Boost, Timing, KR and You! - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Thread Tools Search this Thread
Old 04-03-2007, 02:32 AM   #21
Senior Member
True Car Nut
Join Date: Aug 2003
Location: Salina, KS
Posts: 5,246
Thanks: 0
Thanked 0 Times in 0 Posts
TrueWildMan is on a distinguished road

Originally Posted by San Juan Cruiser
OK I took a 250mi drive yesterday and the highest timing I saw WOT was 19* avg was about 17. Apparently the PCM is slowly pulling my timing back since the drop in pulley size.
According to Rogue'* post, that'* sounds good for a 3.4" pulley. 15* is stock, so you'll want 18-20, 17 as an average doesn't sound bad. Now, the 18-20 is WOT.

If the average WOT was 17, then you hit some lower numbers WOT, too then. What was the WOT range you were getting?
TrueWildMan is offline   Reply With Quote
Old 04-04-2007, 10:41 AM   #22
Senior Member
Posts like a Turbo
Join Date: Sep 2005
Location: Cortez Co
Posts: 292
Thanks: 0
Thanked 0 Times in 0 Posts
San Juan Cruiser is on a distinguished road

when I first take off and hit WOT it starts @ 19-20* then slowly drops to the 15-17* at the top of the gear. It then drops to 12 for the shift then slowly works back up to about 15-17* range. At this point I'm convinced things are fine. All Kr has gone away and although my timing is nowhere near what it was on the stock pulley it runs WAY better.
San Juan Cruiser is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Difference From LS and GS Timing Gears and Chain? REGAL GUY Buick 5 07-31-2014 07:13 PM
Boost vs timing Danthurs General GM Chat 4 04-10-2009 07:56 PM
Boost Control Solenoid Maintenance and Boost Control Actuator Test for low Boost* Toddster Trouble shooting + Test Procedures 0 03-21-2009 07:24 PM
More boost via boost controller... DanCulkin Performance, Brainstorming & Tuning 14 07-02-2007 12:02 PM
low stock Boost vs high stock boost hvactech Performance, Brainstorming & Tuning 12 05-10-2005 11:14 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 12:59 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.