should i get zo6 maf?
Registered User
Joined: Jul 2001
Posts: 4,577
From: DeKalb, IL
Originally posted by 97FormulaWS-6
act very funky?? how?? and y would gm put a "funky" reading MAF on their flagship car?
I've NEVER had any problems with my GM Z06 MAF, but maybe that's the difference, I'm not using a LS1-speed version, I'm using a $85 GM version...
And I DO know the calibration... mine was interpolated directly from a '02 Z06 Vette PCM for the LT1 PCM.
next?
act very funky?? how?? and y would gm put a "funky" reading MAF on their flagship car?
I've NEVER had any problems with my GM Z06 MAF, but maybe that's the difference, I'm not using a LS1-speed version, I'm using a $85 GM version...
And I DO know the calibration... mine was interpolated directly from a '02 Z06 Vette PCM for the LT1 PCM.
next?
I didn't say the Z06 maf is bad. I said that it's not meant for our cars. And it's wonderful that you have the calibration values and everything, but do you really think I don't have those and didn't think about trying them already?
Also, I probably don't need to tell you that those were made for a different engine, program and ecm?
Take your car to the dyno and watch your graph.
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Joined: Jun 2003
Posts: 1,439
From: New Jersey
Registered User
Joined: Feb 2002
Posts: 5,645
From: Bridgewater, MA
I dont have my chart, but I gained 5rwhp and 5rwtq across the whole band by using the ZO6 MAF (descreened) versus the stock (descreened) MAF. A/F stayed the same when they were swapped. 
It worked fine for me, but Ion gave me tune that didnt work out well and it may have had something to do with it. By the way, Ion is a class act. Thanks for the tune last week. hopefully we can come up with something in the spring for the blower. I am done trying to get the N/A tune down. Blower is going on.
It worked fine for me, but Ion gave me tune that didnt work out well and it may have had something to do with it. By the way, Ion is a class act. Thanks for the tune last week. hopefully we can come up with something in the spring for the blower. I am done trying to get the N/A tune down. Blower is going on.
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Joined: Jul 2001
Posts: 4,577
From: DeKalb, IL
Originally posted by RealQuick
I dont have my chart, but I gained 5rwhp and 5rwtq across the whole band by using the ZO6 MAF (descreened) versus the stock (descreened) MAF. A/F stayed the same when they were swapped. It worked fine for me, but Ion gave me tune that didnt work out well and it may have had something to do with it. By the way, Ion is a class act. Thanks for the tune last week. hopefully we can come up with something in the spring for the blower. I am done trying to get the N/A tune down. Blower is going on.
I dont have my chart, but I gained 5rwhp and 5rwtq across the whole band by using the ZO6 MAF (descreened) versus the stock (descreened) MAF. A/F stayed the same when they were swapped.
It worked fine for me, but Ion gave me tune that didnt work out well and it may have had something to do with it. By the way, Ion is a class act. Thanks for the tune last week. hopefully we can come up with something in the spring for the blower. I am done trying to get the N/A tune down. Blower is going on.
Those 5-6 RWHP were from 1 extra degree of timing I added at WOT (I also did some changes to lower RPM tables), but obviously you also have a fuel delivery problem.... (could it be...... *cough* the 24 pound injectors?
*cough*) so I'd worry about that first... especially if you're going with a supercharger.Sorry, I haven't had time to reply, but will do it this weekend.
Thanks.
PS. Are you sure those 5RHWP/RWTQ weren't only temporary? Also, with your power varying from run to run, are you still sure it was the MAF that added those 5 RWHP?
Last edited by madwolf; Oct 31, 2003 at 11:47 AM.
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Joined: Feb 2002
Posts: 5,645
From: Bridgewater, MA
Originally posted by madwolf
Well... you saw that your car dynoed less that last time under the same circumstances, so I'm about 99% sure it's not in the tune. Plus, you also saw that this time your car ran much leaner than last time at 40 PSI. So if the conditions were the same, you would've still gained about what, 5-6 RWHP over the other tune, right? (I forgot what the difference was)
Those 5-6 RWHP were from 1 extra degree of timing I added at WOT (I also did some changes to lower RPM tables), but obviously you also have a fuel delivery problem.... (could it be...... *cough* the 24 pound injectors? *cough*) so I'd worry about that first... especially if you're going with a supercharger.
Sorry, I haven't had time to reply, but will do it this weekend.
Thanks.
PS. Are you sure those 5RHWP/RWTQ weren't only temporary? Also, with your power varying from run to run, are you still sure it was the MAF that added those 5 RWHP?
Well... you saw that your car dynoed less that last time under the same circumstances, so I'm about 99% sure it's not in the tune. Plus, you also saw that this time your car ran much leaner than last time at 40 PSI. So if the conditions were the same, you would've still gained about what, 5-6 RWHP over the other tune, right? (I forgot what the difference was)
Those 5-6 RWHP were from 1 extra degree of timing I added at WOT (I also did some changes to lower RPM tables), but obviously you also have a fuel delivery problem.... (could it be...... *cough* the 24 pound injectors?
*cough*) so I'd worry about that first... especially if you're going with a supercharger.Sorry, I haven't had time to reply, but will do it this weekend.
Thanks.
PS. Are you sure those 5RHWP/RWTQ weren't only temporary? Also, with your power varying from run to run, are you still sure it was the MAF that added those 5 RWHP?
I believe I ran the ZO6 MAF first, then swapped the stocker in. Then I established which one was better and started playing with fuel pressure from there. I believe thats what happened. I'll have to look at my notes at home.
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Joined: Jun 2003
Posts: 2,626
From: Baylor University - TX
I have a buddy in Houston who did the Z06 MAF conversion and saw a 4 rwhp gain from it...he had full exhaust done....no cam/heads yet...
So its up to you...
Plus considering MAF ends are around $100, why not spend the extra $50 for a complete MAF conversion...?
So its up to you...
Plus considering MAF ends are around $100, why not spend the extra $50 for a complete MAF conversion...?
Last edited by FacelessZ; Oct 31, 2003 at 12:14 PM.
Registered User
Joined: Nov 2002
Posts: 1,612
From: Oklahoma
Originally posted by FacelessZ
I have a buddy in Houston who did the Z06 MAF conversion and saw a 4 rwhp gain from it...he had full exhaust done....no cam/heads yet...
So its up to you...
Plus considering MAF ends are around $100, why not spend the extra $50 for a complete MAF conversion...?
I have a buddy in Houston who did the Z06 MAF conversion and saw a 4 rwhp gain from it...he had full exhaust done....no cam/heads yet...
So its up to you...
Plus considering MAF ends are around $100, why not spend the extra $50 for a complete MAF conversion...?
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Joined: Mar 2003
Posts: 465
From: The Great State of Texas.
Not if you take the ends off the sensor, you don't.
I love thes 5rwhp gains. Dyno variance can give you more than that. I would look for E/T and trap speed differences.
Me, I had high ported stock ends, and just swapped them out for stock screened ends. I'd spend the money on something better.
BTW, every tuner I have seen has said to stick with the stocker. I don't know why...
I love thes 5rwhp gains. Dyno variance can give you more than that. I would look for E/T and trap speed differences.
Me, I had high ported stock ends, and just swapped them out for stock screened ends. I'd spend the money on something better.
BTW, every tuner I have seen has said to stick with the stocker. I don't know why...
Registered User
Joined: Feb 2002
Posts: 5,645
From: Bridgewater, MA
Originally posted by HM Murdock
Not if you take the ends off the sensor, you don't.
I love thes 5rwhp gains. Dyno variance can give you more than that. I would look for E/T and trap speed differences.
Me, I had high ported stock ends, and just swapped them out for stock screened ends. I'd spend the money on something better.
BTW, every tuner I have seen has said to stick with the stocker. I don't know why...
Not if you take the ends off the sensor, you don't.
I love thes 5rwhp gains. Dyno variance can give you more than that. I would look for E/T and trap speed differences.
Me, I had high ported stock ends, and just swapped them out for stock screened ends. I'd spend the money on something better.
BTW, every tuner I have seen has said to stick with the stocker. I don't know why...
Talk about variance in conditions and thats run to run!I gained it on the dyno with 10 miutes of each pull. No variance there. (maybe engine temp).
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Joined: Jul 2001
Posts: 752
From: Double Oak TX
I wouldn't mess with it at all. Honestly don't know anything about the ZO6 MAF, but if the tables are different you may need to use LT1edit to reset them properly.
Also........ I've personally dyno tested a ported MAF (actually billet ends and gutted guts) and a stock LT4 MAF. There was no difference in hp output on a bolt on LT4. Removing the screen was worth 2-3 hp.
Also........ I've personally dyno tested a ported MAF (actually billet ends and gutted guts) and a stock LT4 MAF. There was no difference in hp output on a bolt on LT4. Removing the screen was worth 2-3 hp.