Newbie with a ?
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Teching In
Joined: Jun 2002
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From: Montgomery Village, MD
Newbie with a ? I just installed the SLP LT headers and I think I lost HP. What can I do to get it back? My mods are in my sig. I was thinking a Cam or a CAI but the Cam is major $$$ and I cant decide on a CAI unit.
Launching!
Joined: Feb 2002
Posts: 200
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From: CA
Re: Newbie with a ? The extra noise may be confusing any gains you did get. However, some folks have noticed that they run rich after header installs.
My advice would be to dyno the car and get an Atap reading to be sure, If you are not seeing any gains a MAFT may be needed.
<small>[ June 28, 2002, 08:04 PM: Message edited by: May Spin ]</small>
My advice would be to dyno the car and get an Atap reading to be sure, If you are not seeing any gains a MAFT may be needed.
<small>[ June 28, 2002, 08:04 PM: Message edited by: May Spin ]</small>
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Joined: Nov 2001
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From: Live Oak, FL - in the woods where the creatures lurk.
Re: Newbie with a ? I agree. These pcm's are pretty good at adapting, but custom tuning will probably eke out more gains. Sometimes a pcm reset coupled with some mileage will help-not sure why that is-but maybe when the parameters start from scratch the pcm can adapt better.
Two things you need to stay on top of what the engine is doing: you need a scanner (Autotap, etc), and a Helms manual to help you deal with any codes the pcm posts.
Two things you need to stay on top of what the engine is doing: you need a scanner (Autotap, etc), and a Helms manual to help you deal with any codes the pcm posts.
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Joined: Nov 2001
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From: Mi./Al.
Re: Newbie with a ? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Woody:
<strong> Where can I get one of these scanners and a the manual that shows the codes?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Autotap is a great tool but you need a laptop computer, here's a OBD II system tester that work fine http://www.sunpro.com/cgi-bin/web_st...=4940185_14679 . I got mine from NAPA with a cross reference part number of 392-3028 for $300, it may not be as handy as an Autotap but it's a lot easier to use.
The Helms service manuals are worth having, you can get the three piece set from www.phoenixpontiacbuickgmc.com/ .
<strong> Where can I get one of these scanners and a the manual that shows the codes?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Autotap is a great tool but you need a laptop computer, here's a OBD II system tester that work fine http://www.sunpro.com/cgi-bin/web_st...=4940185_14679 . I got mine from NAPA with a cross reference part number of 392-3028 for $300, it may not be as handy as an Autotap but it's a lot easier to use.
The Helms service manuals are worth having, you can get the three piece set from www.phoenixpontiacbuickgmc.com/ .
Re: Newbie with a ? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LeadFoot:
<strong>I just installed the SLP LT headers and I think I lost HP. What can I do to get it back? My mods are in my sig. I was thinking a Cam or a CAI but the Cam is major $$$ and I cant decide on a CAI unit.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Careful with SOTP (seat of the pants) assumptions. A lot of mods (especially exhaust) will wipe out your low end, but increase your peak horsepower.
If you are convinced it lost HP over the entire range, you may be running pig rich now, which will kill your horsepower. Get a Mass Air Flow Translator from one of the listed sponsers. You will be able to lean out your setup a little bit with one of these and gain some HP back.
<strong>I just installed the SLP LT headers and I think I lost HP. What can I do to get it back? My mods are in my sig. I was thinking a Cam or a CAI but the Cam is major $$$ and I cant decide on a CAI unit.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Careful with SOTP (seat of the pants) assumptions. A lot of mods (especially exhaust) will wipe out your low end, but increase your peak horsepower.
If you are convinced it lost HP over the entire range, you may be running pig rich now, which will kill your horsepower. Get a Mass Air Flow Translator from one of the listed sponsers. You will be able to lean out your setup a little bit with one of these and gain some HP back.
Re: Newbie with a ? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Woody:
<strong>Another new guy here...just got my 99 Z28 and haven't even had a chance to start playing with it yet. Where can I get one of these scanners and a the manual that shows the codes?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I personally prefer Thunder Racing, because they have a wide selection and have never given me the shaft. They sell Autotap.
As for the Helms manual, I personally haven't purchased one because most of the Autotap codes you will see somebody on here has had the same problem. You can usually get plenty of information on the code by simply searching this site (gotta love the SEARCH feature).
Just my .02
<strong>Another new guy here...just got my 99 Z28 and haven't even had a chance to start playing with it yet. Where can I get one of these scanners and a the manual that shows the codes?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I personally prefer Thunder Racing, because they have a wide selection and have never given me the shaft. They sell Autotap.
As for the Helms manual, I personally haven't purchased one because most of the Autotap codes you will see somebody on here has had the same problem. You can usually get plenty of information on the code by simply searching this site (gotta love the SEARCH feature).
Just my .02
