350Z/G35 First Annual AAM Hooters/Dyno Day
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From: MD
Originally posted by kcobean
So are the pair of lines that goes down after 5K RPM the torque curve from two runs and the line that builds up to about 6K RPM the HP? If so, that makes much more sense, and I will go take my medicine...
So are the pair of lines that goes down after 5K RPM the torque curve from two runs and the line that builds up to about 6K RPM the HP? If so, that makes much more sense, and I will go take my medicine...
That's correct. Now I've got a question. Is that a typo for the max A/F ratio, because his curve peaks at about 14.25 @ 5700 rpms and goes no where near 17.5 (which is a good thing)!
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From: Annandale, VA
Originally posted by kcobean
Is anyone else having a hard time understanding the **HUGE** disparity in the curve between the first and second runs??? I see it in my graph, Stanton's, Toby's too.
You pulled peak power on your first run at something like 3700RPM and on your second somewhere over 6000??? That doesn't make any sense! Was the first run for some kind of normalization, or is it really just wasted?
EDIT: Ok, I think I'm reading these graphs wrong here....I was assuming that the HP and TQ lines were in pairs (i.e. taking roughly the same path across the graph), but if you go by color coding, then it's the opposite.
So are the pair of lines that goes down after 5K RPM the torque curve from two runs and the line that builds up to about 6K RPM the HP? If so, that makes much more sense, and I will go take my medicine...
Ben, can you educate us on how this works?
Is anyone else having a hard time understanding the **HUGE** disparity in the curve between the first and second runs??? I see it in my graph, Stanton's, Toby's too.
You pulled peak power on your first run at something like 3700RPM and on your second somewhere over 6000??? That doesn't make any sense! Was the first run for some kind of normalization, or is it really just wasted?
EDIT: Ok, I think I'm reading these graphs wrong here....I was assuming that the HP and TQ lines were in pairs (i.e. taking roughly the same path across the graph), but if you go by color coding, then it's the opposite.
So are the pair of lines that goes down after 5K RPM the torque curve from two runs and the line that builds up to about 6K RPM the HP? If so, that makes much more sense, and I will go take my medicine...
Ben, can you educate us on how this works?
Second run's typically makes more power on a dyno day because cars have been sitting around in the parking lot and the transmission fluid, rear differntial fluid, etc. have cooled down and cause more drivetrain loss until they are heated up to normal operatating temperature. We allow the car to idel for a minute to heat the engine oil before we make a run, but it takes a little longer for the drivetrain fluids to reach their normal operating temp.
Ben Yavari
Altered Atmosphere
yea but who can run there car w/out oil like me?
I have to say that was funny to see the look on AAM guys faces before I told them the pressure guage wasnt hooked up.
busted my bubble later though
I have to say that was funny to see the look on AAM guys faces before I told them the pressure guage wasnt hooked up. busted my bubble later though
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From: MD
Originally posted by jester7500
That's correct. Now I've got a question. Is that a typo for the max A/F ratio, because his curve peaks at about 14.25 @ 5700 rpms and goes no where near 17.5 (which is a good thing)!
That's correct. Now I've got a question. Is that a typo for the max A/F ratio, because his curve peaks at about 14.25 @ 5700 rpms and goes no where near 17.5 (which is a good thing)!
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From: Annandale, VA
it always going to say max 17.5 if u base it on numerical order. at any point in time it could be 17.5 most likely its from deacceleration because theres going to be alittle lag from the receiver to stop the run. Once a run is complete the accelrator pedal is released fully closing the throttle body, this doesn't allow fuel to flow as much, very little goes. I hope this explains your questions.
Ben
Ben
some vid files i just wanted to throw up real quick:
http://nova350z.homeip.net:8080/350z/hosting/steve/
if u hear something that sounds like a jet, that's pumpedva's z
http://nova350z.homeip.net:8080/350z/hosting/steve/
if u hear something that sounds like a jet, that's pumpedva's z
Guess I'll go ahead and throw out a pitch here....
The server that EnthuZiastDrive has the videos hosted on is my server. Check out (and bookmark) the following when you have a chance. While my connection isn't the fastest in the world, but the server is a hoss....
http://nova350z.homeip.net:8080/forum/
Just a little something I put together for the local community, though I don't know how much use it'll get, but sign up anyway!
The server that EnthuZiastDrive has the videos hosted on is my server. Check out (and bookmark) the following when you have a chance. While my connection isn't the fastest in the world, but the server is a hoss....
http://nova350z.homeip.net:8080/forum/
Just a little something I put together for the local community, though I don't know how much use it'll get, but sign up anyway!
Last edited by kcobean; Jan 10, 2005 at 06:02 PM.
Originally posted by EnthuZiastDrive
some vid files i just wanted to throw up real quick:
http://nova350z.homeip.net:8080/350z/hosting/steve/
if u hear something that sounds like a jet, that's pumpedva's z
some vid files i just wanted to throw up real quick:
http://nova350z.homeip.net:8080/350z/hosting/steve/
if u hear something that sounds like a jet, that's pumpedva's z
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From: RVA
Originally posted by kcobean
Those vids rock. I've never really seen my car moving from the outside before. That was really cool. Thanks Steve!
Those vids rock. I've never really seen my car moving from the outside before. That was really cool. Thanks Steve!
Originally posted by 350zWarz
hey whats up bro what did you end up running on your corrected numbers, i got mine done after like everyone left and got 243 hp 235 tq sae corrected, just wanted to compare
hey whats up bro what did you end up running on your corrected numbers, i got mine done after like everyone left and got 243 hp 235 tq sae corrected, just wanted to compare
You're dynoing higher than most stock Z's so that is good!
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From: RVA
i got 17xxx on mine with injen exhaust, high flow cats, popcharger and i had a reflash done for all that plus headers which haven't been installed yet, hopefully after i install them it should be a little better
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From: Annandale, VA
hey kelly, i heard that the car doesn't reach its peak performance till around 10k miles....this is what i heard...everything is broken in completely and etc...i dunno if its true...just a rumor i heard...cant say ive tested it out before 
but just another one of those rumors like i said....
Ben
but just another one of those rumors like i said....Ben
Originally posted by Mantis3024
whos the other guy that got the illegal u-turn ticket?
whos the other guy that got the illegal u-turn ticket?
Despite my car looking like crap, not taking to the reflash, putting out weak numbers on the dyno, and this ticket...I did have a great time Sunday and hope I can make it for the drive on the 29th. By then I hope to have my car looing better and pulling harder. time will tell.
yea I am talking my car in this thursday or sat at the latest. Hope to have it back for the drive on the 29th HINT HINT HINT!!! lol
should be a beast seeing as I am dumping over 5k more in motor work cant wait though first HKS fulled modded. I know AAM is looking forward to this just as much as I am.
should be a beast seeing as I am dumping over 5k more in motor work cant wait though first HKS fulled modded. I know AAM is looking forward to this just as much as I am.