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#151
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I've heard you get about a 25-35hp gain from a vacuum pump.
Kurt
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![]() 1969 SS396 Post Sedan Delivered to Van-T Topeka KS MCACN Day2 Concourse Gold Award 1965 VW El Lobo Dune Buggy built in the mid 70’s for the Iowa Shriners 1968 Schwinn Orange Krate 1969 Schwinn Pea Picker 1968 Schwinn 5-Speed 1970 Schwinn 3-Speed Deluxe 1972 Schwinn 10-Speed Continental 1973 Schwinn 5-Speed Suburban All Original Paint Bikes |
#152
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Benny ain't tellin KB.
You will just have to line up next to him and see! |
#153
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Ha......that would be fun running next to Benny.....well for only a short distance until he kicks in the secondary's.
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![]() 1969 SS396 Post Sedan Delivered to Van-T Topeka KS MCACN Day2 Concourse Gold Award 1965 VW El Lobo Dune Buggy built in the mid 70’s for the Iowa Shriners 1968 Schwinn Orange Krate 1969 Schwinn Pea Picker 1968 Schwinn 5-Speed 1970 Schwinn 3-Speed Deluxe 1972 Schwinn 10-Speed Continental 1973 Schwinn 5-Speed Suburban All Original Paint Bikes |
#154
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No, no......... weight per cubic inch. You will get a couple lites on him.
Better not miss a shift though. |
#155
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Not with the Ram Rod...... [img]<<GRAEMLIN_URL>>/
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![]() 1969 SS396 Post Sedan Delivered to Van-T Topeka KS MCACN Day2 Concourse Gold Award 1965 VW El Lobo Dune Buggy built in the mid 70’s for the Iowa Shriners 1968 Schwinn Orange Krate 1969 Schwinn Pea Picker 1968 Schwinn 5-Speed 1970 Schwinn 3-Speed Deluxe 1972 Schwinn 10-Speed Continental 1973 Schwinn 5-Speed Suburban All Original Paint Bikes |
#156
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<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 69 Post Sedan</div><div class="ubbcode-body">I've heard you get about a 25-35hp gain from a vacuum pump.
Kurt </div></div> Theoretically this is true IF the motor was designed for it, OR is lacking and the pump can make up for this. IF engine has a smaller cam, you can create the vacuum as need there, therefore the Vac pump will do nothing really. AND too much vacuum can/will scavenge oil off rotating parts therefore loosing the film layer. NOT GOOD. Buddy just built an LS 6.0 with small hyd roller. Made 585 Hp with 16 lbs of vac. So on this the vac pump might have cost Hp for the drive. Most I hear from want vac in the 18-22 lbs range AT RPM
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'58 Apache pick up restomodding with twin turbo 522 '78 Z28 4sp being restored '78 Z28 32,000 survivor, Og Yellow paint, AC. '70 W30 convert TRIBUTE '70 CANADIAN Nova SS396 L78 Pro Street '69 CANADIAN Nova SS 396/350 hp '67 CANADIAN Nova SS 427 10 sec. driver '66 CANADIAN Nova SS Race Car '69 FIREBIRD Tubbed Racecar '61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD) '31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW) |
#157
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Running a vacuum pump is up to the guy owning the car. It;s a fact, keeping the crankcase in a vaccum. Will make the motor work eazier and keeps the oil from foaming in the pan. You can;t have too much vaccum, you will pull the oil off the rods and pins. I was told to only run 12 inches at full RPM. All I can say is i gained a whole 1/10 of a second and 3 plus MPH. Thanks The Dutchman [img]<<GRAEMLIN_URL>>/dunno.gif[/img]
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Thanks Benny Enjoy; orginal cars,with orginal drivetrains and docs. bblocks are my favorite. |
#158
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Benny, YES some like yourself WILL pick up, other have not. Good that your running only 12 @ your RPM.
Your running well and consistent with you car, that's good. Just wondering how those heads are working out for you?
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'58 Apache pick up restomodding with twin turbo 522 '78 Z28 4sp being restored '78 Z28 32,000 survivor, Og Yellow paint, AC. '70 W30 convert TRIBUTE '70 CANADIAN Nova SS396 L78 Pro Street '69 CANADIAN Nova SS 396/350 hp '67 CANADIAN Nova SS 427 10 sec. driver '66 CANADIAN Nova SS Race Car '69 FIREBIRD Tubbed Racecar '61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD) '31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW) |
#159
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John, I;m running the same heads I had on the first motor. Strikeforce alum head. My engine guy said they work, good for the money. Nothing done no port or polishing. Bolt on and go! Thanks The Dutchman
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Thanks Benny Enjoy; orginal cars,with orginal drivetrains and docs. bblocks are my favorite. |
#160
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Professor, YOU are a "bolt on and go."
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