Desktop Dyno numbers, look correct?
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Race Director
Joined: Feb 1999
Posts: 12,772
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From: Indianapolis IN
Desktop Dyno numbers, look correct?
This is what a guy came up with for me,, look correct?
RPM···········2000····2500····3000····35 00····4000····4500····5000····5500····60 00····6500
Brake_Tq······224·····339·····415·····47 3·····516·····537·····530·····502·····46 2·····401
Brake_HP······85.1····161·····237·····31 5·····393·····460·····505·····526·····52 7·····496
Exh_Pres······0.0·····.1······.1······.2 ······.3······.5······.6······.7······.8 ······.9
Int_Vacuum····0.0·····.1······.1······.2 ······.4······.5······.6······.8······.9 ······.9
Vol_Eff_%·····62.1····74.6····83.1····92 .9····101.1···106.4···108.0···107.0···10 4.3···100.8
Actual_CFM····157·····236·····316·····41 2·····512·····608·····685·····747·····79 3·····830
Fuel_Flow·····57.5····86.4····115·····15 0·····187·····222·····250·····273·····29 0·····303
A/F_Mix_Qal···71.3····87.7····100.0···100. 0···100.0···100.0···100.0···100.0···100. 0···100.0
BSFC··········.675····.535····.486····.4 78····.476····.483····.496····.519····.5 49····.611
BSAC··········8.472···6.716···6.102···5. 994···5.971···6.058···6.228···6.504···6. 890···7.670
Friction_HP···20······30······42······55 ······71······93······117·····148·····18 4·····241
Mach_#········.151····.189····.226····.2 64····.302····.339····.377····.415····.4 53····.490
Piston_Spd····1250····1563····1875····21 88····2500····2813····3125····3438····37 50····4063
Piston_Gs·····283·····442·····637·····86 7·····1133····1433····1770····2141····25 48····2991
Overlap_%VE···-3.3····-1.0····-.8·····.9······2.1·····2.6·····2.6·····2 .4·····1.8·····1.3
Int_AvgVel····104·····130·····156·····18 2·····208·····234·····260·····286·····31 2·····338
In_InertiaPrs·.1······.6······1.3·····2. 2·····3.2·····3.8·····4.0·····3.8·····3. 4·····2.9
In_ResTunPrs··0.0·····0.0·····0.0·····0. 0·····0.0·····0.0·····0.0·····0.0·····0. 0·····.2
Ex_AvgVel·····132·····165·····198·····23 1·····264·····297·····330·····363·····39 6·····429
ExTun_Prs·····1.2·····.1······0.0·····-.4·····-.8·····-1.4····-1.7····-1.9····-1.7····-1.4
Lifter_Pump_UpNone····None····None····No ne····None····None····None····None····No ne····None
Spark_Adv·····32······33······32······31 ······31······32······33······33······35 ······36
RPM···········2000····2500····3000····35 00····4000····4500····5000····5500····60 00····6500
Brake_Tq······224·····339·····415·····47 3·····516·····537·····530·····502·····46 2·····401
Brake_HP······85.1····161·····237·····31 5·····393·····460·····505·····526·····52 7·····496
Exh_Pres······0.0·····.1······.1······.2 ······.3······.5······.6······.7······.8 ······.9
Int_Vacuum····0.0·····.1······.1······.2 ······.4······.5······.6······.8······.9 ······.9
Vol_Eff_%·····62.1····74.6····83.1····92 .9····101.1···106.4···108.0···107.0···10 4.3···100.8
Actual_CFM····157·····236·····316·····41 2·····512·····608·····685·····747·····79 3·····830
Fuel_Flow·····57.5····86.4····115·····15 0·····187·····222·····250·····273·····29 0·····303
A/F_Mix_Qal···71.3····87.7····100.0···100. 0···100.0···100.0···100.0···100.0···100. 0···100.0
BSFC··········.675····.535····.486····.4 78····.476····.483····.496····.519····.5 49····.611
BSAC··········8.472···6.716···6.102···5. 994···5.971···6.058···6.228···6.504···6. 890···7.670
Friction_HP···20······30······42······55 ······71······93······117·····148·····18 4·····241
Mach_#········.151····.189····.226····.2 64····.302····.339····.377····.415····.4 53····.490
Piston_Spd····1250····1563····1875····21 88····2500····2813····3125····3438····37 50····4063
Piston_Gs·····283·····442·····637·····86 7·····1133····1433····1770····2141····25 48····2991
Overlap_%VE···-3.3····-1.0····-.8·····.9······2.1·····2.6·····2.6·····2 .4·····1.8·····1.3
Int_AvgVel····104·····130·····156·····18 2·····208·····234·····260·····286·····31 2·····338
In_InertiaPrs·.1······.6······1.3·····2. 2·····3.2·····3.8·····4.0·····3.8·····3. 4·····2.9
In_ResTunPrs··0.0·····0.0·····0.0·····0. 0·····0.0·····0.0·····0.0·····0.0·····0. 0·····.2
Ex_AvgVel·····132·····165·····198·····23 1·····264·····297·····330·····363·····39 6·····429
ExTun_Prs·····1.2·····.1······0.0·····-.4·····-.8·····-1.4····-1.7····-1.9····-1.7····-1.4
Lifter_Pump_UpNone····None····None····No ne····None····None····None····None····No ne····None
Spark_Adv·····32······33······32······31 ······31······32······33······33······35 ······36
Race Director
Joined: May 2000
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Re: Desktop Dyno numbers, look correct? (ld85)
The output looks like it comes from the Engine Analyzer simulation program, not DeskTop Dyno.
If the program provides output, it is "correct", however, the accuracy of these programs' output is primarily a function of how precisely you can model the actual engine configuration based on the input data you provide. Accurate head flow and valve timing data is very important to achieving results that accurately predicte actual enginer performance.
Duke
If the program provides output, it is "correct", however, the accuracy of these programs' output is primarily a function of how precisely you can model the actual engine configuration based on the input data you provide. Accurate head flow and valve timing data is very important to achieving results that accurately predicte actual enginer performance.
Duke
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Re: Desktop Dyno numbers, look correct? (SWCDuke)
Cool, I did not realize that there where more software options for the estmation of an engines output. Make sense though now that I think about it.
