My JLT vs. Airbox testing is complete, results inside.....

TheCPE

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and we can have CPE use his mainframe to calculate my shift times from the video,

Would be a very poor method. The fps of the video would not provide a high enough time resolution. However, if you had a Pbox like me you could know your shift times to the 1/100th of a second.

then apply a factor to carve out and downgrade the results further..

If you don't want to correct for DA than next time run the stock box in the morning and the JLT at the hottest part of the day...
 

Laloosh

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If you:

1) aren't familiar enough with the formulas that you need someone else to provide them I'm not sure how "useful" the next part can be.

2) can't google the formulas for yourself you surely wont be able to figure out how to apply them.

If you can't find or don't know the equation for WORK than this is a fruitless endeavor.

I'll help you out though, you are interested in change in kinetic energy. So if you can figure out the kinetic energy formula you are almost there.

No I would like you to specefically post your steps so I can specefically QUOTE you and show you the things you are not accounting for. Untill then, keep dodging.
 

MikeLTDLX

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If you don't want to correct for DA than next time run the stock box in the morning and the JLT at the hottest part of the day...

The reason that I reversed the process this time, was because on my first round of testing I was criticized for running the box first, then switching to the JLT later in the evening as it cooled down, and as I became more in the groove with the driving. I would have gladly started the day with the box. It does not matter to me. By the time the box went on, I was fully dialed in behind the wheel. Again, I put the JLT back on right after the box was on and went 118.73 on a 1.768, where I bogged. It is worth 10-15 hp. No more. And, when you are riding the line between 12's and 11's..that 10-15 hp matters.

Mike
 
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D.T.R

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The reason that I reversed the process this time, was because on my first round of testing I was criticized for running the box first, then switching to the JLT later in the evening as it cooled down, and as I became more in the groove with the driving. I would have gladly started the day with the box. It does not matter to me. By the time the box went on, I was fully dialed in behind the wheel. Again, I put the JLT back on right after the box was on and went 118.73 on a 1.768, where I bogged. It is worth 10-15 hp. No more. And, when you are riding the line between 12's and 11's..that 10-15 hp matters.

Mike

Do you power shift?
 

TheCPE

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No I would like you to specefically post your steps so I can specefically QUOTE you and show you the things you are not accounting for. Untill then, keep dodging.

I've already done that.


KE1 JLT = 1501890
KE2 JLT = 2493246
Delta T JLT = 4.234

HP = 313.5


KE1 box = 1450855
KE2 box = 2428285
Delta T box = 4.286

HP = 306.1

HP difference = 7.4

Those are the Kinetic energy calculations for both JLT and stock box. The mass used was 1750kg. You can find all the other numbers required on the time slips. Those would be the velocities at the 1/8 and 1/4 mile as well as the delta time.

Once you finish that, make sure to apply the DA calculation.


Goodluck :D
 

TheCPE

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Yeah!

If you don't understand math and physics just fall back on

"Oh yeah, I'll show you my taillights"

Since that says nothing at all about a part making power...
 

MikeLTDLX

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Yeah!

If you don't understand math and physics just fall back on

"Oh yeah, I'll show you my taillights"

Since that says nothing at all about a part making power...

I'm a lawyer, because I didn't understand math and physics.

Take away the DA corrections and you have nothing. I will tell you what, you can claim the JLT gave me 4.xx HP, if I can enter my corrected time on the Fastest 5.0 list.

Yep, I ran an 11.66 @ 122 today. Sounds like an even swap to me.

Mike
 

H-TownMachI

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Yeah!

If you don't understand math and physics just fall back on

"Oh yeah, I'll show you my taillights"

Since that says nothing at all about a part making power...

I would take real world results over some calculated bullshit anyway. Just sayin!
 

MikeLTDLX

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Can I bring my car with the stock airbox?

Hehehehe.....

All in good fun.

:rockon:

Go get that M6 car you used to have, and bring it down here like it was with the same level of mods mine has (I will give you the 3.73s and 28s). Now, that, would all be in good fun. ;-)

Mike
 

drewzx3

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Nice times mike. When we get some -da next year that thing is really going to fly. Found out how bad the temp kills et last weekend.
 

Ry_Trapp0

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look at that, some pretty solid testing that shows results in favor of the JLT, and the three stooges(well, moe and curly anyways) show up to spin their pseudoscience to "prove" it wrong:lol: go ahead guys, throw more ad hominems my way!

good stuff mike! certainly not perfect, but it really looks like you minimized a lot of the variables that you could, and produced some consistent results! best of all, you took the critiques offered by others to improve your method of testing!
did you notice any change in track conditions from morning through afternoon? tires were pretty consistent i'm sure since they're fresh. any significant wind throughout the day?(the more info the better!)

this isn't the nail in the coffin by any means(IMO), lots of work left to do before we see a clear answer, but certainly a step in the right direction as far as quality testing is concerned.
 
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