Bumpy Dyno
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Bumpy Dyno
Ok, so I got this dyno from a friend who was turbo with an FMU and then switched over to Crome on his setup (Greddy Kit on D16y5) (Green=FMU, Blue/Red=Crome)
He sent me his dynos along with his basemap (y5 basemaps are impossible to find) and I was just wondering if someone can explain why it is so bumpy up top.
He is using OEM wires on NGK bkr7e plugs gapped at .028. and the Dyno is set to smoothing 5.
Assuming this was a 4th gear pull 85mph is about 4000rpm his ignition at 11lbs was 13*
He sent me his dynos along with his basemap (y5 basemaps are impossible to find) and I was just wondering if someone can explain why it is so bumpy up top.
He is using OEM wires on NGK bkr7e plugs gapped at .028. and the Dyno is set to smoothing 5.
Assuming this was a 4th gear pull 85mph is about 4000rpm his ignition at 11lbs was 13*
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Re: Bumpy Dyno (kicked25th)
If on the top end at 11lbs of boost you have 13 degress of timing, I would say put some more back in it. That is a little aggressive for that amount of boost. Try that, should help smooth that out for you.
Jason
Jason
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Re: Bumpy Dyno (kicked25th)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kicked25th »</TD></TR><TR><TD CLASS="quote">by redline it raises to 16*</TD></TR></TABLE>
Still aggressive.
Jason
Still aggressive.
Jason
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Re: Bumpy Dyno (SFWD 1934)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SFWD 1934 »</TD></TR><TR><TD CLASS="quote">Still aggressive.
Jason</TD></TR></TABLE>
You think I should go above that if I plan on running the same setup?
Jason</TD></TR></TABLE>
You think I should go above that if I plan on running the same setup?
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Re: Bumpy Dyno (moops vs moors)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by moops vs moors »</TD></TR><TR><TD CLASS="quote">also gap those plugs down to .022-.024, the spark is probably having a hard time jumping that large of a gap at high RPM.</TD></TR></TABLE>
thats extremely low considering I know people running 16+lbs running .025. The dyno is in mph not rpms, the hx has a very long geared tranny. Redline in 4th (7200rpm) is about 105-110 with stock tires.
thats extremely low considering I know people running 16+lbs running .025. The dyno is in mph not rpms, the hx has a very long geared tranny. Redline in 4th (7200rpm) is about 105-110 with stock tires.
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Re: Bumpy Dyno (SFWD 1934)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SFWD 1934 »</TD></TR><TR><TD CLASS="quote">I would say put some more back in it. That is a little aggressive for that amount of boost. Try that, should help smooth that out for you.
Jason</TD></TR></TABLE>
Maybe Im misunderstanding something here. Are you saying to put more timing in because it's too agressive how they have it? Isn't that kind of contradicting? I think your statement should say, "Put some back in it, that is conservative for that amount of boost."
Jason</TD></TR></TABLE>
Maybe Im misunderstanding something here. Are you saying to put more timing in because it's too agressive how they have it? Isn't that kind of contradicting? I think your statement should say, "Put some back in it, that is conservative for that amount of boost."
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Re: Bumpy Dyno (crucian)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crucian »</TD></TR><TR><TD CLASS="quote">
Maybe Im misunderstanding something here. Are you saying to put more timing in because it's too agressive how they have it? Isn't that kind of contradicting? I think your statement should say, "Put some back in it, that is conservative for that amount of boost."</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SFWD 1934 »</TD></TR><TR><TD CLASS="quote">If on the top end at 11lbs of boost you have 13 degress of timing, I would say put some more back in it. That is a little aggressive for that amount of boost. Try that, should help smooth that out for you.
Jason</TD></TR></TABLE>
I did say that!
Aggressive- More timing taken out at a given amount of boost (11 lbs in this case)
Conservative- Little timing taken out a given amount of boost (11 lbs in this case)
Jason
Maybe Im misunderstanding something here. Are you saying to put more timing in because it's too agressive how they have it? Isn't that kind of contradicting? I think your statement should say, "Put some back in it, that is conservative for that amount of boost."</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SFWD 1934 »</TD></TR><TR><TD CLASS="quote">If on the top end at 11lbs of boost you have 13 degress of timing, I would say put some more back in it. That is a little aggressive for that amount of boost. Try that, should help smooth that out for you.
Jason</TD></TR></TABLE>
I did say that!
Aggressive- More timing taken out at a given amount of boost (11 lbs in this case)
Conservative- Little timing taken out a given amount of boost (11 lbs in this case)
Jason
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Re: Bumpy Dyno (Pro-Am 1934)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pro-Am 1934 »</TD></TR><TR><TD CLASS="quote">I did say that!
Aggressive- More timing taken out at a given amount of boost (11 lbs in this case)
Conservative- Little timing taken out a given amount of boost (11 lbs in this case)
Jason</TD></TR></TABLE>
I always thought it was the other way around. heh. Stupid color coding in Crome. So the higher the #, the more conservative. That just seems odd.
Aggressive- More timing taken out at a given amount of boost (11 lbs in this case)
Conservative- Little timing taken out a given amount of boost (11 lbs in this case)
Jason</TD></TR></TABLE>
I always thought it was the other way around. heh. Stupid color coding in Crome. So the higher the #, the more conservative. That just seems odd.
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Re: Bumpy Dyno (Pro-Am 1934)
Sorry Jason, you're a little backwards on this one.
Agressive in my book = running on the ragged edge of detonation, little to no safety margin.
Conservative, less than optimal timing than necessary for MBT, making less power than you could be.
I prefer to give the motor the minimum amount of timing it needs to make max power, nothing more, nothing less. Some people call this agressive, but I prefer to call it correct.
Agressive in my book = running on the ragged edge of detonation, little to no safety margin.
Conservative, less than optimal timing than necessary for MBT, making less power than you could be.
I prefer to give the motor the minimum amount of timing it needs to make max power, nothing more, nothing less. Some people call this agressive, but I prefer to call it correct.
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Re: Bumpy Dyno (locash)
I think Ima go with him. Adding some more timing might give me a few more hp but Id rather stay conservative at least for now.
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Re: Bumpy Dyno (kicked25th)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by locash »</TD></TR><TR><TD CLASS="quote">Sorry Jason, you're a little backwards on this one.
Agressive in my book = running on the ragged edge of detonation, little to no safety margin.
Conservative, less than optimal timing than necessary for MBT, making less power than you could be.
I prefer to give the motor the minimum amount of timing it needs to make max power, nothing more, nothing less. Some people call this agressive, but I prefer to call it correct.</TD></TR></TABLE>
Yea Joe,
I just call it on the opposite end of what you do. But you know what I was trying to say. I don't usually like to get them like that, because when they start detonating like that those sleeves like to "shift" and cause other funky things to happen, like overheating and such. I like to give the more "street" motors just enough to run correct while making a decent amount of power. Especially on pump gas, where you can get a shitty tank of some that may have less ocatane then the last tank, then you start getting pre-ignition.
Jason
Agressive in my book = running on the ragged edge of detonation, little to no safety margin.
Conservative, less than optimal timing than necessary for MBT, making less power than you could be.
I prefer to give the motor the minimum amount of timing it needs to make max power, nothing more, nothing less. Some people call this agressive, but I prefer to call it correct.</TD></TR></TABLE>
Yea Joe,
I just call it on the opposite end of what you do. But you know what I was trying to say. I don't usually like to get them like that, because when they start detonating like that those sleeves like to "shift" and cause other funky things to happen, like overheating and such. I like to give the more "street" motors just enough to run correct while making a decent amount of power. Especially on pump gas, where you can get a shitty tank of some that may have less ocatane then the last tank, then you start getting pre-ignition.
Jason
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