http://www.compcams.com/Camquest/default.asp
comp cams is now offering a free cam sellection software,
THIS IS A USEFUL TOOL,
this is useful in seeing the lift/duration/LCA they suggest for your application,
in most cases they get fairly close so its a tool thats useful
, now you don,t necessarily need to buy a COMP CAM but a cam with a similar lift/duration/LCA from your favorite manufacturer probably should be fairly close to whats recommended
keep in mind the software can,t differentiate between an off the shelf intake or one extensively port matched and ported,
, it can,t tell the difference between a crap valve job and a 5 angle valve job with a back cut valve,if port and bowl clean-up was done,
or headers blended entrances with matched length 38" primaries and 18"long 3.5" collectors and ones with
20 inch tube primaries and a 4"long 3" collector, and it certainly can,t account for a good tune vs one not so well balanced ETC.
and while you may enter factors like the cams LSA and LCA,
it generally won,t show how those changes effect scavenging efficiency.
soft ware dynos are generally accurate to within 5%-10% ,
but thats at times 30-hp to -40-hp, or more that is either potentially ignored or assumed.
BTW
this software
http://www.auto-ware.com/software/eap/eap.htm
http://garage.grumpysperformance.com/index.php?threads/engine-dyno-predictive-software.895/
is a P.I.T.A. to use but its is usually far closer to correct, and when you make a bad choice in components it points out the flaws and suggests where you can improve the combo
http://www.compperformancegroupstores.c ... gory_Code=
cam sellection software
http://www.virtualengine2000.com/DynoOverview.htm
http://www.autorepairmanuals.biz/site/5 ... uct/186011
virtual dyno software
http://www.enginedesigner.com/enginedesigner.aspx
http://www.themotorbookstore.com/resmchstvi.html
how to assemble an engine basics on video
heres three of the less expensive CDs that are well worth getting, ESPECIALLY the last two!
they can easily save a new guy to the hobby a great deal of time and money and screw ups matching parts
the top one is a cam sellection program, I have got to say that its a good starting point and seldom makes bad suggestions, take the durration and lift and LCA info and buy the cam for your combo from YOUR FAVORITE MANUFACTURER AFTER TALKING TO THEM ABOUT YOUR COMBO...but the software prediction gets you into the ballpark, and if your thinking you'll be using a significantly wilder cam your probably looking to screw up!
for the more advanced guys
http://quarterjr.com/engine_pro.htm
http://www.proracingsim.com/dynomationmainpage.htm
http://www.auto-ware.com/software/eap/eap.htm
http://speedtalk.com/v-dyno-racing-software.html
http://performancetrends.com/EA30.htm
http://www.dynamometer-info.co.uk/downl ... ftware.htm
how many guys use analyzer software to...
how many guys use engine analyzer software , like DD-2000, engine analyzer, and similar programs to check out potential changes and mods, and have you found the real world results to be similar to prodicted results?
I have several versions in the shop to use for spotting potential problems and areas that need improvement, sure the experiance helps a great deal, but
these are very useful tools but the less expensive options are better at guessing trends in the engine mods than acctual results, but thats to be expected simply because they don,t take into accound , NEARLY the same amount of data and ASSUME things the more complex programs actually calculate
now thats NOT always a bad thing because the old (GARBAGE IN/GARBAGE OUT) factor applies to most software and if your not 100% sure what your entering is factual data, the simple programs might give closer results than a more precise simulation with some bad data entered
heres a few examples
http://www.proracingsim.com/desktopdyno.htm
http://www.virtualengine2000.com/
http://www.land-and-sea.com/dyno-max...e/dyno-max.htm
http://www.motionsoftware.com/
http://www.dynamometer.fsnet.co.uk/d...o-software.htm
http://www.engineprosoft.com/
http://www.auto-ware.com/software/eap/eap.htm
Ive played with several of these dyno software programs and they run from extremely simple and fairly accurate to extremely complex and difficult to use, but very accurate
now I tend to get the best results accuracy wise with software results matching real world results, with EA PRO
http://www.auto-ware.com/software/eap/eap.htm
and
http://www.motionsoftware.com/
seems about the fastest and reasonably close at predicting TRENDS
and you need to have BOTH diagnostic software and a basic understanding of what that softwares telling you....
http://www.obd2.com/scantool/scantool.htm
http://tradervar.zoovy.com/product/EZ-S ... xtag-EZ-S1
comp cams is now offering a free cam sellection software,
THIS IS A USEFUL TOOL,
this is useful in seeing the lift/duration/LCA they suggest for your application,
in most cases they get fairly close so its a tool thats useful
, now you don,t necessarily need to buy a COMP CAM but a cam with a similar lift/duration/LCA from your favorite manufacturer probably should be fairly close to whats recommended
keep in mind the software can,t differentiate between an off the shelf intake or one extensively port matched and ported,
, it can,t tell the difference between a crap valve job and a 5 angle valve job with a back cut valve,if port and bowl clean-up was done,
or headers blended entrances with matched length 38" primaries and 18"long 3.5" collectors and ones with
20 inch tube primaries and a 4"long 3" collector, and it certainly can,t account for a good tune vs one not so well balanced ETC.
and while you may enter factors like the cams LSA and LCA,
it generally won,t show how those changes effect scavenging efficiency.
soft ware dynos are generally accurate to within 5%-10% ,
but thats at times 30-hp to -40-hp, or more that is either potentially ignored or assumed.
BTW
this software
http://www.auto-ware.com/software/eap/eap.htm
http://garage.grumpysperformance.com/index.php?threads/engine-dyno-predictive-software.895/
is a P.I.T.A. to use but its is usually far closer to correct, and when you make a bad choice in components it points out the flaws and suggests where you can improve the combo
http://www.compperformancegroupstores.c ... gory_Code=
cam sellection software
http://www.virtualengine2000.com/DynoOverview.htm
http://www.autorepairmanuals.biz/site/5 ... uct/186011
virtual dyno software
http://www.enginedesigner.com/enginedesigner.aspx
http://www.themotorbookstore.com/resmchstvi.html
how to assemble an engine basics on video
heres three of the less expensive CDs that are well worth getting, ESPECIALLY the last two!
they can easily save a new guy to the hobby a great deal of time and money and screw ups matching parts
the top one is a cam sellection program, I have got to say that its a good starting point and seldom makes bad suggestions, take the durration and lift and LCA info and buy the cam for your combo from YOUR FAVORITE MANUFACTURER AFTER TALKING TO THEM ABOUT YOUR COMBO...but the software prediction gets you into the ballpark, and if your thinking you'll be using a significantly wilder cam your probably looking to screw up!
for the more advanced guys
http://quarterjr.com/engine_pro.htm
http://www.proracingsim.com/dynomationmainpage.htm
http://www.auto-ware.com/software/eap/eap.htm
http://speedtalk.com/v-dyno-racing-software.html
http://performancetrends.com/EA30.htm
http://www.dynamometer-info.co.uk/downl ... ftware.htm
how many guys use analyzer software to...
how many guys use engine analyzer software , like DD-2000, engine analyzer, and similar programs to check out potential changes and mods, and have you found the real world results to be similar to prodicted results?
I have several versions in the shop to use for spotting potential problems and areas that need improvement, sure the experiance helps a great deal, but
these are very useful tools but the less expensive options are better at guessing trends in the engine mods than acctual results, but thats to be expected simply because they don,t take into accound , NEARLY the same amount of data and ASSUME things the more complex programs actually calculate
now thats NOT always a bad thing because the old (GARBAGE IN/GARBAGE OUT) factor applies to most software and if your not 100% sure what your entering is factual data, the simple programs might give closer results than a more precise simulation with some bad data entered
heres a few examples
http://www.proracingsim.com/desktopdyno.htm
http://www.virtualengine2000.com/
http://www.land-and-sea.com/dyno-max...e/dyno-max.htm
http://www.motionsoftware.com/
http://www.dynamometer.fsnet.co.uk/d...o-software.htm
http://www.engineprosoft.com/
http://www.auto-ware.com/software/eap/eap.htm
Ive played with several of these dyno software programs and they run from extremely simple and fairly accurate to extremely complex and difficult to use, but very accurate
now I tend to get the best results accuracy wise with software results matching real world results, with EA PRO
http://www.auto-ware.com/software/eap/eap.htm
and
http://www.motionsoftware.com/
seems about the fastest and reasonably close at predicting TRENDS
and you need to have BOTH diagnostic software and a basic understanding of what that softwares telling you....
http://www.obd2.com/scantool/scantool.htm
http://tradervar.zoovy.com/product/EZ-S ... xtag-EZ-S1
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