AAAAAaaarrrgggg! Changed plugs now the car pops and sputters under boost

[DaySleeper]

I planned on going to the track and trying out the new transbrake but now the car pops and sputters on boost. I change the plugs from 23's with .028 gap to 24's with .032 gap just today. Is that possibly causing the problem??

I showed O2 around 200 and timing retard a whopping 17!! The fuel pressure is great and the the car idles nicely.

It did this crap right after I invited practically everyone I know to got to the track with me

 

[SS/GN]

Cracked plug Been their

Kevin

 

[DaySleeper]

I'm going back to 23's tomorrow. Car ran badass with those but didn't idle as nice. Oh well. Gotta give something to get something says my wife

 

[strikeeagle]

Perhaps you trashed a plug wire?

How much boost are you running? High boost will blow out the spark under a high gap scenario.

 

[DaySleeper]

Its funny, if I throttle it and stay below 20...no problem. We'll see tomorrow when I change them again. I noticed while changing the plugs that the heads are clamped down with studs instead of torque to yield bolts. The dude that put this car together did a nice job.

 

[NOTSOFAST]

check to see that you didn't cross any wires, it's not like that's never happened.

 

[DaySleeper]

Certainly possible but the car idles great so I don't think that's it. Going back to a fresh set of 23's with less gap and see what happens.

 

[TurboBuRick]

Don't you love how one thing always leads to another? It's like some type of turbo Buick curse.

Hope it's as simple as spark plugs.

RL

 

[1fast6]

sounds like plug gap to me. I had same issue. car would pop like crazy over 21#. regapped plugs and 23# all day...