Here's the deal. Someone ran into the back of me today, almost lost another 7 https://www.nopistons.com/forums/pub...O_DIR#>/11.gif 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). https://www.nopistons.com/forums/pub...1047683894.gif Any help would be super greatly appreciated. https://www.nopistons.com/forums/pub...1047683894.gif

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

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 https://www.nopistons.com/forums/pub...#>/biggrin.png

How old are your cats?



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



J

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.

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

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.

put this on it!

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

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.

the street port system is much better https://www.nopistons.com/forums/pub...IR#>/bigok.gif



mike

I am running the street port duals on a 84 motor. Love it. Big difference from the Thermal reactor and stock system.

I am having a similar problem with my car. My car stalls out everytime i put it into gear and there is a TONE or smoke that comes out the exhaust pipe....like im talkin white clouds that strech 200feet and u cant see through it! Anyone know anything about this? Maybe i am buring oil.....any help plz send me a personal msg...thanks Cote https://www.nopistons.com/forums/pub...1047683561.gif

If I just buy the header, what size pipe should I run back to the muffler. As far as I know there are no noise laws where I live, and smog/emissions check doesn't matter. Also, since I'll just be buying the header, should I get the normal one or the street port one?

That depends on how much you want to spend at the muffler shop afterwards.

If you don't mind either way, then go with the street port header. If money is

an issue, then buy the smaller header. (It's less expensive to build a single pipe

exhaust than to build a dual pipe exhaust.) https://www.nopistons.com/forums/pub...R#>/tongue.png



Raul

Sounds like a blown water seal to me. Check your coolant level in the radiator. If its low, fill it and then try and drive it or run it for a while and see if it goes down again. If so, its most likely a bad water seal.



~T.J.

I let the car run for about 20 minutes last Wednesday and the problem seemed to be solved. So Friday I took the thermal reactor off and drove the car around for a day like that, WOW!! that thing is waayyy loud. I don't think anyone could handle driving with that noise and be sane. Anyway, I gutted the reactor and put it back on and when I get the insurance money, I'll be getting a Racing Beat header. With the rest of the money, a new paint job and if there's enough left I'll hopefully be getting a tune up on the carb. Thanks for all the help and suggestions!

Cool let us know.....



Raul