LT1 Help
Thread Starter
On The Tree
Joined: Mar 2002
Posts: 154
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From: Birmingham,AL
LT1 Help Since there are not really popular LT1 sites I am posting my ? here.
Alright, about a 2 weeks ago I changed my opti-spark plugs and wires, then ported to MAF. Since then I have noticed that the car jerks at full throttle especially around 5300rpm. I was wondering what could cause this. I have checked all plugs and wires and it still does it. Could it be the ignition coil, or the injectors? I am really our of options. I took it to the track last night and I have lost .4tenths and 5mph off of my old times. The car is a 1997 TransAm A4 with only 54k miles on her. I pulled one of the plugs also and it had white on the electrode which is a sign of running lean. I am tottaly and utterly stumped as to what could cause this. Please help!
<img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
<small>[ April 20, 2002, 10:54 PM: Message edited by: ScreamingChicken ]</small>
Alright, about a 2 weeks ago I changed my opti-spark plugs and wires, then ported to MAF. Since then I have noticed that the car jerks at full throttle especially around 5300rpm. I was wondering what could cause this. I have checked all plugs and wires and it still does it. Could it be the ignition coil, or the injectors? I am really our of options. I took it to the track last night and I have lost .4tenths and 5mph off of my old times. The car is a 1997 TransAm A4 with only 54k miles on her. I pulled one of the plugs also and it had white on the electrode which is a sign of running lean. I am tottaly and utterly stumped as to what could cause this. Please help!
<img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
<small>[ April 20, 2002, 10:54 PM: Message edited by: ScreamingChicken ]</small>
Re: LT1 Help Possibly Ignition timing.I've also seen LT1's not like modified MAF's.I'd try putting a good stock MAF back on the car & see what happens.
<small>[ April 21, 2002, 12:36 AM: Message edited by: BYE RICE ]</small>
<small>[ April 21, 2002, 12:36 AM: Message edited by: BYE RICE ]</small>
Thread Starter
On The Tree
Joined: Mar 2002
Posts: 154
Likes: 0
From: Birmingham,AL
Re: LT1 Help If it is the ignition timing, does anyone know how to adjust it? I though the engine automatically advanced or retarted it?? I dont think its the MAF because I ported it before and seemed to get a gain. Could the plugs being gapped to .55 instead of .50 on the NGK's cause this? I think I just need to shut my mouth and find someone with AutoTap. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
TECH Senior Member
Joined: Nov 2001
Posts: 7,234
Likes: 1
From: Mississauga, Ontario
Re: LT1 Help </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JohnSS:
<strong>Just get an LS1...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hehe, I agree! (and I own an LT1!) <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Seriously though, if you need LT1 help, try www.camaroz28.com, they have a HUGE LT1 tech section.
For me, my LT1 is just a stepping stone until I can afford to get back into the far superior LS1 again.
<strong>Just get an LS1...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hehe, I agree! (and I own an LT1!) <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Seriously though, if you need LT1 help, try www.camaroz28.com, they have a HUGE LT1 tech section.
For me, my LT1 is just a stepping stone until I can afford to get back into the far superior LS1 again.
