need tuning help
11-03-2012, 01:18 PM
#1
On The Tree
Thread Starter
iTrader: (10)
Join Date: Jan 2009
Location: Home town Houston station in ft hood
Posts: 113
Likes: 0
Received 0 Likes
on
0 Posts
need tuning help ok my afr at idle is 14.5-16 and never goes below 14 and when i let off it is off the chart and backfires so place that tuned me screwed me good.
im strapped for cash at moment but willing to trade some tuning help for work or parts that ive got
im at stationed at fort hood any help would be appreciated
im strapped for cash at moment but willing to trade some tuning help for work or parts that ive got
im at stationed at fort hood any help would be appreciated
11-04-2012, 12:05 PM
#3
On The Tree
Thread Starter
iTrader: (10)
Join Date: Jan 2009
Location: Home town Houston station in ft hood
Posts: 113
Likes: 0
Received 0 Likes
on
0 Posts
dosnt drop below 14 ever while cruising, idling,accelerating. when cruising it bounces all over the place too. flys off the chart when i let off throttle to shift or brake
11-04-2012, 12:23 PM
#5
11 Second Club
iTrader: (4)
Join Date: Aug 2004
Location: DFW
Posts: 470
Likes: 0
Received 0 Likes
on
0 Posts
You should remain stoich while idling or part throttle driving. Your AFR won't drop below stoich until you enter PE under WOT which should read close to 12.5. The AFR going nuts under shifts or braking is normal DFCO.
Trending Topics
11-04-2012, 07:14 PM
#9
Open headers will not give you a reliable O2 reading at idle or decel unless your pipe extends 18-24" past the O2 sensor.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.