Dry Sump Suction lines

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
gramps
Member
Member
Posts: 78
Joined: Fri Jan 23, 2009 7:16 am

Dry Sump Suction lines

Post by gramps » Thu Apr 11, 2019 5:37 pm

What is the best type hose to use on the suction side of the dry sump pump? How many inches of vacuum does the pump pull? An16 out of the pan, AN10 out of the valley.

KnightEngines
Guru
Guru
Posts: 2060
Joined: Fri Jan 09, 2009 8:51 pm
Location: Australia

Re: Dry Sump Suction lines

Post by KnightEngines » Thu Apr 11, 2019 6:52 pm

I use speedflow 200 series teflon braid.

1972ho
Expert
Expert
Posts: 713
Joined: Thu Nov 21, 2013 12:52 am

Re: Dry Sump Suction lines

Post by 1972ho » Thu Apr 11, 2019 8:03 pm

Are you talking about the scavenging lines on the pan or pump suction line on the tank.

gramps
Member
Member
Posts: 78
Joined: Fri Jan 23, 2009 7:16 am

Re: Dry Sump Suction lines

Post by gramps » Thu Apr 11, 2019 8:27 pm

As said 2 AN12 out of pan, 1 AN10 out of valley.

fast_crew
Pro
Pro
Posts: 491
Joined: Sun Jan 29, 2006 5:27 pm

Re: Dry Sump Suction lines

Post by fast_crew » Fri Apr 12, 2019 6:31 am

We've never had a problem just using pushlock type hose and fittings. If using stainless braid hose and reusable ends, avoid the o-ringed swivel type ends as we've had them suck air after getting some time on them. The amount of Vacuum pulled all depends on the amount of blow bye. Cast or aluminum block, alcohol or gas?? Steam created is the same/worse than "blow bye" when it comes to evacuating the crankcase.
Josh K.

leahymtsps
Pro
Pro
Posts: 324
Joined: Tue Nov 18, 2008 10:20 am
Location: upstate NY

Re: Dry Sump Suction lines

Post by leahymtsps » Fri Apr 12, 2019 6:49 am

Personally I use Brown and Miller and they claim you should use their braded stainless especially if more than
20". I do know there are some running their hi - temp non stainless below 15".
Some in Nascar are drawing up to 28" with the oil pump.

Tom

midnightbluS10
Expert
Expert
Posts: 555
Joined: Sun Oct 20, 2013 8:41 am

Re: Dry Sump Suction lines

Post by midnightbluS10 » Fri Apr 12, 2019 7:21 am

fast_crew wrote:
Fri Apr 12, 2019 6:31 am
We've never had a problem just using pushlock type hose and fittings. If using stainless braid hose and reusable ends, avoid the o-ringed swivel type ends as we've had them suck air after getting some time on them. The amount of Vacuum pulled all depends on the amount of blow bye. Cast or aluminum block, alcohol or gas?? Steam created is the same/worse than "blow bye" when it comes to evacuating the crankcase.
Is the push-lok hose designed to be used with hot oil, though? Most of the stuff I see says not to use it for suction hose because it's been known to suck closed.
JC - Precision Guesswork & Expert Up Arrow Manipulation

Coloradoracer
Expert
Expert
Posts: 516
Joined: Sun Mar 21, 2010 9:48 pm
Location: Lehigh Acres, FL.
Contact:

Re: Dry Sump Suction lines

Post by Coloradoracer » Fri Apr 12, 2019 7:50 am

I'm using the lightweight black braided hose, -12 in size...more flexible and no issues with collapse. Four stage system here, plus vacuum pump.
Mark Goulette
Owner/Driver of the Livin' The Dream rear engine dragster
Speed kills but it's better than going slow!
http://www.livinthedreamracing.com
Authorized Amsoil Retailer

houser45
Member
Member
Posts: 197
Joined: Thu Apr 24, 2014 10:05 pm

Re: Dry Sump Suction lines

Post by houser45 » Fri Apr 12, 2019 9:45 pm

Dont use push lock on the suction side. It will pull shut

gramps
Member
Member
Posts: 78
Joined: Fri Jan 23, 2009 7:16 am

Re: Dry Sump Suction lines

Post by gramps » Sat Apr 13, 2019 9:20 am

Looking at using Fragola Premium Black Nylon Race Hose suppose to be good to 28in.hg.

Post Reply