Need some advice, still getting some KR on mild modded LS1
05-09-2016, 08:07 AM
#1
Need some advice, still getting some KR on mild modded LS1 Currently getting 1-2* of KR that isn’t consistant while at WOT. It’ll fluctuate from zero to 1-2*. I’m running an OLMAF and the wb sensor’s in the driver side O2 bung. Still running stock manifolds. My afr is anywhere between 12.2:1-12.6:1 depending on fuel adjustments. Timing’s been set at 24-27* depending on how i adjust the timing via IAT (i have an IAT **** adjuster). always run 92/93oct
Car has 133k miles and I picked it up back when it had 125k miles
Here’s my mods:
Lid
Tune
e-cutout
NGK TR-IX-55(?) cant remember, but they’re gapped at 0.054
Catch can (to see if limiting the amount of recycled oil helps lower KR but didn’t help much)
im using HPT. My KR delta cyl table is set at 5.0 from 2200-6500RPMs (tuning books says to enter the max of 8)
my max spark KR is set at 2* from 2200-6500RPMs
my KR recovery is set at 40.xmS starting at 3200RPMs and is at 36.xmS (the higher the value the quicker KR is recovered)
zeroed out the Torque Management tables
I noticed that if I run 13.0:1-13.2:1 I get only a max of 1* but running that lean scares the bejevus out of me
I’m planning on running seafoam and doing the top-end engine clean using the brake booster along with pouring it into the gas tank and lastly spraying into the TB using the deep solution seafoam at the same time to see if that helps.
Is there anything else I can try? My plans is getting LTs but that wont occur til possibly during the winter.
Thanks for reading and your help/input
Car has 133k miles and I picked it up back when it had 125k miles
Here’s my mods:
Lid
Tune
e-cutout
NGK TR-IX-55(?) cant remember, but they’re gapped at 0.054
Catch can (to see if limiting the amount of recycled oil helps lower KR but didn’t help much)
im using HPT. My KR delta cyl table is set at 5.0 from 2200-6500RPMs (tuning books says to enter the max of 8)
my max spark KR is set at 2* from 2200-6500RPMs
my KR recovery is set at 40.xmS starting at 3200RPMs and is at 36.xmS (the higher the value the quicker KR is recovered)
zeroed out the Torque Management tables
I noticed that if I run 13.0:1-13.2:1 I get only a max of 1* but running that lean scares the bejevus out of me
I’m planning on running seafoam and doing the top-end engine clean using the brake booster along with pouring it into the gas tank and lastly spraying into the TB using the deep solution seafoam at the same time to see if that helps.
Is there anything else I can try? My plans is getting LTs but that wont occur til possibly during the winter.
Thanks for reading and your help/input
05-11-2016, 09:47 PM
#2
Just recently had a 01 Z06 on the dyno with a cam swap only. No exhaust or air intake modification's, KR was everywhere. 100% stock tune & very safe. Don't remember if I aborted the run, it was bad enough their was no second run.
A simple change to TR6 plugs cleaned up most on the KR. I would suggest trying that, it's easy, cheap & simple
A simple change to TR6 plugs cleaned up most on the KR. I would suggest trying that, it's easy, cheap & simple
05-16-2016, 08:31 AM
#4
currently running TR55 but did some reading and thats sufficient for bolt-on ls1. i rmember that my motor mounts are shot and it does move around (revving it in park). the reason i suspect that is because 1) the chassis has ~133k miles and 2) i played around with the AR from 10.x to 12.x and still get 1-2* running 93oct and a can of chemtool b12 in the tank and did the top-engine clean with seafoam. thoughts on whether it is plausible its false due to worn motor mounts?