Dyno Graph Results - Uncorrected? SAE? STD? What Do You Guys Like To See?

R1000K3 · 12-30-2010, 02:10 AM

Quote:

Originally Posted by TrackRat

You disagree with what, my preference in dyno testing? <LOL>

Your POV is nice except the data is not accurate because the conditions are not controlled so it's all a waste of effort. Oh, and BTW the OP's question was what dyno test data I would like to see...

I disagree in that other methods than the one you suggest is a waste of time and effort. Conventional dyno runs are sufficient in most cases when optimizing an engine and just a few will have access to a perfectly calibrated stand alone rig. I second your opinion that the power figures the way they are normally produced are incorrect. Dynojet power figures can easily differ 5% or more for the same engine at different Dynojet facilities or occasions.

Iwantm3 · 12-30-2010, 02:15 AM

Quote:

Originally Posted by ETS Michael

The car is at the shop still, I had to drive my daily home. I will take some pictures tomorrow if we get everything buttoned up

The intakes on my car are the prototype the final intakes will most likely be cast.

Michael

Iwantm3 · 12-30-2010, 02:17 AM

So I would be able to buy that and then buy the adapter when it comes out ?

Iwantm3 · 12-30-2010, 02:44 PM

Etssssssss where are you lol

ETS Michael · 12-30-2010, 02:54 PM

We have no race gas here... leaving now to go get some

Time to make some numbers.. I have to take off early so i'm not sure if the graph will be today or tomorrow at this point. Depends on when we get race gas.

dzenno · 12-30-2010, 03:34 PM

Quote:

Originally Posted by TrackRat

Unfortunately without controlling the test parameters, the data is inaccurate and worthless at best. A change of 1 degree C in I/C temp can change the density enough to make a 5-10 HP diff. Nothing is controlled in chassis dyno testing so it's a waste of time. You can make 5 pulls on the same car with no changes and get five different corrected SAE power results. You can't even use the power delta because there is no control over the test conditions. People are just kidding themselves when they try to use an improper tool for the job.

That being said, I know people aren't going to change their beliefs so I don't want to hi-jack this thread with discussions about the pitfalls of chassis dynos because this is all established fact. The OP asked what we wanted to see and I answered. Everyone is entitle to state what they want to see for dyno data.

Did they "have to" include the word "realistically" in their question? Honestly, where do you find a lab environment like that

but good points for sure, I don't disagree

McMuffin · 01-05-2011, 07:20 PM

Quote:

Originally Posted by ETS Michael

We have no race gas here... leaving now to go get some

Time to make some numbers.. I have to take off early so i'm not sure if the graph will be today or tomorrow at this point. Depends on when we get race gas.

Race gas must be really far away from you guys

ETS Michael · 01-05-2011, 07:42 PM

Super Far

I'm waiting for product pictures before I post up all the graphs.

We ended up making 400/430 on pump gas (92 octane) - I'm going to screw around with the race gas map again. We made 428/471, but we have more left in it.

Gotta love bolt ons

This car responds awesome. We have full step by step dyno graphs, just need to get our product pictures done and get things going

Thanks!

Michael

mwscircle · 01-05-2011, 07:45 PM

pics hurry. Need to spend my x mas spending money that I didnt dump on GF!!! QUICK!

Iwantm3 · 01-06-2011, 12:36 AM

woo hoo, can't wait for the pics

TwinTurboXI · 01-06-2011, 01:13 AM

Quote:

Originally Posted by Iwantm3

fuckkkkkkkkkkkk I hate teaserssss , oh and make that exhaust just a little under 1400 and you'll sell a lot of them I guarantee that =D

$1400? That would put it right at the top pricing tier of exhausts for our cars...

Iwantm3 · 01-06-2011, 01:40 AM

Quote:

Originally Posted by TwinTurboXI

$1400? That would put it right at the top pricing tier of exhausts for our cars...

1400 is too much, vanguard now you can get for 1200 shipped, 1000 shipped if it's a good quality exhaust is an OK price.
Why I said under 1400 because he said 1400-1500 lol

Aridk · 01-06-2011, 02:38 AM

Still waiting for a picture of that new intake!

Iwantm3 · 01-06-2011, 02:54 AM

I've seen it, looks fucking banging bro

335xiRT1 · 01-06-2011, 07:10 PM

bump for new product pics

BrianMN · 01-06-2011, 07:55 PM

I personally like the idea of corrected dyno numbers. That is, if I understand it correctly. How I understand, corrections make up for temp, humidity, baro, etc. So, if corrections are used, a car with 350hp in 20*F dry air at Sea level, that same car will have 350hp on 90*F humid air at 1000ft.

Poor conditions (High heat, humidity, elevation): the corrections will bring HP up.
Better than Ideal conditions (very Low temps, dry, sea level) the corrections will bring the HP up.

Is that accurate?

12-30-2010, 02:17 AM	#25
Iwantm3 Banned 38 Rep 1,284 Posts Drives: 335i M sport Join Date: Mar 2009 Location: US AND A I likeeeee iTrader: (1)	So I would be able to buy that and then buy the adapter when it comes out ?
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12-30-2010, 02:44 PM	#26
Iwantm3 Banned 38 Rep 1,284 Posts Drives: 335i M sport Join Date: Mar 2009 Location: US AND A I likeeeee iTrader: (1)	Etssssssss where are you lol
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12-30-2010, 02:54 PM	#27
ETS Michael Major 80 Rep 1,155 Posts Drives: 335i Join Date: May 2009 Location: Vancouver, WA iTrader: (4)	We have no race gas here... leaving now to go get some Time to make some numbers.. I have to take off early so i'm not sure if the graph will be today or tomorrow at this point. Depends on when we get race gas.
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01-05-2011, 07:42 PM	#30
ETS Michael Major 80 Rep 1,155 Posts Drives: 335i Join Date: May 2009 Location: Vancouver, WA iTrader: (4)	Super Far I'm waiting for product pictures before I post up all the graphs. We ended up making 400/430 on pump gas (92 octane) - I'm going to screw around with the race gas map again. We made 428/471, but we have more left in it. Gotta love bolt ons This car responds awesome. We have full step by step dyno graphs, just need to get our product pictures done and get things going Thanks! Michael
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01-05-2011, 07:45 PM	#31
mwscircle Banned 69 Rep 3,409 Posts Drives: e90, e30, 993, etc Join Date: Feb 2009 Location: San Diego/Indonesia iTrader: (5)	pics hurry. Need to spend my x mas spending money that I didnt dump on GF!!! QUICK!
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01-06-2011, 12:36 AM	#32
Iwantm3 Banned 38 Rep 1,284 Posts Drives: 335i M sport Join Date: Mar 2009 Location: US AND A I likeeeee iTrader: (1)	woo hoo, can't wait for the pics
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01-06-2011, 02:38 AM	#35
Aridk Lieutenant 7 Rep 520 Posts Drives: 335i Join Date: Jan 2008 Location: Denmark iTrader: (0)	Still waiting for a picture of that new intake!
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01-06-2011, 02:54 AM	#36
Iwantm3 Banned 38 Rep 1,284 Posts Drives: 335i M sport Join Date: Mar 2009 Location: US AND A I likeeeee iTrader: (1)	I've seen it, looks fucking banging bro
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01-06-2011, 07:10 PM	#37
335xiRT1 Captain 47 Rep 693 Posts Drives: 2007 335i Join Date: Oct 2008 Location: long island iTrader: (14)	bump for new product pics
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01-06-2011, 07:55 PM	#38
BrianMN Banned 117 Rep 2,428 Posts Drives: 4 Door Family Sedan Join Date: Sep 2009 Location: Minneapolis iTrader: (7)	I personally like the idea of corrected dyno numbers. That is, if I understand it correctly. How I understand, corrections make up for temp, humidity, baro, etc. So, if corrections are used, a car with 350hp in 20F dry air at Sea level, that same car will have 350hp on 90F humid air at 1000ft. Poor conditions (High heat, humidity, elevation): the corrections will bring HP up. Better than Ideal conditions (very Low temps, dry, sea level) the corrections will bring the HP up. Is that accurate?
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