LS1TECH - Camaro and Firebird Forum Discussion
SBC-BBC-LT1-LT4 PERFORMANCE
LT1-LT4 Modifications
Need AFR. for my LT1

LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Need AFR. for my LT1

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Old

May 5, 2012 | 10:39 AM

#41

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Quote:

Originally Posted by F0x Slaughter

Stock Pressure is 43.5psi. LSx pressure is 58psi.

Thank you

I think my new gauge is calibrated wrong it is reading 20psi unhooked. Hmm.

Old

May 5, 2012 | 11:15 AM

#42

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It should be ~43 with key on car off. Idle it should drop down 3 - 7psi so anywhere from 36 - 40psi at idle.

So if its reading 60psi at idle and 20psi not hooked up. Its obviously off by 20psi.

When you bump up pressure a smaller injector acts like a bigger injector because when it opens more fuel is flowing through because there is more pressure.

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May 5, 2012 | 01:46 PM

#43

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36 is kinda low obviously not enough pump if it hits that.

Old

May 5, 2012 | 02:26 PM

#44

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I just dont know why my hypertech guage is starting 20 PSI high. Is it broken?

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May 5, 2012 | 02:34 PM

#45

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Probably because its hypertech? Commonly called HyperCrap.

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May 5, 2012 | 04:10 PM

#46

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Correction to my numbers:

404 RWHP
440 RWTQ

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May 5, 2012 | 04:28 PM

#47

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How much it drops from motor off/key on to idle depends on the cam.

Old

May 5, 2012 | 04:40 PM

#48

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Quote:

Originally Posted by Puck

How much it drops from motor off/key on to idle depends on the cam.

True.

Due to the fact of different cams creating different vacuums.

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May 6, 2012 | 05:08 AM

#49

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Quote:

Originally Posted by gregrob

Maybe if we knew what in the hell you were talking about.

This is the most intelligent post so far in this thread.

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30, afr, air, check, fuel, good, idle, injector, lb, ls1tech, lt1, ratio, reading, running, turbo

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