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Locobob · 05-31-2006

Kurt White rigged one up a while back. I believe he used a C5 electric air pump switched to come on at full throttle, got something like 10hp on the dyno out of it. I have been playing with this idea for a while now. Don't have a system worked out just yet but I found that the stock ZR-1 electric air pump will only produce a bit over 1in of vacuum. I also have a C5 air pump laying around but I have yet to wire it up to see if it does any better. Both of these units are cold start emissions pumps designed to blow fresh air into the exhaust, turned around they can be used to create vacuum. Probaby not the best choice but worth playing with as I have them on hand. It may also be possible to use the vehicles exhaust system for a crankcase evac system, it's been done on other cars with some success.

05-31-2006	#5
Locobob Join Date: Jan 2004 Location: Portland, OR Posts: 1,047	Re: Vaccume or breathers? Kurt White rigged one up a while back. I believe he used a C5 electric air pump switched to come on at full throttle, got something like 10hp on the dyno out of it. I have been playing with this idea for a while now. Don't have a system worked out just yet but I found that the stock ZR-1 electric air pump will only produce a bit over 1in of vacuum. I also have a C5 air pump laying around but I have yet to wire it up to see if it does any better. Both of these units are cold start emissions pumps designed to blow fresh air into the exhaust, turned around they can be used to create vacuum. Probaby not the best choice but worth playing with as I have them on hand. It may also be possible to use the vehicles exhaust system for a crankcase evac system, it's been done on other cars with some success. __________________ Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 Last edited by Locobob; 05-31-2006 at 04:04 AM.