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Location:
melbourne
Registered:
November 2003
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best gear change rpm? 4age 100kw
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Fri, 02 July 2004 14:06
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g'day guys.
im just wondering what RPM u guys think is best to change at when dragging? ive got the 100kw engine in an ae82 and i change at about 7000rpm.
opinions?
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Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 14:23
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for fucks sake....
just change gears!
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Location:
melbourne
Registered:
November 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 14:27
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how about fuk you simon!
if u dont wana reply, dont reply, go give some1 else shit.
this is a forum, asking questions and answering them is how forums work.
im just askin what other people change gears at for best results. its as simple question
if u dont like it, TS.
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Location:
Melbourne
Registered:
March 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 14:32
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ur going to hate my answer more than simons
Go get your car dynoed
Go learn how to anti derrive an equation (maths methods here)
Plot an equation to your dyno graph that fits nicely
Figure out how many rpm u drop for each gear change.
Use that rpm change to find out where on the graph you have the most area under the graph. ie: if your car drops 700rpm from 4th to 5th, antiderrive the equation using a spread of 700rpm to find the point that gives you the greatest area under the graph. The upper limit of that point is where you should change.
Do the above for the other gears too.
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Location:
melbourne
Registered:
November 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 14:34
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thanks for that evil. its good to know there are still some healpful people in forums these days.
once again, id just like to add, fuk you simon.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 23:22
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change as close to rev limit without actually hitting rev limit. Rev limit i've found is about 7600rpm
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Location:
Adelaide
Registered:
May 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 23:51
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AE92 hard redline was 8025rpm.
Change before you hit that.
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Location:
Melb, Victoria
Registered:
April 2004
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Re: best gear change rpm? 4age 100kw
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Fri, 02 July 2004 23:58
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| THE WITZL wrote on Sat, 03 July 2004 09:22 |
change as close to rev limit without actually hitting rev limit. Rev limit i've found is about 7600rpm
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i'm with witzl, change just befor redline so u hit peak power when u drop it into the next gear.(dont drive like this all the time thou coz ur car wontlast long  )
| carsanactra wrote on Sat, 03 July 2004 00:34 |
once again, id just like to add, fuk you simon.
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 . such hostility....
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Location:
Sydney
Registered:
September 2003
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Re: best gear change rpm? 4age 100kw
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Sat, 03 July 2004 07:06
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| THE WITZL wrote on Sat, 03 July 2004 09:22 |
change as close to rev limit without actually hitting rev limit. Rev limit i've found is about 7600rpm
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yep thats what i do
seems to work well
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Location:
Queensland
Registered:
March 2004
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Re: best gear change rpm? 4age 100kw
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Sat, 03 July 2004 09:59
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mines a jdm ae86 with 100kw 4age and rev limiter is set at 8200rpm.... Is this normal?
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Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
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Re: best gear change rpm? 4age 100kw
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Sat, 03 July 2004 10:08
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lmao
grow up you idiot.
I was simply stating what was on everyones elses mind...
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Location:
Wahroonga
Registered:
June 2003
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Re: best gear change rpm? 4age 100kw
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Sat, 03 July 2004 10:27
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ok i say put the dam thing on a dyno and find the peak power that way, then change about 200rpms after the peak power on the dyno read out.
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Location:
Adelaide
Registered:
January 2004
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Re: best gear change rpm? 4age 100kw
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Sat, 03 July 2004 17:57
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I also believe 7600 is about right...(just got back from a drive)
My 100kw (also in AE82) revs fairly easy to there...it loves it 
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Location:
Adelaide
Registered:
April 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 21 January 2005 12:05
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| Intensevil wrote on Sat, 03 July 2004 00:02 |
ur going to hate my answer more than simons
Go get your car dynoed
Go learn how to anti derrive an equation (maths methods here)
Plot an equation to your dyno graph that fits nicely
Figure out how many rpm u drop for each gear change.
Use that rpm change to find out where on the graph you have the most area under the graph. ie: if your car drops 700rpm from 4th to 5th, antiderrive the equation using a spread of 700rpm to find the point that gives you the greatest area under the graph. The upper limit of that point is where you should change.
Do the above for the other gears too.
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Such an interesting reply
Do you know of any websites that goes into it in detail?
Finally there's a practical use to learning how to anti derive an equation!
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Location:
The Eastwood MASSIVE !
Registered:
May 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 21 January 2005 12:19
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HEY GUYS TELL ME HOW TO DRIVE LAWLS       
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Location:
Melbourne
Registered:
March 2003
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Re: best gear change rpm? 4age 100kw
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Fri, 21 January 2005 14:23
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no idea about finding a website related to that. The hardest bit would be just fiting a graph that suits the dyno graph, although even thats not hard if you know what your doing.
Unless you want to do a LOT of maths work, just change gears when you feel power drop off
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Registered:
October 2004
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Re: best gear change rpm? 4age 100kw
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Fri, 21 January 2005 15:56
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| Intensevil wrote on Sat, 03 July 2004 00:32 |
ur going to hate my answer more than simons
Go get your car dynoed
Go learn how to anti derrive an equation (maths methods here)
Plot an equation to your dyno graph that fits nicely
Figure out how many rpm u drop for each gear change.
Use that rpm change to find out where on the graph you have the most area under the graph. ie: if your car drops 700rpm from 4th to 5th, antiderrive the equation using a spread of 700rpm to find the point that gives you the greatest area under the graph. The upper limit of that point is where you should change.
Do the above for the other gears too.
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shit house where did you learn that off? that's bloody amazing. i thought graphs were to make it look good but that's a pretty nice reply
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Location:
Penrith, Sydney
Registered:
August 2004
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Re: best gear change rpm? 4age 100kw
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Fri, 21 January 2005 20:42
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I always do the 200rpm after drop off, and umless I am mistaken a standard 100kw 4age drops off at approx 7000prm, so usally change at just over 7000rpm
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: best gear change rpm? 4age 100kw
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Sat, 22 January 2005 02:36
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| carsanactra wrote on Sat, 03 July 2004 00:06 |
g'day guys.
im just wondering what RPM u guys think is best to change at when dragging? ive got the 100kw engine in an ae82 and i change at about 7000rpm.
opinions?
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Change it when it hits the redline you can usually hear when its just before fuel/iginition cut.
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Location:
toowoomba qld
Registered:
March 2004
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Re: best gear change rpm? 4age 100kw
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Sat, 22 January 2005 06:14
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I'd change it just as power drops off
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Location:
Sydney
Registered:
January 2003
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Re: best gear change rpm? 4age 100kw
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Sat, 22 January 2005 09:50
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carsanactra dont drive a car by it's tacho all the time. Use the tacho while you get a feeling for what the car can do, rev it out, see where it makes it's power up to, and get to know what the engine sounds like at that RPM. Then shift when you know it sounds right.
If you really need a visual market get a shift light and set it to the desired RPM.
Just remember everyone's engine is a little different, yours may rev out more or less, just experiment a little.
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