Want to slow car down
#1
Want to slow car down
my car runs around 11.00's all day long but I dont have the money for a cage right now and I want to keep it around 11.50's. I shift the car @ 6800, im wondering if I short shift it if it would slow down to around 11.50's. Do you guys have any idea where I could shift it at to slow it down or do you guys know a differnt way to slow it down and still keep it consistant? There's a race this weekend that I want to run so any help would be appreciated.
#3
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You could add weight, but you'd need about 500 lbs to slow a half second, so that's not realistic.
Short shifting will help, but you'll just need to be consistent with the new shift points. You'll need a few runs to dial it in if you're making changes...but you could start but lowering your shifts to 6,000 and see how much it knocks off. If you need more, keep going lower.
Short shifting will help, but you'll just need to be consistent with the new shift points. You'll need a few runs to dial it in if you're making changes...but you could start but lowering your shifts to 6,000 and see how much it knocks off. If you need more, keep going lower.
#5
Launch softer. Give up a couple tenths on the 60ft and shift lower like previously stated. More air in the tires will help you find a new softer launch. Get something consistent and you may get away with adding 100-150lbs only
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Install a 2 step on the car so you launch consistantly.
Is the TH350 a manual valve body? I assume it it. If so you need to experiment with a shift light at certain RPM's in order to get your number.
Then you can do 11.5's all day with consistancy. I can slow my car down via boost control if I'm in a situation that requires bracket racing and I launch off a very low RPM on the 2-step.
Is the TH350 a manual valve body? I assume it it. If so you need to experiment with a shift light at certain RPM's in order to get your number.
Then you can do 11.5's all day with consistancy. I can slow my car down via boost control if I'm in a situation that requires bracket racing and I launch off a very low RPM on the 2-step.
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#10
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Perfect. You should be able to foot brake it to say 2000RPM set your shift light to 5000RPM and make a test run. See where you're at and adjust the shift light RPM lower or higher by say 200RPM until you get the exact number that you wanted. The timing of your shifts need to be consistant with the light. This should get you there.
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I run in an index race once a month (6.50 index). My car runs high .20- low .30's and I pull about 6* of timing from 6-8k rpms pending on weather conditions and it will slow it down to a very low .50. This is the easiest thing to do if you have some tuning software. For me it was a plus because I didn't have to change my driving regimen at all.
#18
Al 95 Z28
#19
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http://www.yellowbullet.com/forum/sh...d.php?t=451426
Here is an example from MIR.
See post #12
Another one,
http://kansasdragway.com/racer-secti...racing-series/
I would think your fine as its not shutting the car down, more like restricting. I would think thats a good question for a track tech guy.
#20
Like I said, may vary from track to track, and its class dependant. LVD used to post their rules and right now the site has not been updated for 2012.
http://www.yellowbullet.com/forum/sh...d.php?t=451426
Here is an example from MIR.
See post #12
Another one,
http://kansasdragway.com/racer-secti...racing-series/
I would think your fine as its not shutting the car down, more like restricting. I would think thats a good question for a track tech guy.
http://www.yellowbullet.com/forum/sh...d.php?t=451426
Here is an example from MIR.
See post #12
Another one,
http://kansasdragway.com/racer-secti...racing-series/
I would think your fine as its not shutting the car down, more like restricting. I would think thats a good question for a track tech guy.
Al 95 Z28 still trying to go faster