Shutting off engine crossing finish line

e vassar · 09-03-2019, 07:40 PM

Ive noticed a few people doing this.
What's the reason?

TOSTO RACING · 09-03-2019, 07:48 PM

Save parts, easier on valve springs.

HR9121 · 09-03-2019, 07:59 PM

On those runs that you may be using a minimal amount of oil in the pan it's a good idea so if the oil runs away from the pickup when you're in the shutdown area.

jmcarter · 09-03-2019, 08:02 PM

Vastly easier and safer if you have a clean neutral of course

Tim H · 09-03-2019, 08:20 PM

Noticed this practice a lot while standing just passed the finish line during SS @ the US Natls, this weekend.

Jared Jordan · 09-03-2019, 08:26 PM

Not as hard on parts, in general, but it does depend on the car.

The '65 SS/BA Belvedere I drove once upon a time would tear up rod bearings if I didn't go into neutral past the finish line. Never tied itself up because Grandpa was meticulous about maintenance; particularly the preventative type. After we went to "clean neutral" in the valve body and I could kill it at the stripe, that was never an issue again.

On the other hand, my '64 Dodge H/SA car has great oil pressure through the entirety of the shutdown area and does not have a "clean neutral." Racepak shows a line that descends in correlation to engine RPM, but no dips whatsoever.

Ed Carpenter · 09-03-2019, 08:34 PM

Stick car super easy done it for years

e vassar · 09-03-2019, 09:29 PM

So if I don't have a clean neutral, there's no reason to do it?

J.R. Haddad · 09-03-2019, 09:45 PM

All the reasons above are why you do it, but it can be unsafe without
a clean neutral valve body. J.R.

MR DERBY CITY · 09-03-2019, 09:49 PM

Mr. E,....if you have not experienced engine problems before, why would you want to shut your engine off now ? Many , many 3 speed trans builders Do NOT recommend this ....

09-03-2019, 07:40 PM	#1
e vassar Member Join Date: Jul 2015 Posts: 380 Likes: 67 Liked 271 Times in 107 Posts	Shutting off engine crossing finish line Ive noticed a few people doing this. What's the reason?

09-03-2019, 07:48 PM	#2
TOSTO RACING Senior Member Join Date: May 2007 Location: DRAGSTRIP Posts: 884 Likes: 861 Liked 639 Times in 182 Posts	Re: Shutting off engine crossing finish line Save parts, easier on valve springs. __________________ 5664 GHI/SA 1985 CAMARO RED H/SA 1985 CAMARO BLUE I/SA

09-03-2019, 07:59 PM	#3
HR9121 Live Reporter Join Date: Jan 2011 Location: New Bern, NC Posts: 3,467 Likes: 146 Liked 3,363 Times in 731 Posts	Re: Shutting off engine crossing finish line On those runs that you may be using a minimal amount of oil in the pan it's a good idea so if the oil runs away from the pickup when you're in the shutdown area. __________________ James Williamson W200 J/SA. SS/JA

09-03-2019, 08:02 PM	#4
jmcarter VIP Member Join Date: Dec 2008 Location: Richmond Hill GA (and Port Ludlow WA) Posts: 4,293 Likes: 2,367 Liked 3,165 Times in 969 Posts	Re: Shutting off engine crossing finish line Vastly easier and safer if you have a clean neutral of course __________________ Jim Carter 2340 Super Stock 2340 SST/2340 Stock Set another place at the table

09-03-2019, 08:20 PM	#5
Tim H VIP Member Join Date: Jan 2007 Posts: 1,040 Likes: 1,068 Liked 481 Times in 158 Posts	Re: Shutting off engine crossing finish line Noticed this practice a lot while standing just passed the finish line during SS @ the US Natls, this weekend.

09-03-2019, 08:26 PM	#6
Jared Jordan Senior Member Join Date: Jun 2004 Location: Modesto, CA Posts: 612 Likes: 196 Liked 532 Times in 118 Posts	Re: Shutting off engine crossing finish line Not as hard on parts, in general, but it does depend on the car. The '65 SS/BA Belvedere I drove once upon a time would tear up rod bearings if I didn't go into neutral past the finish line. Never tied itself up because Grandpa was meticulous about maintenance; particularly the preventative type. After we went to "clean neutral" in the valve body and I could kill it at the stripe, that was never an issue again. On the other hand, my '64 Dodge H/SA car has great oil pressure through the entirety of the shutdown area and does not have a "clean neutral." Racepak shows a line that descends in correlation to engine RPM, but no dips whatsoever. __________________ Jared Jordan 9 B/SA 2024 Jeg's D7 All Star - Stock

09-03-2019, 08:34 PM	#7
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	Re: Shutting off engine crossing finish line Stick car super easy done it for years __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

09-03-2019, 09:29 PM	#8
e vassar Member Join Date: Jul 2015 Posts: 380 Likes: 67 Liked 271 Times in 107 Posts	Re: Shutting off engine crossing finish line So if I don't have a clean neutral, there's no reason to do it?

09-03-2019, 09:45 PM	#9
J.R. Haddad Senior Member Join Date: Jun 2012 Posts: 784 Likes: 933 Liked 1,463 Times in 307 Posts	Re: Shutting off engine crossing finish line All the reasons above are why you do it, but it can be unsafe without a clean neutral valve body. J.R.

09-03-2019, 09:49 PM	#10
MR DERBY CITY VIP Member Join Date: Feb 2014 Location: Derby City, USA Posts: 3,631 Likes: 1,081 Liked 7,904 Times in 1,513 Posts	Re: Shutting off engine crossing finish line Mr. E,....if you have not experienced engine problems before, why would you want to shut your engine off now ? Many , many 3 speed trans builders Do NOT recommend this ....