Changing to vented opti

94 formula

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Join Date: Jun 2003

Posts: 845
#1

Changing to vented opti

11-25-2004, 10:11 PM

I was looking around at info on optisparks and came across this. It looks like a little bit cheaper way of converting to a vented system. Do you think it would work?

http://www.corvettedoctor.com/C4_optispark.htm

1994 Firebird Formula, M6, Fan switch, 160 thermostat, Pacesetter LT headers, Morosso CAI, TB bypass, True duals.
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pete

Registered User

Join Date: May 2003

Posts: 326
#2

11-26-2004, 10:29 AM

Yep, that's what I did a couple of years ago. I also drilled the weep hole in the water pump to 3/16", added a 90 deg. elbow and installed a couple of feet of 3/16" hose that I tied off to the steering rack. In this way when the pump fails, the coolant will be routed away from the opti to a noticeable spot.

The Old Guy! '94 z-28, m-6, t-tops, go-fast red, 316k. Now with '96 engine w/ Lt-4 hot cam, roller rockers, heavy duty timing chain, and Spec stage 2 clutch.
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