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09-03-2014, 02:28 PM
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#1 |
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Senior Member
Join Date: Oct 2003
Location: Lower Slower Delaware
Posts: 535
Likes: 22
Liked 269 Times in 99 Posts
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Re: Ls1 tuneup help
11 is pretty fat even if you want some fuel there for the load. Lean it out to 12.X and see if it picks up.
A good tuner would get you in the ballpark in a few pulls on a chassis dyne, know it's a hike but Danbury Chassis Dyno is very good.
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Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given" |
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09-03-2014, 03:42 PM
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#2 |
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Member
Join Date: Jul 2006
Location: waldorf
Posts: 220
Likes: 14
Liked 53 Times in 28 Posts
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Re: Ls1 tuneup help
That is what I was wondering if that was too rich at the hit or did they throw a bunch of fuel right away and then let it lean out as the rpms increased. This is my first fuel injected car.
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09-03-2014, 05:49 PM
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#3 |
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Senior Member
Join Date: Nov 2003
Location: Donaldsonville, LA
Posts: 980
Likes: 17
Liked 228 Times in 70 Posts
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Re: Ls1 tuneup help
It sounds like it's pretty rich you need to try to lean out the areas that are showing rich the air fuel ratio should stay around 13.0. You may never see the ideal 60ft with a 350 transmission. I would say ideal 60ft for a 200 transmission running 10.40s would be around 1.35.
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Jimmy "Cooter" Hidalgo, Jr. 4865 E/SA '04 GTO 4865 SS/GA '99 Firebird |
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09-03-2014, 07:17 PM
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#4 |
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Member
Join Date: Jul 2006
Location: waldorf
Posts: 220
Likes: 14
Liked 53 Times in 28 Posts
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Re: Ls1 tuneup help
Thanks fellas, I was hoping y'all would tell me it was too rich because that was the way I was leaning towards. I will work on that and hopefully I will see some improvement. I will probably have more questions later.
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09-03-2014, 08:38 PM
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#5 |
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Member
Join Date: Nov 2007
Location: Tonawanda, NY
Posts: 106
Likes: 0
Liked 0 Times in 0 Posts
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Re: Ls1 tuneup help
I have some FAST XFI 2.0 stuff here:
http://classracer.com/classforum/showthread.php?t=53092 Would work real good for you! |
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09-03-2014, 09:23 PM
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#6 |
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Senior Member
Join Date: Nov 2003
Location: Donaldsonville, LA
Posts: 980
Likes: 17
Liked 228 Times in 70 Posts
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Re: Ls1 tuneup help
LS1 requires an XIM ignition controller. You can use the xfi ecu and main harness, but it would still require an xim box and harness.
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Jimmy "Cooter" Hidalgo, Jr. 4865 E/SA '04 GTO 4865 SS/GA '99 Firebird |
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