Dyno Results
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Joined: Nov 2002
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From: Fredericksburg
Re: Dyno Results
Originally Posted by 16g-95gsx
Those are the peakiest torque and HP plots I have ever seen.
VIP Boost
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From: SOVA
Re: Dyno Results
Originally Posted by HighPSI TSi Guy
To the fools saying he should tune for 12.5:1.. haha... get real.. put down the magazines and go do that to your own car and get back to me with what happens.
But all that being said, I dont agree about running 12.5 A/F on a turbo car.
Ive run those A/F and above plenty on my car (although it is built). Jeff runs that A/F on a stock KA and is making as much whp as Chris.
The reason for running richer is to either to give more room for error, and/or to quiet detonation by lowering combustion temps due to the vaporization of the excess fuel. If your timing maps are correct, you dont need to run rich.
Would I put a customer's car at 12.5:1? No. I would tune it for high 11s. And that is only to protect them from being ignorant. Ultra rich isnt good either.
Arguing aside, good numbers Chris. Nice to see on a stock bottom end.
Last edited by rhombus; Jan 10, 2006 at 12:35 PM.
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From: Fredericksburg/Blacksburg, VA
Re: Dyno Results
Yea I made an error, horsepower really was 442.99awhp. Looking at run #8 the tach signal was lost in the upper rpms, however if you look at the MPH based plot you can easily see HP still climbing. It reached a peak of 442.99awhp, and 369.64tq. Here is an overall view of all my runs:
You can see that I had some ignition issues apparently by how jagged some of the runs are.
You can see that I had some ignition issues apparently by how jagged some of the runs are.
VR-4ever
Joined: Jul 2003
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From: not in russia.
Re: Dyno Results
Hey 16G-gsx, congrats again on the good numbers for such short dyno time... on a stock motor. 
Good lord that's peaky. Well, while we are posting charts maybe you would like to disect this one:
Originally Posted by Captain RS
for the DSM!
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Re: Dyno Results
Originally Posted by rhombus
But all that being said, I dont agree about running 12.5 A/F on a turbo car.
Ive run those A/F and above plenty on my car (although it is built). Jeff runs that A/F on a stock KA and is making as much whp as Chris.
The reason for running richer is to either to give more room for error, and/or to quiet detonation by lowering combustion temps due to the vaporization of the excess fuel. If your timing maps are correct, you dont need to run rich.
Ive run those A/F and above plenty on my car (although it is built). Jeff runs that A/F on a stock KA and is making as much whp as Chris.
The reason for running richer is to either to give more room for error, and/or to quiet detonation by lowering combustion temps due to the vaporization of the excess fuel. If your timing maps are correct, you dont need to run rich.
Definitely not trying to start an argument...especially on this forum
There's MUCH more to tuning that just saying..."yeah xx.x:1 makes the most power on any engine."
According to theory and SAE articles, the lowered CC temperatures due to the vaporization of excess fuel are almost insignificant...and not significant enough to deter detonation. I'm not going to say anymore, because dragva isn't the place to argue this.
Jeff
wub wub wub wub
Joined: Sep 2004
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From: Virginia
Re: Dyno Results
Originally Posted by Jeff Taylor
Agreed...sort of.
Definitely not trying to start an argument...especially on this forum
There's MUCH more to tuning that just saying..."yeah xx.x:1 makes the most power on any engine."
According to theory and SAE articles, the lowered CC temperatures due to the vaporization of excess fuel are almost insignificant...and not significant enough to deter detonation. I'm not going to say anymore, because dragva isn't the place to argue this.
Jeff
Definitely not trying to start an argument...especially on this forum
There's MUCH more to tuning that just saying..."yeah xx.x:1 makes the most power on any engine."
According to theory and SAE articles, the lowered CC temperatures due to the vaporization of excess fuel are almost insignificant...and not significant enough to deter detonation. I'm not going to say anymore, because dragva isn't the place to argue this.
Jeff
Seriously though, that's unfortunate that you have to make a statement at the beginning and end of your post about how you don't want to argue and how this isn't the place to discuss intelligent information about tuning. lol.. I really wish the general population on this forum were at least out of high school--or AT LEAST had the mentality of someone that would be out of middle school.