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-   -   10.90 1/8 Mile Number Help... (https://classracer.com/classforum/showthread.php?t=24912)

TruRacrMotorsports 04-05-2010 09:35 AM

10.90 1/8 Mile Number Help...
 
Hoping someone can give me some insight here...

I'm not going to be able to get any 1/4 mile runs before indy...and I'm trying to dial in for 10.90 on 1/8 mile runs. New combo, so I have no data to start with. Here is what I have so far...

The car ran 5.67 @ 123 in the 1/8 this weekend. I would put that at maybe 8.80-8.90 range in the 1/4?

That was my first TT...I put it on the stop for the 2nd. I turned it on at .050...shifted at .100...and had the stop on for 1.500. The stop RPM showed 3700 on the computer. I ran 7.07 @ 118 with those settings. Left it there and was able to make it a couple rounds.

My big question is...what would be a good starting point in the 1/8 for 10.90 with my combo? I don't want to get too technical...just would like somewhere to start.

Any help is appreciated!

Thanks,
Scotty Rienschield

Bob Verwold 04-05-2010 10:22 AM

Re: 10.90 1/8 Mile Number Help...
 
They do have T&T on Thursday (1/4) for those interested if it's not raining ...........I don't have a high MPH car so can't help any....

jmcarter 04-05-2010 12:13 PM

Re: 10.90 1/8 Mile Number Help...
 
I don't run that kind of MPH either but educated guess would be add another 1.5 on the stop. Somebody running similar numbers and ratio needs to chime in.

SSTRACER323 04-05-2010 12:17 PM

Re: 10.90 1/8 Mile Number Help...
 
As per Tim McAmis website,,, 5.67 in the 1/8th is about a 8.84 in the 1/4.

hope that helps some.

cad 04-05-2010 12:19 PM

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

kmyers 04-05-2010 01:22 PM

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

WDCreech 04-05-2010 01:31 PM

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.

sst1988 04-05-2010 02:09 PM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by TruRacrMotorsports (Post 180075)
Hoping someone can give me some insight here...

I'm not going to be able to get any 1/4 mile runs before indy...and I'm trying to dial in for 10.90 on 1/8 mile runs. New combo, so I have no data to start with. Here is what I have so far...

The car ran 5.67 @ 123 in the 1/8 this weekend. I would put that at maybe 8.80-8.90 range in the 1/4?

That was my first TT...I put it on the stop for the 2nd. I turned it on at .050...shifted at .100...and had the stop on for 1.500. The stop RPM showed 3700 on the computer. I ran 7.07 @ 118 with those settings. Left it there and was able to make it a couple rounds.

My big question is...what would be a good starting point in the 1/8 for 10.90 with my combo? I don't want to get too technical...just would like somewhere to start.

Any help is appreciated!

Thanks,
Scotty Rienschield





The car ran 5.67 @ 123 in the 1/8 this weekend. I would put that at maybe 8.80-8.90 range in the 1/4?



If you car runs that fast it would be alot easier just run supergas....

Jason Oldfield 04-05-2010 02:10 PM

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...

TruRacrMotorsports 04-05-2010 02:16 PM

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...

Bob Verwold 04-05-2010 02:32 PM

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...............:D

TruRacrMotorsports 04-05-2010 02:41 PM

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!

JJ3159 04-05-2010 06:12 PM

Re: 10.90 1/8 Mile Number Help...
 
you need to go 7.40 7.45 in the eighth to be 10.90 in the quarter ,thats what i had to run in my chevelle that went 8.95.

Jason Oldfield 04-06-2010 10:30 AM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by TruRacrMotorsports (Post 180134)
I need a class where I can't lose on Saturdays...Super Street sounds good to me!

Dem's sounds like fightin' words to me!

jmcarter 04-06-2010 11:58 AM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by Jason Oldfield (Post 180279)
Dem's sounds like fightin' words to me!

Easy Jason, schedule shows first round of S/ST on Sunday morning...

Bob Verwold 04-06-2010 12:02 PM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by Jason Oldfield (Post 180279)
Dem's sounds like fightin' words to me!

Saturday is just 1 time run at about 8:30 am so he's good......BUT, Sunday is a different story.........He He

Dave Polichena 04-06-2010 12:07 PM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by TruRacrMotorsports (Post 180134)
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!

pretty strong words there boy :rolleyes:

my junk runs about the same
Timer 1- .2
Timer 2- 3.8
Shift @.7
stop rpm 4300

go from there and just something to ponder, Super Street is just as tough as Super gas even though it is "entry level":cool:

cujo3116 04-06-2010 01:45 PM

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

Scotty Phillips 04-06-2010 02:25 PM

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.

Bob Verwold 04-06-2010 02:39 PM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by TruRacrMotorsports (Post 180134)
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!

An after thought, you do know S/ST weight is 2800 with driver.

And they run us over the scales from time to time.

CBS 04-06-2010 03:14 PM

Re: 10.90 1/8 Mile Number Help...
 
I know the group he hangs with....certainly questionable rules wise....lol

TruRacrMotorsports 04-06-2010 04:57 PM

Re: 10.90 1/8 Mile Number Help...
 
I was not meaning that Saturday would be an easy win...you can't lose on Saturday in Div. 3 Super Street...First round is always on Sunday. Unless they changed things...I'm guaranteed to make it to Sunday...just have to figure out how to get outta bed on time...

Weight is not an issue...plenty heavy...

Sounds like everyone's getting me close on the numbers...I'll see what I can do this weekend...I'm going to shoot for 7.45. Thanks everyone for their input...

As CBS says...my group is shady...a real group of outlaws. We wear our pre-09 Impact equipment, change our own oil at the track, dispose of it how we please, we sandbag a little, and have been known to excessively use our brakes on the top end, we park on the pavement when not supposed to, and complain about stock/super stock starting their cars too early. Man...now I'm really looking forward to Indy....

Bob Verwold 04-06-2010 06:15 PM

Re: 10.90 1/8 Mile Number Help...
 
Sounds like you'll fit in just fine...................:D

PAT 3340 04-06-2010 07:03 PM

Re: 10.90 1/8 Mile Number Help...
 
Just don't hit their orange cones

Jason Oldfield 04-06-2010 10:26 PM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by Bob Verwold (Post 180406)
Sounds like you'll fit in just fine...................:D

I was thinking exactly the same thing!

Good luck, and have fun!

CBS jr 04-07-2010 10:04 AM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by Scotty Phillips (Post 180338)
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.


Hey Champion .... who runs that slow in s/st? I forgot Jason O. lol

mr305 04-08-2010 07:45 PM

Re: 10.90 1/8 Mile Number Help...
 
scotty we would all prefer you to just run super comp!!!! lmao good luck buddy cya at indy! if your duck hunting first round look for a little green mustang!!! hahha
aaron disinger

Regan Wilson 04-11-2010 06:58 AM

Re: 10.90 1/8 Mile Number Help...
 
It depends on how hard you kill it of the line . I shut mine down instantly and run about 3600 on the stop . Last time out went 7.61 in the 1/8 on a 10.866 at 151.22 . In a 3700 lb truck .

DEWMAN 04-12-2010 08:05 AM

Re: 10.90 1/8 Mile Number Help...
 
Scotty did you get to test any this weekend.

Bill Webb 04-12-2010 08:56 PM

Re: 10.90 1/8 Mile Number Help...
 
All you guys are gonna be wishin this dude is back in a dragster !!!

T Hall 04-12-2010 09:13 PM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by Bill Webb (Post 181695)
All you guys are gonna be wishin this dude is back in a dragster !!!

Bill, that was my thought all along. Scotty is just toying with this bunch.

Darrin Christen 04-13-2010 12:19 AM

Re: 10.90 1/8 Mile Number Help...
 
Quote:

Originally Posted by Regan Wilson (Post 181254)
It depends on how hard you kill it of the line . I shut mine down instantly and run about 3600 on the stop . Last time out went 7.61 in the 1/8 on a 10.866 at 151.22 . In a 3700 lb truck .

Hey Regan, can I borrow your engine? Wow, my junk is slow!

Scotty Phillips 04-16-2010 12:32 PM

Re: 10.90 1/8 Mile Number Help...
 
the malibu is not coming back out anytime soon. was just giving some numbers. i went out and tested the new dragster last sat. was not at all what i was hoping for. very slow!! not really sure of this new combination. heading up to abbruzzi's in a few to pick up a diff converter to see if this helps. man i hope so. if not i will have a real nice 427 small block for sale in october. good luck guys in indy!!


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