Thread: header evac?
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Old 08-11-2006, 02:19 PM
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russ467 russ467 is offline
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Join Date: Nov 2003
Location: Lexinton, SC
Posts: 612
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Quote:
Originally Posted by tikiklubracing
If your building enough pressure to blow it out the valley pan, you need new check valves. They tend to stick in a few years, especially if it isn't started every weekend. Take off the hose at the breather and blow on the hose. If your cheeks blowup you need em. The local "good parts house" sells one for a Ford that is the same as the one that come Je's or Sum's kits. 14.00 ea. to Joe Blow, and about 1/2 that if you have a relationship with them.

uh-o left myself open again to Rob B. ridicule. Oh well He'll turn it into a gay thingy, cause I said Joe Blow
Actually it was a brand new kit. It pulled plenty of vacuum at idle, but either my exhaust was building too much pressure to keep it from sucking, or couldnt keep up with crankcase pressure. I am running Total Seal rings and there has been discussion about excessive crankcase pressure using those rings.

__________________
70 Formula

Old engine:
467 HO headed
6.79 1/8th mile @ 101.87 no N20. 1.44 60ft
6.23 1/8th @ 111.83 w/nitrous
1.37 60ft

New Engine
IAII 535
Calvin Hill Eheads
Few test passes made. Tore it up. Just got it fixed.