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| Team Camaro Tech Current Topic: What pump would you use? | ||
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#1
Jul 15th, 05, 05:56 AM
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What pump would you use?
Hi guys: I am just getting ready to complete the build on my 405 sbc. My question to you is what oil pump would you use with this combination , a Mellings high or standard volume pump and why? specs are :
405 cid smallblock compcams xr294hydaroller afr ported 195 heads afr rev kit 10:5-1 comp. srp 16 cc dish pistons eagle rotating assem. balanced hopefully shifting at 6200 milodon 30900 7 quart pan with tray Your opinions make life easier when it comes to important motor decisions! Sincerely Ken.
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1968 camaro,405cid,10:1comp..,#509 casting,studded 2 bolt,195raceported heads,750holley vac.sec.,cc xr300hr cam with rev kit,rpm airgap,msd dist. 6al ign.,8.5 10bolt,3.73gear,3500 stall,turbo 350 trans, 60ft-1.487,1/4-11.36,mph 116.34 
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#2
Jul 15th, 05, 06:14 AM
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Re: What pump would you use?
This is one of those long time myths or at least misunderstood areas. Standard volume pumps supply plenty of oil pressure/volume unless you have an external oil cooler and plumbing etc or real high tolerances changing the volume "footprint" of the oiling system. Then go with a upgrade. Using the high volume pumps on standard volume blocks just eats hp and unnecessary wear on the pump/cam gears.
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#3
Jul 15th, 05, 10:30 AM
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Re: What pump would you use?
Totally agree - go with standard and look for 10 psi per 1000 RPM at most. Been using a Melling standard pump on my 421 SBC for 4 years with no problems and getting a consistent 612 hp out of it. Crank scrapers are good for a few hp as well.
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67 Coupe - 10.36 @ 127, NA 421 ci SBC
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#4
Jul 16th, 05, 06:37 AM
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Re: What pump would you use?
Look at the blueprinted Moroso STANDARD VOLUME pump.
You do not need a high volume pump.
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E85 racer and E85 carb builder www.horsepowerinnovations.com 68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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#5
Jul 16th, 05, 08:07 AM
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Re: What pump would you use?
Eric: are you referring to the #22100 pump and if so is it dimensionally the same as a melling standard volume pump? I want to use the milodon 30900 pan and suggested pickup for the melling pump #18311. What pan and pickup are you using?
Ken.
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1968 camaro,405cid,10:1comp..,#509 casting,studded 2 bolt,195raceported heads,750holley vac.sec.,cc xr300hr cam with rev kit,rpm airgap,msd dist. 6al ign.,8.5 10bolt,3.73gear,3500 stall,turbo 350 trans, 60ft-1.487,1/4-11.36,mph 116.34
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