Results 1 to 3 of 3
-
06-19-2010, 12:07 PM #1
- Join Date
- Oct 2008
- Location
- Crystal Lake, IL
- Posts
- 4
Silver- 81 Malibu
'New motor - bogs terribly off idle, undriveable
So I had a place locally build me an LS7 and set me up with a base SD tune to get me going until they can get me in for a full tune. It idles pretty decently, but give it any gas and it bogs. No throttle response at all and the car is totally undriveable. Here are the specs:
LS7 - 12:1 CR
245 Trick flow heads
Comp 243/251 .653/.660 110 LSA
Fast 102mm intake, NW 102 Cable TB
42.5# injectors
Not running a MAF. I verified I have 58psi at the rail at idle. I also verified my TPS is at 0% when it should be. My IAC count is 50-60 or so when its warmed up, but they are up there when its cold. The IAC is wide open when its cold and it sounds like the thing could suck up a small volkswagen.
I have HPTuners, but I am pretty clueless with most of it. Ive tried going through some idle tuning procedures online, but the ones ive found assume you are running a MAF.
Any ideas on where to start with this? Thanks in advance.
-
06-19-2010, 01:05 PM #2
- Join Date
- Apr 2008
- Location
- Madison, WI
- Posts
- 7,006
1999 Formula WS6 M6-sold- 2001 Silverado Z71
If the idle is fine then there isn't any need to tune it at this point. If I were you I'd start tuning the VE tables first. I read through a good tuning guide once and printed it off. Its called CPIG's HPtuners Vehicle tuning guide. I did a quick google search but can't find the download at this moment.
-
06-19-2010, 01:08 PM #3
- Join Date
- Oct 2008
- Location
- Crystal Lake, IL
- Posts
- 4
Silver- 81 Malibu
Thanks for the reply. I actually just gave it more fuel from 400-1200 and its definitely better. Going to see if its driveable now and go from there. Need to get at least a few legitmate break in miles on this thing.
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Idle air control motor checked find but not working.
By Street Fighter in forum General HelpReplies: 13Last Post: 07-31-2015, 02:51 PM -
Help: Rough idle/motor dying since adding 242R cam
By thomasterrible in forum General HelpReplies: 2Last Post: 02-02-2014, 06:35 AM -
Need Help... Motor Knocking, Sputtering, Rough Idle
By whiteboy in forum Internal EngineReplies: 18Last Post: 01-30-2011, 05:56 PM -
something is terribly wrong with my car
By kidA(somedayullnoit) in forum Computer & TuningReplies: 2Last Post: 02-18-2008, 05:15 PM -
Motor hesitation/poor idle.
By InsaneWs6TA in forum New Member IntroductionsReplies: 1Last Post: 12-07-2006, 10:45 AM
Bookmarks