THE LATEST MAXIM (sorry for the caps)
#16
i read an article a year ago about running some old mopars and correcting hp to the modern method. they also corrected for elevation. the wedges and hemi's took a big hit,the small 4cyl turbo cars, omni, charger, took a much smaller hit, but still were affected in a negative way by the elevation. jeff did say "minimized" the affect,but 4000ft is always going to worse than sea level, no matter what ya brung
#17
Dave, that's because the truck making 8 PSI in Gulfport is going to be making 6 PSI in Denver, all things being equal. BUT if both of their gauges read 8 PSI, then they're both running 8 PSI of positive pressure over where the boost gauge is calibrated for 0 (typically sea level).
The boost gauge doesn't correct for altitude.
I think I was kinda vague in my original post. Sorry.
The boost gauge doesn't correct for altitude.
I think I was kinda vague in my original post. Sorry.
#18
I didn't say the supercharger would take as big of hit from the hight altitude, as a NA would.
(from previous example)
Natural Asp: 86.6% of sea level pressure
Supercharger: 91.3% of Supercharger sea level pressure
Its a relative reading, it is 8 (ie) psi higher than ambiant, that is how boost is rate, more over, it is the definition of boost.
I will look into the closed/open issue, I believe that my analogue still holds.
High altitude cars with superchargers such as Grand Prix GTP and Supercoupes can and do run smaller pulleys, than flat landers for drag racing. (Not from the factory, people put them on their cars)
(from previous example)
Natural Asp: 86.6% of sea level pressure
Supercharger: 91.3% of Supercharger sea level pressure
Its a relative reading, it is 8 (ie) psi higher than ambiant, that is how boost is rate, more over, it is the definition of boost.
I will look into the closed/open issue, I believe that my analogue still holds.
High altitude cars with superchargers such as Grand Prix GTP and Supercoupes can and do run smaller pulleys, than flat landers for drag racing. (Not from the factory, people put them on their cars)
#19
#20
2000,
Yeah, my original message was worded pretty badly. What I meant to say was that if Christy's truck's boost gauge reads 8 PSI in Denver, then her truck is getting the same exact amount of air into the engine as a truck at sea-level whose boost gauge is reading 8 PSI. She brings the truck down to sea level and the thing may generate 10 PSI.
By what I had written in my original, where I only mentioned lbs of boost and nothing about a GAUGE, your analogy/explanation was dead-on.
Sorry for the confusion. I know what I was THINKING and it's not what I ended up TYPING. :-/
Later!
Jeff S.
Yeah, my original message was worded pretty badly. What I meant to say was that if Christy's truck's boost gauge reads 8 PSI in Denver, then her truck is getting the same exact amount of air into the engine as a truck at sea-level whose boost gauge is reading 8 PSI. She brings the truck down to sea level and the thing may generate 10 PSI.
By what I had written in my original, where I only mentioned lbs of boost and nothing about a GAUGE, your analogy/explanation was dead-on.
Sorry for the confusion. I know what I was THINKING and it's not what I ended up TYPING. :-/
Later!
Jeff S.
#24
Hey,
What the heck is going on with these times? I took my 99 Lightning (bone stock) to Bandimere last summer and the best I could do was 13.99 @ 93 & change. Is anyone embellishing their times or is my truck a piece of junk?
Kent in Fort Collins, CO
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99 White Lightning
#2277, built 6-11-99
What the heck is going on with these times? I took my 99 Lightning (bone stock) to Bandimere last summer and the best I could do was 13.99 @ 93 & change. Is anyone embellishing their times or is my truck a piece of junk?
Kent in Fort Collins, CO
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99 White Lightning
#2277, built 6-11-99
#29
Thank you ever so wise Jeff! ^5 Hopin to make a decent showing no matter where I run but I am very, very excited about the possibilities at WFC not only for the truck but for new and continued friendships ...Anybody else going? Totally hoping for bragging rights though. *hehe* And OMG please don't convince Jas that I was talkin' smack, I was merely funnin' him, I think he knows how high I hold him when it come to matters of LIGHTNING.
Christy
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Christy Ann
WhiteLightninSVT
Christy
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Christy Ann
WhiteLightninSVT