View Poll Results: Which would you prefer?
Voters: 12. You may not vote on this poll
If you were to choose, and why....
Thread Starter
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From: Lastweek Lane - Watertown, NY
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If you were to choose, and why....
The way I see it is:
Open road:
p:Car is under real load, free
c:You have to rely on your own ability, potentially unsafe/no private roads,
Dyno:
p:You have an expert to do everything for you, you get a fairly precise measure of output, safe/no other cars nor pedestrians, more control/less variables
c:Expensive/not local, car isn't under the same conditions that you're tuning for (brick no hit back.
Bad Bloodsport reference. I think you know what I mean.)
Others?
I've only been into tuning cars since I've had my WRX, which I bought on Oahu. There are no AWD dynos there, so all of our tuning was open road (mainly, for me at least, on an old abandoned runway on Wheeler Army Airfield, so there was no other traffic...some tuning on H2 (highway) though.)
Thoughts?
Open road:
p:Car is under real load, free
c:You have to rely on your own ability, potentially unsafe/no private roads,
Dyno:
p:You have an expert to do everything for you, you get a fairly precise measure of output, safe/no other cars nor pedestrians, more control/less variables
c:Expensive/not local, car isn't under the same conditions that you're tuning for (brick no hit back.
Bad Bloodsport reference. I think you know what I mean.)Others?
I've only been into tuning cars since I've had my WRX, which I bought on Oahu. There are no AWD dynos there, so all of our tuning was open road (mainly, for me at least, on an old abandoned runway on Wheeler Army Airfield, so there was no other traffic...some tuning on H2 (highway) though.)
Thoughts?
Dyno,
Pros:
-You can have more consistent runs, you can control air intake and temperature (or at least meter it)
-You have control over who is on the road with you (more safe)
Cons
-Paying to do runs
That is my outlook on it, in the end you may get better results on a dyno
WRX Rush
Pros:
-You can have more consistent runs, you can control air intake and temperature (or at least meter it)
-You have control over who is on the road with you (more safe)
Cons
-Paying to do runs
That is my outlook on it, in the end you may get better results on a dyno
WRX Rush
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I voted Dyno too, because
a) More accurate for tuning, so you don't have to worry about making a problem much worse
b) There is an AWD dyno in my state.
-Mike
a) More accurate for tuning, so you don't have to worry about making a problem much worse
b) There is an AWD dyno in my state.
-Mike
Thread Starter
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From: Lastweek Lane - Watertown, NY
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Oh, one more plus. You've got someone to blame if you take it to a dyno.
My biggest fear was imagining blowing my car up late at night, with no one to beat up except myself.
j/k
My biggest fear was imagining blowing my car up late at night, with no one to beat up except myself. j/k
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Dynos are great for safely and repeatedly testing and tuning a car. Where they lack IMO is simulating real world loads and conditions. There have been countless cars that have been tuned on a dyno only to find that they run poorly or detonate once they're on the real road. If I had the option, I'd take a closed private road over a dyno any day as long as I have access to the same instrumentation as I would on the dyno (wideband a/f, det cans, and road dyno software would help as well).
In the end, a good tuner will be able to tune pretty much as well on a dyno as on the road, but the tuning method might be a bit different.
-- Ed
In the end, a good tuner will be able to tune pretty much as well on a dyno as on the road, but the tuning method might be a bit different.
-- Ed
Thread Starter
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From: Lastweek Lane - Watertown, NY
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I'm excited that I will finally have the opportunity to take my car to a dyno here shortly, but mainly so that I can validate my techniques as well as learn. For instance, I'm pretty comfortable tuning a pure drag racing map, but I essentially leave the 10-70% columns alone. In the last few months prior to deployment, I had spent a little more time tuning those columns because I had the epiphany of what affect tuning the 0% mlp has on the rest of the map, but I still didn't give it my 100% attention since I more or less had the 'if it doesn't seem broke, don't fix it.' I was never satisfied with my mpg that my daily map had, though, and it seemed as though I always had to be paranoid about EGT's when I would be climbing up H2 or H3 (two of the three highways on Oahu that are pretty steep.)
I doubt that I will be setting aside a dyno 'slush' fund, though, after my first visit.
We'll see.
I doubt that I will be setting aside a dyno 'slush' fund, though, after my first visit.
We'll see.
Angry Dan
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Originally Posted by gpatmac
Oh, one more plus. You've got someone to blame if you take it to a dyno. My biggest fear was imagining blowing my car up late at night, with no one to beat up except myself. j/k
My biggest fear was imagining blowing my car up late at night, with no one to beat up except myself. j/kWhat?
There was at lest a 50/50 chance I would have been in the car with you.
anyways...
Dyno to get the base map....then road to fine tune.
Last edited by Mach5WRX; Aug 14, 2004 at 01:14 AM.
Thread Starter
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From: Lastweek Lane - Watertown, NY
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Your assistance didn't bring any responsibility....unless we were able to tune that crazy UTEC down to an 11.9. I'd give you all the credit.
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From: CP - Oceanside, CA
Car Info: X-Wing: ECU Tuner
Dyno's
Pro's:
Safer enviroment (number 1 reason), some have load bearing capabilty for tuning. That is about it... Numbers on the dyno are helpful, but not needed, there is enough information from the ECU that can give you a solid tune.
Cons:
Road tuning will give a more real world tune. Temperature changes, barometric pressure, wind currents around the car at different speeds, tuning for different styles of driving, different car setups, tuning for corners, drag, track etc... There is so much more that can be done on the road it is not even funny. You can not do most of this on a dyno.
The ultimate would be a private race track for tuning. Now that would be sick.
Cheers,
Bill Knose
Lead Tuner
I-Speed USA
Pro's:
Safer enviroment (number 1 reason), some have load bearing capabilty for tuning. That is about it... Numbers on the dyno are helpful, but not needed, there is enough information from the ECU that can give you a solid tune.
Cons:
Road tuning will give a more real world tune. Temperature changes, barometric pressure, wind currents around the car at different speeds, tuning for different styles of driving, different car setups, tuning for corners, drag, track etc... There is so much more that can be done on the road it is not even funny. You can not do most of this on a dyno.
The ultimate would be a private race track for tuning. Now that would be sick.
Cheers,
Bill Knose
Lead Tuner
I-Speed USA
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Originally Posted by skywalker
Dyno's
The ultimate would be a private race track for tuning. Now that would be sick.
Cheers,
Bill Knose
Lead Tuner
I-Speed USA
The ultimate would be a private race track for tuning. Now that would be sick.
Cheers,
Bill Knose
Lead Tuner
I-Speed USA
-- Ed
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