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Vac pump ET gains? #755794 07/23/10 09:42 AM 07/23/10 09:42 AM
Joined: Dec 2007 Posts: 310 Michigan 4 412 SB Duster OP enthusiast
412 SB Duster OP enthusiast 4 Joined: Dec 2007 Posts: 310 Michigan	Has anyone added a vac pump to 400" SB Gas motor with low tension ring pack. If so What gains if any did they see in E.T Is it worth the money? Thanks Al

Re: Vac pump ET gains? [Re: 412 SB Duster] #755795 07/23/10 01:18 PM 07/23/10 01:18 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	Don't know but without some vacuum in the engine it will be like puff the magic dragon with low tension rings.

Re: Vac pump ET gains? [Re: 412 SB Duster] #755796 07/23/10 01:30 PM 07/23/10 01:30 PM
Joined: Apr 2005 Posts: 2,128 Salt Lake City C camastomcat top fuel
camastomcat top fuel C Joined: Apr 2005 Posts: 2,128 Salt Lake City	Quote: Has anyone added a vac pump to 400" SB Gas motor with low tension ring pack. If so What gains if any did they see in E.T Is it worth the money? Thanks Al It's worth the money to keep oil off the engine compartment! But I picked up .06 and it runs more consistant, oil free.

Re: Vac pump ET gains? [Re: camastomcat] #755797 07/23/10 01:34 PM 07/23/10 01:34 PM
Joined: Mar 2003 Posts: 1,632 Lubbock,TX D DavidDean top fuel
DavidDean top fuel D Joined: Mar 2003 Posts: 1,632 Lubbock,TX	mine's worth .05-.08 on my 408

Re: Vac pump ET gains? [Re: DavidDean] #755798 07/23/10 02:59 PM 07/23/10 02:59 PM
Joined: Dec 2007 Posts: 310 Michigan 4 412 SB Duster OP enthusiast
412 SB Duster OP enthusiast 4 Joined: Dec 2007 Posts: 310 Michigan	Thanks for the replies, as to the smoking issue i don't have that problem Thankfully. Oil leaking is not a issue either. It maybe because I have 4 breathers on it to help from building pressure in the block. I like what I'm hearing about the pick up in ET. Any of you have pic's of your SB with the Vac pump installed. Thanks Al

Re: Vac pump ET gains? [Re: 412 SB Duster] #755799 07/23/10 04:08 PM 07/23/10 04:08 PM
Joined: Jan 2003 Posts: 11,722 Portage,michigan B B3422W5 I Live Here
B3422W5 I Live Here B Joined: Jan 2003 Posts: 11,722 Portage,michigan	Al How many times do i have to tell you to install a roller cam and be done with it 69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17

Re: Vac pump ET gains? [Re: 412 SB Duster] #755800 07/23/10 04:10 PM 07/23/10 04:10 PM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	Quote: Thanks for the replies, as to the smoking issue i don't have that problem Thankfully. Oil leaking is not a issue either. It maybe because I have 4 breathers on it to help from building pressure in the block. I like what I'm hearing about the pick up in ET. Any of you have pic's of your SB with the Vac pump installed. Thanks Al pumps are not used for solving any oil,leaks or smoking problems. their job is to create negative crankcase pressure. that keeps the pressure off the backside of the rings and promotes a much better ring seal. that's where the ioncrease in power comes from. using in conjunction with a low tension set of oil rings that reduce drag.the combination of the two makes moe power,when used with standard tension rings you will see less net results home of the Sox and Martin Hemi Duster

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