is superchip working????
Thread Starter
|
Member
Joined: Jul 2001
Posts: 17
Likes: 0
From: ga
is superchip working????
i have a ? about my superchip.. i dont believe it is performing correctly, because i have dynoe's to prove it..
on 12/15/01 i had my 00 f-150 w/5.4l dynoed. the day i had it dynoed i had an air force1 intake and flowmaster catback exhaust installed. i dynoed 206.6hp and 273.9tq at the rear wheels.
today 08/10/02 i had it dynoed again with some additional mods. those mods being edelbrock headers,superchip,flex-a-lite part#270 dual electric fans. my dyno today yielded 204.7hp and 268.1tq up to 2nd gear. my hp's and tq went down in comparison to my last dyno up to 3rd gear for some reason.
with all the mods especially superchip i should have gained more than this. i feel more hp and torque when i am driving, as a matter of fact i now have serious wheel hop, which i did not have before, but the dyno does not show me this.
the superchip did remove the speed limiter and firm up the shifts, but why did i not benefit across the whole rpm range, like i should have. (this is probably a ? for mike troyer)!!
i probably should have had the chip reburned with the addition of the headers, but i have not done that yet, but i will!!
mike if you read this will you please give me some insight on this, and anyone else who might have some info on this will be much appreciated!!!
thanks,
jason g.
on 12/15/01 i had my 00 f-150 w/5.4l dynoed. the day i had it dynoed i had an air force1 intake and flowmaster catback exhaust installed. i dynoed 206.6hp and 273.9tq at the rear wheels.
today 08/10/02 i had it dynoed again with some additional mods. those mods being edelbrock headers,superchip,flex-a-lite part#270 dual electric fans. my dyno today yielded 204.7hp and 268.1tq up to 2nd gear. my hp's and tq went down in comparison to my last dyno up to 3rd gear for some reason.
with all the mods especially superchip i should have gained more than this. i feel more hp and torque when i am driving, as a matter of fact i now have serious wheel hop, which i did not have before, but the dyno does not show me this.
the superchip did remove the speed limiter and firm up the shifts, but why did i not benefit across the whole rpm range, like i should have. (this is probably a ? for mike troyer)!!
i probably should have had the chip reburned with the addition of the headers, but i have not done that yet, but i will!!
mike if you read this will you please give me some insight on this, and anyone else who might have some info on this will be much appreciated!!!
thanks,
jason g.
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hi Jason,
This one is very simple (I like that).
First, relax, don't worry about a thing. You *are* in fact making significantly more power now as a result of your modifications, and I'll explain the real problem here in a minute.
Don't worry about those dyno numbers, you can obviously *feel* the difference, and that clearly tells you that something is drastically wrong with those dyno comparisons.
Second, your dyno readings are obviously not any kind of "proof" with regard to the effects of your modifications in this situation. By the way, in general, chassis dyno's are not infallible dead-accurate machines, not by a *long* shot, though most people tend to think of them as such, it's a perfectly natural assumption to make. Their readings will differ widely from one day to the next, from one dyno to the next, and there are also potential issues with how each dyno pull is done, the operator's methods alone can have a significant impact on the "results." Inertia dynos are the most common type due to their low cost (relatively speaking, as far as chassis dynos go), and they aren't extremely accurate, you can get readings too low on normally-aspirated F-150's & readings too high on supercharged Lightnings, that is very typical with intertia dynos like Dynojet & other brands. They're great tools, don't get me wrong, but they are not infallible or dead-accurate, etc.
To get to the *real* problem here in your case, if you'll just take a look at your dyno dates, you'll see the answer lies right there. You did one dyno pull in Fall, and the other in Summer. There's a big difference in temperature, humidity, & barometric pressure from one day to the next, let alone from one SEASON to the next. Your second dyno session was in the heat of Summer, when you will *always* make significantly less power than you will in cooler weather. That is the single biggest problem here, it's a glaring difference that leaps of the monitor screen, which is why I said at the beginning, this is very simple to identify.
What you have done is the single most common mistake that people typically make (so don't feel alone!) in trying to judge the effects of modifications, and that is, comparing either power output or acceleration times on different days, instead of ina properly controlled back-to-back format on the same day, and preferably within about 90 minutes or so. We cannot ever make those kinds of comparisons on different days, as we'll never have the exact same conditions in terms of temperature, humidity, baro pressure, etc. on different days. That affects power output significantly, thus skewing the results, hence the reason why we can't make those kinds of comparisons. You can't even do that on 2 different Summer days, let alone try comparing the power made last Fall with the power you make in the middle of the hottest part of Summer.
You could make 30 more horsepower in the Fall over what you were able to make on Saturday in the middle of August, it's a big difference.
It's your comparison that is flawed, is the bottom line, that's all, and that's a simple mistake that a lot of people make. You're making significantly more power with your modifications that before your modifications, there's no 2 ways about that.
You do need to have that Superchip reprogrammed for those headers, but that isn't the real *root* of the problem here, the root of the problem is comparing power readings in Fall with power readings in Summer.
I hope that helps!
This one is very simple (I like that).
First, relax, don't worry about a thing. You *are* in fact making significantly more power now as a result of your modifications, and I'll explain the real problem here in a minute.
Don't worry about those dyno numbers, you can obviously *feel* the difference, and that clearly tells you that something is drastically wrong with those dyno comparisons.
Second, your dyno readings are obviously not any kind of "proof" with regard to the effects of your modifications in this situation. By the way, in general, chassis dyno's are not infallible dead-accurate machines, not by a *long* shot, though most people tend to think of them as such, it's a perfectly natural assumption to make. Their readings will differ widely from one day to the next, from one dyno to the next, and there are also potential issues with how each dyno pull is done, the operator's methods alone can have a significant impact on the "results." Inertia dynos are the most common type due to their low cost (relatively speaking, as far as chassis dynos go), and they aren't extremely accurate, you can get readings too low on normally-aspirated F-150's & readings too high on supercharged Lightnings, that is very typical with intertia dynos like Dynojet & other brands. They're great tools, don't get me wrong, but they are not infallible or dead-accurate, etc.
To get to the *real* problem here in your case, if you'll just take a look at your dyno dates, you'll see the answer lies right there. You did one dyno pull in Fall, and the other in Summer. There's a big difference in temperature, humidity, & barometric pressure from one day to the next, let alone from one SEASON to the next. Your second dyno session was in the heat of Summer, when you will *always* make significantly less power than you will in cooler weather. That is the single biggest problem here, it's a glaring difference that leaps of the monitor screen, which is why I said at the beginning, this is very simple to identify.
What you have done is the single most common mistake that people typically make (so don't feel alone!) in trying to judge the effects of modifications, and that is, comparing either power output or acceleration times on different days, instead of ina properly controlled back-to-back format on the same day, and preferably within about 90 minutes or so. We cannot ever make those kinds of comparisons on different days, as we'll never have the exact same conditions in terms of temperature, humidity, baro pressure, etc. on different days. That affects power output significantly, thus skewing the results, hence the reason why we can't make those kinds of comparisons. You can't even do that on 2 different Summer days, let alone try comparing the power made last Fall with the power you make in the middle of the hottest part of Summer.
You could make 30 more horsepower in the Fall over what you were able to make on Saturday in the middle of August, it's a big difference.
It's your comparison that is flawed, is the bottom line, that's all, and that's a simple mistake that a lot of people make. You're making significantly more power with your modifications that before your modifications, there's no 2 ways about that.
You do need to have that Superchip reprogrammed for those headers, but that isn't the real *root* of the problem here, the root of the problem is comparing power readings in Fall with power readings in Summer.
I hope that helps!