XEDE Engine Management System Available Soon!

[StephanieT]

don't you correct for temperature in your dyno's

Most dynos have a correction for humidity, temperature, and elevation. But not all do.

We have recorded a 12 hp difference on the same car, same temp, same elevation, but a huge difference in humidity. The 12% humidity run made more power than a run at 60% humidity.
Stephanie

 

[dread]

Does the dyno you use correct for these factors?

 

[desperado-c]

Does the dyno you use correct for these factors?

Stephanie can clarify, but it seems like most dynos done on turboed engine don't use a correction factor. I think this is b/c SAE standards don't provide correction factors for turboed engines, since the primary correction factor is for air pressure / altitude and turbos aren't significantly affected by this variable.

On the affect of humidity and temperature, I found this from Sport Compact Car:

The difference between 0 percent and 100 percent humidity is about a seven percent correction. A temperature change from 60 to 90 degrees, on the other hand, will have an effect of about a 2.8 percent. A difference in elevation from sea level to 5000 feet is worth a whopping 20 percent!
http://www.sportcompactcarweb.com/editors/technobabble/9907scc_technobabble/

So, it looks like the temp difference b/t TX in Dec (40's-50's?)and HI (70's-80's?) could by itself account for most of a 10hp lower increase in output.

 

[dread]

If they are not correcting their dynos than the numbers don't mean much as an absolute of whp.

 

[desperado-c]

If they are not correcting their dynos than the numbers don't mean much as an absolute of whp.

No, but the increase in output should still be relevant. I probably shouldn't have talked about the absolute numbers, but they just seemed to fit. Except for Nutari's memory of his base line.

 

[StephanieT]

Does the dyno you use correct for these factors?

Yes it does when the sensors go above a certain range. For low humidity and temps, no there is usually no correction. For really hot days, the CF can go to 1.05. All of our dyno sheets should have the CF used on it as well as run conditions. We use uncorrected or standard correction, but not SAE.
Stephanie

 

[dread]

Yes it does when the sensors go above a certain range. For low humidity and temps, no there is usually no correction. For really hot days, the CF can go to 1.05. All of our dyno sheets should have the CF used on it as well as run conditions. We use uncorrected or standard correction, but not SAE.
Stephanie

thanks for the clarification

 

[desperado-c]

Yes it does when the sensors go above a certain range. For low humidity and temps, no there is usually no correction. For really hot days, the CF can go to 1.05. All of our dyno sheets should have the CF used on it as well as run conditions. We use uncorrected or standard correction, but not SAE.
Stephanie

Okay, so when it will make the figures higher (low humidity and temps) there's no correction. But when figures will be reduced, the correction kicks in?

What kind of standard is that?

 

[StephanieT]

Industry Standard

 

[dread]

bottom line is the xede should be advertised by the power increase it produces and not by the 288 whp that was produced with the airbox open and a tmic installed.

 

[Nutari]

bottom line is the xede should be advertised by the power increase it produces and not by the 288 whp that was produced with the airbox open and a tmic installed.

Well then. About 40whp and 40wtq gain is good right?

(yippy)

 

[Captain KRM P5]

bottom line is the xede should be advertised by the power increase it produces and not by the 288 whp that was produced with the airbox open and a tmic installed.

the dyno on our store site and at BEGi's site was done at BEGi with stock TMIC, not upgraded.

we're still waiting for dynos from our other customers in other areas of the country to see how they match up.

 

[desperado-c]

Well then. About 40whp and 40wtq gain is good right?

(yippy)

No question. It would've been nice to see your baseline, but I'm sure the chilly temps in RI will produce at least that much, too.

 

[dread]

Well then. About 40whp and 40wtq gain is good right?

(yippy)

Yep its an awesome gain. I just wouldn't expect 288whp. All I am saying is when the xede was first released the claim was 288 whp and now it doesn't seem like it would be possible to get that without other mods. I just don't understand why the dyno's are not being corrected, I thought that was standard procedure and not only when it benefits the numbers. I am not saying that the xede doesn't produce awesome gains, or that it doesn't turn the ms3 into wild beast, but I am not sure what kind of numbers to expect if i installed one. When is this baby going to be plug and play, I need to unleash the beast.

 

[Nutari]

Yep its an awesome gain. I just wouldn't expect 288whp. All I am saying is when the xede was first released the claim was 288 whp and now it doesn't seem like it would be possible to get that without other mods. I just don't understand why the dyno's are not being corrected, I thought that was standard procedure and not only when it benefits the numbers. I am not saying that the xede doesn't produce awesome gains, or that it doesn't turn the ms3 into wild beast, but I am not sure what kind of numbers to expect if i installed one. When is this baby going to be plug and play, I need to unleash the beast.

from the two dynos, both are consistant.

40 hp and about 40-50tq.

 

[Captain KRM P5]

When is this baby going to be plug and play, I need to unleash the beast.

working on it feverishly

 

[maestro]

(whip) any progress?

 

[Mspeed3]

cant wait for plug and play

 

[nondual]

I won't even consider it till either Plug and Play or my warranty expires.

 

[4DRHTRD]

For the MS6 guys, I can now control MAP, MAF and boost with no fuel cut and a full 22 PSI (remember GT3071R kit) to redline. Next step is to lean it out and have it tuned by Shiv March 10th in So. Cal...

I'm trying to have my alky kit installed by then too so I can pump out over 400 WHP hopefully.