Sluggish '83 280ZX
08-03-2006, 11:08 AM
#1
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Join Date: Aug 2006
Posts: 4
Sluggish '83 280ZX
Hi,
I am here seeking general advice on my car. I have a 1983 N/A 280ZX that seems to be a little sluggish. The car makes no troubling sounds and is all stock. The car was owned by a relative and was well taken care of. It has 160K miles and just doesn't seem to have the ummpf that I "think" she should have. Where should I start?
I am here seeking general advice on my car. I have a 1983 N/A 280ZX that seems to be a little sluggish. The car makes no troubling sounds and is all stock. The car was owned by a relative and was well taken care of. It has 160K miles and just doesn't seem to have the ummpf that I "think" she should have. Where should I start?
08-03-2006, 11:33 AM
#2
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Join Date: Jul 2005
Location: Southaven Mississippi
Posts: 2,053
Hi, Welcome to Zdriver. Small things can make it run sluggish. Air Filter, Fuel Regulator brokin. Clogged injector's, ETC. I would recomend 98 Oct Gas with some injector cleaner. oil change, Remember the filter, Air Filter, and Oil Treatment. If she is still runin slugish let us know. Always the First Steps. Welcome to Zdriver.
08-03-2006, 11:40 AM
#3
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Join Date: Aug 2006
Posts: 4
Awesome thanks for the welcome.....I have a new air filter installed. Not sure about fuel reg I'll have to check that out. The highest octane gas I have availible to me is 91 shall I boost that with octane booster? Any reccomended octane booster and injector cleaners?
08-03-2006, 11:49 AM
#4
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Join Date: Apr 2005
Location: Temecula, CA
Posts: 5,485
If she hasn't had a tune up in a while give that a shot. plugs, plug wires, cap, rotor, fuel filter, etc...
87 octane is fine for a stock Z. If you have a lot of carbon build up in the motor then you might need a higher octane to combat the raised compression ratio. But I'd say 89-91 is the absolute MAXIMUM octane you will need. Octane booster is just going to set you back a few dollars. Its actually harder for you engine to burn that stuff, as is higher octane gas.
87 octane is fine for a stock Z. If you have a lot of carbon build up in the motor then you might need a higher octane to combat the raised compression ratio. But I'd say 89-91 is the absolute MAXIMUM octane you will need. Octane booster is just going to set you back a few dollars. Its actually harder for you engine to burn that stuff, as is higher octane gas.
08-03-2006, 01:08 PM
#7
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Join Date: Apr 2006
Location: Concord, NC
Posts: 2,827
I also agree with the above statments: Fuel Filter, Cap, Rotor, Plugs, Plug Wires, Oil, Oil Filter, O2 sensor (if not new), PCV, EGR, Adjust the valves (if it has never been done) Clean all the contacts on the electrical connectors and sensors, Replace vacuum hoses if needed, If an auto trans is in the car then tranny fluid and filter change ( if needed) 160,xxx miles maybe the AFM adjustment (Follow the sticky post), Air filter....hmmmm yeah that should keep you busy and shouldn't cost a whole lot either.
08-03-2006, 03:36 PM
#10
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Join Date: Apr 2006
Location: Concord, NC
Posts: 2,827
Originally Posted by z_lis
I'm just curious... what exactly is carbon build up? And how does it happen?
temperatures, lots of idling, fuel of higher octane than required, EGR
system (not necessarily with a problem), etc.
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