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I wanted to get rid of the smog pump (not running cats/no emissions). I had heard that there are some plugs that go in the backs of the cylinder heads and are there vacuum lines associated with them? Are they supposed to be plugged? If so , with what? Any ideas info is appreciated.
Thanks.
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you can just take the pump off and leave everything else on.You'll be fine.
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85
85 mustang: parts car for now
Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
I think you mean you can bypass the pump without taking anything off.
There are two holes on the back of each cylinder head. You need to plug them when you remove the tube that goes from one head to the other. These holes are pre threaded but are a real bitch to get clean if you have excessive carbon build up.
Theres one vacuum line on the underside of the upper intake plenum that needs capped. You can buy caps at any parts store. This is the only vacuum source for the smog system.
You will have to plug the tube on the H-pipe. It feeds exhaust to the intake system. You can either plug one of the smog pump lines or plug it down where it comes off of the H-pipe.
You can leave the EGR where it is or remove it but then you have to plug the hole on the EGR spacer. Make or buy a plate to cover it.
There's some junk on the passenger side strut tower you can remove too. Make sure you know what your cutting out as one is a A/C WOT relay.
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1991 LX 5.0 5Spd
Cobra 4 Wheel Discs/5 Lugs
Saleen SC Wheels w/ 255 Fronts, 275 Rears
Tremec T5
31 Spline Eaton Posi w/ 3.73s
MM Suspension
Stock 5.0 w/ B Cam, Long Tubes, and Pulleys
Dyno Numbers Pending Break In
dont buy the smog pump delete bracket waste of money just buy a shorter belt 770k6
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smog pump eliminator
