What #s are you seeing for lbs of airflow..
#3
all of these are at 6000rpm:
stock 01 with LM and lid did 35-36lb/min
my z06 cam'med car did 39lb/min
tr224 on stock headers did 35-36lb/min
same tr224 on LT's did 38lb/min
228/.575 mac mids did 41lb/min
F13 on LT's did 44lb/min
all forged huge cam 347, 90/90 with everything, 52lb/min
383 on ls6 intake did 63lb/min
and for fun: STS w/ T67Q on 4.5psi maxed out the MAF readings by 4800rpm
stock 01 with LM and lid did 35-36lb/min
my z06 cam'med car did 39lb/min
tr224 on stock headers did 35-36lb/min
same tr224 on LT's did 38lb/min
228/.575 mac mids did 41lb/min
F13 on LT's did 44lb/min
all forged huge cam 347, 90/90 with everything, 52lb/min
383 on ls6 intake did 63lb/min
and for fun: STS w/ T67Q on 4.5psi maxed out the MAF readings by 4800rpm
#4
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From: Port Tobacco, MD
Here are my results....
Stock car with mods - 32-38lbs/min
Bolt on + cam = 38-41lbs/min
Head and Cam = 42-46lbs/min
Head and Cam + 90/90 = ~50lbs/min
Last night my new combo 346 H & C + 90/90 went almost 60lbs/min....59.xx
Phil
Stock car with mods - 32-38lbs/min
Bolt on + cam = 38-41lbs/min
Head and Cam = 42-46lbs/min
Head and Cam + 90/90 = ~50lbs/min
Last night my new combo 346 H & C + 90/90 went almost 60lbs/min....59.xx
Phil
#5
Head/Cam (230-236 112 lsa XE-R)
90/90
Stock bottom
50-51 lb min.
But you know that didn't you Phil.
Built and Tuned by Phil - ProSteet MotorSports
Thanks for the beast Phil.
90/90
Stock bottom
50-51 lb min.
But you know that didn't you Phil.
Built and Tuned by Phil - ProSteet MotorSports
Thanks for the beast Phil.
Last edited by WKMCD; 01-31-2006 at 11:34 AM.
#7
Temperature has a huge effect on what the MAF sees as lbs/min.
Colder air is much heavier.
Knowing Lb/min values without knowing the air temp they were tested at doesn't mean a great deal.
Colder air is much heavier.
Knowing Lb/min values without knowing the air temp they were tested at doesn't mean a great deal.
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#9
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From: Port Tobacco, MD
Originally Posted by white2001s10
Temperature has a huge effect on what the MAF sees as lbs/min.
Colder air is much heavier.
Knowing Lb/min values without knowing the air temp they were tested at doesn't mean a great deal.
Colder air is much heavier.
Knowing Lb/min values without knowing the air temp they were tested at doesn't mean a great deal.
Phil
#10
I am also running w/o a maf and am just using straight tubing from the lid to the tb (thanks to home depot motorsports!). I have seen up to 44 lb/min at the end of the track, mods are in my sig.
#15
it is derived, that's why it has no limits on final value, and that's a good thing
you might not believe it, but the engine does, so i would take its 'word' for the correctness of it.
you might not believe it, but the engine does, so i would take its 'word' for the correctness of it.
#16
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From: Port Tobacco, MD
Originally Posted by RedHardSupra
it is derived, that's why it has no limits on final value, and that's a good thing
you might not believe it, but the engine does, so i would take its 'word' for the correctness of it.
you might not believe it, but the engine does, so i would take its 'word' for the correctness of it.
Phil
#17
There is definitely a correlation between this value and your engine's output, but I'd really like to know how it is derived.
I certainly wouldn't consider my car a freak by any means...and I certainly don't think my numbers mean I could run with a cammed or h/c car.
I certainly wouldn't consider my car a freak by any means...and I certainly don't think my numbers mean I could run with a cammed or h/c car.
#18
I had been thinking you guys were talking of actual measured values. My own opinion of a derived value like that is that it's pretty much worthless no matter how it was derived. A derived method would have to assume too many things and would be subject to error stacking like everything else that uses multiple inputs to derive something.
That's just me thinking. I shouldn't have posted here without knowing what you were talking about.
That's just me thinking. I shouldn't have posted here without knowing what you were talking about.