AMS's EVO X makes 480whp on pump gas and prototype turbo kit
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Joined: Jul 2008
Posts: 18
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From: Houston
I don't think you understand how horsepower and torque work, or are related to each other.
Fuel pressure = torque? Please don't mislead people who don't know any better.
I promise you that tuning is not the reason why it doesn't make as much torque as you think it should.
Do you understand that horsepower and torque are equations of each other?
Fuel pressure = torque? Please don't mislead people who don't know any better.
I promise you that tuning is not the reason why it doesn't make as much torque as you think it should.
Do you understand that horsepower and torque are equations of each other?
Fix your shortcomings and see where it leaves you.
(Torque x Engine speed) / 5,252 = Horsepower
..i dont think i like ams anymore lol
If you want 500 lb-ft of torque, that'll probably require in the ballpark of 35psi-40psi of boost. You better damn well be making more than 500hp if you're pushing that much boost.
If you're making 500/500, basically the turbo is choking on the top end.
If you're making 500/500, basically the turbo is choking on the top end.
Chris is right in his post....I think you are having a hard time understanding how Horsepower and Torque relate to each other. Horsepower is a function of torgue. Turning up the fuel pressure on this car is not going to make any improvements. The fueling issue we are having is a case of volume not pressure, we can crank the living daylights out of the fuel pressure but if the pump cannot keep up the supply it all means nothing. We need to put a bigger pump in the car.
As far as making a 500/500 car...Sure you can get a 500ft lb torque spike but it will result from a massive spike in HP sourcing from a massive spike in boost. Horsepower is a function of torque....you can't change one without changing the other....which you can see from your simple equation that you posted up.
I don't understand why you are asking him to "fix Your shortcomings" when you have not clearly explained yourself. Quite frankly we are reasonable people but that statement comes off as a bit insulting and disrespectful.
We are not here to belittle or talk down to anyone. We are here as a company of course to promote our product. We also are here to educate. If you would like to start an open, respectful conversation on the topic we will be more than happy to accommodate you. There is nothing we love more then a well educated customer. Our products are designed just for them. It is their critique that pushes us to be even better at what we do.
Eric
Last edited by AutoMotoSports; Oct 8, 2008 at 06:55 AM.
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Joined: Jun 2008
Posts: 48
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From: Miami
I think some people saw the graph too quickly, looked @ numbers and said "crap"
Yes, 343TQ is not something astronomical, let's not kid ourselves. But most graphs will show a beel shaped curve, with a peak in TQ and then some decline.
This trubo, thus far, is holding 340TQ from 4.7 to 7.5k RPM. That is.. something.
Peak #s dont win races, the curve does, and this curve holds the power all the way.
Yes, 343TQ is not something astronomical, let's not kid ourselves. But most graphs will show a beel shaped curve, with a peak in TQ and then some decline.
This trubo, thus far, is holding 340TQ from 4.7 to 7.5k RPM. That is.. something.
Peak #s dont win races, the curve does, and this curve holds the power all the way.
The waste gate spring we are running is a bit much for the setup currently. The boost starts off at 21 psi and is at about 26 psi by the time I let out of the throttle. Also, at about 7700 rpms, the car is excessively lean because of the stock fuel pump dropping pressure (12.5:1).
Because of the boost creep this thing makes power like a honda. However, the VE on this motor is very good to begin with so I am anxious to see what a 35R will do on this kit when the boost is held constant.
Because of the boost creep this thing makes power like a honda. However, the VE on this motor is very good to begin with so I am anxious to see what a 35R will do on this kit when the boost is held constant.
HP = Torque X RPM / 5252
dankaristo, I'll borrow Chris's X with it's "horrible" torque and race you. We'll see who wins.
Again, too many people are worried about peak numbers alone. Compare that torque curve to one on a stock turbo X. Sure, peak numbers might be more on the stock turbo one; but also take notice to how quickly that torque falls down and keeps falling down on the graph.
Bottom line - While peak torque may not be astronomical, that torque is held fairly consistantly throughout the rpm's. When something like this happens, you make HP!
dankaristo, I'll borrow Chris's X with it's "horrible" torque and race you. We'll see who wins.
Again, too many people are worried about peak numbers alone. Compare that torque curve to one on a stock turbo X. Sure, peak numbers might be more on the stock turbo one; but also take notice to how quickly that torque falls down and keeps falling down on the graph.
Bottom line - While peak torque may not be astronomical, that torque is held fairly consistantly throughout the rpm's. When something like this happens, you make HP!
If AMS can market a good solid fuel pump that isn't as loud as the Walboro but flows just as well or better and is a direct bolt in, you would have many buyers even if it was 50-100% more in cost.
There's more to it than "looking better". The "smoother" line gives a more accurate power number. The lower settings cause the erratic peaks(you can see in your graph) that boost the power reading inaccurately.
Former Sponsor
Joined: Sep 2005
Posts: 984
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From: Chicagoland
We use smoothing set on 3 which is right in the center of the range.