GForce Chips - Do they work?!?!
01-06-2011, 04:33 PM
#22
So the percentage of drivetrain loss for a factory truck is 120/150=.86
1-0.86=0.14 or a 14% loss
Now taking their number of 140, this would equate to an at crank hp of 163 assuming the same 14% loss and ALL other conditions being exactly the same.
I agree that the cost for the product seems high for the gained HP. But assuming that a truck with 150hp will see the same 21hp loss as say a 1000hp truck with the same driveline is incorrect.
1-0.86=0.14 or a 14% loss
Now taking their number of 140, this would equate to an at crank hp of 163 assuming the same 14% loss and ALL other conditions being exactly the same.
I agree that the cost for the product seems high for the gained HP. But assuming that a truck with 150hp will see the same 21hp loss as say a 1000hp truck with the same driveline is incorrect.
Look, I'll go so far as to agree that there's another force to consider in determining drivetrain power losses. Where I remain highly skeptical is in regards to the actual significance of it. I mean what are we talking about numbers wise anyway? Or rather, just how much difference does that really make?
Let's try an experiment.
O.k. then, whe'll use the factory HP specs of 150 HP at the crank. And an actual dyno test measured 129 HP at the rear wheels. What's the real percentage difference there? Let's see 150 x 86% = 129. So exactly a 14% loss there, we know that much is true.
Alright so what's that work out to for a 1000 HP engine through the same drivetrain to the rear wheels? Let's see 1000 x 86% = 860. So all the sudden it takes 140 HP to turn the same drivetrain at 5000 rpm. Seriously? That's 119 HP more than the 150 HP engine. Hell, you've just lost a whole engine's worth of power right there!
There's no fricken way!
Let's try the opposite approach.
O.k. then, a 15 HP engine. Same drivetrain, same rpm. 15 x 86% = 12.9. So now it only takes 2.1 HP to turn the drivetrain at 5000 rpm. What? Are you kidding me? It's only 15 HP! It shouldn't even be able to turn the drivetrain at 5000 rpm.
Something just don't jive with the whole percentage loss scenario.
It's gotta be BS!
I'm jumping on the "there is no mathematical formula for determining crank vs. rear wheel HP" band wagon. This is suddenly no longer interesting. See ya!
Last edited by MudHippy; 01-06-2011 at 04:37 PM.
01-06-2011, 05:51 PM
#24
Registered User
yup; pure junk, and anyone trying to convince you otherwise is full of it
the computer system in these trucks is so basic that there literally is no room for a computer programming upgrade without replacing the computer with new stand-alone systems
it would be like trying to supe up a calculator... why? there's really nothing that's so complicated that you have to improve upon it
the computer system in these trucks is so basic that there literally is no room for a computer programming upgrade without replacing the computer with new stand-alone systems
it would be like trying to supe up a calculator... why? there's really nothing that's so complicated that you have to improve upon it
i put games on my TI-89.
01-06-2011, 06:33 PM
#25
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I don't see where magical HP comes from without introducing more fuel and air. I've been modding cars for almost 20 years and I've never seen a chip create HP on a naturally aspirated engine. Might as well slap a throttle body spacer on and a Tornado thingy in the intake.
01-06-2011, 07:02 PM
#26
Registered User
BMW owners use with quite good results these: http://www.turnermotorsport.com/html...p?subcat_id=74
with 245,000 miles on mine, I am too scared to try one though.
These are also popular with the BMW crowd: http://www.dsylva-tech.ca/
with 245,000 miles on mine, I am too scared to try one though.
These are also popular with the BMW crowd: http://www.dsylva-tech.ca/
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