yeah, I believe I heard him mention this while he was setting up the speadsheet. It did include our car stock info in the software.

Now the question of SAE vs STD is something to consider:

SAE (Society of Automotive Engineers), USA. Power is corrected to reference conditions of 29.23 InHg (99 kPa) of dry air and 77 F (25°C). This SAE standard requires a correction for friction torque. Friction torque can be determined by measurements on special motoring dynamometers (which is only practical in research environments) or can be estimated. When estimates must be used, the SAE standard uses a default Mechanical Efficiency (ME) value of 85%. This is approximately correct at peak torque but not at other engine operating speeds. Some dynamometer systems use the SAE correction factor for atmospheric conditions but do not take mechanical efficiency into consideration at all (i.e. they assume a ME of 100%).


STD or STP. Another power correction standard determined by the SAE. This standard has been stable for a long time and is widely used in the performance industry. Power is corrected to reference conditions of 29.92 InHg (103.3 kPa) of dry air and 60 F (15.5°C). Because the reference conditions include higher pressure and cooler air than the SAE standard, these corrected power numbers will always be about 4 % higher than the SAE power numbers. Friction torque is handled in the same way as in the SAE standard.


both are approved

so lets see: 212hp STD < 4% = 203hp SAE

 

.........Here is some further related info in case you guys
are interested:

ECE (European Community), Europe. The ECE standard is based on the European Directives. Power is corrected to reference conditions of 99 kPa (29.23 InHg) of dry air and 25°C (77 F). Friction torque is not taken into consideration at all.
DIN (Deutsche Industrie Norm), Germany .The DIN standard is determined by the German automotive industry. Power is corrected to reference conditions of 101.3 kPa (29.33 InHg) of dry air and 20°C (68 F). With the advent of European legislation and standards, national standards such as the DIN (formerly widely used) are now less significant.


Actual You may see this on some charts, especially from Ivan. What this means is this is the actual horsepower achived on the day tested and no correction factor has been applied. One can assume better or worse results with varying weather conditions
so we see most of all at the track!!

 

EricL, I'd agree with you about the flash but isn't flash only if they go WOT from idle?

 

tell meeee about it

i blew 2 stock michelins already this winter to ny's finest craters

$450 out of pocket

sucks

 

yer just blind as a bat

 

But isn't 5th (.976) gear closer to 1:1 then 4th (1.250) ??

1st
2.563 / 3.933
2nd
1.552 / 2.478
3rd
1.021 / 1.700
4th
0.653 / 1.250
5th
0.470 / 0.976
6th
/ 0.771

Just curious as I'm planning on taking my CLS 6spd to the dyno this spring.

 

greenmonster,
YOu need to get close to 1:1 you can't go below. That's my undestanding.

 

I heard back from the DYNO place on the data files and the “STD" vs “SAE” controversy.

Hey Shawn...

The last dynojet was here to calibrate the dyno they said we had to use the STD version to get real numbers as that is what the software is set up for.
We have run it both ways and have seen the numbers higher or lower with SAE or STD..but all within 2-3 hp of each other...I will try to email files to ya...

thanks...dave@KDR

 

Hey everyone just bring it to the Englishtown in march then we will see who is top dog

 

No debate on this ??? Does what I posted sound correct ???

Shawn S

 

Considering SAE is how everyone else reports their numbers, you three should do the same.

 

eh, HP is HP. This isn't a pissing contest! My 1/4 times are not corrected for air temp. I think people have a relatively good idea of what kind of power everyone else is making. There is already some debate as to the correction factor.

Somebody is going to tell me.....that the 220hp wasn't really 220hp?

 

Thanks Zapata. That's what I thought, but I find that it's always good to get a second opinion

 

here is the link to my dyno sheet.

http://www.acura-cl.com/forums/showt...threadid=95812

 

You should post the SAE corrected dyno, as this compensates for spikes, air temp, etc.
SAE corrected is the more accurate measurement of what your hp actually is.
My CL-S auto dynoed 210 stock, SAE corrected, which is as high as Ive seen. I'd like to see your dynos SAE corrected to compare to mine. Currently I've run 14.6 stock, but with headers and the icebox on the way, I should dyno 250+ and break 14 in the quarter.
I want to be the first guy to break 14 in the quater with an auto that has only the header and icebox for mods.

 

See my post EIGHT spots up explaining this.

Shawn S

 

SAE all the way, I have seen the differences between SAE and STD reach as high as 10 - 15 whp

What happens is that you guys want to show the highest possible #s and you go with STD, which is fine as long as you clearify that it is STD so we all know why the #s are so high compared to others SAE #s. We should all stick to SAE because they are much more accurate!!!!

 

I don’t know. A couple of HP doesn’t mean that much to me. I know what the car can do.

Mine was 231 HP with SAE in 90-degree heat this past summer.
On Monday the temp was like 20-degrees outside and about 60 inside the dyno room.
That run showed 240 HP STD.

No differences in the car MOD wise from July to February.
I think the 9HP difference is because of the cold air and additional 5K miles on the car, not the STD heading.

Shawn S

 

SAE would have corrected the #s for the difference in temp and humidity and you probably would have been closer to that 231 from this past summer. STD is not just a heading.

Im done arguing about this, you guys post what ever you want , just specify if its corrected (SAE) or uncorrected (STD) so we know exactly what we are looking at, thats all. STD is a little missleading to someone who doesnt understand the difference. And yes I think there is a big difference between 240 and 230 whp. I bet most of us do.

 

tool462,
I'm glad your done arguing, I don't think that was the intent here.
.

Not leaving anyone out, but Zapata Shawn and Myself are about the 3 most honest guys you'll meet around Pa.

 

Xenon7,
I guess this is big cok measuring contest........

 

[QUOTE]Originally posted by Zapata
Xenon7,
I guess this is big cok measuring contest........


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