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well here is mine... I don't know what that guy was doing on the first run... must of been on something.. anyways.. any suggestions would be most appreciated.. again I think with lightweight 17's (centerline RPM's) and some headers I can be at 185hp..
Eric
can anyone analyze my A/F readings?
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I hate to point this out Eric but the dyno kinda screwed ya. Those numbers are in STD not SAE. They are likely too high.
As for air fuel if they pull the scale line down to 45 before they do a multiple graph everything would be easier to read. I can't tell you anything from that reading. Starting from the same rpm would have been nice too for consistency.
EDITED
You are at sea level though so I'm not sure what would happen. STD is Barometeric correction IIRC.
Last edited by Keyser; 08/04/03 07:32 PM.
2001 Lincoln LS8
1994 Lexus GS300
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Joined: Dec 2000
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CEG\'er
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Thanks for the compliments gentlemen!
Eric, your car sounded as if it was running lean at the top end of the rev range, as I heard what sounded like detonation(remember me mentioning it to you?). What confirmed it(for me) was my buddy Sean out of the blue saying that he heard a noise that sounded like detonation in the topend.
My car made 225.9whp/222.2wtq on 5psi with warm water and a lean mid range air/fuel mix. I added 3% from 3-6k, and took gave the boost controller a half turn. Results: 5.5-6psi 231.1whp/227.9wtq...on warm water.
I really wasn't trying to "wow" anyone with my runs, just trying to check the air/fuel curve with the car in a "hot" everday/traffic condition. If I had some ice in the tank, I can nearly guarantee 10-15 more whp, and maybe 5-10 more wtq.
2002 ZO6...462whp/410wtq
pretty darn fast!11.70 @ 122
silver/black
2006 Trailblazer SS(wifes car)
silver/black
2000 SVT-Turbo-sold
silver/blue #1699/2150
13.83 @ 102.82 on 5psi
13.51 @ 107.56 on 8psi
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Joined: Dec 2000
Posts: 487
CEG\'er
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CEG\'er
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Originally posted by Keyser:
I hate to point this out Eric but the dyno kinda screwed ya. Those numbers are in STD not SAE. They are likely too high.
As for air fuel if they pull the scale line down to 45 before they do a multiple graph everything would be easier to read. I can't tell you anything from that reading. Starting from the same rpm would have been nice too for consistency.
EDITED
You are at sea level though so I'm not sure what would happen. STD is Barometeric correction IIRC.
Chris, it was around 90 degrees and was nearly raining the enitire time, so even if it were different, the nice thing is that we had some decent cars to compare to:
SRT-4-best pull was 215whp/231wtq
LS1 with quite a few mods was 346whp/356wtq
5.0 Cobra with I/E was 250whp/251wtq
BMW 328 with a intercooled supercharger at 8psi-278whp
So, we weren't to far off.
2002 ZO6...462whp/410wtq
pretty darn fast!11.70 @ 122
silver/black
2006 Trailblazer SS(wifes car)
silver/black
2000 SVT-Turbo-sold
silver/blue #1699/2150
13.83 @ 102.82 on 5psi
13.51 @ 107.56 on 8psi
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Posts: 9,602
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Most place do not use the STD correction factor. It will normally show numbers around 3-4% higher than SAE will since it corrects to a lower temperature plus a higher barometric presure.
STD is defined as: 59 F, 29.92? Hg, 0% humidity. It is the same thing as 100% RAD.
SAE is defined as: 77 F, 29.23? Hg, 0% humidity. It is the same thing as 94.4% RAD.
RAD = Relative Air Density
So drop the entire curves by 3-4% and then step back and take a look at them again.
For instance:
That 175HP STD graph would be around 169HP SAE at peak.
That 155TQ STD graph would be around 150TQ SAE at peak.
IIRC my old dyno "STD" numbers were mid 190's & mid 170's. 
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Good info Greg. I thought my newest numbers were slightly high in comparison to my previous dyno on 5psi with ice in the intercooler tank. I feel bad for Eric and Joe as they weren't completely impressed/satisfied with the numbers they had put down STD. I do remember your dyno being in the 190's pre corrected....it's gotta suck to see the #'s go down! 
2002 ZO6...462whp/410wtq
pretty darn fast!11.70 @ 122
silver/black
2006 Trailblazer SS(wifes car)
silver/black
2000 SVT-Turbo-sold
silver/blue #1699/2150
13.83 @ 102.82 on 5psi
13.51 @ 107.56 on 8psi
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Joined: Aug 2000
Posts: 1,128
Hard-core CEG\'er
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"The majority of the charts you see here use certain correction factors to adjust the measured power of the car on a given day under given atmosphic conditions, and adjust them to what they should be if tested at sea level . There are several horsepower correction factors you may see on these dyno charts. The most recognised are:"
um If we weren't at sea level I don't know what sea level is... 
in fact I could probably throw a rock into the atlantic from where we were at..
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Joined: Jun 2003
Posts: 99
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OP
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Originally posted by wavrdr:
Good info Greg. I thought my newest numbers were slightly high in comparison to my previous dyno on 5psi with ice in the intercooler tank.
I feel bad for Eric and Joe as they weren't completely impressed/satisfied with the numbers they had put down STD.
I do remember your dyno being in the 190's pre corrected....it's gotta suck to see the #'s go down!
Allen I was actually pretty satisfied with my baseline #'s. I think Fletcha is correct about no corrections being made b/c we're at sea level. We were about 4.5 miles from the beach, that would be one hell of a throw Eric. 
99 CSVT #91 - Silver Frost
2 3/4 Custom Exhaust
Sho-Shop Y Pipe/Catless
B & M Shifter
VCN-2000
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Originally posted by 99SVT - #91:
We were about 4.5 miles from the beach, that would be one hell of a throw Eric.
yea..you didn't get a glimpse of my biceps did you.. all 10 phat inches of them..
also... as far as the dyno goes.. Florida hot humid sticky weather.. come on now..
Alan, I just purchased an SAFC VII, I know every car is different but maybe you can give me some general pointers on install and tuning..
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Originally posted by FlechaAutoSports:
"The majority of the charts you see here use certain correction factors to adjust the measured power of the car on a given day under given atmosphic conditions, and adjust them to what they should be if tested at sea level . There are several horsepower correction factors you may see on these dyno charts. The most recognised are:"
um If we weren't at sea level I don't know what sea level is...
in fact I could probably throw a rock into the atlantic from where we were at..
I'm pretty sure that STD and SAE are both "corrected" numbers - but like Demon posted above STD corrects to a lower temp than SAE so it will always give a slightly higher number.
97 Contour SE MTX
K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust
04 Grand Caravan SXT
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