STUPIDITY CAUSES CANCER


86-88 air pump is used for opening of 3rd and 4th port connected to ACV
89-91 air pump is used for opening of 5th and 6th port


for 86-88 when you get headers from lets say racing beat they give you a ACV (air control value) block off plate. but if you order it from say some company like pace setters you get jack shit.

for 89-91 you dont need a acv block off plate becuase your 5th and 6th port works off the air pump.

 

when was the last time the clutch was replaced?

 

You are very right, STUPIDITY CAUSES CANCER, but What type of cancer? I talked without knowing

 

I have no idea how old the clutch is, has no slip or problems with it. NO air pump, but does have a block off plate.

 

try checking your AFM (air flow meter) or even your air filter to see if its not getting enough air in the higher rpms so then its not pumping in more fuel.

 

Ok so is this RPM related at all or just 5th gear or what? Go out and test it. Get to 4k in any (every) gear and floor it. You should have no problems and go right to redline. I can not tell you how it will feel under 4k because I never drove a car with wired aux. ports but know they do lose a little low end. Just tell us exactly what it does when you do this. And just so you know, most NAs don't have much in 5th to begin with.

Now, could it be ignition related? Possibly bad plugs/wires? Maybe one wire isn't all the way on? A coil not firing?

So the concern you have is simply an extraordinary lack of power, right?

If it isn't anything to do with the intake or exhaust being clogged, it pretty much has to be a fuel, ignition, or compression issue.

 

It takes forever to get to redline in 3, and 4 would take all night.

 

is their any mods done to the car other than wired ports? 5th gear is a cruise gear. their is no true power in a n/a in 5th.

 

I know it is od, but it should hold its speed. 2.25 inch exhaust with no cats, single pipe with a muffler. Cone filter, and no power steering or ac, and no air pump.

 

Your right it should hold its speed. Your car has to weigh like nothing too. Have you had a compression test done? Any idea on the mileage of that motor? Might be a good idea to do the ATF treatment on it if it has alot of miles.