Trying to get a better grasp on tuning for WB 11.1-11.3

fst · 08-12-2008, 12:56 PM

So right now im tuning with 89octane, prolly not the smartest thing to do but im giving it a try and thus far its going fairly well. I got AL103 with the electrode arm cut in half and gapped to like 0.040. I just swapped out my washer fluid nozzle from the M2, which looked broken when I took it out, to a larger M5. the PCM’s afr is at 10.5 and I only have gotten on the throttle as much as 80-85% throttle. Barely any blips of KR but I did go a bit more and I usually get 1-2* of KR while commanding 18-20* of timing on the 3.1” pulley. My PLX-SMR WB is showing between 10.1-10.5. and my NB o2s are ~955-970.
Im tuning via PT and I have the AE enrichment table above 85-100% at 132%, stock’s at 128%. I want to be able to dial in at ~11.1-11.3 KR-free. I do have 42.5# injectors, so I can add fuel whenever, its just when I try to dial in at 11.1-11.3 while the pcm’s also at 11.3 I get KR and need to lower timing to 15*. Any higher and I get knock if I add timing. Any suggestions to adjust in the PT? im also tuning fuel on the fly with the AFC2.2 so I don’t have to retune the 7250+ MAF table quite often. I can e-mail a copy of my bin if anyone’s curious and willing to help

Thanks in advance

VinnieGTP · 08-12-2008, 07:31 PM

That's pretty lean isn't it? I thought the sweet spot for a street tune on our cars is around 11.8.

fst · 08-12-2008, 09:12 PM

quite the oposite actually, its rather rich. remember that at diela nd cruise u want to stay stoich at 14.7:1, and in PE mode u want to go richer to prevent detonation and possible engine failure so u want to go lower to be richer.

VinnieGTP · 08-13-2008, 01:44 AM

Oh ok, that makes more sence then. I'm a tuning n00b

TDCRacing · 08-13-2008, 10:49 AM

Quote:

Originally Posted by VinnieGTP

I'm a tuning n00b

Riiiiggghhhtt

fst · 08-13-2008, 10:50 AM

x2, i was gonna say, isnt vinnie running the mp112 hybrid?

TDCRacing · 08-13-2008, 10:53 AM

As far as the o2's they do look rather rich. Not to sure since you have the alky setup but it seems like PE o2's should be in the 920-930's. Maybe lower. Now with my setup my PE 02's should be anywhere in the 890's to 920's. BUT since it is around 103 in GA you can bet there in the 920's right now.

VinnieGTP · 08-13-2008, 11:11 AM

Quote:

Originally Posted by fst

x2, i was gonna say, isnt vinnie running the mp112 hybrid?

I'm running an actual MP112, but I didn't do a lick of the tuning.

Reptile · 08-13-2008, 11:29 AM

What percentage of Alky are you running right now?

TDCRacing · 08-13-2008, 06:34 PM

Quote:

Originally Posted by Reptile

What percentage of Alky are you running right now?

This is the man to talk to concerning alky and other variouse things. He is the only one that i know personally that has a good amount of experience with alky and tuning.

08-12-2008, 12:56 PM	#1
fst GT Level Member Join Date: Dec 2007 Posts: 485 Thanks: 4 Thanked 4 Times in 4 Posts iTrader: (0)	Trying to get a better grasp on tuning for WB 11.1-11.3 So right now im tuning with 89octane, prolly not the smartest thing to do but im giving it a try and thus far its going fairly well. I got AL103 with the electrode arm cut in half and gapped to like 0.040. I just swapped out my washer fluid nozzle from the M2, which looked broken when I took it out, to a larger M5. the PCM’s afr is at 10.5 and I only have gotten on the throttle as much as 80-85% throttle. Barely any blips of KR but I did go a bit more and I usually get 1-2* of KR while commanding 18-20* of timing on the 3.1” pulley. My PLX-SMR WB is showing between 10.1-10.5. and my NB o2s are ~955-970. Im tuning via PT and I have the AE enrichment table above 85-100% at 132%, stock’s at 128%. I want to be able to dial in at ~11.1-11.3 KR-free. I do have 42.5# injectors, so I can add fuel whenever, its just when I try to dial in at 11.1-11.3 while the pcm’s also at 11.3 I get KR and need to lower timing to 15*. Any higher and I get knock if I add timing. Any suggestions to adjust in the PT? im also tuning fuel on the fly with the AFC2.2 so I don’t have to retune the 7250+ MAF table quite often. I can e-mail a copy of my bin if anyone’s curious and willing to help Thanks in advance __________________ 9”Cone Filter/4”FWI/LQ4 MAF/Ported 99TB/Ported M90/3.1” MPS/VS Cam/Pacesetter Headers/2.5”Catback w/MagnaFlow Cat/PowrTuner/AFC 2.2/Timing Commander/Devils Own Progressive Controller w/M2 Nozzle/LS1M Scanner/ZZP Stage 1 Fuel Pump Rewire/PRJ FP/42.5# Injectors Looking for 12s passes

08-12-2008, 07:31 PM	#2
VinnieGTP GTX Level Member Join Date: Jan 2008 Location: Dayton, OH Posts: 604 Thanks: 0 Thanked 2 Times in 2 Posts iTrader: (0)	Re: Trying to get a better grasp on tuning for WB 11.1-11.3 That's pretty lean isn't it? I thought the sweet spot for a street tune on our cars is around 11.8. __________________ 2008 Greater Ohio Club Grand Prix President My Mod List

08-12-2008, 09:12 PM	#3
fst GT Level Member Join Date: Dec 2007 Posts: 485 Thanks: 4 Thanked 4 Times in 4 Posts iTrader: (0)	Re: Trying to get a better grasp on tuning for WB 11.1-11.3 quite the oposite actually, its rather rich. remember that at diela nd cruise u want to stay stoich at 14.7:1, and in PE mode u want to go richer to prevent detonation and possible engine failure so u want to go lower to be richer. __________________ 9”Cone Filter/4”FWI/LQ4 MAF/Ported 99TB/Ported M90/3.1” MPS/VS Cam/Pacesetter Headers/2.5”Catback w/MagnaFlow Cat/PowrTuner/AFC 2.2/Timing Commander/Devils Own Progressive Controller w/M2 Nozzle/LS1M Scanner/ZZP Stage 1 Fuel Pump Rewire/PRJ FP/42.5# Injectors Looking for 12s passes

08-13-2008, 01:44 AM	#4
VinnieGTP GTX Level Member Join Date: Jan 2008 Location: Dayton, OH Posts: 604 Thanks: 0 Thanked 2 Times in 2 Posts iTrader: (0)	Re: Trying to get a better grasp on tuning for WB 11.1-11.3 Oh ok, that makes more sence then. I'm a tuning n00b __________________ 2008 Greater Ohio Club Grand Prix President My Mod List

08-13-2008, 10:50 AM	#6
fst GT Level Member Join Date: Dec 2007 Posts: 485 Thanks: 4 Thanked 4 Times in 4 Posts iTrader: (0)	Re: Trying to get a better grasp on tuning for WB 11.1-11.3 x2, i was gonna say, isnt vinnie running the mp112 hybrid? __________________ 9”Cone Filter/4”FWI/LQ4 MAF/Ported 99TB/Ported M90/3.1” MPS/VS Cam/Pacesetter Headers/2.5”Catback w/MagnaFlow Cat/PowrTuner/AFC 2.2/Timing Commander/Devils Own Progressive Controller w/M2 Nozzle/LS1M Scanner/ZZP Stage 1 Fuel Pump Rewire/PRJ FP/42.5# Injectors Looking for 12s passes

Trying to get a better grasp on tuning for WB 11.1-11.3

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08-13-2008, 10:53 AM	#7
TDCRacing Community Vendor Join Date: Jan 2008 Location: WarnerRobins,GA Posts: 2,751 Thanks: 5 Thanked 18 Times in 18 Posts iTrader: (11)	Re: Trying to get a better grasp on tuning for WB 11.1-11.3 As far as the o2's they do look rather rich. Not to sure since you have the alky setup but it seems like PE o2's should be in the 920-930's. Maybe lower. Now with my setup my PE 02's should be anywhere in the 890's to 920's. BUT since it is around 103 in GA you can bet there in the 920's right now. __________________ 1999 Silver GTP~HP Tuners~XP cam~ZZP FS Intercooler~#4 FMHE~ZZP 78mm Billet Throttlebody~LQ4 MAF~Lucas 42.5's~ZZP SS Headers~2.8 MPS~PRJ fuel logs~Ported & Polished S/C~TDCRacing FWI ~Built Tranny-3.29's-7/8's chain-Intense forged Input Shaft~ Running mid-high 12's Get you're TDCRacing Fenderwell Intake Today! Last edited by TDCRacing; 08-13-2008 at 11:14 AM.

08-13-2008, 11:29 AM	#9
Reptile Community Vendor Join Date: Dec 2007 Location: Kansas City, MO Posts: 1,630 Thanks: 0 Thanked 19 Times in 18 Posts iTrader: (8)	Re: Trying to get a better grasp on tuning for WB 11.1-11.3 What percentage of Alky are you running right now? __________________ GreenBastardPerformance2000 GTP Coupe (the green bastard) XP, Pacesetters, LS1 TB & MAF,MSD System, P&P LIM, P&P GenV w/ 3.2, 3.0, 2.8, Devil'sOwn Injected 100% Methanol,PowerTuned, TripleEdge Trans w/3.29's 12.92 @ 105mph

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