my engine not capable over 5000 rpm
Thread Starter
Junior Member
Joined: Sep 2009
Posts: 3
Likes: 0
Car: firebird 1990
Engine: 350
Transmission: t5
Axle/Gears: 9 bolts 3.70
my engine not capable over 5000 rpm
i have a problem whit my 350 engine whit miniram mid cam and edlebrock head t5 throttle body 58 mm headers 1 3/4 whit map senseur 27 lbs injector have no power over 5000 rpm what is a problem ???
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Joined: Nov 1999
Posts: 1,000
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From: Pennsylvania
Re: my engine not capable over 5000 rpm
What is the fuel pressure beyond 5000 rpm?
With a wideband O2 sensor in the exhaust, what is the air/fuel ratio beyond 5000 rpm?
Without this information, you're troubleshooting in the dark.
With a wideband O2 sensor in the exhaust, what is the air/fuel ratio beyond 5000 rpm?
Without this information, you're troubleshooting in the dark.
Thread Starter
Junior Member
Joined: Sep 2009
Posts: 3
Likes: 0
Car: firebird 1990
Engine: 350
Transmission: t5
Axle/Gears: 9 bolts 3.70
Re: my engine not capable over 5000 rpm
my fuel pressure is stable to 45 psi i have impression my pcm whit map is not calibrate (not chart ) for 5000 rpm
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