anyone got a link to a good Electric Vacuum Pump
03-10-2005, 02:29 AM
#1
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anyone got a link to a good Electric Vacuum Pump I think This will be one of my next mods. I would like to be able to install it "inline" on my current (pcv) system to assist in evacuation the case while the car is under boost. WHat do you guys recomend and who makes a GOOD pump? Thanks for the help, Lata, Ark
03-10-2005, 12:58 PM
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There's a OEM cadilac pump many people use for LT1's, however my experiences with electric pumps was that at high rpms the pump couldnt keep up and it would still build up slight crankcase pressure by 5000rpms. It was about $140 I think when I bought mine...found the part #'s and references to it by doing a google.
If your rings seal better than mine maybe it'd work fine. Otherwise I think most end up going with a beltdrive setup.
If your rings seal better than mine maybe it'd work fine. Otherwise I think most end up going with a beltdrive setup.
03-10-2005, 01:36 PM
#4
Originally Posted by jmX
There's a OEM cadilac pump many people use for LT1's, however my experiences with electric pumps was that at high rpms the pump couldnt keep up and it would still build up slight crankcase pressure by 5000rpms. It was about $140 I think when I bought mine...found the part #'s and references to it by doing a google.
If your rings seal better than mine maybe it'd work fine. Otherwise I think most end up going with a beltdrive setup.
If your rings seal better than mine maybe it'd work fine. Otherwise I think most end up going with a beltdrive setup.
diff type of pump...
you're thinking crankcase vac pump.
hes refering to a elec pump to assist in building vacuum for power brakes.
Arkangel77:
the only aftermarket one ive seen people use are the SSBC ones.. they seem happy with them.
early 80s 4cyl single barrel TBI cars didnt make enough vac for power brakes, so GM had a elec pump in them... if you can find one (not easy anymore) then it works good.
the other thing you could do is swap your system over to hydraulic assist.. then run it off of the powersteering pump.
03-10-2005, 01:45 PM
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Mr Dude - Ya Lost me - My brakes are Fine - I need a pump to help with crankcase evacuation. Are you saying that the SSBC will work for that or it wont?
03-10-2005, 01:56 PM
#6
ahh, i read yours wrong...
the SSBC one is for pulling a vac to help with your brake assist.... for example, if you had a cam with so much overlap, the brakes wouldnt work....
the Stainless Steel Brake Companys pump is for brake and accessory vac... not for pulling a crankcase vac.....
for thoes, you pretty much need a belt driven pump.
the SSBC one is for pulling a vac to help with your brake assist.... for example, if you had a cam with so much overlap, the brakes wouldnt work....
the Stainless Steel Brake Companys pump is for brake and accessory vac... not for pulling a crankcase vac.....
for thoes, you pretty much need a belt driven pump.
03-10-2005, 02:12 PM
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pump, PN 22062562; bracket, PN 22062563 I beleive is what I used.
Like I said tho, at high rpms I dont think the pump will suck enough to keep a vacuum at all in the crankcase. At idle and most all daily driving I was getting quite a bit of vacuum though. All depends on your rings I guess.
Like I said tho, at high rpms I dont think the pump will suck enough to keep a vacuum at all in the crankcase. At idle and most all daily driving I was getting quite a bit of vacuum though. All depends on your rings I guess.
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03-10-2005, 06:22 PM
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yES - I see. I am going to add this to my existing system so the combination of the 2 might work OK> I am gona have to just try it and see? Thanks a LOT for the HELP! Lata, Ark
03-10-2005, 08:14 PM
#9
Originally Posted by jmX
pump, PN 22062562; bracket, PN 22062563 I beleive is what I used.
Like I said tho, at high rpms I dont think the pump will suck enough to keep a vacuum at all in the crankcase. At idle and most all daily driving I was getting quite a bit of vacuum though. All depends on your rings I guess.
Like I said tho, at high rpms I dont think the pump will suck enough to keep a vacuum at all in the crankcase. At idle and most all daily driving I was getting quite a bit of vacuum though. All depends on your rings I guess.
Last edited by Oatmeal; 03-10-2005 at 10:03 PM.
