secondaries not opening at full throttle

Originally Posted by SDZR-1

I put new plugs in last week and also pulled them last nite and all looked good...the car has a rich smell to it at times but not always. Hopefully I'll figure it out tonight...or I guess my weekend trip wont be so exciting

Porcelein still white,chalky, sooty, black and wet.....?

[SDZR-1]

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

[tomtom72]

Jarvis, The OEM/GM coils are most people's choice. Most of the aftermarket stuff is just hype, all brag & no real gains.


Tom

[Pete]

Originally Posted by tomtom72

Jarvis, The OEM/GM coils are most people's choice. Most of the aftermarket stuff is just hype, all brag & no real gains.


Tom

I agree 100% go with stockers.

If the secondaries are a PITA just yank them out.
No secondaries No Headache.

Pete

[8upZR1]

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.

[WB9MCW]

If the secondaries are a PITA just yank them out.
No secondaries No Headache.

No performance issues w/o secondaries?

[Pete]

Originally Posted by WB9MCW

If the secondaries are a PITA just yank them out.
No secondaries No Headache.

No performance issues w/o secondaries?

No driveability issues no performance issues.

Bryan,come over test drive my Z or a friends Z both 350ci
w/no secondaries and see for yourself.

[jonszr1]

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

[Pete]

Originally Posted by jonszr1

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

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

[WB9MCW]

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.