LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

where's my rev limiter

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Old May 18, 2003 | 12:13 PM
  #1  
wannabe96z's Avatar
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where's my rev limiter

when i get up to about 4800 rpms my car starts acted like its missing really bad, could this just be me bouncing off my rev limiter, thanks guys
Old May 18, 2003 | 12:16 PM
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Rev limiter is close to 5900 rpm. Sounds like you have some ignition problem.... possibly optispark.
Old May 18, 2003 | 12:21 PM
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i thought it might be the plugs and wires which were originial, i bought new plugs for it and held off on the plug wires (which were 132$ from advance) the new plugs didn't help it, i tried putting some supreme gas in it and it seemed to take out a little bit of the miss (is this normal), i just don't know where to go from here, thanks
Old May 18, 2003 | 12:35 PM
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Originally posted by wannabe96z
i thought it might be the plugs and wires which were originial, i bought new plugs for it and held off on the plug wires (which were 132$ from advance) the new plugs didn't help it, i tried putting some supreme gas in it and it seemed to take out a little bit of the miss (is this normal), i just don't know where to go from here, thanks
changing the plugs is only half the battle, need to change the wires to, change the fuel filter, just do the basic tuneup first then see how it runs, anything past 6000 rpm your topping off your power anyways
Old May 18, 2003 | 12:35 PM
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i thought the rev limiter was at 6200 although in first gear you appear to hit rev limiter at wot earlier because the guage cant keep up with the engine
Old May 18, 2003 | 12:37 PM
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Originally posted by dis3as3d
i thought the rev limiter was at 6200 although in first gear you appear to hit rev limiter at wot earlier because the guage cant keep up with the engine
Gauges can't keep up with the engine...

They can keep up with the engine, it's just that they're off about 200-300 rpm on our cars. So you're right, if your car is reading 6 grand, you're closer to 5700-5800.
Old May 18, 2003 | 01:02 PM
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oh im no expert i just read on another fbody website faq:

Why does my car seem to hit a rev limiter around 5800 RPM in first gear and closer to 6200 RPM in all other gears?

The factory tachometer in these cars is slower than the engine is, so when accelerating in first gear at wide open throttle, your tachometer cannot keep up with the engine RPMs, and is actually a couple hundred RPMs behind when you first hit the rev limiter. Because it takes longer for the engine to get that high in other gears, this shouldn't happen. Since this isn't really a problem, there's nothing you can do about it other than practice. With some practice, you will learn to listen to your engine and know when you're about to hit the limiter in first gear.
Old May 18, 2003 | 01:06 PM
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Every single LT1 I've driven and took to such RPMs was hitting the rev limiter just a little over 6K in first gear. Besides, that statement is self-contradictory since according to it, the tach should be able to catch up with the engine in 2nd/3rd gear so it should be really at 5900 when it hits the rev limiter, not 6200.
Old May 18, 2003 | 01:07 PM
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ok guys i think i'm gonna go get new plug wires and maybe a distributor cap, does anybody know where i can get wires cheaper than the 132$ advance wants for acdelco
Old May 18, 2003 | 01:31 PM
  #10  
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From: Monroe.LA
I got taylor wires from summit for $60
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