hr404

Here's the deal. Someone ran into the back of me today, almost lost another 7 and luckily only my bumper was attacked. After going through all the paperwork and mess, I drove the car back home. Everything ran fine. A little later I decided to go off somewhere and the car ran great for about 10 minutes. Then.....after I start moving from a stoplight, the car stutters, then shuts off. I started it back up and it idled fine, but everytime I'd try to move, the car would try to cut off unless I totally gassed it. So the take offs are total crap. After I get up to about 4k rpm's, everything is running fine again, but when it's below that theres only hope that the car won't cut off. I replaced the fuel filter, the spark plug wires and put some fuel cleaner in the tank. I did't replace the spark plugs because no one that was open around this area carries NGKs, and I'd have to order them. Anyway, the car is a stock '80 with federal emissions (not that california mess). Any help would be super greatly appreciated.

Directfreak

I'd say your exhaust got clogged up somehow for the jolt.

hr404

How would I know if the system was clogged without taking it apart? I was getting ready to put a new exhaust system on the car anyway. Maybe now I have a good reason to do that

DJ Rotor

How old are your cats?



I'm going with Directfreak's theory. Replace the exhaust, since you wanted to anyway.



J

hr404

There are not any cats on the car, there's a heat exchanger and and thermal reactor. As far as I know those are still the original, they were on it when I bought it.

DJ Rotor

So it can't be a clogged cat then . . . next thing, I would check the entire fuel system. What exactly it could be I don't know. Definitely not ignition problem though. Sounds more like fuel starvation.



J

hr404

I checked the carb and its getting plenty of fuel. When I was out checking, there didn't much air coming out the muffler. I held my hands over both outlets and it sounded and felt like no back pressure building up. Should there be a lot of air coming out? I've visually checked the exhaust from the muffler up to the thermal reactor and I didn't see anything wrong.

Smog Fighter

put this on it!

DJ Rotor

There should certainly be a fair bit of air coming out.



Something is amiss with the exhaust. Weird though since you don't have cats.



J

hr404

If I get one of those racingbeat exhausts, which should I get? The street port or the regular high performance system. My engine is not ported if that has anything to do with it.