I know i need to replace 1 of 2 parts...but which one I am not sure of. I want to get some opinions.
Symptoms. I've always suspected clogged cats. I have a stock H-pipe on my car because i hated my off-road pipe. Unfortunately i ran it without the smog pump for some time. The engine seems slow to rev and feels like i am losing power somewhere. I did a vac test and everything seemed fine. 25 inHg at idle, drops to 20 with a blip and then rises up. Same if i hold 2000 RPM. Car has a stock cam BTW.
As for the booster. It feels inconsistent. It def feels like it has more assist at lower RPM. I stepped on the brakes hard yesterday at 4000RPM and it felt like i was using all leg muscle. But ifi push the clutch in and let the RPM's drop and hit the brakes, i have assist. I've tested the booster by hooking a vac pump and gauge directly to it. It holds vac, doesn't leak down over time and feels like it does at idle.
SO.....new booster time (it's a used 1995 SN95 booster) or replace the h-pipe? I prob want to do the h-pipe anyway. Been looking for a catted mod-pipe on CL or for sale locally. If i cant find one i'm sure i can grab a stock h-pipe to use. Or does this sound more like a booster issue?
I have an autometer boost/vac gauge that i didn't really want to install because i don't have a blower yet, but that vac portion of the gauge could prob come in handy now to see my vac reading at 4000 RPM when i've lost my assist
Symptoms. I've always suspected clogged cats. I have a stock H-pipe on my car because i hated my off-road pipe. Unfortunately i ran it without the smog pump for some time. The engine seems slow to rev and feels like i am losing power somewhere. I did a vac test and everything seemed fine. 25 inHg at idle, drops to 20 with a blip and then rises up. Same if i hold 2000 RPM. Car has a stock cam BTW.
As for the booster. It feels inconsistent. It def feels like it has more assist at lower RPM. I stepped on the brakes hard yesterday at 4000RPM and it felt like i was using all leg muscle. But ifi push the clutch in and let the RPM's drop and hit the brakes, i have assist. I've tested the booster by hooking a vac pump and gauge directly to it. It holds vac, doesn't leak down over time and feels like it does at idle.
SO.....new booster time (it's a used 1995 SN95 booster) or replace the h-pipe? I prob want to do the h-pipe anyway. Been looking for a catted mod-pipe on CL or for sale locally. If i cant find one i'm sure i can grab a stock h-pipe to use. Or does this sound more like a booster issue?
I have an autometer boost/vac gauge that i didn't really want to install because i don't have a blower yet, but that vac portion of the gauge could prob come in handy now to see my vac reading at 4000 RPM when i've lost my assist