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08-24-2010, 11:16 AM | #1 |
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t stop thoughts/debate
Shut down more with less time
or Shut down less with more time. Chip |
08-24-2010, 11:33 AM | #2 |
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Re: t stop thoughts/debate
I would think it's a matter of preference, either will work but the less time on the stop the more MPH you'll carry at the stripe.
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Bill Baer 3391 SC, 339B SC, QR |
08-24-2010, 03:11 PM | #3 |
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Re: t stop thoughts/debate
i like more shut down less time ,i try to find that spot that works for 9.90 and 10.90
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08-24-2010, 03:32 PM | #4 |
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Re: t stop thoughts/debate
I understand about the MPH thing. I'm looking for effeciency. I know when the blade are shut it affects air flow. If you change the rate or amount of air flow it's got to change the consistentcy/effeciency of the car so:
1) Do you have more air flow for a longer period or 2) Less air flow for a shorter period ?????????????????????????????????????????????????? ?????????????????? |
08-24-2010, 04:07 PM | #5 |
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Re: t stop thoughts/debate
When starting out I was told and tried to set up the stop RPM so that you have a 2 to 2.5:1 ratio. even the stop manufacturers recommend this. I have had cars that it is 4000rpm and cars that that is closer to 5,000. I was told by Sherman Adcock once that you never want to go below 4000. I think it is because the convertor makes the car inconsistant.
Roy |
08-24-2010, 06:36 PM | #6 | |
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Re: t stop thoughts/debate
Quote:
Previously I tried to go back to near idle so my F.I. barrell valve would close but it wasn't consistent so some time ago I started to take it down to ~4500 and I found that to be much more consistent. The type of stop you use can make a difference also, if you get too low rpm with a blade type of stop it possible to get a lean stumble when it opens because you won't get an accelerator pump shot. Which of course is not a problem with an in line type stop.
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Bill Baer 3391 SC, 339B SC, QR Last edited by Bill Baer; 08-24-2010 at 06:39 PM. |
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08-24-2010, 11:31 PM | #7 |
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Re: t stop thoughts/debate
Count me in the shut down more less time category. But I am on the stop a LONG time in S/ST..
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08-25-2010, 10:26 AM | #8 | |
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Re: t stop thoughts/debate
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08-25-2010, 10:45 AM | #9 | |
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Re: t stop thoughts/debate
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08-25-2010, 12:59 PM | #10 | |
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Re: t stop thoughts/debate
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