Join Date: Jun 2007 Location: Rochester, NY Posts: 619 Likes: 1 Liked 10 Times in 4 Posts	Re: 10.90 1/8 Mile Number Help... Your car is a little faster than mine was in the 1/8th (my old combo went about 6-flat in the eighth). Looking at a time ticket I have here, 7.061 @ 108.31 = 10.615 @ 139.27. You're going 10mph faster than me in the eighth, so you're going to need to slow it down a bunch more. For me, 7.30 in the eighth was approximately equal to 10.90. For you, I would guess that number is going to be closer to 7.50. So, I think whoever suggested putting another 1.5 seconds in your throttle stop is pretty close. I'd probably start at an additional 1.0 seconds and go from there... __________________ Jason Oldfield S/G & S/St 1838

04-05-2010, 02:16 PM	#5
TruRacrMotorsports Junior Member Join Date: Jun 2008 Posts: 36 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... Thanks for everyone's input....7.50 looks to be the closest/most educated start point I have so far. I'll go with that unless someone else comes up with something. Thanks...

04-05-2010, 02:32 PM	#6
Bob Verwold Senior Member Join Date: Jul 2007 Location: Fayetteville Ohio Posts: 656 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... S/ST 1988 I thought had a great idea !!!!! Kinda like Sunday, Sunday, Sunday S/Gas , S/Gas, S/Gas...............

04-05-2010, 12:19 PM	#1
cad Senior Member Join Date: Apr 2009 Location: Omaha, NE Posts: 703 Likes: 204 Liked 93 Times in 52 Posts	Re: 10.90 1/8 Mile Number Help... For what it's worth....Here at our local track, Kyle Kunze runs a tube chassis 67 Nova with a 434. His 1/8 ET last year was 5.67-5.69 and when we went to Topeka for ET Finals, his best ET was 8.91. I cannot recall his mph. A friend of mine, Jeff, and I went to Great Bend, KS / LODRS #1 last year. He had not run 1/4 mile in a long time, nor used a throttle stop. If your weather station has a TS program, compared to the index, you make 1 "slow" time and 1 "fast" time, and your TS program should give you the amount of time on the stop. He runs 6.50 all out in the 1/8, and had .800 on the stop, Great Bend has a 11.05 s/street index. He nailed the dial 5 times after that. Clark

04-05-2010, 02:41 PM	#7
TruRacrMotorsports Junior Member Join Date: Jun 2008 Posts: 36 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... Can't do Super Gas...too many family and friends there. I need a class where I can't lose on Saturdays...Super Street sounds good to me!

04-06-2010, 02:25 PM	#8
Scotty Phillips Junior Member Join Date: Nov 2002 Location: lagrange Kentucky Posts: 10 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... i use to run my malibu on the stop at 3700-3800 and to run 10.90 i was 7.47 to 7.50 in the 1/8th. and that was 8.91 wide open. so if you are running 8.6's or 8.7's i would try to get near 7.57 to 7.62 in the 1/8th, then you can ballpark when you get there. but as long as you have your ratio, you will be fine.

04-06-2010, 01:45 PM	#9
cujo3116 Junior Member Join Date: Nov 2004 Location: Canada Posts: 53 Likes: 0 Liked 0 Times in 0 Posts	Re: 10.90 1/8 Mile Number Help... In a local 10.90 series I ran my Super Gas corvette in 10.90 trim just for fun. The car all out ran 8.98 150 MPH (5.72 at 119 mph in the 1/8th) To go 10.90 I set up my stop to come on at .050, car shifted into high gear at .700 and was on the stop for 3.600 seconds. My stop RPM was 4300. The run looked like this: 1.727 60' 5.146 330' 7.464 660 ET 110.38 660 MPH 9.340 1000' 10.894 1/4 ET 145.74 MPH This was a combo I used in cold temperatures (53 degrees and 610 feet density altitude) I have three passes 7.450= 10.884 7.464=10.894 and 7.427=10.876 Hope this helps Andrew

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