First time at dyno, what do you think *PICS*
First time at dyno, what do you think *PICS*
Just got back from the dyno here localy. My best pull was: 283.8 rwhp 329.3 rwtq. Below is a link to this dyno run's print out. Tell me what you think, the guy there said i mite be running rich but then agian he is an import dude
Lemme know, post comments and stuff.
http://www.webideas.net/misc%20art/dynopull.jpg
Lemme know, post comments and stuff.http://www.webideas.net/misc%20art/dynopull.jpg
thanks, im VERY happy with them. I thought for sure i was gonna be in the 260's from what people say. I dont have much done, stock exhaust is killing me rwhp wise.
Last edited by NVetro; Oct 25, 2003 at 02:29 PM.
Looks good. You were selling yourself short with your list of mods only expecting 260.
Do you have a printout of the conditions so that you can figure out the SAE correction factor? Actual HP numbers are pretty worthless unless you are comparing it to other runs made the same day immediately before and after.
Do you have a printout of the conditions so that you can figure out the SAE correction factor? Actual HP numbers are pretty worthless unless you are comparing it to other runs made the same day immediately before and after.
Well the reason i said something is because the graph is labeled "actual hp". In WinPEP (the dynojet software) there are many options for what you graph. It appears that they Plotted the actual power output to the dyno and didn't apply the SAE-j or STD correction factors.
You'll need them if you want to accureately compare this baseline run to your future mods.
You'll need them if you want to accureately compare this baseline run to your future mods.
Something is wrong with the graph. It is not possible for tq and hp to intercept anywhere other than at 5252rpm, and it crosses before that, more like at 4500rpm, so I would get that checked out.
HP = TQ*(RPM/5252)
So if you are at 5252rpms, HP = TQ thats just how it works.
Chris
HP = TQ*(RPM/5252)
So if you are at 5252rpms, HP = TQ thats just how it works.
Chris
thanks Slow95car. Yea the chart is alittle diffrent then most from what I see. The numbers are right, they are true and corrected for conditions from what the guy said. What I am curious about is how it getting ALITTLE choppy at higher rpms 4500+, anyone have any ideas? Is it to rich cus oif my new fuel pump?
Last edited by NVetro; Oct 25, 2003 at 04:05 PM.
Did you ask the guy for sure if they were corrected #'s? Because usually the graph says SAE or STd on it, if it had the correction. But either way your #'s look good. What mod did you notice the biggest difference with. Because my hp is close to yours but your tq is a lot higher then mine. I also have a catback.
Yes the 101.8 was run with my mods in the sig, naturaly aspirated of course. As for my highe tq numbers, maybe that is due to my billet flywheel and stage 3 clutch. As for SAE numbers it turns out I am wrong as usual, lol. They are the actual numbers, here are the conditions during the dyno, anyone have a calc?
Temp: 57 F
Dew: 57 F
Humidity: 69%
Pressure: 30.35 inches
Elevation: 43 feet
Location: Lodi, New Jersey
Can anyone calculate it for me please, I think it mite go down, not sure. Thanks.
Temp: 57 F
Dew: 57 F
Humidity: 69%
Pressure: 30.35 inches
Elevation: 43 feet
Location: Lodi, New Jersey
Can anyone calculate it for me please, I think it mite go down, not sure. Thanks.
I got 268.8 SAE
Correction factor of 0.947343986
0.947343986=cf = 1.180*[(990/Pdry)(Tk/298)^.5]-.18
Pdry= P-Pwater69% = 1027.769-11.03=1016.739 millibar
Tk=286.8 Kelvin
Still good for your mods. Here is a dyno with similar mods.
Does Ion have your car tuned rich for the nitrous?
-brent
Correction factor of 0.947343986
0.947343986=cf = 1.180*[(990/Pdry)(Tk/298)^.5]-.18
Pdry= P-Pwater69% = 1027.769-11.03=1016.739 millibar
Tk=286.8 Kelvin
Still good for your mods. Here is a dyno with similar mods.
Does Ion have your car tuned rich for the nitrous?
-brent
Last edited by 94formulabz; Oct 25, 2003 at 07:13 PM.


