powerlog fuel imbalance
03-17-2007, 09:16 PM
#1
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powerlog fuel imbalance
i need to know where some of you got the info ( a link to the thread would be great) about the fuel imbalance with the powerlog
i cant find it on Club gp, they talk about it on 3800pro
i cant find it on Club gp, they talk about it on 3800pro
03-17-2007, 09:21 PM
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03-17-2007, 09:46 PM
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From that topic:
Try searching on SKEW at ClubGP and 3800pro.com like I suggested in reply to your PM.
Originally Posted by GTPboy
We have done some testing with the Plog on an L67..
Honestly the gains are next to nothing before skewing the injectors (2%IIRC). However once they are skewed the power is great, almost like headers.
We swapped out a front PEM with the PLOG and still noticed nice gains, after skewing of course.
And to the best of my knowledge we will have the fastest PLOG'ed car???? 12.3s going into tonight, and hopefully 11s after tonight (only changes being the PLOG and tuning).
HTH-at least a little-Jeremiah
Honestly the gains are next to nothing before skewing the injectors (2%IIRC). However once they are skewed the power is great, almost like headers.
We swapped out a front PEM with the PLOG and still noticed nice gains, after skewing of course.
And to the best of my knowledge we will have the fastest PLOG'ed car???? 12.3s going into tonight, and hopefully 11s after tonight (only changes being the PLOG and tuning).
HTH-at least a little-Jeremiah
03-17-2007, 09:48 PM
#5
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If it'* any value, I was researching the XP Hotcam and called to ask about clearance etc. Couldn't talk to anyone three days in a row and then upon emailing got a response from ZZP'* lead tech regarding the VS vs XP that led into his telling me the XP hot requires a double roller timing chain. Their site clearly says you can run the stock chain and dampener.
Personally, I would have to apply some level of logic to what they say and what the people using the product say.
In this case, everyone running that log is stating the front becomes lean from the flow.
Personally, I would have to apply some level of logic to what they say and what the people using the product say.
In this case, everyone running that log is stating the front becomes lean from the flow.
03-17-2007, 09:50 PM
#6
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http://www.clubgp.com/newforum/tm.as...de=&*=#3638590
Your own topic on 3800pro:
http://www.3800pro.com/forum/showthr...highlight=skew
http://www.3800pro.com/forum/showthr...highlight=skew
Less than two minutes of searching. You going to believe ZZP'* denial of the need or the practical experience of the people who have done it?
FYI, Gamoever got an email from ZZP stating the skew wasn't necessary.
Your own topic on 3800pro:
http://www.3800pro.com/forum/showthr...highlight=skew
http://www.3800pro.com/forum/showthr...highlight=skew
Less than two minutes of searching. You going to believe ZZP'* denial of the need or the practical experience of the people who have done it?
FYI, Gamoever got an email from ZZP stating the skew wasn't necessary.
03-17-2007, 09:57 PM
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Even tho the skewing isn't nescessary, and it obviously isn't to just bolt it on. You will see more gains skewing the injectors. Via butt dyno you can litterally feel the difference.
Our 13sec L36 shows that-lol.
Our 13sec L36 shows that-lol.
03-17-2007, 10:01 PM
#8
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Everyone that has skewed has noticed the difference. This clearly shows a problem.
The front 3 cylinders are running 1-2% leaner than the rear. But you only have one O2 sensor. That means 3 are slightly rich and 3 are slightly lean, with an overall good AFR according to the PCM.
Leaving the front three injectors to be more prone to KR issues from a lean condition.
The front 3 cylinders are running 1-2% leaner than the rear. But you only have one O2 sensor. That means 3 are slightly rich and 3 are slightly lean, with an overall good AFR according to the PCM.
Leaving the front three injectors to be more prone to KR issues from a lean condition.
03-18-2007, 11:32 AM
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well i emailed chris at FEI to try to do my injectors 3% over the others from what i seen on club gp i few guys with the log did that and the car woke up and chris suggested 3% because that would work out better for him with the pool he has
right now as far as Kr i see Spikes from 0-3 degrees at Wot in lower RPM and in higher rpm i have none
right now as far as Kr i see Spikes from 0-3 degrees at Wot in lower RPM and in higher rpm i have none
03-18-2007, 11:35 AM
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There is no special table adjustments required for the PL or PEM’*. As always, tuning would never hurt though.
Eric DeVries
ZZPerformance.com -Sales
(p): 616-532-5152
(f): 616-532-5110
-----Original Message-----
From: Mark Morgan [mailto:Mmorgan24@wi.rr.com]
Sent: Thursday, December 28, 2006 4:47 PM
To: Eric Devries
Subject: Re: recent purchase
is the zzp pcm tuned for the powerlogs already?
Eric DeVries
ZZPerformance.com -Sales
(p): 616-532-5152
(f): 616-532-5110
-----Original Message-----
From: Mark Morgan [mailto:Mmorgan24@wi.rr.com]
Sent: Thursday, December 28, 2006 4:47 PM
To: Eric Devries
Subject: Re: recent purchase
is the zzp pcm tuned for the powerlogs already?