Sharktuning For Dummies (Me!)
08-18-2023, 06:00 PM
#1
Drifting
Thread Starter
Sharktuning For Dummies (Me!)
I am trying to focus on my 85 supercharged widebody. It hasn't been on the road since the supercharger/engine gave up the ghost driving back from Sharks in The Badlands. The low-compression engine that Marcus built for it has been replaced with a stock 89 S4 engine with decent miles, new Vortech V-3 S-i supercharger, I think I'll be around 4-6 psi of boost, no intercooler., New MAF, TPS, CPS, hall sender, knock sensors, Siemens injectors, all ignition components, fuel lines, vacuum lines, Deatschwerks fuel pump and regulator, temp sensors, injector connectors, etc. Externally, pretty much everything was replaced. After my long failed attempt at using VEMS for engine management (not even Hans and Colin could help me wrap my head around what it needed to work), I decided to go back to LH/EZK and Sharktune it instead. The car is running/idling ok, but it is far from tuned. I've watched the ST Youtube videos over and over and I am slowly learning to use the ST2, but I thought maybe those who have experience tuning with it could speed up my learning curve. So, I have questions, and I appreciate anyone willing to answer them.
I have an AEM wideband O2 sensor LSU 4.9 plumbed into the DS of the X-pipe and it's feeding an AFR gauge. I have a new stock Bosch O2 sensor feeding the LH. I see a disparity in the current AFR readings, the WBO2 shows near stoich at idle, but the stock O2 shows around 13 in the sharktuner. I believe I should be using the WBO2 to do the sharktuning, mine has a 5v analog output. Is this what should be connected to the sharktuner. If so, where/how?
I see some mention in the manual that I might need to start with a copy of a sharktuned ezk map since I am supercharged, or just do as suggested and retard the higher load values on the EZK Cruise map and also the high rpm cells on the EZK WOT maps by at least 1 degree for each pound of boost, or a blanket 6 degrees.
Does anyone have a step by step Sharktuning guide for a slow learner like me? Or, is it as simple as hook up the WBO2 and drive around letting it autotune to start and go from there?
I have an AEM wideband O2 sensor LSU 4.9 plumbed into the DS of the X-pipe and it's feeding an AFR gauge. I have a new stock Bosch O2 sensor feeding the LH. I see a disparity in the current AFR readings, the WBO2 shows near stoich at idle, but the stock O2 shows around 13 in the sharktuner. I believe I should be using the WBO2 to do the sharktuning, mine has a 5v analog output. Is this what should be connected to the sharktuner. If so, where/how?
I see some mention in the manual that I might need to start with a copy of a sharktuned ezk map since I am supercharged, or just do as suggested and retard the higher load values on the EZK Cruise map and also the high rpm cells on the EZK WOT maps by at least 1 degree for each pound of boost, or a blanket 6 degrees.
Does anyone have a step by step Sharktuning guide for a slow learner like me? Or, is it as simple as hook up the WBO2 and drive around letting it autotune to start and go from there?
Last edited by Brett Jenkins; 08-18-2023 at 06:02 PM.
08-18-2023, 08:22 PM
#2
Rennlist Member
Feel free to reach out (if you haven't already) to Jim Corenman via this site:
Sharkplotter
He is our US Sharktuning guru and can provide excellent guidance. I am on the similar and slightly rougher uphill road of learning to SharkTune the two independent (and non-PEM) computers on my stroked 86.5.
Sharkplotter
He is our US Sharktuning guru and can provide excellent guidance. I am on the similar and slightly rougher uphill road of learning to SharkTune the two independent (and non-PEM) computers on my stroked 86.5.
Last edited by hernanca; 08-18-2023 at 08:26 PM.
08-18-2023, 09:10 PM
#3
Former Sponsor
I am trying to focus on my 85 supercharged widebody. It hasn't been on the road since the supercharger/engine gave up the ghost driving back from Sharks in The Badlands. The low-compression engine that Marcus built for it has been replaced with a stock 89 S4 engine with decent miles, new Vortech V-3 S-i supercharger, I think I'll be around 4-6 psi of boost, no intercooler., New MAF, TPS, CPS, hall sender, knock sensors, Siemens injectors, all ignition components, fuel lines, vacuum lines, Deatschwerks fuel pump and regulator, temp sensors, injector connectors, etc. Externally, pretty much everything was replaced. After my long failed attempt at using VEMS for engine management (not even Hans and Colin could help me wrap my head around what it needed to work), I decided to go back to LH/EZK and Sharktune it instead. The car is running/idling ok, but it is far from tuned. I've watched the ST Youtube videos over and over and I am slowly learning to use the ST2, but I thought maybe those who have experience tuning with it could speed up my learning curve. So, I have questions, and I appreciate anyone willing to answer them.
I have an AEM wideband O2 sensor LSU 4.9 plumbed into the DS of the X-pipe and it's feeding an AFR gauge. I have a new stock Bosch O2 sensor feeding the LH. I see a disparity in the current AFR readings, the WBO2 shows near stoich at idle, but the stock O2 shows around 13 in the sharktuner. I believe I should be using the WBO2 to do the sharktuning, mine has a 5v analog output. Is this what should be connected to the sharktuner. If so, where/how?
I see some mention in the manual that I might need to start with a copy of a sharktuned ezk map since I am supercharged, or just do as suggested and retard the higher load values on the EZK Cruise map and also the high rpm cells on the EZK WOT maps by at least 1 degree for each pound of boost, or a blanket 6 degrees.
Does anyone have a step by step Sharktuning guide for a slow learner like me? Or, is it as simple as hook up the WBO2 and drive around letting it autotune to start and go from there?
I have an AEM wideband O2 sensor LSU 4.9 plumbed into the DS of the X-pipe and it's feeding an AFR gauge. I have a new stock Bosch O2 sensor feeding the LH. I see a disparity in the current AFR readings, the WBO2 shows near stoich at idle, but the stock O2 shows around 13 in the sharktuner. I believe I should be using the WBO2 to do the sharktuning, mine has a 5v analog output. Is this what should be connected to the sharktuner. If so, where/how?
I see some mention in the manual that I might need to start with a copy of a sharktuned ezk map since I am supercharged, or just do as suggested and retard the higher load values on the EZK Cruise map and also the high rpm cells on the EZK WOT maps by at least 1 degree for each pound of boost, or a blanket 6 degrees.
Does anyone have a step by step Sharktuning guide for a slow learner like me? Or, is it as simple as hook up the WBO2 and drive around letting it autotune to start and go from there?
I'd swap O2 sensors and see if this is your case.
08-18-2023, 09:11 PM
#4
Former Sponsor
Feel free to reach out (if you haven't already) to Jim Corenman via this site:
Sharkplotter
He is our US Sharktuning guru and can provide excellent guidance. I am on the similar and slightly rougher uphill road of learning to SharkTune the two independent (and non-PEM) computers on my stroked 86.5.
Sharkplotter
He is our US Sharktuning guru and can provide excellent guidance. I am on the similar and slightly rougher uphill road of learning to SharkTune the two independent (and non-PEM) computers on my stroked 86.5.
I've been converting my big engines with this injection system to '87-'95 style, only for the ease of tuning.....and the knock sensors.
Last edited by GregBBRD; 08-18-2023 at 09:12 PM.
08-18-2023, 10:06 PM
#5
Rennlist Member
I am trying to focus on my 85 supercharged widebody. It hasn't been on the road since the supercharger/engine gave up the ghost driving back from Sharks in The Badlands. The low-compression engine that Marcus built for it has been replaced with a stock 89 S4 engine with decent miles, new Vortech V-3 S-i supercharger, I think I'll be around 4-6 psi of boost, no intercooler., New MAF, TPS, CPS, hall sender, knock sensors, Siemens injectors, all ignition components, fuel lines, vacuum lines, Deatschwerks fuel pump and regulator, temp sensors, injector connectors, etc. Externally, pretty much everything was replaced. After my long failed attempt at using VEMS for engine management (not even Hans and Colin could help me wrap my head around what it needed to work), I decided to go back to LH/EZK and Sharktune it instead. The car is running/idling ok, but it is far from tuned. I've watched the ST Youtube videos over and over and I am slowly learning to use the ST2, but I thought maybe those who have experience tuning with it could speed up my learning curve. So, I have questions, and I appreciate anyone willing to answer them.
I have an AEM wideband O2 sensor LSU 4.9 plumbed into the DS of the X-pipe and it's feeding an AFR gauge. I have a new stock Bosch O2 sensor feeding the LH. I see a disparity in the current AFR readings, the WBO2 shows near stoich at idle, but the stock O2 shows around 13 in the sharktuner. I believe I should be using the WBO2 to do the sharktuning, mine has a 5v analog output. Is this what should be connected to the sharktuner. If so, where/how?
I see some mention in the manual that I might need to start with a copy of a sharktuned ezk map since I am supercharged, or just do as suggested and retard the higher load values on the EZK Cruise map and also the high rpm cells on the EZK WOT maps by at least 1 degree for each pound of boost, or a blanket 6 degrees.
Does anyone have a step by step Sharktuning guide for a slow learner like me? Or, is it as simple as hook up the WBO2 and drive around letting it autotune to start and go from there?
I have an AEM wideband O2 sensor LSU 4.9 plumbed into the DS of the X-pipe and it's feeding an AFR gauge. I have a new stock Bosch O2 sensor feeding the LH. I see a disparity in the current AFR readings, the WBO2 shows near stoich at idle, but the stock O2 shows around 13 in the sharktuner. I believe I should be using the WBO2 to do the sharktuning, mine has a 5v analog output. Is this what should be connected to the sharktuner. If so, where/how?
I see some mention in the manual that I might need to start with a copy of a sharktuned ezk map since I am supercharged, or just do as suggested and retard the higher load values on the EZK Cruise map and also the high rpm cells on the EZK WOT maps by at least 1 degree for each pound of boost, or a blanket 6 degrees.
Does anyone have a step by step Sharktuning guide for a slow learner like me? Or, is it as simple as hook up the WBO2 and drive around letting it autotune to start and go from there?
Jim's harness and innovate wide band set up
It's that true?
Last edited by Kevin in Atlanta; 08-18-2023 at 10:12 PM.
08-18-2023, 10:21 PM
#6
Rennlist Member
If it makes you feel any better I watched Jim and Greg use a sharktuner on one of Greg's strokers and had no clue what they were doing as much as they tried to explain it to me. it is a black art to me.
I would pay handsomely for a seminar. I have even offered an expert to teach me. So far no luck.
Good luck. I'm watching this conversation very closely.
I would pay handsomely for a seminar. I have even offered an expert to teach me. So far no luck.
Good luck. I'm watching this conversation very closely.
08-19-2023, 09:30 AM
#7
Drifting
Thread Starter
Feel free to reach out (if you haven't already) to Jim Corenman via this site:
Sharkplotter
He is our US Sharktuning guru and can provide excellent guidance. I am on the similar and slightly rougher uphill road of learning to SharkTune the two independent (and non-PEM) computers on my stroked 86.5.
Sharkplotter
He is our US Sharktuning guru and can provide excellent guidance. I am on the similar and slightly rougher uphill road of learning to SharkTune the two independent (and non-PEM) computers on my stroked 86.5.
I tried to contact him through the website but the email bounces. I was hoping to talk to him a bit at Rendezvous, but as we know they had to turn back. I'll try contacting him through Rennlist.
Trending Topics
08-19-2023, 09:32 AM
#8
Drifting
Thread Starter
08-19-2023, 10:16 AM
#9
Rennlist Member
08-20-2023, 03:48 PM
#12
Drifting
Thread Starter
If I am reading this correctly, instead of an LC-2 wideband cable, I'll be connecting my 5v analog output + and - . But which of the 5 connection spots on the right of the diagram do I use? I think yellow from the Lc-2 in the diagram is analog output + but which would be analog output -?
Last edited by Brett Jenkins; 08-20-2023 at 04:12 PM.
08-20-2023, 04:43 PM
#13
Rennlist Member
If I am reading this correctly, instead of an LC-2 wideband cable, I'll be connecting my 5v analog output + and - . But which of the 5 connection spots on the right of the diagram do I use? I think yellow from the Lc-2 in the diagram is analog output + but which would be analog output -?
08-20-2023, 06:29 PM
#14
Rennlist Member
When learning how to tune my 91 SC GT I referenced Louie's notes often and they were a tremendous help. He starts on post #11.
https://rennlist.com/forums/928-foru...maf-usage.html
https://rennlist.com/forums/928-foru...maf-usage.html