Vacuum pump kits
Registered User
Joined: Oct 2002
Posts: 11
From: Connecticut
yes, pretty typical on a small block; big blocks and large cubic in combo tend to give even more hp. On top of the ring seal improvements it also removes about 1/2 the air in the crankcase so there is less resistance pumping under the pistons and around the crank. (plus you don't get oil leaks while running!)
Interestingly- I have a 358 that likes the vacuum, but it was built with low tension oil rings and thin compression rings (.043" rings); when I dyno'd my 427sb, built with 1/16 nitrous compatible rings and std tension oil rings, it actually lost 10hp- likely due to too much ring seal and cylinder wall friction.
-Dan
Interestingly- I have a 358 that likes the vacuum, but it was built with low tension oil rings and thin compression rings (.043" rings); when I dyno'd my 427sb, built with 1/16 nitrous compatible rings and std tension oil rings, it actually lost 10hp- likely due to too much ring seal and cylinder wall friction.
-Dan
Registered User
Joined: Mar 2002
Posts: 1,290
From: IL
check out www.starvaccumpumps.com they've got one that should work, and its not real pricey. I think Summit might sell an electric version.
Registered User
Joined: Jan 2006
Posts: 291
check out www.starvaccumpumps.com they've got one that should work, and its not real pricey. I think Summit might sell an electric version.
Registered User
Joined: Mar 2000
Posts: 2,037
From: 51°N 114°W, 3500' elevation
Here's your only real choices for a vacuum pump. There are probably a few others but these are the top 3 used in racing.
http://www.starvacuumpumps.com/catalog.php?cat=1
http://www.moroso.com/catalog/catego...?catcode=17200
http://www.gzmotorsports.com/vacuum-pumps.html
http://www.starvacuumpumps.com/catalog.php?cat=1
http://www.moroso.com/catalog/catego...?catcode=17200
http://www.gzmotorsports.com/vacuum-pumps.html
Thread Starter
Banned
Joined: Oct 2006
Posts: 4,970
From: Goochland, Va.
http://www.thunderracing.com/catalog...&sid=798#P6515
Thunder kit only pulls 7" of vac. is that enought to even do anything?
I am using a low tension ring set and they are even back cut some.......I have not made the descison on the vac pump yet
Thunder kit only pulls 7" of vac. is that enought to even do anything?
I am using a low tension ring set and they are even back cut some.......I have not made the descison on the vac pump yet
Thread Starter
Banned
Joined: Oct 2006
Posts: 4,970
From: Goochland, Va.
Reher-Morrison is the originator of the Vacuum Pump kit. This kit is designed to take the hassle out of installing a vacuum pump. The complete Vacuum Pump Kit will save you time and money.
Benefits of the Reher-Morrison Vacuum Pump Kit:
· Lowers crankcase pressure to minimize windage
· Improves ring seal for more power
· Allows use of low-tension piston rings for less friction
· Reduces blow-by, intake charge contamination and detonation
· Reduces oil leaks for lower maintenance and improved safety
Reher-Morrison Vacuum Pump Kit includes:
· Moroso three-vane vacuum pump
· Mandrel, pump and crank pulleys
· Breather/catch tank with separate mounting bracket
· -10 and –12 AN fittings
· -12 braided stainless hose
· Vacuum relief valve (Not shown above) -or- New! Option! Click Here
· Liquid filled vacuum gauge (Not shown above)
Price: $799
Benefits of the Reher-Morrison Vacuum Pump Kit:
· Lowers crankcase pressure to minimize windage
· Improves ring seal for more power
· Allows use of low-tension piston rings for less friction
· Reduces blow-by, intake charge contamination and detonation
· Reduces oil leaks for lower maintenance and improved safety
Reher-Morrison Vacuum Pump Kit includes:
· Moroso three-vane vacuum pump
· Mandrel, pump and crank pulleys
· Breather/catch tank with separate mounting bracket
· -10 and –12 AN fittings
· -12 braided stainless hose
· Vacuum relief valve (Not shown above) -or- New! Option! Click Here
· Liquid filled vacuum gauge (Not shown above)
Price: $799