Jump to content

Tuning The Iat/Spark Table On Radix Lq9 Trucks


madden

Recommended Posts

I just picked up a 2003 Silverado SS complete with a radix (MP112). I'm starting to data-log the truck and will start tweaking on the tune soon. I was wondering how much "softening" of the IAT/Spark table should be done. Obviously the supercharger will cause the IATs to go higher than a stock truck and the stock tuning pulls quite a bit of timing at 130 degrees IAT and up. Any thoughts on how much of the timing pull can be removed without causing issues? In a quarter mile run I noticed the truck starts to fall on its face around the 1000ft mark. I want a nice running street truck that has a safe tune but 10 to 12 degrees total timing near the end of the quarter mile seems very weak to me. FYI: The truck is making 8 psi on an autometer gauge.

 

 

Thoughts?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...