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What kind of RPM's can my car handle?

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Old Apr 20, 2003 | 09:02 AM
  #1  
XChris1632X's Avatar
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Joined: Dec 2001
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From: Plain City Ohio
Car: 83 Z-28
Engine: LG4 305
Transmission: T-5
What kind of RPM's can my car handle?

Just to know id like your guys opinions on how many rpms i can handle with my mods below. Also what are some opinions of people with similiar setups on where my best shift points are. Right now i shift at around 5,000 but im scared to go too much higher.
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Old Apr 20, 2003 | 11:55 AM
  #2  
XChris1632X's Avatar
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From: Plain City Ohio
Car: 83 Z-28
Engine: LG4 305
Transmission: T-5
no one knows? or has any opinions?
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Old Apr 20, 2003 | 12:50 PM
  #3  
Riley's35089rs+'s Avatar
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Joined: Nov 2001
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From: heartland
Car: 89rs (previous 2.8)
Engine: 406
Transmission: 700r4 (for now)
any specs on the cam? Are you talking safely? I dont think anyone is going to tell you to rev your motor over 5000rpm....depending on the cams heads bottom end ignition..on and on....why dont you tell us!
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Old Apr 20, 2003 | 01:28 PM
  #4  
rustybluebird's Avatar
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Joined: Aug 2002
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From: Canada
Car: 87 Firebird
Engine: 350, 416's, 230/230 cam, torkerII, q-jet
Transmission: T5
https://www.thirdgen.org/techbb2/sho...x+piston+speed
and try a search on max piston speed
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Old Apr 20, 2003 | 07:24 PM
  #5  
XChris1632X's Avatar
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Joined: Dec 2001
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From: Plain City Ohio
Car: 83 Z-28
Engine: LG4 305
Transmission: T-5
not sure about cam specs it was put in before i got it i just had a receipt for what it was.
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Old Apr 20, 2003 | 09:33 PM
  #6  
Beast5spdGTA's Avatar
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Joined: Jun 2000
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From: Palm Bay, FL
Car: 2007 Corvette Z06
Engine: LS7
Transmission: 6 speed
Whats the p/n for the cam then? I wouldn't be scared to go higher, just try it 5300, 5500, 5700.

The cars in sig. GTA not tuned for the cam, shifted at 5500rpm(rev limited) would've like to shift higher.

The TBI car I shift between 5000-5500 rpm.

The valvetrain will determine how high you would want to safely rev the engine. My TBI car with LT4 retainers, crane 981 springs, has seen 6000 rpm plenty of time and a one time 6500+ (probably around 7000) when my foot slipped off the brakes during a burnout contest. This engine has 115K miles on it.
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