Idle issues with new cam
Thread Starter
Staging Lane
Joined: Nov 2001
Posts: 74
Likes: 0
From: Birmingham, AL USA
Idle issues with new cam Question for the board. Just buttoned up my updated H/C setup with much bigger cam (see sig). Car is running strong, and we're in the process of sending Ed Wright some data to fine-tune the PCM.
Only drivability issue is with the idle: Ed set it at 900-950 for my prior ST II package, and we drilled the TB hole to optimize the Pintle counts.
On the new setup, rpms drop to idle, then below (to about 5-600) and then back up to 900 where it settles. Car does NOT stall out at any time but does lope (as expected). Pintle counts are 40ish with AC off, and 90ish with AC on.
Any thoughts or suggestions from anyone or is this the price of admission for a large cam?
Only drivability issue is with the idle: Ed set it at 900-950 for my prior ST II package, and we drilled the TB hole to optimize the Pintle counts.
On the new setup, rpms drop to idle, then below (to about 5-600) and then back up to 900 where it settles. Car does NOT stall out at any time but does lope (as expected). Pintle counts are 40ish with AC off, and 90ish with AC on.
Any thoughts or suggestions from anyone or is this the price of admission for a large cam?
Teching In
Joined: Dec 2001
Posts: 48
Likes: 0
From: VA
Re: Idle issues with new cam </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by SPEED DOG:
<strong>Pintle counts are 40ish with AC off, and 90ish with AC on.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ignorant question: What are 'Pintle counts' ???
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
<strong>Pintle counts are 40ish with AC off, and 90ish with AC on.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ignorant question: What are 'Pintle counts' ???
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
