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09-13-2007
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#11 | |
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Re: secondaries not opening at full throttle
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09-13-2007
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#12 |
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Join Date: Aug 2007
Location: Bison, SD
Posts: 106
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Re: secondaries not opening at full throttle
plugs still look like new...but anyway, I have determined the problem. I checked all plug wires last week before disassembly and all coils were fine...so didnt check them again, but should have. So I checked; I have no spark to two cylinders. so i guess i need a coil pack...I knew I should have just bit the bullet and installed them while I was under there the first time. Are any aftermarket coilpacks worth getting over the factory units? Thank you all for your help.
 Jarvis |
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09-13-2007
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#13 |
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: secondaries not opening at full throttle
Jarvis, The OEM/GM coils are most people's choice. Most of the aftermarket stuff is just hype, all brag & no real gains.
 Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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09-15-2007
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#14 | |
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
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Re: secondaries not opening at full throttle
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If the secondaries are a PITA just yank them out. No secondaries No Headache.  Pete
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'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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09-15-2007
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#15 |
Join Date: Jun 2006
Location: Thunderbolt, Ga.
Posts: 253
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Re: secondaries not opening at full throttle
I run the MSD coils and I love them. I use them on my mustang too (29psi). I am coinfident that the MSD coils + ignition box will light ANY mixture. If you are going to replace them anyway, why not put in the best. While your in there you could wire in a box and have greater control over timing. Or if you are lazy you could wire in one of the amplifier boxes. They give no timing control but increase voltage to coils, are adjustable, and have only 3 wires to hook up. MSD DIS-4 has 20 wires to hook up, but it is simple.
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IT IS THE FATE OF THE INNOCENT TO MEET WITH DEATH!!! |
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09-15-2007
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#16 |
Join Date: Dec 2003
Location: McHenry, Il.
Posts: 6,607
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Re: secondaries not opening at full throttle
If the secondaries are a PITA just yank them out.
No secondaries No Headache. No performance issues w/o secondaries?
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http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln |
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09-16-2007
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#17 | |
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
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Re: secondaries not opening at full throttle
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Bryan,come over test drive my Z or a friends Z both 350ci w/no secondaries and see for yourself.
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'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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09-16-2007
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#18 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: secondaries not opening at full throttle
pete,do you need andifferent tune/ prom if you pull the secondaries. have you tested before and after at the strip . i would really like to do this I am so tired of chasing secondary gremlins. love to here your thoughts on this
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09-16-2007
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#19 | |
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
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Re: secondaries not opening at full throttle
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Yes,it needs some chip changes,nothing a good tuner can't do. I have done a before and after and saw a gain of 4-6 RWHP on my 350ci and about 8-10 RWHP on the big inchers,nothing to brag about. Lost no low end power from 2k rpm & higher. The best part you eliminate some high priced secondary parts. Pete
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'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage Last edited by Pete; 09-16-2007 at 06:21 PM. |
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09-16-2007
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#20 |
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Join Date: Dec 2003
Location: McHenry, Il.
Posts: 6,607
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Re: secondaries not opening at full throttle
Nice to know if you are having issues with the secondaries!
And as usual I believe you Pete-- no doubting Thomas here! Just wanted to confirm for the others since I remember you telling me abt your removal of them on your POLO GREEN Z.
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http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln |
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