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> I SAID N/C!
> :)
> any ideas?

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Look for full throttle EGT in the 1500 to 1600 range. Around town
cruising will be in the 900 degree range. These are fahrenheit numbers.
Be sure to realize timing as well as air fuel ratio will both affect EGT
readings. As you lower your timing the EGT temps will rise because more
of the combustion is taking place in the exhaust instead of the
combustion chamber. The rverse is also true. advance the timing too much
and the EGT temps will go down because the flame has burned out in the
combustion chamber. The good thing is that your motor will almost
definetly knock from detonation (not really a good thing) from
advanced timing before it will actually show up in the EGT readings. God
luck.
greg
71 240z
 

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Discussion Starter · #3 ·
n/c = no comments or no click?
for me? no comments

ehhh I am getting 1400 at full throttle I thought it should be 1200
so 1400 is ok then?

In terms of timing I let the ECCS and knock sensor do the job IOW it is at the factory 20 deg.

Thnks for the reply

Carlos

> You have to click to respond!!
> Look for full throttle EGT in the 1500 to
> 1600 range. Around town
> cruising will be in the 900 degree range.
> These are fahrenheit numbers.
> Be sure to realize timing as well as air
> fuel ratio will both affect EGT
> readings. As you lower your timing the EGT
> temps will rise because more
> of the combustion is taking place in the
> exhaust instead of the
> combustion chamber. The rverse is also true.
> advance the timing too much
> and the EGT temps will go down because the
> flame has burned out in the
> combustion chamber. The good thing is that
> your motor will almost
> definetly knock from detonation (not really
> a good thing) from
> advanced timing before it will actually show
> up in the EGT readings. God
> luck.
> greg
> 71 240z
 

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Registered
Joined
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1,826 Posts
Add more boost!!

> n/c = no comments or no click?
> for me? no comments

> ehhh I am getting 1400 at full throttle I
> thought it should be 1200
> so 1400 is ok then?

> In terms of timing I let the ECCS and knock
> sensor do the job IOW it is at the factory
> 20 deg.

> Thnks for the reply

> Carlos

1400 degrees is definitely safe. I'd try to get a little closer to 1500 for best performance. Either lean out the motor a little if you can or add boost a pound at a time to get the temps where you want them. Be careful of engine knock, get a warning light or something like that if you can so you can hear the knock. A motor will start to knock way before you can hear it by ear. By the time it is bad enough to hear by ear you have probably already done the damage. Remember, the knock sensor is a safety device, not a tuning device. Don't depend it to keep your timing in the safe range.
greg
71 240z
 
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