I have just recently purchased my first 1987 rx-7. The car runs, but the catalytic converter was taken off of the car. The problem that I am having seems to be that the car is not getting enough power. Could anyone maybe give me some suggestions???? Thanks.

 

Well first off, its a 2nd gen. And you are also going to need to give us some more details to help narrow down the problem.

 

The car has some problems with idling too high. It idles at 1000rpm.

 

Is the idle stable or rough? Is the car smoking? If so, what color is it and what does it smell like. Does it start ok? Also, invest in a Haynes manual. They are invaluable for these cars. Mine is actualy MIA at the moment, so I'm gonna have to locate a new one.

 

Can you be more specific about "no power"? Does it hesitate? Does it hit a wall at 3800? Make funny noises?

 

If this car is new to you then you should do a full 60k tune-up to it. That way you can know what kind of shape things are in.

Taken from the FAQ at the top of the 2nd gen section:
"Do a full 60K tune up, replacing all the fluids (including brake, clutch, tranny, engine oil, coolant, and rear end lube), spark plugs and cables, all filters (including fuel, oil and air), belts, any hoses that are leaking or bulging, and the O2 sensor. In addition if the car is more than 10 years old or has more than 120K miles on it, the Pulsation Dampener (or primary fuel rail and integrated Pulsation Dampener on 89-91 FCs) should be also replaced."

Also some other things that will not have the idle sitting right are:

1. Throttle Position Sensor. (TPS)
To set your TPS:
More info can be found here: https://www.rx7club.com/showthread.p...hlight=TPS+101

2. Your gas pedal cable slack.
3. Your cruise control cable slack.

As well as some more information about your car would help others figure out what is going on.

 

I also wanted to know if this particular rx-7 MUST have dual exhaust or if it CAN just have one???...we do still have to replace the muffler(s)...the car just runs really rough, i guess...we can't tell really until the muffler is fixed to see how much quieter it is...but it does stay running. But I would say it runs rather rough.

 

It would be rather helpful if you answered the questions that have been posed to you.

 

Seems to me the first thing you want to look for is a vacum leak. that can cause a high/rough idle. That can also lean out the fuel/air mixture which will cause a weak/low power situation.

Pull the plugs and see what they look like, listen for any hissing in the engine compartmennt, and do an oil change.

 

I think she meant it was her 'first' 7 I don't think she meant it was an FB.

 

Well, unless someone put a TRUE dual system on it, the way it should be set up is a single exhaust, going to a Y-pipe and then to two mufflers.

if you car is a Turbo, yeah, you can get a single exhaust setup.

If you car isn't turbo, you CAN do the same, but the car would be so loud that you'd get tickets left and right. Best to keep it with two mufflers.