MAF tuning
Senior Member
Joined: 12-20-06
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From: Calgary, AB Canada
Now with all the MAF stuff out of the way I do have one question I did ask previously but did not get a clear answer on is this:
When tuning VE in PE above 3 psi I can set a similar filter VE>3psi boost. Is this correct and from there what cell count do I instruct the histo to hit for maximum data?
cheers
When tuning VE in PE above 3 psi I can set a similar filter VE>3psi boost. Is this correct and from there what cell count do I instruct the histo to hit for maximum data?
cheers
Now with all the MAF stuff out of the way I do have one question I did ask previously but did not get a clear answer on is this:
When tuning VE in PE above 3 psi I can set a similar filter VE>3psi boost. Is this correct and from there what cell count do I instruct the histo to hit for maximum data?
cheers
When tuning VE in PE above 3 psi I can set a similar filter VE>3psi boost. Is this correct and from there what cell count do I instruct the histo to hit for maximum data?
cheers
**** it...(o)(o)... it is.
Senior Member
Joined: 12-20-06
Posts: 2,379
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From: Calgary, AB Canada
Senior Member
Joined: 05-02-07
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From: San Jose, CA
Also, I like my PE MAF to err on the side of -2 or -3, because a lot of my real pulls are not in ideal conditions and I may be sitting for a bit. We go lean when we heat soak, so if I am set a little rich to begin with, I hit a 11.7 or so heat soaked, and I'm cool with that.
And NEO, we all know you're an *******, so don't trip...
Oops almost forgot the smiley.
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Joined: 12-20-06
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From: Calgary, AB Canada
Personally, I do not bother with filters in PE. I get the car up to temp and find a place where I can slow down and do a good 3rd gear pull. I roll into the throttle and run untill RL. Then, just before the rev limiter, I push in the clutch, let off the gas and pop it in 5th. Get back on the freeway and let me SC cool down untill my IAT2s look good, then I do it again. When reviewing the logs, I ignore the lean spikes that sometimes happen for just a sec after PE kicks in. After I think I have it pretty good, I'll do some 2nd gear pulls to check and make sure it all looks good. Sometimes I get stupid with 4th gear pulls, but that gets you in trouble on the street.
Also, I like my PE MAF to err on the side of -2 or -3, because a lot of my real pulls are not in ideal conditions and I may be sitting for a bit. We go lean when we heat soak, so if I am set a little rich to begin with, I hit a 11.7 or so heat soaked, and I'm cool with that.
So are you talking about VE or MAF tuning or both? Like i said I was having problems getting any data in PE because of the 20 cell count. So if I understand correctly you do 3rd gear pulls to 7000 rpm then shift into 5th and come back down to say 4000 rpm drive until my AIT2s come back down to normal, shift into 3rd again do another 3rd gear pull and keep doing this until you get data. Stop edit the MAF or VE table depending on which you are tuning and go at it again.
cheers
Also, I like my PE MAF to err on the side of -2 or -3, because a lot of my real pulls are not in ideal conditions and I may be sitting for a bit. We go lean when we heat soak, so if I am set a little rich to begin with, I hit a 11.7 or so heat soaked, and I'm cool with that.
So are you talking about VE or MAF tuning or both? Like i said I was having problems getting any data in PE because of the 20 cell count. So if I understand correctly you do 3rd gear pulls to 7000 rpm then shift into 5th and come back down to say 4000 rpm drive until my AIT2s come back down to normal, shift into 3rd again do another 3rd gear pull and keep doing this until you get data. Stop edit the MAF or VE table depending on which you are tuning and go at it again.
cheers
Last edited by Kaisoboy; Mar 26, 2008 at 01:34 AM.
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Joined: 05-02-07
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From: San Jose, CA
[QUOTE=Kaisoboy;2120907]
I'm talking MAF. I sent my post count to 0 and just watch the data. Do a pull, then drive around for a bit to cool things down and do another pull. I do my PE by hand, I don't copy/paste error percent, I study the data and adjust appropriately.
Oh, and your doing 4000 rpms in 5th, you're going too fast.
Personally, I do not bother with filters in PE. I get the car up to temp and find a place where I can slow down and do a good 3rd gear pull. I roll into the throttle and run untill RL. Then, just before the rev limiter, I push in the clutch, let off the gas and pop it in 5th. Get back on the freeway and let me SC cool down untill my IAT2s look good, then I do it again. When reviewing the logs, I ignore the lean spikes that sometimes happen for just a sec after PE kicks in. After I think I have it pretty good, I'll do some 2nd gear pulls to check and make sure it all looks good. Sometimes I get stupid with 4th gear pulls, but that gets you in trouble on the street.
Also, I like my PE MAF to err on the side of -2 or -3, because a lot of my real pulls are not in ideal conditions and I may be sitting for a bit. We go lean when we heat soak, so if I am set a little rich to begin with, I hit a 11.7 or so heat soaked, and I'm cool with that.
So are you talking about VE or MAF tuning or both? Like i said I was having problems getting any data in PE because of the 20 cell count. So if I understand correctly you do 3rd gear pulls to 7000 rpm then shift into 5th and come back down to say 4000 rpm drive until my AIT2s come back down to normal, shift into 3rd again do another 3rd gear pull and keep doing this until you get data. Stop edit the MAF or VE table depending on which you are tuning and go at it again.
cheers
Also, I like my PE MAF to err on the side of -2 or -3, because a lot of my real pulls are not in ideal conditions and I may be sitting for a bit. We go lean when we heat soak, so if I am set a little rich to begin with, I hit a 11.7 or so heat soaked, and I'm cool with that.
So are you talking about VE or MAF tuning or both? Like i said I was having problems getting any data in PE because of the 20 cell count. So if I understand correctly you do 3rd gear pulls to 7000 rpm then shift into 5th and come back down to say 4000 rpm drive until my AIT2s come back down to normal, shift into 3rd again do another 3rd gear pull and keep doing this until you get data. Stop edit the MAF or VE table depending on which you are tuning and go at it again.
cheers
I'm talking MAF. I sent my post count to 0 and just watch the data. Do a pull, then drive around for a bit to cool things down and do another pull. I do my PE by hand, I don't copy/paste error percent, I study the data and adjust appropriately.
Oh, and your doing 4000 rpms in 5th, you're going too fast.
Senior Member
Joined: 12-20-06
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From: Calgary, AB Canada
[QUOTE=SJSchafer;2121032]
I'm talking MAF. I sent my post count to 0 and just watch the data. Do a pull, then drive around for a bit to cool things down and do another pull. I do my PE by hand, I don't copy/paste error percent, I study the data and adjust appropriately.
Oh, and your doing 4000 rpms in 5th, you're going too fast.
No No. but I get your point. Thanks
I'm talking MAF. I sent my post count to 0 and just watch the data. Do a pull, then drive around for a bit to cool things down and do another pull. I do my PE by hand, I don't copy/paste error percent, I study the data and adjust appropriately.
Oh, and your doing 4000 rpms in 5th, you're going too fast.
No No. but I get your point. Thanks
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Joined: 04-08-07
Posts: 462
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From: Chicago, IL
i have a quick question im trying to subtract my High Octane table in cells .56 and down to 1.36 by 3* is there any easy way to do this because every time I try i highlight the cells that i want to decrease then do a paste special and subtract but when i do that only the 1st cell changes so what im asking is. Is there a way to decrease all the cells i have selected by 3 or do i have to change each cell manually thanks
i have a quick question im trying to subtract my High Octane table in cells .56 and down to 1.36 by 3* is there any easy way to do this because every time I try i highlight the cells that i want to decrease then do a paste special and subtract but when i do that only the 1st cell changes so what im asking is. Is there a way to decrease all the cells i have selected by 3 or do i have to change each cell manually thanks
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Joined: 04-08-07
Posts: 462
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From: Chicago, IL
You should be able to highlight all the cells you want changed, and on the top bar, enter -3 and then click the add button. This will add negative three (subtract 3) from all cells that are highlighted. If you find that only the first cell gets changed, I imagine you may be doing something wrong.
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Joined: 06-04-07
Posts: 27
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From: Ontario, Canada
Ok So I am starting down this crazy road in baby steps I have installed 60's and I used the first numbers that are posted in the sticky. First since those numbers were for 60 and since most injectors do not run at 60 exactly is that going to ba a problem? Could you just bump up the multiplier from 1.19 to 1.29? Second should I tune the MAF first liek you say here or tune the VE like it says on the sticky? Third I followed what the sticky said about dissabling dfco but it still seemed like it was still on. Is this just because I am not tuned and its going lean on its own? Fourth when tuning the MAF should DFCO and anything else be turned off?
Last edited by SSSexy; Apr 21, 2008 at 08:40 PM.
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From: San Jose, CA
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